StringBinding.java

/*-
 * See the file LICENSE for redistribution information.
 *
 * Copyright (c) 2000-2005
 *      Sleepycat Software.  All rights reserved.
 *
 * $Id: StringBinding.java,v 12.2 2005/08/01 20:25:14 mark Exp $
 */

package com.sleepycat.bind.tuple;

import com.sleepycat.util.UtfOps;
import com.sleepycat.db.DatabaseEntry;

public class StringBinding extends TupleBinding {

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

        return input.readString();
    }

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

        output.writeString((String) object);
    }

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

        return sizedOutput((String) object);
    }

    public static String entryToString(DatabaseEntry entry) {

        return entryToInput(entry).readString();
    }

    public static void stringToEntry(String val, DatabaseEntry entry) {

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

    private static TupleOutput sizedOutput(String val) {

        int stringLength =
            (val == null) ? 1 : UtfOps.getByteLength(val.toCharArray());
        stringLength++;           // null terminator
        return new TupleOutput(new byte[stringLength]);
    }
}

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