ModelServiceExampleHandler.java

package com.example.e4.rcp.todo.handlers;

import java.util.ArrayList;
import java.util.List;

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.workbench.modeling.EModelService;

public class ModelServiceExampleHandler {

	@Execute
	public void execute(MApplication application, EModelService service) {

		// Find objects by ID
		findPartsById(application, service);

		// Find objects by type
		findParts(application, service);

		// Find objects by tags
		findObjectsByTag(application, service);

	}

	// example for search by ID
	private void findPartsById(MApplication application, EModelService service) {
		List<MPart> findElements = service.findElements(application, "mypart",
				MPart.class, null);
		System.out.println("Found part(s) : " + findElements.size());

	}

	// example for search by type
	private void findParts(MApplication application,
			EModelService service) {
		List<MPart> parts = service.findElements(application, null,
				MPart.class, null);
		System.out.println("Found parts(s) : " + parts.size());

	}

	// example for search by tag
	private void findObjectsByTag(MApplication application,
			EModelService service) {
		List<String> tags = new ArrayList<String>();
		tags.add("justatag");
		List<MUIElement> elementsWithTags = service.findElements(application,
				null, null, tags);
		System.out.println("Found parts(s) : " + elementsWithTags.size());
	}
}