RemoteFileSystemPhantomReference.java

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//   http://www.apache.org/licenses/LICENSE-2.0
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package org.apache.doris.fs.remote;

import org.apache.hadoop.fs.FileSystem;

import java.lang.ref.PhantomReference;
import java.lang.ref.ReferenceQueue;

public class RemoteFileSystemPhantomReference extends PhantomReference<RemoteFileSystem> {

    private FileSystem fs;

    /**
     * Creates a new phantom reference that refers to the given object and
     * is registered with the given queue.
     *
     * <p> It is possible to create a phantom reference with a {@code null}
     * queue.  Such a reference will never be enqueued.
     *
     * @param referent the object the new phantom reference will refer to
     * @param q        the queue with which the reference is to be registered,
     *                 or {@code null} if registration is not required
     */
    public RemoteFileSystemPhantomReference(RemoteFileSystem referent, ReferenceQueue<? super RemoteFileSystem> q) {
        super(referent, q);
        this.fs = referent.dfsFileSystem;
    }
}