Revision ac512a79
Added by Andreas Müller almost 2 years ago
cdmlib-services/src/main/java/eu/etaxonomy/cdm/api/service/IService.java | ||
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/**
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* Copyright (C) 2007 EDIT
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* European Distributed Institute of Taxonomy
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* http://www.e-taxonomy.eu
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* See LICENSE.TXT at the top of this package for the full license terms.
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*/
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package eu.etaxonomy.cdm.api.service;
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import java.util.Collection;
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import java.util.List;
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import java.util.Map;
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import java.util.Set;
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import java.util.UUID;
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import org.hibernate.LockOptions;
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import org.hibernate.Session;
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import org.hibernate.criterion.Criterion;
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import org.hibernate.event.spi.MergeEvent;
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import eu.etaxonomy.cdm.api.service.pager.Pager;
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import eu.etaxonomy.cdm.model.common.ICdmBase;
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import eu.etaxonomy.cdm.persistence.dao.common.Restriction;
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import eu.etaxonomy.cdm.persistence.dao.initializer.IBeanInitializer;
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import eu.etaxonomy.cdm.persistence.dto.MergeResult;
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import eu.etaxonomy.cdm.persistence.hibernate.PostMergeEntityListener;
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import eu.etaxonomy.cdm.persistence.query.Grouping;
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import eu.etaxonomy.cdm.persistence.query.MatchMode;
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import eu.etaxonomy.cdm.persistence.query.OrderHint;
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import javassist.tools.rmi.ObjectNotFoundException; |
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/**
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* @author a.kohlbecker
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* @since 23.03.2009
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*
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* @param <T>
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*/
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public interface IService<T extends ICdmBase>{ |
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// FIXME what does this method do?
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public void clear(); |
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/**
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* Obtain the specified lock mode on the given object t
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* <BR>
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* NOTE: with hibernate 4 we changed parameter lockMode to lockOptions. LockOptions can be created from LockMode.
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*/
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public void lock(T t, LockOptions lockOptions); |
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/**
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* Refreshes a given object t using the specified lockmode
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*
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* All bean properties given in the <code>propertyPaths</code> parameter are recursively initialized.
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* <p>
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* For detailed description and examples <b>please refer to:</b>
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* {@link IBeanInitializer#initialize(Object, List)}
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*
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* NOTE: in the case of lockmodes that hit the database (e.g. LockMode.READ), you will need to re-initialize
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* child propertiesto avoid a HibernateLazyInitializationException (even if the properties of the child
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* were initialized prior to the refresh).
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*
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* NOTE: with hibernate 4 we changed parameter lockMode to lockOptions. LockOptions can be created from LockMode.
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*
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* @param t
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* @param lockOptions
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*/
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public void refresh(T t, LockOptions lockOptions, List<String> propertyPaths); |
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/**
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* Returns a count of all entities of type <T> optionally restricted
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* to objects belonging to a class that that extends <T>
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*
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* @param clazz the class of entities to be counted (can be null to count all entities of type <T>)
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* @return a count of entities
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*/
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public int count(Class<? extends T> clazz); |
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/**
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* Delete an existing persistent object
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*
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* @param persistentObject the object to be deleted
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* @return the unique identifier of the deleted entity
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* @return deleteResult
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*/
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public DeleteResult delete(UUID persistentObjectUUID) ; |
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/**
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* Returns true if an entity of type <T> with a unique identifier matching the
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* identifier supplied exists in the database, or false if no such entity can be
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* found.
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* @param uuid the unique identifier of the entity required
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* @return an entity of type <T> matching the uuid, or null if that entity does not exist
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*/
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public boolean exists(UUID uuid); |
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/**
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* Return a list of persisted entities that match the unique identifier
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* set supplied as an argument
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*
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* @param uuidSet the set of unique identifiers of the entities required
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* @return a list of entities of type <T>
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*/
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public List<T> find(Set<UUID> uuidSet); |
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/**
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* Return a list of persisted entities that match the unique identifier
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* set supplied as an argument and that do match the supplied class.
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*
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* @param uuidSet the set of unique identifiers of the entities required
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* @return a list of entities of type <T>
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*/
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public <S extends T> List<S> find(Class<S> clazz, Set<UUID> uuidSet); |
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/**
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* Return a persisted entity that matches the unique identifier
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* supplied as an argument, or null if the entity does not exist
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*
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* @param uuid the unique identifier of the entity required
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* @return an entity of type <T>, or null if the entity does not exist or uuid is <code>null</code>
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*/
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public T find(UUID uuid); |
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/**
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* Return a persisted entity that matches the unique identifier
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* supplied as an argument, or null if the entity does not exist.
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* <p>
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* The difference between this method and {@link #find(UUID) find} is
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* that this method makes the hibernate read query with the
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* {@link org.hibernate.FlushMode FlushMode} for the session set to 'MANUAL'
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* <p>
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* <b>WARNING:</b>This method should <em>ONLY</em> be used when it is absolutely
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* necessary and safe to ensure that the hibernate session is not flushed before a read
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* query. A use case for this is the {@link eu.etaxonomy.cdm.api.cache.CdmCacherBase CdmCacher},
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* (ticket #4276) where a call to {@link eu.etaxonomy.cdm.api.cache.CdmCacherBase#load(UUID) load}
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* the CDM Entity using the standard {@link #find(UUID) find} method results in recursion
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* due to the fact that the {@link #find(UUID) find} method triggers a hibernate session
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* flush which eventually could call {@link eu.etaxonomy.cdm.model.name.NonViralName#getNameCache getNameCache},
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* which in turn (in the event that name cache is null) eventually calls the
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* {@link eu.etaxonomy.cdm.api.cache.CdmCacherBase#load(UUID uuid) load} again.
