/*
* 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 NumericValueExpression implements RowValueConstructorElement {
private Number value;
private boolean negated;
private NumericValueExpression expr;
private NumericValueExpression lhs;
private NumericOperator op;
private NumericValueExpression rhs;
public NumericValueExpression(Number value) {
this.value = value;
}
public NumericValueExpression(NumericValueExpression expr) {
this.expr = expr;
}
public NumericValueExpression(NumericValueExpression expr, boolean negate) {
this.expr = expr;
this.negated = negate;
}
public NumericValueExpression(NumericValueExpression lhs, NumericOperator op, NumericValueExpression rhs) {
this.lhs = lhs;
this.op = op;
this.rhs = rhs;
}
public Number getValue() {
return value;
}
public boolean isNegated() {
return negated;
}
@Override
public String toString() {
if (value != null)
return value.toString();
else if (value == null && expr == null)
return sign() + "(" + lhs + " " + op + " " + rhs + ")";
else
return sign() + expr;
}
private String sign() {
return negated ? "-" : "";
}
}