暗黙的なバインドAs we saw in the introduction, you don't always have to declare bindings explicitly. In the absence of an explicit binding, Guice will try to inject and create a new instance of the class you depend on. If you depend on an …

インジェクティング・プロバイダー（注入仲介者）Sometimes a client needs multiple instances of a dependency per injection. Other times a client may not want to actually retrieve an object until some time after the actual injection (if at all…

定数値のインジェクトWhen it comes to constant values, Guice gives special treatment to several types:定数値が設定されると、Guiceはそれぞれの種類によって固有の処理を行います。 Primitive types (int, char, ...) Primitive wrapper types (Intege…

文字列の変換If Guice still can't find an explicit binding for one of the above types, it will look for a constant String binding with the same binding annotation and try to convert its value. For example:Guiceが、上記の種類の中でも明示的な…

カスタムプロバイダーSometimes you need to create your objects manually rather than let Guice create them. For example, you might not be able to add @Inject annotations to the implementation class as it came from a 3rd party. In these cases…

サンプル：JNDIを使った統合Say for example we want to bind to objects from JNDI. We could implement a reusable custom provider similar to the one below. Notice we inject the JNDI Context:たとえばJNDIに登録されたオブジェクトをバインドしたい…

バインディングの範囲付けBy default, Guice creates a new object for every injection. We refer to this as having "no scope." You can specify a scope when you configure a binding. For example, to inject the same instance every time:デフォルト…

スコープアノテーションの作り方Annotations used for scoping should:範囲指定のために使うアノテーションは以下のように作成します。 Have a @Rentention(RUNTIME) annotation so we can see the annotation at runtime. Have a @Target({TYPE}) annotatio…

熱心なバインディングのロードGuice can wait to load singleton objects until you actually need them. This helps speed up development because your application starts faster and you only initialize what you need. However, sometimes you always …

スコープをまたいでインジェクトする場合You can safely inject objects from a larger scope into an object from a smaller scope. For example, you can inject an Http session-scoped object into an HTTP request-scoped object. However, injecting i…

デベロップメントステージ（開発・テスト環境ステージ）Guice is aware that your application goes through different stages of development. You can tell it which stage the application is running in when you create a container. Guice currently s…

メソッドのインターセプトGuice supports simple method interception using the AOP Alliance API. You can bind interceptors from your modules using Binder. For example, to apply a transaction interceptor to methods annotated with @Transactiona…

スタティックStatic変数・メソッドへのインジェクションStatic fields and methods make testing and reusing more difficult, but there are times where your only choice is to keep a static reference to the Injector. スタティックフィールドとメソッ…

省略可能なインジェクションSometimes your code should work whether a binding exists or not. In these cases, you can use @Inject(optional=true) and Guice can override your default implementation with a bound implementation when available. For…

文字列へのバインドWe try to avoid using strings whenever possible as they're prone to misspellings, not tool friendly, and so on, but using strings instead of creating custom annotations can prove useful for quick and dirty code. For these…

Struts 2 サポートTo install the Guice Struts 2 plugin with Struts 2.0.6 or later, simply include guice-struts2-plugin-1.0.jar in your web application's classpath and select Guice as your ObjectFactory implementation in your struts.xml file…

カウントするサンプルSay for example that we want to count the number of requests in a session. Define a Counter object which will live on the session:例として、セッション中のリクエストの数を数える機能を持ったサンプルを挙げましょう。Session…

JMXへのインジェクションSee com.google.inject.tools.jmx.APIの「com.google.inject.tools.jmx」を参照してください。