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* Apart from these kind of exceptional circumstances, the standard {@link #find(UUID) find}
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* method should always be used to ensure that the persistence layer is always in sync with the
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* underlying database.
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*
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* @param uuid
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* @return an entity of type <T>, or null if the entity does not exist or uuid is <code>null</code>
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*/
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public T findWithoutFlush(UUID uuid); |
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/**
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* Return a persisted entity that matches the database identifier
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* supplied as an argument, or null if the entity does not exist
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*
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* @param id the database identifier of the entity required
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* @return an entity of type <T>, or null if the entity does not exist
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*/
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public T find(int id); |
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/**
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* Returns a <code>List</code> of persisted entities that match the database identifiers.
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* Returns an empty list if no identifier matches.
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*
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* @param idSet
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* @return
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* @deprecated use {@link #loadByIds(Set, List)} instead
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*/
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@Deprecated
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public List<T> findById(Set<Integer> idSet); //can't be called find(Set<Integer>) as this conflicts with find(Set<UUID) |
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// FIXME should we expose this method?
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public Session getSession(); |
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/**
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* Returns a sublist of objects matching the grouping projections supplied using the groups parameter
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*
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* It would be nice to be able to return a pager, but for the moment hibernate doesn't
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* seem to support this (HHH-3238 - impossible to get the rowcount for a criteria that has projections)
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*
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* @param clazz Restrict the query to objects of a certain class, or null for all objects of type T or subclasses
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* @param limit the maximum number of entities returned (can be null to return
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* all entities)
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* @param start The (0-based) offset from the start of the recordset (can be null, equivalent of starting at the beginning of the recordset)
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* @param groups The grouping objects representing a projection, plus an optional ordering on that projected property
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* @param propertyPaths paths initialized on the returned objects - only applied to the objects returned from the first grouping
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* @return a list of arrays of objects, each matching the grouping objects supplied in the parameters.
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*/
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public List<Object[]> group(Class<? extends T> clazz,Integer limit, Integer start, List<Grouping> groups, List<String> propertyPaths); |
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/**
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* Returns a list of entities of type <T> optionally restricted
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* to objects belonging to a class that extends <T>
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*
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* @param type The type of entities to return (can be null to count all entities of type <T>)
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* @param limit The maximum number of objects returned (can be null for all matching objects)
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* @param start The offset from the start of the result set (0 - based, can be null - equivalent of starting at the beginning of the recordset)
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* @param orderHints
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* Supports path like <code>orderHints.propertyNames</code> which
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* include *-to-one properties like createdBy.username or
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* authorTeam.persistentTitleCache
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* @param propertyPaths properties to be initialized
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* @return
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*/
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//TODO refactor to public <S extends T> List<T> list(Class<S> type, Integer limit, Integer start, List<OrderHint> orderHints, List<String> propertyPaths);
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public <S extends T> List<S> list(Class<S> type, Integer limit, Integer start, List<OrderHint> orderHints, List<String> propertyPaths); |
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/**
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* Finds the cdm entity specified by the <code>uuid</code> parameter and
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* initializes all its *ToOne relations.
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*
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* @param uuid
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* @return the cdm entity or <code>null</code> if not object with given uuid exists or uuid is <code>null</code>
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*/
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public T load(UUID uuid); |
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/**
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* Return a persisted entity that matches the database identifier
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* supplied as an argument, or null if the entity does not exist
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*
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* @param id the database identifier of the entity required
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* @param propertyPaths
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* @return
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*/
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public T load(int id, List<String> propertyPaths); |
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/**
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* Returns the object for the given id without initializing it. So the returned
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* object usually is a proxy object except for the case when it was already initialized
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* before in the same session.<BR>
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* This methods wraps {@link Session#load(Class, java.io.Serializable)}.<BR>
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* It does not check, if the object really exists but throws an {@link ObjectNotFoundException}
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* exception when no record with the given id exists in the database.
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* @return
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* the (uninitialized proxy) object
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*/
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public T loadWithoutInitializing(int id);
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/**
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* Finds the cdm entity specified by the <code>uuid</code> parameter and
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* recursively initializes all bean properties given in the
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* <code>propertyPaths</code> parameter.
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* <p>
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* For detailed description and examples <b>please refer to:</b>
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* {@link IBeanInitializer#initialize(Object, List)}
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*
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* @param uuid
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* @return the cdm entity or <code>null</code> if not object with given uuid exists or uuid is <code>null</code>
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*/
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public T load(UUID uuid, List<String> propertyPaths);
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/**
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* Finds the cdm entities specified by the <code>uuids</code>,
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* recursively initializes all bean properties given in the
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* <code>propertyPaths</code> parameter and returns the initialised
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* entity list;
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* <p>
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* For detailed description and examples <b>please refer to:</b>
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* {@link IBeanInitializer#initialize(Object, List)}
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* @param uuids
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* @param propertyPaths
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* @return
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*/
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public List<T> load(List<UUID> uuids, List<String> propertyPaths);
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/**
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* Copy the state of the given object onto the persistent object with the same identifier.
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*
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* @param transientObject the entity to be merged
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* @return The unique identifier of the persisted entity
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*/
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public T merge(T transientObject);
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/**
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* Returns a paged list of entities of type <T> optionally restricted
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* to objects belonging to a class that that extends <T>
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*
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* @param type The type of entities to return (can be null to count all entities of type <T>)
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* @param pageSize The maximum number of objects returned (can be null for all matching objects)
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* @param pageNumber The offset (in pageSize chunks) from the start of the result set (0 - based,
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* can be null, equivalent of starting at the beginning of the recordset)
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* @param orderHints
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* Supports path like <code>orderHints.propertyNames</code> which
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* include *-to-one properties like createdBy.username or
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* authorTeam.persistentTitleCache
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* @param propertyPaths properties to be initialized
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* @return a pager of objects of type <T>
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*/
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public <S extends T> Pager<S> page(Class<S> type, Integer pageSize, Integer pageNumber, List<OrderHint> orderHints, List<String> propertyPaths);
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/**
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* Re-read the state of the given instance from the underlying database.
