Examples of org.apache.tapestry.spec.IComponentSpecification

org.apache.tapestry.spec.IComponentSpecification
A specification for a component, as read from an XML specification file.
A specification consists of
- An implementing class
- An optional template
- An optional description
- A set of contained components
- Bindings for the properties of each contained component
- A set of named assets
- Definitions for helper beans
- Any reserved names (used for HTML attributes)
From this information, an actual component may be instantiated and initialized. Instantiating a component is usually a recursive process, since to initialize a container component, it is necessary to instantiate and initialize its contained components as well. @see org.apache.tapestry.IComponent @see IContainedComponent @see IComponentSpecification @see org.apache.tapestry.engine.IPageLoader @author glongman@intelligentworks.com @version $Id: IComponentSpecification.java 243791 2004-02-19 17:38:13Z hlship $

     */


    void bind(IComponent container, IComponent component,
            IContainedComponent contained, String defaultBindingPrefix)
    {
        IComponentSpecification spec = component.getSpecification();
        boolean formalOnly = !spec.getAllowInformalParameters();


        if (contained.getInheritInformalParameters())
        {
            if (formalOnly)
                throw new ApplicationRuntimeException(PageloadMessages
                        .inheritInformalInvalidComponentFormalOnly(component),
                        component, contained.getLocation(), null);


            IComponentSpecification containerSpec = container
                    .getSpecification();


            if (!containerSpec.getAllowInformalParameters())
                throw new ApplicationRuntimeException(PageloadMessages
                        .inheritInformalInvalidContainerFormalOnly(container,
                                component), component, contained.getLocation(),
                        null);

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                String type = contained.getType();
                Location location = contained.getLocation();


                _componentResolver.resolve(cycle, namespace, type, location);


                IComponentSpecification componentSpecification = _componentResolver
                        .getSpecification();
                INamespace componentNamespace = _componentResolver
                        .getNamespace();


                // Instantiate the contained component.

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        _componentResolver.resolve(cycle, container.getNamespace(),
                componentType, location);


        INamespace componentNamespace = _componentResolver.getNamespace();
        IComponentSpecification spec = _componentResolver.getSpecification();


        IContainedComponent contained = new ContainedComponent();
        contained.setLocation(location);
        contained.setType(componentType);

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    private void beginComponentSpecificationInitial()
    {
        expectElement("component-specification");


        IComponentSpecification cs = _factory.createComponentSpecification();


        cs.setAllowBody(getBooleanAttribute("allow-body", true));
        cs.setAllowInformalParameters(getBooleanAttribute("allow-informal-parameters", true));


        String className = getAttribute("class");


        if (className != null)
            cs.setComponentClassName(className);


        cs.setSpecificationLocation(getResource());


        _rootObject = cs;


        push(_elementName, cs, STATE_COMPONENT_SPECIFICATION);
    }

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    private void beginPageSpecificationInitial()
    {
        expectElement("page-specification");


        IComponentSpecification cs = _factory.createComponentSpecification();


        String className = getAttribute("class");


        if (className != null)
            cs.setComponentClassName(className);


        cs.setSpecificationLocation(getResource());
        cs.setPageSpecification(true);


        _rootObject = cs;


        push(_elementName, cs, STATE_PAGE_SPECIFICATION);
    }

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        IAssetSpecification ia = _factory.createAssetSpecification();


        ia.setPath(prefix == null ? path : prefix + path);
        ia.setPropertyName(propertyName);


        IComponentSpecification cs = (IComponentSpecification) peekObject();


        cs.addAsset(name, ia);


        push(_elementName, ia, STATE_ALLOW_PROPERTY);
    }

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        bs.setClassName(className);
        bs.setLifecycle(lifecycle);
        bs.setPropertyName(propertyName);


        IComponentSpecification cs = (IComponentSpecification) peekObject();


        cs.addBeanSpecification(name, bs);


        push(_elementName, bs, STATE_BEAN);
    }

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        cc.setType(type);
        cc.setCopyOf(copyOf);
        cc.setInheritInformalParameters(inherit);
        cc.setPropertyName(propertyName);


        IComponentSpecification cs = (IComponentSpecification) peekObject();


        cs.addComponent(id, cc);


        if (hasCopyOf)
            copyBindings(copyOf, cs, cc);


        push(_elementName, cc, STATE_COMPONENT);

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        String type = getAttribute("type");


        if (type != null)
            ps.setType(type);


        IComponentSpecification cs = (IComponentSpecification) peekObject();


        cs.addParameter(name, ps);


        push(_elementName, ps, STATE_ALLOW_DESCRIPTION);
    }

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            ps.setType(type);


        ps.setPersistence(persistence);
        ps.setInitialValue(initialValue);


        IComponentSpecification cs = (IComponentSpecification) peekObject();
        cs.addPropertySpecification(ps);


        push(_elementName, ps, STATE_PROPERTY, false);
    }

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