/*
* Copyright 2004-2005 the original author or authors.
*
* 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.springmodules.validation.valang;
import org.springframework.util.Assert;
import org.springframework.util.ObjectUtils;
import org.springmodules.validation.valang.functions.AbstractInitializableFunction;
import org.springmodules.validation.valang.functions.Function;
/**
* @author Uri Boness
*/
public class EqualsFunction extends AbstractInitializableFunction {
protected void validateArguments(Function[] arguments) {
Assert.isTrue(arguments.length == 2, "EqualsFunction can only be initialized with two arguments");
}
protected Object getResult(Object target, Function[] arguments) {
Object value1 = arguments[0].getResult(target);
Object value2 = arguments[1].getResult(target);
return (ObjectUtils.nullSafeEquals(value1, value2)) ? Boolean.TRUE : Boolean.FALSE;
}
}