DoubleBinding.java

/*-
 * See the file LICENSE for redistribution information.
 *
 * Copyright (c) 2000-2005
 *      Sleepycat Software.  All rights reserved.
 *
 * $Id: DoubleBinding.java,v 12.2 2005/08/01 20:25:13 mark Exp $
 */

package com.sleepycat.bind.tuple;

import com.sleepycat.db.DatabaseEntry;

public class DoubleBinding extends TupleBinding {

    private static final int DOUBLE_SIZE = 8;

    // javadoc is inherited
    public Object entryToObject(TupleInput input) {

        return new Double(input.readDouble());
    }

    // javadoc is inherited
    public void objectToEntry(Object object, TupleOutput output) {

        output.writeDouble(((Number) object).doubleValue());
    }

    // javadoc is inherited
    protected TupleOutput getTupleOutput(Object object) {

        return sizedOutput();
    }

    public static double entryToDouble(DatabaseEntry entry) {

        return entryToInput(entry).readDouble();
    }

    public static void doubleToEntry(double val, DatabaseEntry entry) {

        outputToEntry(sizedOutput().writeDouble(val), entry);
    }

    private static TupleOutput sizedOutput() {

        return new TupleOutput(new byte[DOUBLE_SIZE]);
    }
}

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