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*
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* Hibernate claims that it is inadvisable to use refresh in long-running-sessions.
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* I don't really see where we would get into a situation where problems as discussed
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* this forum thread would apply for our scenario
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*
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* http://forum.hibernate.org/viewtopic.php?t=974544
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*
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* @param persistentObject the object to be refreshed
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* @return the unique identifier
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*/
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public UUID refresh(T persistentObject);
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/**
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* Save a collection containing new entities (persists the entities)
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* @param newInstances the new entities to be persisted
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* @return A Map containing the new entities, keyed using the generated UUID's
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* of those entities
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*/
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public Map<UUID,T> save(Collection<? extends T> newInstances);
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/**
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* Save a new entity (persists the entity)
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* @param newInstance the new entity to be persisted
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* @return The new persistent entity
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*/
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public <S extends T> S save(S newInstance);
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/**
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* Save a new entity or update the persistent state of an existing
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* transient entity that has been persisted previously
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*
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* @param transientObject the entity to be persisted
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* @return The unique identifier of the persisted entity
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*/
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public UUID saveOrUpdate(T transientObject);
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/**
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* Save new entities or update the persistent state of existing
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* transient entities that have been persisted previously
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*
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* @param transientObjects the entities to be persisted
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* @return The unique identifier of the persisted entity
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*/
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public Map<UUID,T> saveOrUpdate(Collection<T> transientObjects);
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/**
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* Update the persistent state of an existing transient entity
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* that has been persisted previously
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*
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* @param transientObject the entity to be persisted
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* @return The unique identifier of the persisted entity
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*/
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public UUID update(T transientObject);
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/**
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* Simply calls the load method.
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* Required specifically for the editor to allow load calls which
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* can also update the session cache.
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*
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* @param uuid
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* @return
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*/
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public T loadWithUpdate(UUID uuid);
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/**
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* Method that lists the objects matching the example provided.
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* The includeProperties property is used to specify which properties of the example are used.
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*
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* If includeProperties is null or empty, then all literal properties are used (restrictions are
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* applied as in the Hibernate Query-By-Example API call Example.create(object)).
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*
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* If includeProperties is not empty then only literal properties that are named in the set are used to
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* create restrictions, *PLUS* any *ToOne related entities. Related entities are matched on ID, not by
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* their internal literal values (e.g. the call is criteria.add(Restrictions.eq(property,relatedObject)), not
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* criteria.createCriteria(property).add(Example.create(relatedObject)))
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*
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* @param example
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* @param includeProperties
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* @param limit the maximum number of entities returned (can be null to return
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* all entities)
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* @param start The (0-based) offset from the start of the recordset
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* @param orderHints
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* Supports path like <code>orderHints.propertyNames</code> which
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* include *-to-one properties like createdBy.username or
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* @param propertyPaths paths initialized on the returned objects - only applied to the objects returned from the first grouping
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* @return a list of matching objects
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*/
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public <S extends T> List<S> list(S example, Set<String> includeProperties, Integer limit, Integer start, List<OrderHint> orderHints, List<String> propertyPaths);
|
|
383 |
|
|
384 |
public DeleteResult delete(T persistentObject);
|
|
385 |
|
|
386 |
/**
|
|
387 |
* Deletes a collection of persistent objects correponding to the
|
|
388 |
* given list of uuids. The result will have status as ok if even one
|
|
389 |
* of the deletes is successful, else error.
|
|
390 |
*
|
|
391 |
* @param persistentObjectUUIDs uuids of persistent objects to delete
|
|
392 |
* @return DeleteResult object
|
|
393 |
*/
|
|
394 |
public DeleteResult delete(Collection<UUID> persistentObjectUUIDs);
|
|
395 |
|
|
396 |
/**
|
|
397 |
* Merges a list of detached objects and returns the new
|
|
398 |
* list of merged objects
|
|
399 |
*
|
|
400 |
* @param detachedObjects
|
|
401 |
* @return a list of merged objects
|
|
402 |
*/
|
|
403 |
public List<T> merge(List<T> detachedObjects);
|
|
404 |
|
|
405 |
/**
|
|
406 |
* Loads a batch of entities referenced by their ids.
|
|
407 |
*
|
|
408 |
* @param idSet
|
|
409 |
* @param propertyPaths
|
|
410 |
* @return
|
|
411 |
*/
|
|
412 |
List<T> loadByIds(List<Integer> idSet, List<String> propertyPaths);
|
|
413 |
|
|
414 |
/**
|
|
415 |
* Loads a batch of entities referenced by their ids.
|
|
416 |
* @param idSet
|
|
417 |
* @param orderHints
|
|
418 |
* @param propertyPaths
|
|
419 |
* @return
|
|
420 |
*/
|
|
421 |
List<T> loadByIds(List<Integer> idSet, List<OrderHint> orderHints, List<String> propertyPaths);
|
|
422 |
|
|
423 |
|
|
424 |
/**
|
|
425 |
* This method allows for the possibility of returning the input transient
|
|
426 |
* entities instead of the merged persistent entity
|
|
427 |
*
|
|
428 |
* WARNING : This method should never be used when the objective of the merge
|
|
429 |
* is to attach to an existing session which is the standard use case.
