Examples of org.apache.tapestry5.services.Heartbeat

org.apache.tapestry5.services.Heartbeat
Allows for deferred execution of logic, useful when trying to get multiple components to coordinate behavior. A component may add a command to be executed " {@linkplain #end() at the end of the heartbeat}". The classic example of this is a Label and the field it labels; since we don't know which order the two will render, we can't tell if the field's id is correct until after both have rendered.
The Heartbeat is injected into components via the {@link org.apache.tapestry5.annotations.Environmental} annotation.

        formSupport = new FormSupportImpl(resources, validationId);


        environment.push(ValidationTracker.class, activeTracker);
        environment.push(FormSupport.class, formSupport);


        Heartbeat heartbeat = new HeartbeatImpl();


        environment.push(Heartbeat.class, heartbeat);


        heartbeat.begin();


        try
        {
            resources.triggerContextEvent(EventConstants.PREPARE_FOR_SUBMIT, context, eventCallback);


            if (eventCallback.isAborted())
                return true;


            resources.triggerContextEvent(EventConstants.PREPARE, context, eventCallback);


            environment.push(BeanValidationContext.class, new BeanValidationContextImpl(validate));


            if (eventCallback.isAborted())
                return true;


            executeStoredActions();


            heartbeat.end();


            formSupport.executeDeferred();


            fireValidateEvent(EventConstants.VALIDATE, context, eventCallback);

View Full Code Here

    @Test
    public void trigger_immediate()
    {
        FormSupport support = mockFormSupport();
        ComponentResources resources = mockComponentResources();
        Heartbeat heartbeat = new HeartbeatImpl();
        Request request = mockRequest();


        String elementName = "myname";


        train_getParameter(request, Form.SUBMITTING_ELEMENT_ID, null);
        train_getParameter(request, elementName, "login");


        replay();


        heartbeat.begin();


        Submit submit = new Submit(request);


        TestBase.set(submit, "resources", resources, "formSupport", support, "heartbeat", heartbeat, "defer", false);


        submit.processSubmission("xyz", elementName);


        verify();


        expect(resources.triggerEvent(EventConstants.SELECTED, null, null)).andReturn(false);


        replay();


        heartbeat.end();


        verify();
    }

View Full Code Here


        environment.push(ValidationTracker.class, activeTracker);
        environment.push(FormSupport.class, formSupport);
        environment.push(BeanValidationContext.class, new BeanValidationContextImpl(validate));


        Heartbeat heartbeat = new HeartbeatImpl();


        environment.push(Heartbeat.class, heartbeat);


        heartbeat.begin();


        try
        {
            resources.triggerContextEvent(EventConstants.PREPARE_FOR_SUBMIT, context, eventCallback);


            if (eventCallback.isAborted())
                return true;


            resources.triggerContextEvent(EventConstants.PREPARE, context, eventCallback);


            if (eventCallback.isAborted())
                return true;


            executeStoredActions();


            heartbeat.end();


            formSupport.executeDeferred();


            fireValidateFormEvent(context, eventCallback);

View Full Code Here

public class LoopTest extends InternalBaseTestCase
{
    @Test
    public void non_empty_iterator()
    {
        Heartbeat hb = mockHeartbeat();
        MarkupWriter writer = mockMarkupWriter();


        // Really hard to test the exact timing of all this; it will have to
        // be "proven" by integration tests.


        hb.begin();
        EasyMock.expectLastCall().times(3);


        hb.end();
        EasyMock.expectLastCall().times(3);


        replay();


        Loop loop = new Loop();

View Full Code Here

public class LoopTest extends InternalBaseTestCase
{
    @Test
    public void non_empty_iterator()
    {
        Heartbeat hb = mockHeartbeat();


        // Really hard to test the exact timing of all this; it will have to
        // be "proven" by integration tests.


        hb.begin();
        getMocksControl().times(3);


        hb.end();
        getMocksControl().times(3);


        replay();


        Loop loop = new Loop();

View Full Code Here

    @Test
    public void trigger_immediate()
    {
        FormSupport support = mockFormSupport();
        ComponentResources resources = mockComponentResources();
        Heartbeat heartbeat = new HeartbeatImpl();
        Request request = mockRequest();


        String elementName = "myname";


        train_getParameter(request, elementName, "login");


        replay();


        heartbeat.begin();


        Submit submit = new Submit(request);


        submit.setup(resources, support, heartbeat);
        submit.setDefer(false);


        submit.processSubmission(elementName);


        verify();


        expect(resources.triggerEvent(Submit.SELECTED_EVENT, null, null)).andReturn(false);


        replay();


        heartbeat.end();


        verify();
    }

View Full Code Here


        environment.push(ValidationTracker.class, activeTracker);
        environment.push(FormSupport.class, formSupport);
        environment.push(BeanValidationContext.class, new BeanValidationContextImpl(validate));


        Heartbeat heartbeat = new HeartbeatImpl();


        environment.push(Heartbeat.class, heartbeat);


        heartbeat.begin();


        try
        {
            resources.triggerContextEvent(EventConstants.PREPARE_FOR_SUBMIT, context, eventCallback);


            if (eventCallback.isAborted())
                return true;


            resources.triggerContextEvent(EventConstants.PREPARE, context, eventCallback);


            if (eventCallback.isAborted())
                return true;


            executeStoredActions();


            heartbeat.end();


            formSupport.executeDeferred();


            fireValidateFormEvent(context, eventCallback);

View Full Code Here

public class LoopTest extends InternalBaseTestCase
{
    @Test
    public void non_empty_iterator()
    {
        Heartbeat hb = mockHeartbeat();


        // Really hard to test the exact timing of all this; it will have to
        // be "proven" by integration tests.


        hb.begin();
        EasyMock.expectLastCall().times(3);


        hb.end();
        EasyMock.expectLastCall().times(3);


        replay();


        Loop loop = new Loop();

View Full Code Here

    @Test
    public void trigger_immediate()
    {
        FormSupport support = mockFormSupport();
        ComponentResources resources = mockComponentResources();
        Heartbeat heartbeat = new HeartbeatImpl();
        Request request = mockRequest();


        String elementName = "myname";


        train_getParameter(request, elementName, "login");


        replay();


        heartbeat.begin();


        Submit submit = new Submit(request);


        submit.setup(resources, support, heartbeat, null);
        submit.setDefer(false);


        submit.processSubmission(elementName);


        verify();


        expect(resources.triggerEvent(EventConstants.SELECTED, null, null)).andReturn(false);


        replay();


        heartbeat.end();


        verify();
    }

View Full Code Here

        Runnable r1 = mockRunnable();
        Runnable r2 = mockRunnable();


        replay();


        Heartbeat hb = new HeartbeatImpl();


        hb.begin();


        hb.defer(r1);
        hb.defer(r2);


        verify();


        r1.run();
        r2.run();


        replay();


        hb.end();


        verify();
    }

View Full Code Here

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