「Guice」を含む日記

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Guice と Seasar2 を連携させてみたよ

［参考文献］

• google-guice - Google Code

• S2Container

• 第 6 回 DI フレームワーク Guice で，さらば XML！：ITpro

S2 は、.dicon ファイルで定義をだいぶ簡略化できる。パフォーマンスはどうなんだろう。誰かテストしてくれいｗ

app.dicon

<?xml version="1.0" encoding="UTF-8" ?>

<!DOCTYPE components PUBLIC "-//SEASAR//DTD S2Container 2.4//EN" "http://www.seasar.org/dtd/components24.dtd">

<components namespace="client">

<include path="hello.dicon" />

<component class="org.seasar.guice.Client" />

</components>

hello.dicon

<?xml version="1.0" encoding="UTF-8" ?>

<!DOCTYPE components PUBLIC "-//SEASAR//DTD S2Container 2.4//EN"

"http://www.seasar.org/dtd/components24.dtd">

<components initializeOnCreate="false">

<component class="org.seasar.guice.HelloServiceImpl" />

</components>

HelloService.java、HelloServiceImpl.java は、上記 ITPro と内容が同じなので省略。

Module.java

package org.seasar.guice;

import org.seasar.framework.container.S2Container;

import org.seasar.framework.container.SingletonS2Container;

import org.seasar.framework.container.factory.S2ContainerFactory;

import com.google.inject.AbstractModule;

import com.google.inject.name.Names;

public class Module extends AbstractModule {

S2Container container = null;

public Module(S2Container container){

this.container = container;

}

@Override

protected void configure() {

bind(S2ContainerFactory.class).annotatedWith(Names.named(container.getPath()));

bind(Client.class).toInstance(SingletonS2Container.getComponent(Client.class));

}

}

Client.java

package org.seasar.guice;

public class Client {

private HelloService helloService = null;

public void setHelloService(HelloService helloService) {

this.helloService = helloService;

}

public void execute() {

helloService.sayHello();

}

}

Main.java

package org.seasar.guice;

import org.seasar.framework.container.S2Container;

import org.seasar.framework.container.factory.SingletonS2ContainerFactory;

import com.google.inject.Guice;

import com.google.inject.Injector;

public class Main {

private static final String PATH = ".\\app.dicon";

public static void main(String[] args) {

SingletonS2ContainerFactory.setConfigPath(PATH);

SingletonS2ContainerFactory.init();

S2Container container = SingletonS2ContainerFactory.getContainer();

Module module = new Module(container);

Injector injector = Guice.createInjector(module);

Client client = injector.getInstance(Client.class);

client.execute();

}

}

実行結果

java -cp ?? org.seasar.guice.Main

2008/05/13 21:19:22 org.seasar.framework.log.Logger info

情報: Running on [ENV]product, [DEPLOY MODE]Normal Mode

Hello, world!

実行環境：JDK 7 (build 1.7.0-ea-b24)

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