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This is a backport of OpenJFX 8 to run on Java 7.
The newest version!
/*
* Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package com.sun.javafx.fxml.expression;
import java.util.List;
/**
* Abstract base class for binary expressions.
*/
public abstract class BinaryExpression extends Expression {
private Expression left;
private Expression right;
public BinaryExpression(Expression left, Expression right) {
if (left == null) {
throw new NullPointerException();
}
if (right == null) {
throw new NullPointerException();
}
this.left = left;
this.right = right;
}
public Expression getLeft() {
return left;
}
public Expression getRight() {
return right;
}
public abstract String getOperator();
@Override
public void update(Object namespace, Object value) {
throw new UnsupportedOperationException();
}
@Override
public boolean isDefined(Object namespace) {
return left.isDefined(namespace) && right.isDefined(namespace);
}
@Override
public boolean isLValue() {
return false;
}
@Override
protected void getArguments(List arguments) {
left.getArguments(arguments);
right.getArguments(arguments);
}
@Override
public String toString() {
return "(" + left + " " + getOperator() + " " + right + ")";
}
}