org.teiid.language.IsNull Maven / Gradle / Ivy
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* Copyright Red Hat, Inc. and/or its affiliates
* and other contributors as indicated by the @author tags and
* the COPYRIGHT.txt file distributed with this work.
*
* 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.teiid.language;
import org.teiid.language.visitor.LanguageObjectVisitor;
/**
* Represents an IS NULL predicate.
*/
public class IsNull extends Condition implements Predicate {
private Expression expression;
private boolean negated;
public IsNull(Expression expr, boolean isNegated) {
expression = expr;
this.negated = isNegated;
}
public Expression getExpression() {
return expression;
}
public boolean isNegated() {
return this.negated;
}
public void acceptVisitor(LanguageObjectVisitor visitor) {
visitor.visit(this);
}
public void setExpression(Expression expression) {
this.expression = expression;
}
public void setNegated(boolean negated) {
this.negated = negated;
}
}