Picoでセッター・インジェクション

Picoはシンプルでいいなー。jarは１個だけだし。

メイン。

package piconano;
import org.picocontainer.MutablePicoContainer;

import org.picocontainer.defaults.DefaultPicoContainer;

import org.picocontainer.defaults.SetterInjectionComponentAdapterFactory;
import piconano.component.Hoge;

import piconano.component.impl.BarImpl;

import piconano.component.impl.FooImpl;

import piconano.component.impl.HogeImpl;

import piconano.component.impl.ZooImpl;
public class Main {
    public static void main(String[] args) {

        MutablePicoContainer container = new DefaultPicoContainer(

                new SetterInjectionComponentAdapterFactory());
        container.registerComponentImplementation(ZooImpl.class);

        container.registerComponentImplementation(BarImpl.class);

        container.registerComponentImplementation(FooImpl.class);

        container.registerComponentImplementation(HogeImpl.class);
        Hoge hoge = (Hoge) container.getComponentInstanceOfType(Hoge.class);

        hoge.perform();

    }

}

コンポーネント(インターフェース)。

package piconano.component;
public interface Bar {
    public void perform();
}
package piconano.component;
public interface Foo {
    public void perform();
}
package piconano.component;
public interface Hoge {
    public void perform();
}
package piconano.component;
public interface Zoo {
    public void perform();
}

コンポーネント(実装)。

package piconano.component.impl;
import piconano.component.Bar;
public class BarImpl implements Bar {
    public void perform() {

        System.out.println(this);

    }
}
package piconano.component.impl;
import piconano.component.Foo;

import piconano.component.Zoo;
public class FooImpl implements Foo {
    private Zoo zoo = null;
    public void setZoo(Zoo zoo) {

        this.zoo = zoo;

    }
    /////////////////////////////////////////////////////////////////

    public void perform() {

        System.out.println(this);

        zoo.perform();

    }
}
package piconano.component.impl;
import piconano.component.Bar;

import piconano.component.Foo;

import piconano.component.Hoge;
public class HogeImpl implements Hoge {
    private Foo foo = null;
    public void setFoo(Foo foo) {

        this.foo = foo;

    }
    private Bar bar = null;
    public void setBar(Bar bar) {

        this.bar = bar;

    }
    /////////////////////////////////////////////////////////////////

    public void perform() {

        System.out.println(this);

        foo.perform();

        bar.perform();

    }
}
package piconano.component.impl;
import piconano.component.Zoo;
public class ZooImpl implements Zoo {
    public void perform() {

        System.out.println(this);

    }
}