shipmentkey.java

berkeleyDB,强大的嵌入式数据,多个数据库的内核

/*-
 * See the file LICENSE for redistribution information.
 *
 * Copyright (c) 2002-2004
 *	Sleepycat Software.  All rights reserved.
 *
 * $Id: ShipmentKey.java,v 1.3 2004/09/22 16:17:10 mark Exp $
 */

package com.sleepycat.examples.collections.ship.factory;

import com.sleepycat.bind.tuple.MarshalledTupleEntry;
import com.sleepycat.bind.tuple.TupleInput;
import com.sleepycat.bind.tuple.TupleOutput;

/**
 * A ShipmentKey serves as the key in the key/data pair for a shipment entity.
 *
 * <p> In this sample, ShipmentKey is bound to the stored key tuple entry by
 * implementing the MarshalledTupleEntry interface, which is called by {@link
 * SampleViews.MarshalledKeyBinding}. </p>
 *
 * @author Mark Hayes
 */
public class ShipmentKey implements MarshalledTupleEntry {

    private String partNumber;
    private String supplierNumber;

    public ShipmentKey(String partNumber, String supplierNumber) {

        this.partNumber = partNumber;
        this.supplierNumber = supplierNumber;
    }

    public final String getPartNumber() {

        return partNumber;
    }

    public final String getSupplierNumber() {

        return supplierNumber;
    }

    public String toString() {

        return "[ShipmentKey: supplier=" + supplierNumber +
                " part=" + partNumber + ']';
    }

    // --- MarshalledTupleEntry implementation ---

    public ShipmentKey() {

        // A no-argument constructor is necessary only to allow the binding to
        // instantiate objects of this class.
    }

    public void marshalEntry(TupleOutput keyOutput) {

        keyOutput.writeString(this.partNumber);
        keyOutput.writeString(this.supplierNumber);
    }

    public void unmarshalEntry(TupleInput keyInput) {

        this.partNumber = keyInput.readString();
        this.supplierNumber = keyInput.readString();
    }
}