sqlcriterion.java

hibernate-distribution-3.3.1.GA-dist.zip源码

/*
 * 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 org.hibernate.Criteria;
import org.hibernate.EntityMode;
import org.hibernate.HibernateException;
import org.hibernate.engine.TypedValue;
import org.hibernate.type.Type;
import org.hibernate.util.StringHelper;

/**
 * A SQL fragment. The string {alias} will be replaced by the
 * alias of the root entity.
 */
public class SQLCriterion implements Criterion {

	private final String sql;
	private final TypedValue[] typedValues;

	public String toSqlString(
		Criteria criteria,
		CriteriaQuery criteriaQuery)
	throws HibernateException {
		return StringHelper.replace( sql, "{alias}", criteriaQuery.getSQLAlias(criteria) );
	}

	public TypedValue[] getTypedValues(Criteria criteria, CriteriaQuery criteriaQuery)
	throws HibernateException {
		return typedValues;
	}

	public String toString() {
		return sql;
	}

	protected SQLCriterion(String sql, Object[] values, Type[] types) {
		this.sql = sql;
		typedValues = new TypedValue[values.length];
		for ( int i=0; i<typedValues.length; i++ ) {
			typedValues[i] = new TypedValue( types[i], values[i], EntityMode.POJO );
		}
	}

}