|
|
430 |
* This method should only be used in the
|
|
431 |
* case of an external call which does not use hibernate sessions and is
|
|
432 |
* only interested in the entity as a POJO. Apart from the session information
|
|
433 |
* the only other difference between the transient and persisted object is in the case
|
|
434 |
* of new objects (id=0) where hibernate sets the id after commit. This id is copied
|
|
435 |
* over to the transient entity in {@link PostMergeEntityListener#onMerge(MergeEvent,Map)}
|
|
436 |
* making the two objects identical and allowing the transient object to be used further
|
|
437 |
* as a POJO
|
|
438 |
*
|
|
439 |
* @param detachedObjects
|
|
440 |
* @param returnTransientEntity
|
|
441 |
* @return
|
|
442 |
*/
|
|
443 |
public List<MergeResult<T>> merge(List<T> detachedObjects, boolean returnTransientEntity);
|
|
444 |
|
|
445 |
/**
|
|
446 |
* This method allows for the possibility of returning the input transient
|
|
447 |
* entity instead of the merged persistent entity
|
|
448 |
*
|
|
449 |
* WARNING : This method should never be used when the objective of the merge
|
|
450 |
* is to attach to an existing session which is the standard use case.
|
|
451 |
* This method should only be used in the case of an external call which does
|
|
452 |
* not use hibernate sessions and is only interested in the entity as a POJO.
|
|
453 |
* This method returns the root merged transient entity as well as all newly merged
|
|
454 |
* persistent entities within the return object.
|
|
455 |
*
|
|
456 |
* @param newInstance
|
|
457 |
* @param returnTransientEntity
|
|
458 |
* @return
|
|
459 |
*/
|
|
460 |
public MergeResult<T> merge(T newInstance, boolean returnTransientEntity);
|
|
461 |
|
|
462 |
public <S extends T> Pager<S> page(Class<S> clazz, String param, String queryString, MatchMode matchmode, List<Criterion> criteria, Integer pageSize, Integer pageIndex, List<OrderHint> orderHints, List<String> propertyPaths);
|
|
463 |
|
|
464 |
public <S extends T> Pager<S> pageByParamWithRestrictions(Class<S> clazz, String param, String queryString, MatchMode matchmode, List<Restriction<?>> restrictions, Integer pageSize, Integer pageIndex, List<OrderHint> orderHints,
|
|
465 |
List<String> propertyPaths);
|
|
466 |
|
|
467 |
public <S extends T> Pager<S> page(Class<S> clazz, List<Restriction<?>> restrictions, Integer pageSize, Integer pageIndex,
|
|
468 |
List<OrderHint> orderHints, List<String> propertyPaths);
|
|
469 |
|
|
1 |
/** |
|
2 |
* Copyright (C) 2007 EDIT |
|
3 |
* European Distributed Institute of Taxonomy |
|
4 |
* http://www.e-taxonomy.eu |
|
5 |
* |
|
6 |
* The contents of this file are subject to the Mozilla Public License Version 1.1 |
|
7 |
* See LICENSE.TXT at the top of this package for the full license terms. |
|
8 |
*/ |
|
9 |
|
|
10 |
package eu.etaxonomy.cdm.api.service; |
|
11 |
|
|
12 |
|
|
13 |
import java.util.Collection; |
|
14 |
import java.util.List; |
|
15 |
import java.util.Map; |
|
16 |
import java.util.Set; |
|
17 |
import java.util.UUID; |
|
18 |
|
|
19 |
import org.hibernate.LockOptions; |
|
20 |
import org.hibernate.Session; |
|
21 |
import org.hibernate.criterion.Criterion; |
|
22 |
import org.hibernate.event.spi.MergeEvent; |
|
23 |
|
|
24 |
import eu.etaxonomy.cdm.api.service.pager.Pager; |
|
25 |
import eu.etaxonomy.cdm.model.common.ICdmBase; |
|
26 |
import eu.etaxonomy.cdm.persistence.dao.common.Restriction; |
|
27 |
import eu.etaxonomy.cdm.persistence.dao.initializer.IBeanInitializer; |
|
28 |
import eu.etaxonomy.cdm.persistence.dto.MergeResult; |
|
29 |
import eu.etaxonomy.cdm.persistence.hibernate.PostMergeEntityListener; |
|
30 |
import eu.etaxonomy.cdm.persistence.query.Grouping; |
|
31 |
import eu.etaxonomy.cdm.persistence.query.MatchMode; |
|
32 |
import eu.etaxonomy.cdm.persistence.query.OrderHint; |
|
33 |
|
|
34 |
/** |
|
35 |
* @author a.kohlbecker
|
|
36 |
* @since 23.03.2009
|
|
37 |
* |
|
38 |
* @param <T>
|
|
39 |
*/
|
|
40 |
public interface IService<T extends ICdmBase>{
|
|
41 |
|
|
42 |
// FIXME what does this method do? |
|
43 |
public void clear();
|
|
44 |
|
|
45 |
/** |
|
46 |
* Obtain the specified lock mode on the given object t
|
|
47 |
* <BR>
|
|
48 |
* NOTE: with hibernate 4 we changed parameter lockMode to lockOptions. LockOptions can be created from LockMode.
|
|
49 |
*/
|
|
50 |
public void lock(T t, LockOptions lockOptions);
|
|
51 |
|
|
52 |
/** |
|
53 |
* Refreshes a given object t using the specified lockmode
|
|
54 |
* |
|
55 |
* All bean properties given in the <code>propertyPaths</code> parameter are recursively initialized.
