eclipse 适配器 模式的使用

 

最原始的方法

public class Person  implements IPropertySource  

适配的方法 

public class Person implements IAdaptable {

public Object getAdapter(Class adapter) {

if (adapter == IPropertySource.class) return new PersonPropertySource(this);
		return null;

}

}

使用扩展点来实现适配

<plugin>
   <extension
         point="org.eclipse.core.runtime.adapters">
      <factory
            adaptableType="org.eclipse.articles.adapters.core.Person"
            class="org.eclipse.articles.adapters.properties.PersonPropertiesSourceAdapterFactory">
         <adapter
               type="org.eclipse.ui.views.properties.IPropertySource">
         </adapter>
      </factory>
   </extension>
</plugin>

public class PersonPropertiesSourceAdapterFactory implements IAdapterFactory {
	public Object getAdapter(Object adaptableObject, Class adapterType) {
		if (adapterType == IPropertySource.class)
			return new PersonPropertySource((Person)adaptableObject);
		return null;
	}

	public Class[] getAdapterList() {
		return new Class[] {IPropertySource.class};
	}
}

public class Person implements IAdaptable {
	private String name;
	private Object street;
	private Object city;

	public Person(String name) {
		this.name = name;
		this.street = "";
		this.city = "";
	}

	public Object getAdapter(Class adapter) {
		return Platform.getAdapterManager().getAdapter(this, adapter);
	}
}

 

http://www.eclipse.org/articles/article.php?file=Article-Adapters/index.html