closeabledisposerrecord.java

Mobile 应用程序使用 Java Micro Edition (Java ME) 平台

/*
 * @(#)CloseableDisposerRecord.java	1.1 05/11/23
 *
 * Copyright 2005 Sun Microsystems, Inc. All rights reserved.
 * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */

package com.sun.imageio.stream;

import java.io.Closeable;
import java.io.IOException;
import sun.java2d.DisposerRecord;

/**
 * Convenience class that closes a given resource (e.g. RandomAccessFile),
 * typically associated with an Image{Input,Output}Stream, prior to the
 * stream being garbage collected.
 */
public class CloseableDisposerRecord implements DisposerRecord {
    private Closeable closeable;

    public CloseableDisposerRecord(Closeable closeable) {
        this.closeable = closeable;
    }

    public synchronized void dispose() {
        if (closeable != null) {
            try {
                closeable.close();
            } catch (IOException e) {
            } finally {
                closeable = null;
            }
        }
    }
}