Java tutorial
/** * Copyright (c) 2000-2012 Liferay, Inc. All rights reserved. * * This library is free software; you can redistribute it and/or modify it under * the terms of the GNU Lesser General Public License as published by the Free * Software Foundation; either version 2.1 of the License, or (at your option) * any later version. * * This library is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more * details. */ package com.addfacultypreferences.slayer.service.persistence; import com.addfacultypreferences.slayer.NoSuchBookException; import com.addfacultypreferences.slayer.model.LNSBook; import com.addfacultypreferences.slayer.model.impl.LNSBookImpl; import com.addfacultypreferences.slayer.model.impl.LNSBookModelImpl; import com.liferay.portal.NoSuchModelException; import com.liferay.portal.kernel.bean.BeanReference; import com.liferay.portal.kernel.cache.CacheRegistryUtil; import com.liferay.portal.kernel.dao.orm.EntityCacheUtil; import com.liferay.portal.kernel.dao.orm.FinderCacheUtil; import com.liferay.portal.kernel.dao.orm.FinderPath; import com.liferay.portal.kernel.dao.orm.Query; import com.liferay.portal.kernel.dao.orm.QueryUtil; import com.liferay.portal.kernel.dao.orm.Session; import com.liferay.portal.kernel.exception.SystemException; import com.liferay.portal.kernel.log.Log; import com.liferay.portal.kernel.log.LogFactoryUtil; import com.liferay.portal.kernel.util.GetterUtil; import com.liferay.portal.kernel.util.InstanceFactory; import com.liferay.portal.kernel.util.OrderByComparator; import com.liferay.portal.kernel.util.PropsKeys; import com.liferay.portal.kernel.util.PropsUtil; import com.liferay.portal.kernel.util.StringBundler; import com.liferay.portal.kernel.util.StringUtil; import com.liferay.portal.model.CacheModel; import com.liferay.portal.model.ModelListener; import com.liferay.portal.service.persistence.BatchSessionUtil; import com.liferay.portal.service.persistence.ResourcePersistence; import com.liferay.portal.service.persistence.UserPersistence; import com.liferay.portal.service.persistence.impl.BasePersistenceImpl; import java.io.Serializable; import java.util.ArrayList; import java.util.Collections; import java.util.List; /** * The persistence implementation for the l n s book service. * * <p> * Caching information and settings can be found in <code>portal.properties</code> * </p> * * @author Eshwari * @see LNSBookPersistence * @see LNSBookUtil * @generated */ public class LNSBookPersistenceImpl extends BasePersistenceImpl<LNSBook> implements LNSBookPersistence { /* * NOTE FOR DEVELOPERS: * * Never modify or reference this class directly. Always use {@link LNSBookUtil} to access the l n s book persistence. Modify <code>service.xml</code> and rerun ServiceBuilder to regenerate this class. */ public static final String FINDER_CLASS_NAME_ENTITY = LNSBookImpl.class.getName(); public static final String FINDER_CLASS_NAME_LIST_WITH_PAGINATION = FINDER_CLASS_NAME_ENTITY + ".List1"; public static final String FINDER_CLASS_NAME_LIST_WITHOUT_PAGINATION = FINDER_CLASS_NAME_ENTITY + ".List2"; public static final FinderPath FINDER_PATH_WITH_PAGINATION_FIND_ALL = new FinderPath( LNSBookModelImpl.ENTITY_CACHE_ENABLED, LNSBookModelImpl.FINDER_CACHE_ENABLED, LNSBookImpl.class, FINDER_CLASS_NAME_LIST_WITH_PAGINATION, "findAll", new String[0]); public static final FinderPath FINDER_PATH_WITHOUT_PAGINATION_FIND_ALL = new FinderPath( LNSBookModelImpl.ENTITY_CACHE_ENABLED, LNSBookModelImpl.FINDER_CACHE_ENABLED, LNSBookImpl.class, FINDER_CLASS_NAME_LIST_WITHOUT_PAGINATION, "findAll", new String[0]); public static final FinderPath FINDER_PATH_COUNT_ALL = new