/*
* Copyright 2011 Goldman Sachs.
*
* 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 com.gs.collections.impl.collection.mutable;
import java.io.Serializable;
import java.util.Collection;
import com.gs.collections.api.collection.MutableCollection;
/**
* An unmodifiable view of a collection.
*
* @see MutableCollection#asUnmodifiable()
*/
public class UnmodifiableMutableCollection<T>
extends AbstractUnmodifiableMutableCollection<T>
implements Serializable
{
UnmodifiableMutableCollection(MutableCollection<? extends T> collection)
{
super(collection);
}
/**
* This method will take a MutableCollection and wrap it directly in a UnmodifiableMutableCollection. It will
* take any other non-GS-collection and first adapt it will a CollectionAdapter, and then return a
* UnmodifiableMutableCollection that wraps the adapter.
*/
public static <E, C extends Collection<E>> UnmodifiableMutableCollection<E> of(C collection)
{
if (collection == null)
{
throw new IllegalArgumentException("cannot create a UnmodifiableMutableCollection for null");
}
return new UnmodifiableMutableCollection<E>(CollectionAdapter.adapt(collection));
}
protected Object writeReplace()
{
return new UnmodifiableCollectionSerializationProxy<T>(this.getMutableCollection());
}
}