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public class PublishView
{
    @Inject
    private IEventBroker eventBroker;

    @PostConstruct
    public void createPartControl(Composite parent)
    {
        Button button = new Button(parent, SWT.PUSH);
        button.setText("Publish!");
        button.addSelectionListener(new SelectionListener() {
            @Override
            public void widgetSelected(SelectionEvent e)
            {
                System.out.format("Publishing on foo\n");
                eventBroker.send("foo", "Hello");
            }

            ...
        });
    }
}

public class PublishViewPart extends DIViewPart<PublishView>
{
    public PublishViewPart()
    {
        super(PublishView.class);
    }
}

public class SubscribeView
{
    ...

    @Inject
    public void handleFoo(@EventTopic("foo") Object data) {
        System.out.format("Received foo: %s\n", data);
    }
}

public class SubscribeViewPart extends DIViewPart<SubscribeView>
{
    public SubscribeViewPart()
    {
        super(SubscribeView.class);
    }
}