FinderPath(LNSBookModelImpl.ENTITY_CACHE_ENABLED, LNSBookModelImpl.FINDER_CACHE_ENABLED, Long.class, FINDER_CLASS_NAME_LIST_WITHOUT_PAGINATION, "countAll", new String[0]); /** * Caches the l n s book in the entity cache if it is enabled. * * @param lnsBook the l n s book */ public void cacheResult(LNSBook lnsBook) { EntityCacheUtil.putResult(LNSBookModelImpl.ENTITY_CACHE_ENABLED, LNSBookImpl.class, lnsBook.getPrimaryKey(), lnsBook); lnsBook.resetOriginalValues(); } /** * Caches the l n s books in the entity cache if it is enabled. * * @param lnsBooks the l n s books */ public void cacheResult(List<LNSBook> lnsBooks) { for (LNSBook lnsBook : lnsBooks) { if (EntityCacheUtil.getResult(LNSBookModelImpl.ENTITY_CACHE_ENABLED, LNSBookImpl.class, lnsBook.getPrimaryKey()) == null) { cacheResult(lnsBook); } else { lnsBook.resetOriginalValues(); } } } /** * Clears the cache for all l n s books. * * <p> * The {@link com.liferay.portal.kernel.dao.orm.EntityCache} and {@link com.liferay.portal.kernel.dao.orm.FinderCache} are both cleared by this method. * </p> */ @Override public void clearCache() { if (_HIBERNATE_CACHE_USE_SECOND_LEVEL_CACHE) { CacheRegistryUtil.clear(LNSBookImpl.class.getName()); } EntityCacheUtil.clearCache(LNSBookImpl.class.getName()); FinderCacheUtil.clearCache(FINDER_CLASS_NAME_ENTITY); FinderCacheUtil.clearCache(FINDER_CLASS_NAME_LIST_WITH_PAGINATION); FinderCacheUtil.clearCache(FINDER_CLASS_NAME_LIST_WITHOUT_PAGINATION); } /** * Clears the cache for the l n s book. * * <p> * The {@link com.liferay.portal.kernel.dao.orm.EntityCache} and {@link com.liferay.portal.kernel.dao.orm.FinderCache} are both cleared by this method. * </p> */ @Override public void clearCache(LNSBook lnsBook) { EntityCacheUtil.removeResult(LNSBookModelImpl.ENTITY_CACHE_ENABLED, LNSBookImpl.class, lnsBook.getPrimaryKey()); FinderCacheUtil.clearCache(FINDER_CLASS_NAME_LIST_WITH_PAGINATION); FinderCacheUtil.clearCache(FINDER_CLASS_NAME_LIST_WITHOUT_PAGINATION); } @Override public void clearCache(List<LNSBook> lnsBooks) { FinderCacheUtil.clearCache(FINDER_CLASS_NAME_LIST_WITH_PAGINATION); FinderCacheUtil.clearCache(FINDER_CLASS_NAME_LIST_WITHOUT_PAGINATION); for (LNSBook lnsBook : lnsBooks) { EntityCacheUtil.removeResult(LNSBookModelImpl.ENTITY_CACHE_ENABLED, LNSBookImpl.class, lnsBook.getPrimaryKey()); } } /** * Creates a new l n s book with the primary key. Does not add the l n s book to the database. * * @param nameId the primary key for the new l n s book * @return the new l n s book */ public LNSBook create(long nameId) { LNSBook lnsBook = new LNSBookImpl(); lnsBook.setNew(true); lnsBook.setPrimaryKey(nameId); return lnsBook; } /** * Removes the l n s book with the primary key from the database. Also notifies the appropriate model listeners. * * @param nameId the primary key of the l n s book * @return the l n s book that was removed * @throws com.addfacultypreferences.slayer.NoSuchBookException if a l n s book with the primary key could not be found * @throws SystemException if a system exception occurred */ public LNSBook remove(long nameId) throws NoSuchBookException, SystemException { return remove(Long.valueOf(nameId)); } /** * Removes the l n s book with the primary key from the database. Also notifies the appropriate model listeners. * * @param primaryKey the primary key of the l n s book * @return the l n s book that was removed * @throws com.addfacultypreferences.slayer.NoSuchBookException if a l n s book with the primary key could not be found * @throws SystemException if a system exception occurred */ @Override public LNSBook remove(Serializable primaryKey) throws NoSuchBookException, SystemException { Session session = null; try { session = openSession(); LNSBook lnsBook = (LNSBook) session.get(LNSBookImpl.class, primaryKey); if (lnsBook == null) { if (_log.isWarnEnabled()) { _log.warn(_NO_SUCH_ENTITY_WITH_PRIMARY_KEY + primaryKey); } throw new NoSuchBookException(_NO_SUCH_ENTITY_WITH_PRIMARY_KEY + primaryKey); } return remove(lnsBook); } catch (NoSuchBookException nsee) { throw nsee; } catch (Exception e) { throw processException(e); } finally { closeSession(session); } } @Override protected LNSBook removeImpl(LNSBook lnsBook) throws SystemException { lnsBook = toUnwrappedModel(lnsBook); Session session = null; try { session = openSession(); BatchSessionUtil.delete(session, lnsBook); } catch (Exception e) { throw processException(e); } finally { closeSession(session); } clearCache(lnsBook); return lnsBook; } @Override public LNSBook updateImpl(com.addfacultypreferences.slayer.model.LNSBook lnsBook, boolean merge) throws SystemException { lnsBook = toUnwrappedModel(lnsBook); boolean isNew = lnsBook.isNew(); Session session = null; try { session = openSession(); BatchSessionUtil.update(session, lnsBook, merge); lnsBook.setNew(false); } catch (Exception e) { throw processException(e); } finally { closeSession(session); } FinderCacheUtil.clearCache(FINDER_CLASS_NAME_LIST_WITH_PAGINATION); if (isNew) { FinderCacheUtil.clearCache(FINDER_CLASS_NAME_LIST_WITHOUT_PAGINATION); } EntityCacheUtil.putResult(LNSBookModelImpl.ENTITY_CACHE_ENABLED, LNSBookImpl.class, lnsBook.getPrimaryKey(), lnsBook); return lnsBook; } protected LNSBook toUnwrappedModel(LNSBook lnsBook) { if (lnsBook instanceof LNSBookImpl) { return lnsBook; } LNSBookImpl lnsBookImpl = new LNSBookImpl(); lnsBookImpl.setNew(lnsBook.isNew()); lnsBookImpl.setPrimaryKey(lnsBook.getPrimaryKey()); lnsBookImpl.setNameId(lnsBook.getNameId()); lnsBookImpl.setName(lnsBook.getName()); lnsBookImpl.setEmail(lnsBook.getEmail()); lnsBookImpl.setNumber(lnsBook.getNumber()); lnsBookImpl.setDateAdded(lnsBook.getDateAdded()); return lnsBookImpl; } /** * Returns the l n s book with the primary key or throws a {@link com.liferay.portal.NoSuchModelException} if it could not be found. * * @param primaryKey the primary key of the l n s book * @return the l n s book * @throws com.liferay.portal.NoSuchModelException if a l n s book with the primary key could not be found * @throws SystemException if a system exception occurred */ @Override public LNSBook findByPrimaryKey(Serializable primaryKey) throws NoSuchModelException, SystemException { return findByPrimaryKey(((Long) primaryKey).longValue()); } /** * Returns the l n s book with the primary key or throws a {@link com.addfacultypreferences.slayer.NoSuchBookException} if it could not be found. * * @param nameId the primary key of the l n s book * @return the l n s book * @throws com.addfacultypreferences.slayer.NoSuchBookException if a l n s book with the primary key could not be found * @throws SystemException if a system exception occurred */ public LNSBook findByPrimaryKey(long nameId) throws NoSuchBookException, SystemException { LNSBook lnsBook = fetchByPrimaryKey(nameId); if (lnsBook == null) { if (_log.isWarnEnabled()) { _log.warn(_NO_SUCH_ENTITY_WITH_PRIMARY_KEY + nameId); } throw new NoSuchBookException(_NO_SUCH_ENTITY_WITH_PRIMARY_KEY + nameId); } return lnsBook; } /** * Returns the l n s book with the primary key or returns <code>null</code> if it could not be found. * * @param primaryKey the primary key of the l n s book * @return the l n s book, or <code>null</code> if a l n s book with the primary key could not be found * @throws SystemException if a system exception occurred */ @Override public LNSBook fetchByPrimaryKey(Serializable primaryKey) throws SystemException { return fetchByPrimaryKey(((Long) primaryKey).longValue()); } /** * Returns the