|
|
56 |
* <p>
|
|
57 |
* For detailed description and examples <b>please refer to:</b>
|
|
58 |
* {@link IBeanInitializer#initialize(Object, List)}
|
|
59 |
* |
|
60 |
* NOTE: in the case of lockmodes that hit the database (e.g. LockMode.READ), you will need to re-initialize
|
|
61 |
* child propertiesto avoid a HibernateLazyInitializationException (even if the properties of the child
|
|
62 |
* were initialized prior to the refresh).
|
|
63 |
* |
|
64 |
* NOTE: with hibernate 4 we changed parameter lockMode to lockOptions. LockOptions can be created from LockMode.
|
|
65 |
* |
|
66 |
* @param t
|
|
67 |
* @param lockOptions
|
|
68 |
*/
|
|
69 |
public void refresh(T t, LockOptions lockOptions, List<String> propertyPaths);
|
|
70 |
|
|
71 |
/** |
|
72 |
* Returns a count of all entities of type <T> optionally restricted
|
|
73 |
* to objects belonging to a class that that extends <T>
|
|
74 |
* |
|
75 |
* @param clazz the class of entities to be counted (can be null to count all entities of type <T>)
|
|
76 |
* @return a count of entities
|
|
77 |
*/
|
|
78 |
public int count(Class<? extends T> clazz);
|
|
79 |
|
|
80 |
/** |
|
81 |
* Delete an existing persistent object
|
|
82 |
* |
|
83 |
* @param persistentObject the object to be deleted
|
|
84 |
* @return the unique identifier of the deleted entity
|
|
85 |
* @return deleteResult
|
|
86 |
*/
|
|
87 |
public DeleteResult delete(UUID persistentObjectUUID) ;
|
|
88 |
|
|
89 |
/** |
|
90 |
* Returns true if an entity of type <T> with a unique identifier matching the
|
|
91 |
* identifier supplied exists in the database, or false if no such entity can be
|
|
92 |
* found.
|
|
93 |
* @param uuid the unique identifier of the entity required
|
|
94 |
* @return an entity of type <T> matching the uuid, or null if that entity does not exist
|
|
95 |
*/
|
|
96 |
public boolean exists(UUID uuid);
|
|
97 |
|
|
98 |
/** |
|
99 |
* Return a list of persisted entities that match the unique identifier
|
|
100 |
* set supplied as an argument
|
|
101 |
* |
|
102 |
* @param uuidSet the set of unique identifiers of the entities required
|
|
103 |
* @return a list of entities of type <T>
|
|
104 |
*/
|
|
105 |
public List<T> find(Set<UUID> uuidSet);
|
|
106 |
|
|
107 |
/** |
|
108 |
* Return a list of persisted entities that match the unique identifier
|
|
109 |
* set supplied as an argument and that do match the supplied class.
|
|
110 |
* |
|
111 |
* @param uuidSet the set of unique identifiers of the entities required
|
|
112 |
* @return a list of entities of type <T>
|
|
113 |
*/
|
|
114 |
public <S extends T> List<S> find(Class<S> clazz, Set<UUID> uuidSet);
|
|
115 |
|
|
116 |
/** |
|
117 |
* Return a persisted entity that matches the unique identifier
|
|
118 |
* supplied as an argument, or null if the entity does not exist
|
|
119 |
* |
|
120 |
* @param uuid the unique identifier of the entity required
|
|
121 |
* @return an entity of type <T>, or null if the entity does not exist or uuid is <code>null</code>
|
|
122 |
*/
|
|
123 |
public T find(UUID uuid);
|
|
124 |
|
|
125 |
/** |
|
126 |
* Return a persisted entity that matches the unique identifier
|
|
127 |
* supplied as an argument, or null if the entity does not exist.
|
|
128 |
* <p>
|
|
129 |
* The difference between this method and {@link #find(UUID) find} is
|
|
130 |
* that this method makes the hibernate read query with the
|
|
131 |
* {@link org.hibernate.FlushMode FlushMode} for the session set to 'MANUAL'
|
|
132 |
* <p>
|
|
133 |
* <b>WARNING:</b>This method should <em>ONLY</em> be used when it is absolutely
|
|
134 |
* necessary and safe to ensure that the hibernate session is not flushed before a read
|
|
135 |
* query. A use case for this is the {@link eu.etaxonomy.cdm.api.cache.CdmCacherBase CdmCacher},
|
|
136 |
* (ticket #4276) where a call to {@link eu.etaxonomy.cdm.api.cache.CdmCacherBase#load(UUID) load}
|
|
137 |
* the CDM Entity using the standard {@link #find(UUID) find} method results in recursion
|
|
138 |
* due to the fact that the {@link #find(UUID) find} method triggers a hibernate session
|
|
139 |
* flush which eventually could call {@link eu.etaxonomy.cdm.model.name.NonViralName#getNameCache getNameCache},
|
|
140 |
* which in turn (in the event that name cache is null) eventually calls the
|
|
141 |
* {@link eu.etaxonomy.cdm.api.cache.CdmCacherBase#load(UUID uuid) load} again.
|
|
142 |
* Apart from these kind of exceptional circumstances, the standard {@link #find(UUID) find}
|
|
143 |
* method should always be used to ensure that the persistence layer is always in sync with the
|
|
144 |
* underlying database.
|
|
145 |
* |
|
146 |
* @param uuid
|
|
147 |
* @return an entity of type <T>, or null if the entity does not exist or uuid is <code>null</code>
|
|
148 |
*/
|
|
149 |
public T findWithoutFlush(UUID uuid);
|
|
150 |
|
|
151 |
/** |
|
152 |
* Return a persisted entity that matches the database identifier
|
|
153 |
* supplied as an argument, or null if the entity does not exist
|
|
154 |
* |
|
155 |
* @param id the database identifier of the entity required
|
|
156 |
* @return an entity of type <T>, or null if the entity does not exist
|
|
157 |
*/
|
|
158 |
public T find(int id);
|
|
159 |
|
|
160 |
/** |
|
161 |
* Returns a <code>List</code> of persisted entities that match the database identifiers.
