org.hibernate.criterion.LogicalExpression Maven / Gradle / Ivy
/*
* 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.
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*/
package org.hibernate.criterion;
import org.hibernate.Criteria;
import org.hibernate.HibernateException;
import org.hibernate.engine.TypedValue;
/**
* Superclass of binary logical expressions
* @author Gavin King
*/
public class LogicalExpression implements Criterion {
private final Criterion lhs;
private final Criterion rhs;
private final String op;
protected LogicalExpression(Criterion lhs, Criterion rhs, String op) {
this.lhs = lhs;
this.rhs = rhs;
this.op = op;
}
public TypedValue[] getTypedValues(Criteria criteria, CriteriaQuery criteriaQuery)
throws HibernateException {
TypedValue[] lhstv = lhs.getTypedValues(criteria, criteriaQuery);
TypedValue[] rhstv = rhs.getTypedValues(criteria, criteriaQuery);
TypedValue[] result = new TypedValue[ lhstv.length + rhstv.length ];
System.arraycopy(lhstv, 0, result, 0, lhstv.length);
System.arraycopy(rhstv, 0, result, lhstv.length, rhstv.length);
return result;
}
public String toSqlString(Criteria criteria, CriteriaQuery criteriaQuery)
throws HibernateException {
return '(' +
lhs.toSqlString(criteria, criteriaQuery) +
' ' +
getOp() +
' ' +
rhs.toSqlString(criteria, criteriaQuery) +
')';
}
public String getOp() {
return op;
}
public String toString() {
return lhs.toString() + ' ' + getOp() + ' ' + rhs.toString();
}
}