l n s book with the primary key or returns <code>null</code> if it could not be found. * * @param nameId the primary key of the l n s book * @return the l n s book, or <code>null</code> if a l n s book with the primary key could not be found * @throws SystemException if a system exception occurred */ public LNSBook fetchByPrimaryKey(long nameId) throws SystemException { LNSBook lnsBook = (LNSBook) EntityCacheUtil.getResult(LNSBookModelImpl.ENTITY_CACHE_ENABLED, LNSBookImpl.class, nameId); if (lnsBook == _nullLNSBook) { return null; } if (lnsBook == null) { Session session = null; boolean hasException = false; try { session = openSession(); lnsBook = (LNSBook) session.get(LNSBookImpl.class, Long.valueOf(nameId)); } catch (Exception e) { hasException = true; throw processException(e); } finally { if (lnsBook != null) { cacheResult(lnsBook); } else if (!hasException) { EntityCacheUtil.putResult(LNSBookModelImpl.ENTITY_CACHE_ENABLED, LNSBookImpl.class, nameId, _nullLNSBook); } closeSession(session); } } return lnsBook; } /** * Returns all the l n s books. * * @return the l n s books * @throws SystemException if a system exception occurred */ public List<LNSBook> findAll() throws SystemException { return findAll(QueryUtil.ALL_POS, QueryUtil.ALL_POS, null); } /** * Returns a range of all the l n s books. * * <p> * Useful when paginating results. Returns a maximum of <code>end - start</code> instances. <code>start</code> and <code>end</code> are not primary keys, they are indexes in the result set. Thus, <code>0</code> refers to the first result in the set. Setting both <code>start</code> and <code>end</code> to {@link com.liferay.portal.kernel.dao.orm.QueryUtil#ALL_POS} will return the full result set. * </p> * * @param start the lower bound of the range of l n s books * @param end the upper bound of the range of l n s books (not inclusive) * @return the range of l n s books * @throws SystemException if a system exception occurred */ public List<LNSBook> findAll(int start, int end) throws SystemException { return findAll(start, end, null); } /** * Returns an ordered range of all the l n s books. * * <p> * Useful when paginating results. Returns a maximum of <code>end - start</code> instances. <code>start</code> and <code>end</code> are not primary keys, they are indexes in the result set. Thus, <code>0</code> refers to the first result in the set. Setting both <code>start</code> and <code>end</code> to {@link com.liferay.portal.kernel.dao.orm.QueryUtil#ALL_POS} will return the full result set. * </p> * * @param start the lower bound of the range of l n s books * @param end the upper bound of the range of l n s books (not inclusive) * @param orderByComparator the comparator to order the results by (optionally <code>null</code>) * @return the ordered range of l n s books * @throws SystemException if a system exception occurred */ public List<LNSBook> findAll(int start, int end, OrderByComparator orderByComparator) throws SystemException { FinderPath finderPath = null; Object[] finderArgs = new Object[] { start, end, orderByComparator }; if ((start == QueryUtil.ALL_POS) && (end == QueryUtil.ALL_POS) && (orderByComparator == null)) { finderPath = FINDER_PATH_WITHOUT_PAGINATION_FIND_ALL; finderArgs = FINDER_ARGS_EMPTY; } else { finderPath = FINDER_PATH_WITH_PAGINATION_FIND_ALL; finderArgs = new Object[] { start, end, orderByComparator }; } List<LNSBook> list = (List<LNSBook>) FinderCacheUtil.getResult(finderPath, finderArgs, this); if (list == null) { StringBundler query = null; String sql = null; if (orderByComparator != null) { query = new StringBundler(2 + (orderByComparator.getOrderByFields().length * 