Examples of org.apache.tapestry5.runtime.Component

org.apache.tapestry5.runtime.Component
Interface that defines the lifecycle of a component, within a page, allowing for callbacks into the component for many different events. This interface is part of the public API for Tapestry, but is not expected to be directly implemented by component classes; it should only be implemented as part of the component class transformation process.
Most of the methods are related to render phases; see the corresponding annotations and component rendering documentation to see how they relate to each other.
Starting in 5.3 this interface no longer implements {@link PageLifecycleListener}. Normally, this would be an incompatible change, but Component is not supposed to be directly implemented by user code.

        return coreResources.getLogger();
    }


    public Component getMixinByClassName(String mixinClassName)
    {
        Component result = mixinForClassName(mixinClassName);


        if (result == null)
            throw new TapestryException(StructureMessages.unknownMixin(completeId, mixinClassName), getLocation(), null);


        return result;

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        this.validatorMacro = validatorMacro;
    }


    public FieldValidator createValidator(Field field, String validatorType, String constraintValue)
    {
        Component component = (Component) field;
        assert InternalUtils.isNonBlank(validatorType);
        ComponentResources componentResources = component.getComponentResources();
        String overrideId = componentResources.getId();


        // So, if you use a TextField on your EditUser page, we want to search the messages
        // of the EditUser page (the container), not the TextField (which will always be the same).

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            // Add all the normal components to the final list.


            while (i.hasNext())
            {
                Component mixin = i.next();


                if (mixin.getComponentResources().getComponentModel().isMixinAfter()) continue;


                ordered.add(mixin);


                // Remove from list, leaving just the late executing mixins

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        return coreResources.getLogger();
    }


    public Component getMixinByClassName(String mixinClassName)
    {
        Component result = null;


        if (mixinIdToComponentResources != null)
        {
            for (InternalComponentResources resources : mixinIdToComponentResources.values())
            {

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        {
            logger.debug("Processing actions: {}", actionsBase64);


            ObjectInputStream ois = null;


            Component component = null;


            try
            {
                ois = new Base64ObjectInputStream(actionsBase64);


                while (true)
                {
                    String componentId = ois.readUTF();
                    ComponentAction action = (ComponentAction) ois.readObject();


                    component = source.getComponent(componentId);


                    logger.debug("Processing: {} {}", componentId, action);


                    action.execute(component);


                    component = null;
                }
            }
            catch (EOFException ex)
            {
                // Expected
            }
            catch (Exception ex)
            {
                Location location = component == null ? null : component.getComponentResources().getLocation();


                throw new TapestryException(ex.getMessage(), location, ex);
            }
            finally
            {

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    {
        FileUploadException uploadException = decoder.getUploadException();


        if (uploadException != null)
        {
            Component page = componentSource.getPage(parameters.getActivePageName());


            ComponentResultProcessorWrapper callback = new ComponentResultProcessorWrapper(resultProcessor);


            page.getComponentResources().triggerEvent(UploadEvents.UPLOAD_EXCEPTION, new Object[] { uploadException },
                                                      callback);


            // If an event handler exists and returns a value, then the callback will be aborted and a response
            // (typically a redirect) will already have been sent to the client.

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    @Test
    public void root_element_of_page()
    {
        RequestPageCache cache = mockRequestPageCache();
        Page page = mockPage();
        Component component = mockComponent();
        ComponentClassResolver resolver = mockComponentClassResolver();


        train_get(cache, PAGE_NAME, page);


        train_getRootComponent(page, component);

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    public void nested_element_within_page()
    {
        RequestPageCache cache = mockRequestPageCache();
        Page page = mockPage();
        ComponentPageElement element = mockComponentPageElement();
        Component component = mockComponent();
        ComponentClassResolver resolver = mockComponentClassResolver();


        train_get(cache, PAGE_NAME, page);


        train_getComponentElementByNestedId(page, NESTED_ELEMENT_ID, element);

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    @Test
    public void get_page_by_logical_name()
    {
        RequestPageCache cache = mockRequestPageCache();
        Page page = mockPage();
        Component component = mockComponent();
        ComponentClassResolver resolver = mockComponentClassResolver();


        train_get(cache, PAGE_NAME, page);
        train_getRootComponent(page, component);

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    @Test
    public void get_page_by_class()
    {
        RequestPageCache cache = mockRequestPageCache();
        Page page = mockPage();
        Component component = mockComponent();
        ComponentClassResolver resolver = mockComponentClassResolver();


        train_resolvePageClassNameToPageName(resolver, ComponentSourceImplTest.class.getName(), PAGE_NAME);


        train_get(cache, PAGE_NAME, page);

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