/*
* JEF - Copyright 2009-2010 Jiyi (mr.jiyi@gmail.com)
*
* 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 jef.database.jsqlparser.expression.operators.relational;
import jef.database.jsqlparser.visitor.Expression;
import jef.database.jsqlparser.visitor.ExpressionType;
import jef.database.jsqlparser.visitor.ExpressionVisitor;
import jef.database.jsqlparser.visitor.Notable;
public class ExistsExpression implements Expression,Notable {
private Expression rightExpression;
private boolean not = false;
public Expression getRightExpression() {
return rightExpression;
}
public void setRightExpression(Expression expression) {
rightExpression = expression;
}
public boolean isNot() {
return not;
}
public void setNot(boolean b) {
not = b;
}
public void accept(ExpressionVisitor expressionVisitor) {
expressionVisitor.visit(this);
}
public String toString() {
StringBuilder sb=new StringBuilder();
appendTo(sb);
return sb.toString();
}
public void appendTo(StringBuilder sb) {
if(not)sb.append("NOT ");
sb.append("EXISTS ");
rightExpression.appendTo(sb);
}
public ExpressionType getType() {
return ExpressionType.complex;
}
}