|
|
162 |
* Returns an empty list if no identifier matches.
|
|
163 |
* |
|
164 |
* @param idSet
|
|
165 |
* @return
|
|
166 |
* @deprecated use {@link #loadByIds(Set, List)} instead
|
|
167 |
*/
|
|
168 |
@Deprecated
|
|
169 |
public List<T> findById(Set<Integer> idSet); //can't be called find(Set<Integer>) as this conflicts with find(Set<UUID)
|
|
170 |
|
|
171 |
|
|
172 |
// FIXME should we expose this method? |
|
173 |
public Session getSession();
|
|
174 |
|
|
175 |
/** |
|
176 |
* Returns a sublist of objects matching the grouping projections supplied using the groups parameter
|
|
177 |
* |
|
178 |
* It would be nice to be able to return a pager, but for the moment hibernate doesn't
|
|
179 |
* seem to support this (HHH-3238 - impossible to get the rowcount for a criteria that has projections)
|
|
180 |
* |
|
181 |
* @param clazz Restrict the query to objects of a certain class, or null for all objects of type T or subclasses
|
|
182 |
* @param limit the maximum number of entities returned (can be null to return
|
|
183 |
* all entities)
|
|
184 |
* @param start The (0-based) offset from the start of the recordset (can be null, equivalent of starting at the beginning of the recordset)
|
|
185 |
* @param groups The grouping objects representing a projection, plus an optional ordering on that projected property
|
|
186 |
* @param propertyPaths paths initialized on the returned objects - only applied to the objects returned from the first grouping
|
|
187 |
* @return a list of arrays of objects, each matching the grouping objects supplied in the parameters.
|
|
188 |
*/
|
|
189 |
public List<Object[]> group(Class<? extends T> clazz,Integer limit, Integer start, List<Grouping> groups, List<String> propertyPaths);
|
|
190 |
|
|
191 |
/** |
|
192 |
* Returns a list of entities of type <T> optionally restricted
|
|
193 |
* to objects belonging to a class that extends <T>
|
|
194 |
* |
|
195 |
* @param type The type of entities to return (can be null to count all entities of type <T>)
|
|
196 |
* @param limit The maximum number of objects returned (can be null for all matching objects)
|
|
197 |
* @param start The offset from the start of the result set (0 - based, can be null - equivalent of starting at the beginning of the recordset)
|
|
198 |
* @param orderHints
|
|
199 |
* Supports path like <code>orderHints.propertyNames</code> which
|
|
200 |
* include *-to-one properties like createdBy.username or
|
|
201 |
* authorTeam.persistentTitleCache
|
|
202 |
* @param propertyPaths properties to be initialized
|
|
203 |
* @return
|
|
204 |
*/
|
|
205 |
//TODO refactor to public <S extends T> List<T> list(Class<S> type, Integer limit, Integer start, List<OrderHint> orderHints, List<String> propertyPaths);
|
|
206 |
public <S extends T> List<S> list(Class<S> type, Integer limit, Integer start, List<OrderHint> orderHints, List<String> propertyPaths);
|
|
207 |
|
|
208 |
/** |
|
209 |
* Finds the cdm entity specified by the <code>uuid</code> parameter and
|
|
210 |
* initializes all its *ToOne relations.
|
|
211 |
* |
|
212 |
* @param uuid
|
|
213 |
* @return the cdm entity or <code>null</code> if not object with given uuid exists or uuid is <code>null</code>
|
|
214 |
*/
|
|
215 |
public T load(UUID uuid);
|
|
216 |
|
|
217 |
/** |
|
218 |
* Return a persisted entity that matches the database identifier
|
|
219 |
* supplied as an argument, or null if the entity does not exist
|
|
220 |
* |
|
221 |
* @param id the database identifier of the entity required
|
|
222 |
* @param propertyPaths
|
|
223 |
* @return
|
|
224 |
*/
|
|
225 |
public T load(int id, List<String> propertyPaths);
|
|
226 |
|
|
227 |
/** |
|
228 |
* Returns the object for the given id without initializing it. So the returned
|
|
229 |
* object usually is a proxy object except for the case when it was already initialized
|
|
230 |
* before in the same session.<BR>
|
|
231 |
* This methods wraps {@link Session#load(Class, java.io.Serializable)}.<BR>
|
|
232 |
* It does not check, if the object really exists but throws an
|
|
233 |
* exception when no record with the given id exists in the database.
