org.springmodules.validation.util.condition.collection.AbstractCollectionCondition Maven / Gradle / Ivy
/*
* 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.collection;
import java.util.Collection;
import org.springmodules.validation.util.condition.NonNullAcceptingCondition;
/**
* A base class for all collection conditions.
*
* @author Uri Boness
*/
public abstract class AbstractCollectionCondition extends NonNullAcceptingCondition {
/**
* See {@link NonNullAcceptingCondition#beforeObjectChecked(Object)}.
*
* Also verifies the given object is of a {@link Collection} or an array.
*/
protected void beforeObjectChecked(Object object) {
super.beforeObjectChecked(object);
if (!(object instanceof Collection) && !object.getClass().isArray()) {
throw new IllegalArgumentException(getClass().getName() + " can only checkCalendar collection, iterators, or arrays");
}
}
/**
* See {@link org.springmodules.validation.util.condition.AbstractCondition#doCheck(Object)}.
*
* If the given object is an array, the call is delegated to {@link #checkArray(Object)}.
*
* If the given object is of a {@link Collection} type, the call is delegated to
* {@link #checkCollection(java.util.Collection)}.
*/
public final boolean doCheck(Object object) {
if (object.getClass().isArray()) {
return checkArray(object);
}
return checkCollection((Collection) object);
}
/**
* Checks whether the given array adheres to this Condition.
*
* @param array The array to be checked.
* @return true if the given array adheres to this condition, false otherwise.
*/
protected abstract boolean checkArray(Object array);
/**
* Checks whether the given collection adheres to this Condition.
*
* @param collection The collection to be checked.
* @return true if the given collection adheres to this condition, false otherwise.
*/
protected abstract boolean checkCollection(Collection collection);
}