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/*
* 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 org.hibernate.criterion;
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.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 Criteria
* may be obtained by passing a session to
* getExecutableCriteria(). All methods have the
* same semantics and behavior as the corresponding methods of the
* Criteria interface.
*
* @see org.hibernate.Criteria
* @author Gavin King
*/
public class DetachedCriteria implements CriteriaSpecification, Serializable {
private final CriteriaImpl impl;
private final Criteria criteria;
protected DetachedCriteria(String entityName) {
impl = new CriteriaImpl(entityName, null);
criteria = impl;
}
protected DetachedCriteria(String entityName, String alias) {
impl = new CriteriaImpl(entityName, alias, null);
criteria = impl;
}
protected DetachedCriteria(CriteriaImpl impl, Criteria criteria) {
this.impl = impl;
this.criteria = criteria;
}
/**
* Get an executable instance of Criteria,
* to actually run the query.
*/
public Criteria getExecutableCriteria(Session session) {
impl.setSession( ( SessionImplementor ) session );
return impl;
}
public static DetachedCriteria forEntityName(String entityName) {
return new DetachedCriteria(entityName);
}
public static DetachedCriteria forEntityName(String entityName, String alias) {
return new DetachedCriteria(entityName, alias);
}
public static DetachedCriteria forClass(Class clazz) {
return new DetachedCriteria( clazz.getName() );
}
public static DetachedCriteria forClass(Class clazz, String alias) {
return new DetachedCriteria( clazz.getName() , alias );
}
public DetachedCriteria add(Criterion criterion) {
criteria.add(criterion);
return this;
}
public DetachedCriteria addOrder(Order order) {
criteria.addOrder(order);
return this;
}
public DetachedCriteria createAlias(String associationPath, String alias)
throws HibernateException {
criteria.createAlias(associationPath, alias);
return this;
}
public DetachedCriteria createCriteria(String associationPath, String alias)
throws HibernateException {
return new DetachedCriteria( impl, criteria.createCriteria(associationPath, alias) );
}
public DetachedCriteria createCriteria(String associationPath)
throws HibernateException {
return new DetachedCriteria( impl, criteria.createCriteria(associationPath) );
}
public String getAlias() {
return criteria.getAlias();
}
public DetachedCriteria setFetchMode(String associationPath, FetchMode mode)
throws HibernateException {
criteria.setFetchMode(associationPath, mode);
return this;
}
public DetachedCriteria setProjection(Projection projection) {
criteria.setProjection(projection);
return this;
}
public DetachedCriteria setResultTransformer(ResultTransformer resultTransformer) {
criteria.setResultTransformer(resultTransformer);
return this;
}
public String toString() {
return "DetachableCriteria(" + criteria.toString() + ')';
}
CriteriaImpl getCriteriaImpl() {
return impl;
}
public DetachedCriteria createAlias(String associationPath, String alias, JoinType joinType) throws HibernateException {
criteria.createAlias(associationPath, alias, joinType);
return this;
}
public DetachedCriteria createAlias(String associationPath, String alias, JoinType joinType, Criterion withClause) throws HibernateException {
criteria.createAlias(associationPath, alias, joinType, withClause);
return this;
}
public DetachedCriteria createCriteria(String associationPath, JoinType joinType) throws HibernateException {
return new DetachedCriteria(impl, criteria.createCriteria(associationPath, joinType));
}
public DetachedCriteria createCriteria(String associationPath, String alias, JoinType joinType) throws HibernateException {
return new DetachedCriteria(impl, criteria.createCriteria(associationPath, alias, joinType));
}
public DetachedCriteria createCriteria(String associationPath, String alias, JoinType joinType, Criterion withClause) throws HibernateException {
return new DetachedCriteria(impl, criteria.createCriteria(associationPath, alias, joinType, withClause));
}
/**
* @deprecated use {@link #createAlias(String, String, JoinType)}
*/
@Deprecated
public DetachedCriteria 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 DetachedCriteria 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 DetachedCriteria createCriteria(String associationPath, int joinType) throws HibernateException {
return createCriteria( associationPath, JoinType.parse( joinType ) );
}
/**
* @deprecated use {@link #createCriteria(String, String, JoinType)}
*/
@Deprecated
public DetachedCriteria 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 DetachedCriteria createCriteria(String associationPath, String alias, int joinType, Criterion withClause) throws HibernateException {
return createCriteria( associationPath, alias, JoinType.parse( joinType ), withClause );
}
public DetachedCriteria setComment(String comment) {
criteria.setComment(comment);
return this;
}
public DetachedCriteria setLockMode(LockMode lockMode) {
criteria.setLockMode(lockMode);
return this;
}
public DetachedCriteria setLockMode(String alias, LockMode lockMode) {
criteria.setLockMode(alias, lockMode);
return this;
}
}
