특집기사:Eclipse 4 플랫폼 서비스 튜토리얼

@Inject private EPartService partService;
 
// 파트 얻기
detailsTodoPart = partService.findPart("de.vogella.e4.tododetails");
 
// 파트 숨기기
partService.hidePart(detailsTodoPart);
 
// 파트 보이기
partService.showPart(detailsTodoPart, PartState.VISIBLE);

package com.example.e4.rcp.todo.handlers;
 
import org.eclipse.e4.core.di.annotations.Execute;
import org.eclipse.e4.ui.workbench.modeling.EPartService;
 
public class SaveHandler {
 
   @Execute
   void execute(EPartService partService) {
      partService.saveAll(false);
   }
}

package de.vogella.e4.modelservice.handlers;
 
import java.util.ArrayList;
import java.util.List;
 
import javax.inject.Inject;
 
import org.eclipse.e4.core.di.annotations.Execute;
import org.eclipse.e4.ui.model.application.MApplication;
import org.eclipse.e4.ui.model.application.ui.MUIElement;
import org.eclipse.e4.ui.model.application.ui.basic.MPart;
import org.eclipse.e4.ui.model.application.ui.basic.MWindow;
import org.eclipse.e4.ui.workbench.modeling.EModelService;
import org.eclipse.swt.widgets.Display;
 
 
public class ModelServiceExampleHandler {
 
    @Execute
    public void execute(MApplication application, EModelService service, Display display) {
        System.out.println("Got Model Service: " + (service != null));
 
        // 모델 서비스를 얻는 다른 방법.
        EModelService modelService = (EModelService) application.getContext().get(EModelService.class.getName());
 
        // 두 서비스는 동일하다.
        System.out.println("Got Model Service: " + (service != modelService));
 
        // ID로 모델 찾기.
        List<MPart> findElements = service.findElements(application, "mypart", MPart.class, null);
        System.out.println("Found part(s) : " + findElements.size());
 
        // 타입으로 모델 찾기.
        List<MPart> parts = service.findElements(application, null, MPart.class, null);
        System.out.println("Found parts(s) : " + parts.size());
 
        // 태그를 이용한 모델 찾기.
        List<String> tags = new ArrayList<String>();
        tags.add("justatag");
        List<MUIElement> elementsWithTags = modelService.findElements(application, null, null, tags);
        System.out.println("Found parts(s) : " + elementsWithTags.size());
 
        // MWindow를 찾아서 크기 변경하기.
        List<MWindow> windows = modelService.findElements(application, null, MWindow.class, null);
        if (windows.size()>=1){
             MWindow mWindow = windows.get(0);
             System.out.println("Got the window");
            for (int i = mWindow.getWidth(); i >= mWindow.getWidth() - 100; i--) {
                while (!display.readAndDispatch()){
                    mWindow.setWidth(i);
                    wait10();
                }
            }
        }
    }
    private void wait10(){
        try {
            Thread.sleep(10);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }
}

@Execute
public void execute(EModelService service, MWindow window) {
    MPartSashContainer find = (MPartSashContainer) service.find("mypartsashcontainer", window);
    List<MPartSashContainerElement> list = find.getChildren();
 
    int i = 0;
    // 컨테이너 안의 첫번째 파트를 더 크게(80) 한다.
    for (MPartSashContainerElement element : list) {
        element.setContainerData("80");
        if (i > 0) {
            element.setContainerData("20");
        }
        i++;
    }
}

@Inject ESelectionService selectionService;
 
viewer.addSelectionChangedListener(new ISelectionChangedListener() {
    @Override
    public void selectionChanged(SelectionChangedEvent event) {
        IStructuredSelection selection = (IStructuredSelection) viewer.getSelection();
        Object firstElement = selection.getFirstElement();
        selectionService.setSelection(selection.getFirstElement());
    }
});

@Inject
public void setTodo(@Optional @Named(IServiceConstants.ACTIVE_SELECTION) Todo todo) {
    if (todo != null) {
        // Do something with the value
    }
}

Command command = commandService.getCommand("com.example.mycommand");
 
// true를 반환.
System.out.println(command.isDefined());
 
// 핸들러를 활성화 한다. AboutHandler가 이미 존재한다고 가정한다.
handerService.activateHandler("com.example.mycommand", new AboutHandler());
 
ParameterizedCommand cmd = commandService.createCommand("com.example.mycommand", null);
 
// 커맨드의 몇몇 메서드들은 하위버전 호환성만을 위해 존재하며 무의미한 값을 리턴한다.
// 아래의 두 메서드는 false나 null을 리턴한다.
System.out.println(command.getHandler());
System.out.println(command.isEnabled());
 
// 실행이 가능한 경우에만 수행하게 한다.
System.out.println(handerService.canExecute(cmd));
handerService.executeHandler(cmd);