org.tinygroup.tinysqldsl.expression.BinaryExpression Maven / Gradle / Ivy
/**
* Copyright (c) 1997-2013, www.tinygroup.org ([email protected]).
*
* Licensed under the GPL, Version 3.0 (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.gnu.org/licenses/gpl.html
*
* 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.tinygroup.tinysqldsl.expression;
/**
* A basic class for binary expressions, that is expressions having a left
* member and a right member which are in turn expressions.
*/
public abstract class BinaryExpression implements Expression {
private Expression leftExpression;
private Expression rightExpression;
private boolean not = false;
public BinaryExpression() {
super();
}
public BinaryExpression(Expression leftExpression,
Expression rightExpression) {
this(leftExpression, rightExpression, false);
}
public BinaryExpression(Expression leftExpression,
Expression rightExpression, boolean not) {
super();
this.leftExpression = leftExpression;
this.rightExpression = rightExpression;
this.not = not;
}
public Expression getLeftExpression() {
return leftExpression;
}
public void setLeftExpression(Expression leftExpression) {
this.leftExpression = leftExpression;
}
public Expression getRightExpression() {
return rightExpression;
}
public void setRightExpression(Expression rightExpression) {
this.rightExpression = rightExpression;
}
public boolean isNot() {
return not;
}
public void setNot(boolean not) {
this.not = not;
}
public String toString() {
return (not ? "NOT " : "") + getLeftExpression() + " " + getStringExpression() + " " + getRightExpression();
}
public abstract String getStringExpression();
}