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Apache Commons VFS is a Virtual File System library.
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.commons.vfs2.cache;
import java.lang.ref.Reference;
import java.lang.ref.ReferenceQueue;
import java.lang.ref.WeakReference;
import org.apache.commons.vfs2.FileObject;
/**
* This implementation caches every file as long as it is strongly reachable by the java vm. As soon as the object is no
* longer reachable it will be discarded. In contrast to the SoftRefFilesCache this implementation might free resources
* faster as it don't wait until a memory limitation.
*
* @see java.lang.ref.WeakReference
*/
public class WeakRefFilesCache extends SoftRefFilesCache {
@Override
protected Reference createReference(final FileObject file, final ReferenceQueue refqueue) {
return new WeakReference<>(file, refqueue);
}
}
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