/*
* 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.util.condition.common;
import org.springframework.util.Assert;
import org.springmodules.validation.util.condition.AbstractCondition;
/**
* A condition that checks whether the checked object is of a specific type.
*
* @author Uri Boness
*/
public class InstanceOfCondition extends AbstractCondition {
private Class clazz;
/**
* Constructs a new InstanceOfCondition with a given class the checked object will be checked against.
*
* @param clazz The class the checked object will be checked against.
*/
public InstanceOfCondition(Class clazz) {
Assert.notNull(clazz, "Class cannot be null");
this.clazz = clazz;
}
/**
* Checks whether the given object is an instance of the class associated with this condition.
*
* @param object The object to be checked.
* @return <code>true</code> if the given object is an instance of the class associated with this condition,
* <code>false</code> otherwise. Note: if the given object is <code>null</code>, <code>false</code>
* will be returned.
*/
public boolean doCheck(Object object) {
if (object == null) {
return false;
}
return clazz.isAssignableFrom(object.getClass());
}
//============================================= Setter/Getter ===================================================
/**
* Returns the class associated with this condition.
*
* @return The class associated with this condition.
*/
public Class getClazz() {
return clazz;
}
}