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DeyuGoGoDeyuGoGo
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easy observer imp without test
1 parent ae9ac0e commit 3ec72e6

12 files changed

Lines changed: 127 additions & 3 deletions

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‎HeadFirstDesignPatterns/src/observer/Arena.java‎

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package observer;
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import java.util.ArrayList;
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public abstract class Arena {
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protected GameResult mGameResult;
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private ArrayList<ArenaViewer> Views = new ArrayList<ArenaViewer>();
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public GameResult getGameResult(){
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return mGameResult;
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}
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public void registerArenaViewer(ArenaViewer viewer){
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if(!Views.contains(viewer))Views.add(viewer);
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}
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public void unregisterArenaViewer(ArenaViewer viewer){
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if(Views.contains(viewer))Views.remove(viewer);
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}
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public void notifyViewers(){
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for(ArenaViewer viewer : Views){
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viewer.OnGameUpdate(mGameResult);
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}
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}
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public void onNewGameResult(GameResult gameResult ){
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mGameResult = gameResult;
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notifyViewers();
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}
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}

‎HeadFirstDesignPatterns/src/observer/ArenaGameResult.java‎

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package observer;
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public class ArenaGameResult implements GameResult{
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public String mWinnerName;
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public int mGameNumber;
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public ArenaGameResult(String winner , int gameNumber){
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this.mWinnerName = winner;
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this.mGameNumber = gameNumber;
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}
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@Override
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public String getWinner() {
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return mWinnerName;
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}
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@Override
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public int getGameNumber() {
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return mGameNumber;
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}
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}

‎HeadFirstDesignPatterns/src/observer/ArenaViewer.java‎

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package observer;
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public interface ArenaViewer {
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public void OnGameUpdate(GameResult result);
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}

‎HeadFirstDesignPatterns/src/observer/DeyuArena.java‎

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package observer;
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public class DeyuArena extends Arena{
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public DeyuArena(){
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mGameResult = new ArenaGameResult("", 0);
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}
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}

‎HeadFirstDesignPatterns/src/observer/DeyuNoGoodViewer.java‎

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package observer;
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import util.JavaLog;
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public class DeyuNoGoodViewer implements ArenaViewer , TrashTalkViewer{
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private GameResult mGameResult ;
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@Override
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public void sayTrashTalk() {
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JavaLog.d("他媽的 怎麼這" + mGameResult.getGameNumber() + "場比賽，又是" + mGameResult.getWinner() +"這爛咖贏");
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}
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@Override
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public void OnGameUpdate(GameResult result) {
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mGameResult = result;
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sayTrashTalk();
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}
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}

‎HeadFirstDesignPatterns/src/observer/DeyuViewer.java‎

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package observer;
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import util.JavaLog;
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public class DeyuViewer implements ArenaViewer , TrashTalkViewer{
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private GameResult mGameResult ;
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@Override
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public void sayTrashTalk() {
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JavaLog.d("怎麼這" + mGameResult.getGameNumber() + "場比賽，" + mGameResult.getWinner() +"表現得太精彩了。");
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}
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@Override
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public void OnGameUpdate(GameResult result) {
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mGameResult = result;
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sayTrashTalk();
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}
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}

‎HeadFirstDesignPatterns/src/observer/GameResult.java‎

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package observer;
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public interface GameResult {
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public String getWinner();
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public int getGameNumber();
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}

‎HeadFirstDesignPatterns/src/observer/Go.java‎

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package observer;
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public class Go {
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public static void main(String[] args) {
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Arena mArena = new DeyuArena();
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ArenaViewer a = new DeyuNoGoodViewer();
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ArenaViewer b = new DeyuViewer();
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mArena.registerArenaViewer(a);
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mArena.onNewGameResult(new ArenaGameResult("§C¯à¨à", 1));
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mArena.registerArenaViewer(b);
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mArena.onNewGameResult(new ArenaGameResult("«Ó®ðªº±þ¤â", 2));
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}
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}

‎HeadFirstDesignPatterns/src/observer/TrashTalkViewer.java‎

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package observer;
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public interface TrashTalkViewer {
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public void sayTrashTalk();
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}

HeadFirstDesignPatterns/src/test/FirstTest.java renamed to HeadFirstDesignPatterns/src/strategy/test/FirstTest.java

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package test;
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package strategy.test;
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import static org.junit.Assert.*;
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