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// $Id$
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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.ArrayList;
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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.apache.log4j.Logger;
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import org.hibernate.LockMode;
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import org.hibernate.Session;
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import org.springframework.context.ApplicationContext;
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import org.springframework.context.ApplicationContextAware;
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import org.springframework.transaction.annotation.Transactional;
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import eu.etaxonomy.cdm.api.service.pager.Pager;
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import eu.etaxonomy.cdm.api.service.pager.impl.DefaultPagerImpl;
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import eu.etaxonomy.cdm.model.common.CdmBase;
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import eu.etaxonomy.cdm.persistence.dao.common.ICdmEntityDao;
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import eu.etaxonomy.cdm.persistence.query.Grouping;
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import eu.etaxonomy.cdm.persistence.query.OrderHint;
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public abstract class ServiceBase<T extends CdmBase, DAO extends ICdmEntityDao<T>> implements IService<T>, ApplicationContextAware {
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@SuppressWarnings("unused")
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private static final Logger logger = Logger.getLogger(ServiceBase.class);
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//flush after saving this number of objects
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int flushAfterNo = 2000;
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protected ApplicationContext appContext;
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protected DAO dao;
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@Transactional(readOnly = true)
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public void lock(T t, LockMode lockMode) {
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dao.lock(t, lockMode);
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}
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@Transactional(readOnly = true)
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public void refresh(T t, LockMode lockMode, List<String> propertyPaths) {
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dao.refresh(t, lockMode, propertyPaths);
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}
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@Transactional(readOnly = false)
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public void clear() {
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dao.clear();
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}
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@Transactional(readOnly = true)
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public int count(Class<? extends T> clazz) {
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return dao.count(clazz);
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}
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@Transactional(readOnly = false)
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public UUID delete(T persistentObject) {
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return dao.delete(persistentObject);
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}
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@Transactional(readOnly = true)
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public boolean exists(UUID uuid) {
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return dao.exists(uuid);
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}
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@Transactional(readOnly = true)
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public List<T> find(Set<UUID> uuidSet) {
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return dao.list(uuidSet, null, null, null, null);
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}
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@Transactional(readOnly = true)
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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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return dao.listByIds(idSet, null, null, null, null);
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}
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@Transactional(readOnly = true)
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public T find(UUID uuid) {
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return dao.findByUuid(uuid);
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}
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@Transactional(readOnly = true)
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public T find(int id) {
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return dao.findById(id);
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}
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@Transactional(readOnly = true)
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public Session getSession() {
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return dao.getSession();
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}
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@Transactional(readOnly = true)
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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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return dao.group(clazz, limit, start, groups, propertyPaths);
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}
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@Transactional(readOnly = true)
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public List<T> list(Class<? extends T> type, Integer limit, Integer start, List<OrderHint> orderHints, List<String> propertyPaths){
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return dao.list(type,limit, start, orderHints,propertyPaths);
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}
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@Transactional(readOnly = true)
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public T load(UUID uuid) {
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return dao.load(uuid);
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}
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@Transactional(readOnly = true)
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public T load(UUID uuid, List<String> propertyPaths){
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return dao.load(uuid, propertyPaths);
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}
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@Transactional(readOnly = false)
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public T merge(T newInstance) {
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return dao.merge(newInstance);
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}
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@Transactional(readOnly = true)
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public Pager<T> page(Class<? extends T> type, Integer pageSize, Integer pageNumber, List<OrderHint> orderHints, List<String> propertyPaths){
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Integer numberOfResults = dao.count(type);
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List<T> results = new ArrayList<T>();
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pageNumber = pageNumber == null ? 0 : pageNumber;
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if(numberOfResults > 0) { // no point checking again //TODO use AbstractPagerImpl.hasResultsInRange(numberOfResults, pageNumber, pageSize)
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Integer start = pageSize == null ? 0 : pageSize * pageNumber;
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results = dao.list(type, pageSize, start, orderHints,propertyPaths);
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}
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return new DefaultPagerImpl<T>(pageNumber, numberOfResults, pageSize, results);
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}
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@Transactional(readOnly = true)
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public UUID refresh(T persistentObject) {
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return dao.refresh(persistentObject);
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}
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/**
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* FIXME Candidate for harmonization
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* is this method used, and if so, should it be exposed in the service layer?
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* it seems a bit incongruous that we use an ORM to hide the fact that there is a
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* database, then expose a method that talks about "rows" . . .
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*/
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@Transactional(readOnly = true)
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public List<T> rows(String tableName, int limit, int start) {
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return dao.rows(tableName, limit, start);
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}
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@Transactional(readOnly = false)
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public Map<UUID, T> save(Collection<T> newInstances) {
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return dao.saveAll(newInstances);
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}
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@Transactional(readOnly = false)
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public UUID save(T newInstance) {
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return dao.save(newInstance);
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}
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@Transactional(readOnly = false)
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public UUID saveOrUpdate(T transientObject) {
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return dao.saveOrUpdate(transientObject);
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}
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@Transactional(readOnly = false)
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public Map<UUID, T> saveOrUpdate(Collection<T> transientInstances) {
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return dao.saveOrUpdateAll(transientInstances);
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}
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/* (non-Javadoc)
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* @see eu.etaxonomy.cdm.api.service.Iyyy#setApplicationContext(org.springframework.context.ApplicationContext)
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*/
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public void setApplicationContext(ApplicationContext appContext){
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this.appContext = appContext;
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}
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protected abstract void setDao(DAO dao);
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@Transactional(readOnly = false)
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public UUID update(T transientObject) {
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return dao.update(transientObject);
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}
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@Transactional(readOnly = true)
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public List<T> list(T example, Set<String> includeProperties, Integer limit, Integer start, List<OrderHint> orderHints, List<String> propertyPaths) {
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return dao.list(example, includeProperties, limit, start, orderHints, propertyPaths);
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}
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}
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