|
|
234 |
* |
|
235 |
* @return |
|
236 |
* the (uninitialized proxy) object |
|
237 |
*/ |
|
238 |
public T loadWithoutInitializing(int id); |
|
239 |
|
|
240 |
/** |
|
241 |
* Finds the cdm entity specified by the <code>uuid</code> parameter and |
|
242 |
* recursively initializes all bean properties given in the |
|
243 |
* <code>propertyPaths</code> parameter. |
|
244 |
* <p> |
|
245 |
* For detailed description and examples <b>please refer to:</b> |
|
246 |
* {@link IBeanInitializer#initialize(Object, List)} |
|
247 |
* |
|
248 |
* @param uuid |
|
249 |
* @return the cdm entity or <code>null</code> if not object with given uuid exists or uuid is <code>null</code> |
|
250 |
*/ |
|
251 |
public T load(UUID uuid, List<String> propertyPaths); |
|
252 |
|
|
253 |
|
|
254 |
/** |
|
255 |
* Finds the cdm entities specified by the <code>uuids</code>, |
|
256 |
* recursively initializes all bean properties given in the |
|
257 |
* <code>propertyPaths</code> parameter and returns the initialised |
|
258 |
* entity list; |
|
259 |
* <p> |
|
260 |
* For detailed description and examples <b>please refer to:</b> |
|
261 |
* {@link IBeanInitializer#initialize(Object, List)} |
|
262 |
* @param uuids |
|
263 |
* @param propertyPaths |
|
264 |
* @return |
|
265 |
*/ |
|
266 |
public List<T> load(List<UUID> uuids, List<String> propertyPaths); |
|
267 |
|
|
268 |
/** |
|
269 |
* Copy the state of the given object onto the persistent object with the same identifier. |
|
270 |
* |
|
271 |
* @param transientObject the entity to be merged |
|
272 |
* @return The unique identifier of the persisted entity |
|
273 |
*/ |
|
274 |
public T merge(T transientObject); |
|
275 |
|
|
276 |
/** |
|
277 |
* Returns a paged list of entities of type <T> optionally restricted |
|
278 |
* to objects belonging to a class that that extends <T> |
|
279 |
* |
|
280 |
* @param type The type of entities to return (can be null to count all entities of type <T>) |
|
281 |
* @param pageSize The maximum number of objects returned (can be null for all matching objects) |
|
282 |
* @param pageNumber The offset (in pageSize chunks) from the start of the result set (0 - based, |
|
283 |
* can be null, equivalent of starting at the beginning of the recordset) |
|
284 |
* @param orderHints |
|
285 |
* Supports path like <code>orderHints.propertyNames</code> which |
|
286 |
* include *-to-one properties like createdBy.username or |
|
287 |
* authorTeam.persistentTitleCache |
|
288 |
* @param propertyPaths properties to be initialized |
|
289 |
* @return a pager of objects of type <T> |
|
290 |
*/ |
|
291 |
public <S extends T> Pager<S> page(Class<S> type, Integer pageSize, Integer pageNumber, List<OrderHint> orderHints, List<String> propertyPaths); |
|
292 |
|
|
293 |
/** |
|
294 |
* Re-read the state of the given instance from the underlying database. |
|
295 |
* |
|
296 |
* Hibernate claims that it is inadvisable to use refresh in long-running-sessions. |
|
297 |
* I don't really see where we would get into a situation where problems as discussed |
|
298 |
* this forum thread would apply for our scenario |
|
299 |
* |
|
300 |
* http://forum.hibernate.org/viewtopic.php?t=974544 |
|
301 |
* |
|
302 |
* @param persistentObject the object to be refreshed |
|
303 |
* @return the unique identifier |
|
304 |
*/ |
|
305 |
public UUID refresh(T persistentObject); |
|
306 |
|
|
307 |
/** |
|
308 |
* Save a collection containing new entities (persists the entities) |
|
309 |
* @param newInstances the new entities to be persisted |
|
310 |
* @return A Map containing the new entities, keyed using the generated UUID's |
|
311 |
* of those entities |
|
312 |
*/ |
|
313 |
public Map<UUID,T> save(Collection<? extends T> newInstances); |
|
314 |
|
|
315 |
/** |
|
316 |
* Save a new entity (persists the entity) |
|
317 |
* @param newInstance the new entity to be persisted |
|
318 |
* @return The new persistent entity |
|
319 |
*/ |
|
320 |
public <S extends T> S save(S newInstance); |
|
321 |
|
|
322 |
/** |
|
323 |
* Save a new entity or update the persistent state of an existing |
|
324 |
* transient entity that has been persisted previously |
|
325 |
* |
|
326 |
* @param transientObject the entity to be persisted |
|
327 |
* @return The unique identifier of the persisted entity |
|
328 |
*/ |
|
329 |
public UUID saveOrUpdate(T transientObject); |
|
330 |
|
|
331 |
/** |
|
332 |
* Save new entities or update the persistent state of existing |
|
333 |
* transient entities that have been persisted previously |
|
334 |
* |
|
335 |
* @param transientObjects the entities to be persisted |
|
336 |
* @return The unique identifier of the persisted entity |
|
337 |
*/ |
|
338 |
public Map<UUID,T> saveOrUpdate(Collection<T> transientObjects); |
|
339 |
|
|
340 |
/** |
|
341 |
* Update the persistent state of an existing transient entity |
|
342 |
* that has been persisted previously |
|
343 |
* |
|
344 |
* @param transientObject the entity to be persisted |
|
345 |
* @return The unique identifier of the persisted entity |
|
346 |
*/ |
|
347 |
public UUID update(T transientObject); |
|
348 |
|
|
349 |
/** |
|
350 |
* Simply calls the load method. |
|
351 |
* Required specifically for the editor to allow load calls which |
|
352 |
* can also update the session cache. |
|
353 |
* |
|
354 |
* @param uuid |
|
355 |
* @return |
|
356 |
*/ |
|
357 |
public T loadWithUpdate(UUID uuid); |
|
358 |
|
|
359 |
/** |
|
360 |
* Method that lists the objects matching the example provided. |
|
361 |
* The includeProperties property is used to specify which properties of the example are used. |
|
362 |
* |
|
363 |
* If includeProperties is null or empty, then all literal properties are used (restrictions are |
