/*
* Copyright 2010 NCHOVY
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.krakenapps.sqlparser.ast;
public class NullPredicate implements BooleanExpression {
private ValueExpression expr;
private boolean isNotNull;
public NullPredicate(ValueExpression expr, boolean isNotNull) {
this.expr = expr;
this.isNotNull = isNotNull;
}
@Override
public String toString() {
String pred = "";
if (isNotNull)
pred = "NOT ";
return "(" + expr + " IS " + pred + "NULL";
}
}