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// $Id$
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/**
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* Copyright (C) 2009 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.persistence.dao.initializer;
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import java.util.Collection;
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import java.util.List;
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import eu.etaxonomy.cdm.model.name.TaxonNameBase;
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import eu.etaxonomy.cdm.model.taxon.Taxon;
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/**
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* @author a.kohlbecker
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* @date 25.03.2009
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*
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*/
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public interface IBeanInitializer {
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/**
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* Wildcard for initializing all *ToOne relations of a <code>bean</code>.
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*/
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public static final String LOAD_2ONE_WILDCARD = "$";
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/**
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* Wildcard for initializing all *ToOne and all *ToMany relations of a <code>bean</code>.
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*/
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public static final String LOAD_2ONE_2MANY_WILDCARD = "*";
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/**
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* Initializes all *ToOne relations of the <code>bean</code>.
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*
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* @param bean
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*/
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public void load(Object bean);
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/**
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* Initializes all *ToOne and all *ToMany relations of the <code>bean</code>.
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*
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* @param bean
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*/
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public void loadFully(Object bean);
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/**
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* Allows more fine grained initialization not only of the root bean
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* identified by its <code>uuid</code> but also of specific paths of
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* the object graph. The sub graph to initialize may be defined in the
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* <code>propertyPaths</code> parameter as list of paths all starting at the
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* root bean.
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* <p>
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* You can use wildcards <code>*</code> {@link LOAD_2ONE_2MANY_WILDCARD}
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* and <code>$</code> {@link LOAD_2ONE_WILDCARD} for initializing
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* all *ToOne and all *ToMany relations of a bean.
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* NOTE: A wildcard subsequently terminates its property path.
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* <p>
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* <b>Example:</b> Assuming <code>cdmEntity</code> is a {@link Taxon}
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* instance the following <code>propertyPaths</code> can be used for
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* initializing bean properties of this instance. It is possible to
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* initialized nested properties of properties with unlimited depth.
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* <ul>
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* <li><code>name</code>: initializes {@link Taxon#getName()}</li>
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* <li><code>name.rank</code>: initializes {@link Taxon#getName()}.{@link TaxonNameBase#getRank() getRank()}</li>
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* <li><code>name.$</code>: initializes all *ToOne relations of the {@link Taxon#getName()}</li>
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* </ul>
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*
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* @param bean
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* @param propertyPaths
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* a List of property names
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*/
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public void initialize(Object bean, List<String> propertyPaths);
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/**
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* Initializes the entities given in the bean list according to the given
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* <code>propertyPaths</code>.
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*
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* @param beanList
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* @param propertyPaths
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* @return
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*/
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public <C extends Collection<?>> C initializeAll(C list, List<String> propertyPaths);
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/**
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* Initialize the the proxy, unwrap the target object and return it.
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*
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* @param proxy
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* the proxy to initialize may wrap a single bean or a collection
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* @return the unwrapped target object
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*/
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public Object initializeInstance(Object proxy);
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/*TODO implement:
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public void loadBy(UUID uuid);
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public void loadFullyByUuid(UUID uuid);*/
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}
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