|
364 |
* applied as in the Hibernate Query-By-Example API call Example.create(object)). |
|
365 |
* |
|
366 |
* If includeProperties is not empty then only literal properties that are named in the set are used to |
|
367 |
* create restrictions, *PLUS* any *ToOne related entities. Related entities are matched on ID, not by |
|
368 |
* their internal literal values (e.g. the call is criteria.add(Restrictions.eq(property,relatedObject)), not |
|
369 |
* criteria.createCriteria(property).add(Example.create(relatedObject))) |
|
370 |
* |
|
371 |
* @param example |
|
372 |
* @param includeProperties |
|
373 |
* @param limit the maximum number of entities returned (can be null to return |
|
374 |
* all entities) |
|
375 |
* @param start The (0-based) offset from the start of the recordset |
|
376 |
* @param orderHints |
|
377 |
* Supports path like <code>orderHints.propertyNames</code> which |
|
378 |
* include *-to-one properties like createdBy.username or |
|
379 |
* @param propertyPaths paths initialized on the returned objects - only applied to the objects returned from the first grouping |
|
380 |
* @return a list of matching objects |
|
381 |
*/ |
|
382 |
public <S extends T> List<S> list(S example, Set<String> includeProperties, Integer limit, Integer start, List<OrderHint> orderHints, List<String> propertyPaths); |
|
383 |
|
|
384 |
public DeleteResult delete(T persistentObject); |
|
385 |
|
|
386 |
/** |
|
387 |
* Deletes a collection of persistent objects correponding to the |
|
388 |
* given list of uuids. The result will have status as ok if even one |
|
389 |
* of the deletes is successful, else error. |
|
390 |
* |
|
391 |
* @param persistentObjectUUIDs uuids of persistent objects to delete |
|
392 |
* @return DeleteResult object |
|
393 |
*/ |
|
394 |
public DeleteResult delete(Collection<UUID> persistentObjectUUIDs); |
|
395 |
|
|
396 |
/** |
|
397 |
* Merges a list of detached objects and returns the new |
|
398 |
* list of merged objects |
|
399 |
* |
|
400 |
* @param detachedObjects |
|
401 |
* @return a list of merged objects |
|
402 |
*/ |
|
403 |
public List<T> merge(List<T> detachedObjects); |
|
404 |
|
|
405 |
/** |
|
406 |
* Loads a batch of entities referenced by their ids. |
|
407 |
* |
|
408 |
* @param idSet |
|
409 |
* @param propertyPaths |
|
410 |
* @return |
|
411 |
*/ |
|
412 |
List<T> loadByIds(List<Integer> idSet, List<String> propertyPaths); |
|
413 |
|
|
414 |
/** |
|
415 |
* Loads a batch of entities referenced by their ids. |
|
416 |
* @param idSet |
|
417 |
* @param orderHints |
|
418 |
* @param propertyPaths |
|
419 |
* @return |
|
420 |
*/ |
|
421 |
List<T> loadByIds(List<Integer> idSet, List<OrderHint> orderHints, List<String> propertyPaths); |
|
422 |
|
|
423 |
|
|
424 |
/** |
|
425 |
* This method allows for the possibility of returning the input transient |
|
426 |
* entities instead of the merged persistent entity |
|
427 |
* |
|
428 |
* WARNING : This method should never be used when the objective of the merge |
|
429 |
* is to attach to an existing session which is the standard use case. |
|
430 |
* This method should only be used in the |
|
431 |
* case of an external call which does not use hibernate sessions and is |
|
432 |
* only interested in the entity as a POJO. Apart from the session information |
|
433 |
* the only other difference between the transient and persisted object is in the case |
|
434 |
* of new objects (id=0) where hibernate sets the id after commit. This id is copied |
|
435 |
* over to the transient entity in {@link PostMergeEntityListener#onMerge(MergeEvent,Map)} |
|
436 |
* making the two objects identical and allowing the transient object to be used further |
|
437 |
* as a POJO |
|
438 |
* |
|
439 |
* @param detachedObjects |
|
440 |
* @param returnTransientEntity |
|
441 |
* @return |
|
442 |
*/ |
|
443 |
public List<MergeResult<T>> merge(List<T> detachedObjects, boolean returnTransientEntity); |
|
444 |
|
|
445 |
/** |
|
446 |
* This method allows for the possibility of returning the input transient |
|
447 |
* entity instead of the merged persistent entity |
|
448 |
* |
|
449 |
* WARNING : This method should never be used when the objective of the merge |
|
450 |
* is to attach to an existing session which is the standard use case. |
|
451 |
* This method should only be used in the case of an external call which does |
|
452 |
* not use hibernate sessions and is only interested in the entity as a POJO. |
|
453 |
* This method returns the root merged transient entity as well as all newly merged |
|
454 |
* persistent entities within the return object. |
|
455 |
* |
|
456 |
* @param newInstance |
|
457 |
* @param returnTransientEntity |
|
458 |
* @return |
|
459 |
*/ |
|
460 |
public MergeResult<T> merge(T newInstance, boolean returnTransientEntity); |
|
461 |
|
|
462 |
public <S extends T> Pager<S> page(Class<S> clazz, String param, String queryString, MatchMode matchmode, List<Criterion> criteria, Integer pageSize, Integer pageIndex, List<OrderHint> orderHints, List<String> propertyPaths); |
|
463 |
|
|
464 |
public <S extends T> Pager<S> pageByParamWithRestrictions(Class<S> clazz, String param, String queryString, MatchMode matchmode, List<Restriction<?>> restrictions, Integer pageSize, Integer pageIndex, List<OrderHint> orderHints, |
|
465 |
List<String> propertyPaths); |
|
466 |
|
|
467 |
public <S extends T> Pager<S> page(Class<S> clazz, List<Restriction<?>> restrictions, Integer pageSize, Integer pageIndex, |
|
468 |
List<OrderHint> orderHints, List<String> propertyPaths); |
|
469 |
|
|
470 | 470 |
} |
Also available in: Unified diff
ref #10067, ref #10077 remove javassist as bytecode provider from cdmlib