Java tutorial
/* * Hibernate, Relational Persistence for Idiomatic Java * * Copyright (c) 2008, Red Hat Middleware LLC or third-party contributors as * indicated by the @author tags or express copyright attribution * statements applied by the authors. All third-party contributions are * distributed under license by Red Hat Middleware LLC. * * This copyrighted material is made available to anyone wishing to use, modify, * copy, or redistribute it subject to the terms and conditions of the GNU * Lesser General Public License, as published by the Free Software Foundation. * * This program 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. * * You should have received a copy of the GNU Lesser General Public License * along with this distribution; if not, write to: * Free Software Foundation, Inc. * 51 Franklin Street, Fifth Floor * Boston, MA 02110-1301 USA * */ package pe.com.bbva.pic.util; import java.io.Serializable; import org.hibernate.Criteria; import org.hibernate.FetchMode; import org.hibernate.HibernateException; import org.hibernate.LockMode; import org.hibernate.Session; import org.hibernate.criterion.CriteriaSpecification; import org.hibernate.criterion.Criterion; import org.hibernate.criterion.Order; import org.hibernate.criterion.Projection; import org.hibernate.engine.spi.SessionImplementor; import org.hibernate.internal.CriteriaImpl; import org.hibernate.sql.JoinType; import org.hibernate.transform.ResultTransformer; /** * Some applications need to create criteria queries in "detached * mode", where the Hibernate session is not available. This class * may be instantiated anywhere, and then a <literal>Criteria</literal> * may be obtained by passing a session to * <literal>getExecutableCriteria()</literal>. All methods have the * same semantics and behavior as the corresponding methods of the * <literal>Criteria</literal> interface. * * @see org.hibernate.Criteria * @author Gavin King */ public class Busqueda implements CriteriaSpecification, Serializable { private static final long serialVersionUID = 758036182726890300L; private final CriteriaImpl criteriaImpl; private final Criteria criteria; private int maxResults = -1; private int firstResult = 0; private boolean cacheable = false; protected Busqueda(String entityName) { criteriaImpl = new CriteriaImpl(entityName, null); criteria = criteriaImpl; } protected Busqueda(String entityName, String alias) { criteriaImpl = new CriteriaImpl(entityName, alias, null); criteria = criteriaImpl; } protected Busqueda(CriteriaImpl criteriaImpl, Criteria criteria) { this.criteriaImpl = criteriaImpl; this.criteria = criteria; } public int getMaxResults() { return maxResults; } public void setMaxResults(int maxResults) { this.maxResults = maxResults; } public int getFirstResult() { return firstResult; } public void setFirstResult(int firstResult) { this.firstResult = firstResult; } public boolean getCacheable() { return cacheable; } public void setCacheable(boolean cacheable) { this.cacheable = cacheable; } /** * Get an executable instance of <literal>Criteria</literal>, * to actually run the query. */ public Criteria getExecutableCriteria(Session session) { criteriaImpl.setSession((SessionImplementor) session); return criteriaImpl; } public static Busqueda forEntityName(String entityName) { return new Busqueda(entityName); } public static Busqueda forEntityName(String entityName, String alias) { return new Busqueda(entityName, alias); } @SuppressWarnings("rawtypes") public static Busqueda forClass(Class clazz) { return new Busqueda(clazz.getName()); } @SuppressWarnings("rawtypes") public static Busqueda forClass(Class clazz, String alias) { return new Busqueda(clazz.getName(), alias); } public Busqueda add(Criterion criterion) { criteria.add(criterion); return this; } private java.util.List<Order> orders = new java.util.ArrayList<Order>(); public Busqueda addOrder(Order order) { orders.add(order); criteria.addOrder(order); return this; } public Busqueda createAlias(String associationPath, String alias) throws HibernateException { criteria.createAlias(associationPath, alias); return this; } public Busqueda createCriteria(String associationPath, String alias) throws HibernateException { return new Busqueda(criteriaImpl, criteria.createCriteria(associationPath, alias)); } public Busqueda createCriteria(String associationPath) throws HibernateException { return new Busqueda(criteriaImpl, criteria.createCriteria(associationPath)); } public String getAlias() { return criteria.getAlias(); } public Busqueda setFetchMode(String associationPath, FetchMode mode) throws HibernateException { criteria.setFetchMode(associationPath, mode); return this; } public Busqueda setProjection(Projection projection) { criteria.setProjection(projection); return this; } public Busqueda setResultTransformer(ResultTransformer resultTransformer) { criteria.setResultTransformer(resultTransformer); return this; } public String toString() { StringBuilder texto = new StringBuilder(this.comentario + "\n"); texto.append("Busqueda = { " + criteria.toString() + " } "); for (Order o : orders) { texto.append(" [" + o.toString() + "]"); } return texto.toString().replace("pe.com.bbva.pic.dominio.", "#"); } CriteriaImpl getCriteriaImpl() { return criteriaImpl; } public Busqueda createAlias(String associationPath, String alias, JoinType joinType) throws HibernateException { criteria.createAlias(associationPath, alias, joinType); return this; } public Busqueda createAlias(String associationPath, String alias, JoinType joinType, Criterion withClause) throws HibernateException { criteria.createAlias(associationPath, alias, joinType, withClause); return this; } public Busqueda createCriteria(String associationPath, JoinType joinType) throws HibernateException { return new Busqueda(criteriaImpl, criteria.createCriteria(associationPath, joinType)); } public Busqueda createCriteria(String associationPath, String alias, JoinType joinType) throws HibernateException { return new Busqueda(criteriaImpl, criteria.createCriteria(associationPath, alias, joinType)); } public Busqueda createCriteria(String associationPath, String alias, JoinType joinType, Criterion withClause) throws HibernateException { return new Busqueda(criteriaImpl, criteria.createCriteria(associationPath, alias, joinType, withClause)); } /** * @deprecated use {@link #createAlias(String, String, JoinType)} */ @Deprecated public Busqueda createAlias(String associationPath, String alias, int joinType) throws HibernateException { return createAlias(associationPath, alias, JoinType.parse(joinType)); } /** * @deprecated use {@link #createAlias(String, String, JoinType, Criterion)} */ @Deprecated public Busqueda createAlias(String associationPath, String alias, int joinType, Criterion withClause) throws HibernateException { return createAlias(associationPath, alias, JoinType.parse(joinType), withClause); } /** * @deprecated use {@link #createCriteria(String, JoinType)} */ @Deprecated public Busqueda createCriteria(String associationPath, int joinType) throws HibernateException { return createCriteria(associationPath, JoinType.parse(joinType)); } /** * @deprecated use {@link #createCriteria(String, String, JoinType)} */ @Deprecated public Busqueda createCriteria(String associationPath, String alias, int joinType) throws HibernateException { return createCriteria(associationPath, alias, JoinType.parse(joinType)); } /** * @deprecated use {@link #createCriteria(String, String, JoinType, Criterion)} */ @Deprecated public Busqueda createCriteria(String associationPath, String alias, int joinType, Criterion withClause) throws HibernateException { return createCriteria(associationPath, alias, JoinType.parse(joinType), withClause); } private String comentario = "Sin comentario"; public Busqueda setComment(String comment) { comentario = comment; criteria.setComment(comment); return this; } public Busqueda setLockMode(LockMode lockMode) { criteria.setLockMode(lockMode); return this; } public Busqueda setLockMode(String alias, LockMode lockMode) { criteria.setLockMode(alias, lockMode); return this; } public Criteria getCriteria() { return criteria; } }