garageimpl.java

用Java写的面相对象的数据库管理系统

// You can redistribute this software and/or modify it under the terms of
// the Ozone Library License version 1 published by ozone-db.org.
//
// The original code and portions created by SMB are
// Copyright (C) 1997-2000 by SMB GmbH. All rights reserved.
//
// $Id: GarageImpl.java,v 1.16 2000/10/28 16:55:19 daniela Exp $

package org.ozoneDB.test;

import java.io.*;
import org.ozoneDB.*;
import org.ozoneDB.DxLib.*;


public class GarageImpl extends OzoneObject implements Garage {
    String name = "Morris";
    DxHashMap table = new DxHashMap();
    DxBag list = new DxArrayBag();
    
    
    /** */
    public GarageImpl() {
    }
    
    
    /** */
    public void print() {
        System.out.println( toString() );
    } 
    
    
    /** */
    public void printAll() throws Exception {
        DxIterator it = table.iterator();
        Auto auto;
        while ((auto = (Auto)it.next()) != null) {
            auto.print();
        } 
    } 
    
    
    /** */
    public Auto[] getAll() throws Exception {
        Auto[] ans = new Auto[table.count()];
        DxIterator it = table.iterator();
        for (int c = 0; it.next() != null; c++) {
            ans[c] = (Auto)it.object();
        } 
        return ans;
    } 
    
    
    /** */
    public int[] _setAll( Auto a0, int[] a1, Integer[] a2 ) throws Exception {
        System.out.println( "Got " + a1.length + " ints..." );
        System.out.println( "Got " + a2.length + " Integrs..." );
        return a1;
    } 
    
    
    /** */
    public void setAll( Integer age ) throws Exception {
        DxIterator it = table.iterator();
        Auto auto;
        while ((auto = (Auto)it.next()) != null) {
            auto.setAge( age );
        } 
    } 
    
    
    /** */
    public void _addAuto( Auto auto ) throws Exception {
        table.addForKey( auto, auto.name() );
    } 
    
    
    /** */
    public void _newAuto( String name ) throws Exception {
        Auto auto = (Auto)database().createObject( AutoImpl.class.getName() );
        auto.setName( name.toString() );
        table.addForKey( auto, name );
        list.add( auto );
    } 
    
    
    /** */
    public void _populate( Integer num ) throws Exception {
        for (int i = 0; i < num.intValue(); i++) {
            String name = "Auto" + String.valueOf( i );
            _newAuto( name );
        } 
    } 
    
    
    /** */
    public Auto autoForName( String search ) {
        return (Auto)table.elementForKey( search );
    } 
    
    
    /** */
    public void setAlter( DxInteger alter ) throws Exception {
        DxIterator it = table.iterator();
        Auto auto;
        while ((auto = (Auto)it.next()) != null) {
            auto.setAge( new Integer( alter.toInt() ) );
        } 
    } 
    
    
    /** */
    public void crunch( DxInteger num ) throws Exception {
        int n = num.toInt();
        for (int i = 0; i < n; i++) {
            _newAuto( String.valueOf( i ) );
        } 
        
        DxIterator it = table.iterator();
        Auto auto;
        while ((auto = (Auto)it.next()) != null) {
            auto.age();
        } 
    } 
    
    
    /** */
    public void _lockThis() throws Exception {
    } 
    
    
    /** */
    public void _langeTA( Garage garage ) throws Exception {
        Thread.currentThread().sleep( 10000 );
        if (garage != null) {
            garage._lockThis();
        } 
    } 
    
    
    /**
     * destructor fuer db-objekte
     */
    public void done() throws Exception {
        System.out.println( toString() + " done." );
        DxIterator it = table.iterator();
        Auto auto;
        while ((auto = (Auto)it.next()) != null) {
            database().deleteObject( auto );
        } 
    } 
    
    
    /** */
    public String toString() {
        return "Garage:" + name;
    } 
    
    
    /*
     *   public Object invoke (String methodName, int argNum, Object arg1, Object arg2, Object arg3)
         throws MethodNotFoundExc, IllegalAccessException, IllegalArgumentException, Throwable {
      if (methodName.equals("toString"))
         return toString();
      else if (methodName.equals("print"))
         print();
      else if (methodName.equals("crunch"))
         crunch ((DxInteger)arg1);
      else if (methodName.equals("langeTA"))
         langeTA ((Auto)arg1);
      else if (methodName.equals("lockThis"))
         lockThis();
      else if (methodName.equals("printAll"))
         printAll();
      else
         throw new MethodNotFoundExc();   
      return null;
      }   
     */
    protected void finalize() throws Throwable {
    // System.out.println (toString() + " abgeraeumt...");
    } 
}