Examples of org.apache.tapestry.services.ComponentConstructor

org.apache.tapestry.services.ComponentConstructor
Starting with 4.0, copmonents do not always have a zero-args constructor; the enhanced subclass may take some parameters used to initialize instance variables. This interface represents a wrapper around a constructor and an array of parameters that can be used to stamp out new instances of a component. @author Howard M. Lewis Ship @since 4.0


    public void testComponentConstructorFailure()
    {
        Location l = fabricateLocation(13);


        ComponentConstructor cc = new ComponentConstructorImpl(BaseComponent.class
                .getConstructors()[0], new Object[]
        { "unexpected" }, l);


        try
        {
            cc.newInstance();
            unreachable();
        }
        catch (ApplicationRuntimeException ex)
        {
            assertExceptionSubstring(

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        try {
            
            _lock.lockInterruptibly();
            
            ComponentConstructor result = (ComponentConstructor) _cachedConstructors.get(specification);
            
            if (result == null) {
                
                Class baseClass = _classResolver.findClass(className);
                
                EnhancementOperationImpl eo = new EnhancementOperationImpl(_classResolver,
                        specification, baseClass, _classFactory, _log);
                
                // Invoking on the chain is the same as invoking on every
                // object in the chain (because method performEnhancement() is type void).
                
                _chain.performEnhancement(eo, specification);
                
                result = eo.getConstructor();
                
                // TODO: This should be optional to work around that IBM JVM bug.
                
                _validator.validate(baseClass, result.getComponentClass(), specification);
                
                _cachedConstructors.put(specification, result);
            }
            
            return result;

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                throw new ApplicationRuntimeException(PageloadMessages
                        .pageNotAllowed(id), container, spec.getLocation(),
                        null);
        }


        ComponentConstructor cc = _componentConstructorFactory
                .getComponentConstructor(spec, className);


        IComponent result = (IComponent) cc.newInstance();
        
        result.setNamespace(namespace);
        result.setPage(page);
        result.setContainer(container);
        result.setId(id);

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            throw new ApplicationRuntimeException(PageloadMessages
                    .classNotPage(pageClass), location, null);


        String pageName = namespace.constructQualifiedName(name);


        ComponentConstructor cc = _componentConstructorFactory
                .getComponentConstructor(spec, className);


        IPage result = (IPage) cc.newInstance();


        result.setNamespace(namespace);
        result.setPageName(pageName);
        result.setPage(result);
        result.setLocale(_locale);

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        String ref2 = eo.getClassReference(Map.class);


        eo.addMethod(Modifier.PUBLIC, new MethodSignature(Class.class, "getClassReference", null,
                null), "return " + ref + ";", l);


        ComponentConstructor cc = eo.getConstructor();


        GetClassReferenceFixture f = (GetClassReferenceFixture) cc.newInstance();


        assertSame(Map.class, f.getClassReference());


        verify();

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    public void testComponentConstructorFailure()
    {
        Location l = newLocation();


        ComponentConstructor cc = new ComponentConstructorImpl(BaseComponent.class
                .getConstructors()[0], new Object[]
        { "unexpected" }, "<classfab>", l);


        try
        {
            cc.newInstance();
            unreachable();
        }
        catch (ApplicationRuntimeException ex)
        {
            assertExceptionSubstring(

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        String ref2 = eo.getClassReference(Map.class);


        eo.addMethod(Modifier.PUBLIC, new MethodSignature(Class.class, "getClassReference", null,
                null), "return " + ref + ";", l);


        ComponentConstructor cc = eo.getConstructor();


        GetClassReferenceFixture f = (GetClassReferenceFixture) cc.newInstance();


        assertSame(Map.class, f.getClassReference());


        verify();

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    public void testComponentConstructorFailure()
    {
        Location l = newLocation();


        ComponentConstructor cc = new ComponentConstructorImpl(BaseComponent.class
                .getConstructors()[0], new Object[]
        { "unexpected" }, "<classfab>", l);


        try
        {
            cc.newInstance();
            unreachable();
        }
        catch (ApplicationRuntimeException ex)
        {
            assertExceptionSubstring(

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        try
        {
            _lock.lockInterruptibly();


            ComponentConstructor result = (ComponentConstructor) _cachedConstructors.get(specification);


            if (result == null)
            {
                Class baseClass = _classResolver.findClass(className);


                EnhancementOperationImpl eo = new EnhancementOperationImpl(_classResolver, specification, baseClass, _classFactory, _log);


                // Invoking on the chain is the same as invoking on every
                // object in the chain (because method performEnhancement() is type void).


                _chain.performEnhancement(eo, specification);


                result = eo.getConstructor();


                // TODO: This should be optional to work around that IBM JVM bug.


                _validator.validate(baseClass, result.getComponentClass(), specification);


                _cachedConstructors.put(specification, result);
            }


            return result;

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            if (IPage.class.isAssignableFrom(componentClass))
                throw new ApplicationRuntimeException(PageloadMessages.pageNotAllowed(id),
                                                      container, spec.getLocation(), null);
        }


        ComponentConstructor cc = _componentConstructorFactory.getComponentConstructor(spec, className);


        IComponent result = (IComponent) cc.newInstance();


        result.setNamespace(namespace);
        result.setPage(page);
        result.setContainer(container);
        result.setId(id);

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