3)); query.append(_SQL_SELECT_LNSBOOK); appendOrderByComparator(query, _ORDER_BY_ENTITY_ALIAS, orderByComparator); sql = query.toString(); } else { sql = _SQL_SELECT_LNSBOOK; } Session session = null; try { session = openSession(); Query q = session.createQuery(sql); if (orderByComparator == null) { list = (List<LNSBook>) QueryUtil.list(q, getDialect(), start, end, false); Collections.sort(list); } else { list = (List<LNSBook>) QueryUtil.list(q, getDialect(), start, end); } } catch (Exception e) { throw processException(e); } finally { if (list == null) { FinderCacheUtil.removeResult(finderPath, finderArgs); } else { cacheResult(list); FinderCacheUtil.putResult(finderPath, finderArgs, list); } closeSession(session); } } return list; } /** * Removes all the l n s books from the database. * * @throws SystemException if a system exception occurred */ public void removeAll() throws SystemException { for (LNSBook lnsBook : findAll()) { remove(lnsBook); } } /** * Returns the number of l n s books. * * @return the number of l n s books * @throws SystemException if a system exception occurred */ public int countAll() throws SystemException { Long count = (Long) FinderCacheUtil.getResult(FINDER_PATH_COUNT_ALL, FINDER_ARGS_EMPTY, this); if (count == null) { Session session = null; try { session = openSession(); Query q = session.createQuery(_SQL_COUNT_LNSBOOK); count = (Long) q.uniqueResult(); } catch (Exception e) { throw processException(e); } finally { if (count == null) { count = Long.valueOf(0); } FinderCacheUtil.putResult(FINDER_PATH_COUNT_ALL, FINDER_ARGS_EMPTY, count); closeSession(session); } } return count.intValue(); } /** * Initializes the l n s book persistence. */ public void afterPropertiesSet() { String[] listenerClassNames = StringUtil.split(GetterUtil.getString(com.liferay.util.service.ServiceProps .get("value.object.listener.com.addfacultypreferences.slayer.model.LNSBook"))); if (listenerClassNames.length > 0) { try { List<ModelListener<LNSBook>> listenersList = new ArrayList<ModelListener<LNSBook>>(); for (String listenerClassName : listenerClassNames) { listenersList.add((ModelListener<LNSBook>) InstanceFactory.newInstance(listenerClassName)); } listeners = listenersList.toArray(new ModelListener[listenersList.size()]); } catch (Exception e) { _log.error(e); } } } public void destroy() { EntityCacheUtil.removeCache(LNSBookImpl.class.getName()); FinderCacheUtil.removeCache(FINDER_CLASS_NAME_ENTITY); FinderCacheUtil.removeCache(FINDER_CLASS_NAME_LIST_WITHOUT_PAGINATION); } @BeanReference(type = LNSBookPersistence.class) protected LNSBookPersistence lnsBookPersistence; @BeanReference(type = ResourcePersistence.class) protected ResourcePersistence resourcePersistence; @BeanReference(type = UserPersistence.class) protected UserPersistence userPersistence; private static final String _SQL_SELECT_LNSBOOK = "SELECT lnsBook FROM LNSBook lnsBook"; private static final String _SQL_COUNT_LNSBOOK = "SELECT COUNT(lnsBook) FROM LNSBook lnsBook"; private static final String _ORDER_BY_ENTITY_ALIAS = "lnsBook."; private static final String _NO_SUCH_ENTITY_WITH_PRIMARY_KEY = "No LNSBook exists with the primary key "; private static final boolean _HIBERNATE_CACHE_USE_SECOND_LEVEL_CACHE = GetterUtil .getBoolean(PropsUtil.get(PropsKeys.HIBERNATE_CACHE_USE_SECOND_LEVEL_CACHE)); private static Log _log = LogFactoryUtil.getLog(LNSBookPersistenceImpl.class); private static LNSBook _nullLNSBook = new LNSBookImpl() { @Override public Object clone() { return this; } @Override public CacheModel<LNSBook> toCacheModel() { return _nullLNSBookCacheModel; } }; private static CacheModel<LNSBook> _nullLNSBookCacheModel = new CacheModel<LNSBook>() { public LNSBook toEntityModel() { return _nullLNSBook; } }; }