RecordNumberBinding.java

/*-
 * See the file LICENSE for redistribution information.
 *
 * Copyright (c) 2000-2005
 *      Sleepycat Software.  All rights reserved.
 *
 * $Id: RecordNumberBinding.java,v 12.1 2005/01/31 19:27:29 mark Exp $
 */

package com.sleepycat.bind;

import com.sleepycat.compat.DbCompat;
import com.sleepycat.db.DatabaseEntry;

public class RecordNumberBinding implements EntryBinding {

    public RecordNumberBinding() {
    }

    // javadoc is inherited
    public Object entryToObject(DatabaseEntry entry) {

        return new Long(entryToRecordNumber(entry));
    }

    // javadoc is inherited
    public void objectToEntry(Object object, DatabaseEntry entry) {

        recordNumberToEntry(((Number) object).longValue(), entry);
    }

    public static long entryToRecordNumber(DatabaseEntry entry) {

        return DbCompat.getRecordNumber(entry) & 0xFFFFFFFFL;
    }

    public static void recordNumberToEntry(long recordNumber,
                                           DatabaseEntry entry) {
        entry.setData(new byte[4], 0, 4);
        DbCompat.setRecordNumber(entry, (int) recordNumber);
    }
}

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