org.apache.tapestry5.internal.pageload
Class EmbeddedComponentAssemblerImpl

java.lang.Object
  org.apache.tapestry5.internal.pageload.EmbeddedComponentAssemblerImpl

public class EmbeddedComponentAssemblerImpl
extends Object

Constructor Summary

EmbeddedComponentAssemblerImpl(ComponentAssemblerSource assemblerSource, ComponentInstantiatorSource instantiatorSource, ComponentClassResolver componentClassResolver, String componentClassName, ComponentResourceSelector selector, EmbeddedComponentModel embeddedModel, String templateMixins, Location location)

Method Summary

int	addMixinsToElement(ComponentPageElement newElement) Adds mixins to the newly created embedded element.
org.apache.tapestry5.internal.pageload.ParameterBinder	createParameterBinder(String qualifiedParameterName) Creates a binder that can later be used to bind the parameter.
org.apache.tapestry5.internal.pageload.ComponentAssembler	getComponentAssembler() Returns the assembler responsible for creating instances of this embedded component.
Set<String>	getFormalParameterNames() Returns the names of all formal parameters.
Location	getLocation() Returns the location associated with this object for error reporting purposes.
boolean	isBound(String parameterName) Checks to see if the parameter name has been bound.
void	setBound(String parameterName) Marks the parameter name as bound.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

EmbeddedComponentAssemblerImpl

public EmbeddedComponentAssemblerImpl(ComponentAssemblerSource assemblerSource,
                                      ComponentInstantiatorSource instantiatorSource,
                                      ComponentClassResolver componentClassResolver,
                                      String componentClassName,
                                      ComponentResourceSelector selector,
                                      EmbeddedComponentModel embeddedModel,
                                      String templateMixins,
                                      Location location)

Parameters:

assemblerSource -

instantiatorSource - used to access component models

componentClassResolver - used to convert mixin types to component models

componentClassName - class name of embedded component

selector - used to select template and other resources

embeddedModel - embedded model (may be null for components defined in the template)

templateMixins - list of mixins from the t:mixins element (possibly null)

location - location of components element in its container's template

Method Detail

getComponentAssembler

public org.apache.tapestry5.internal.pageload.ComponentAssembler getComponentAssembler()

Returns the assembler responsible for creating instances of this embedded component.

createParameterBinder

public org.apache.tapestry5.internal.pageload.ParameterBinder createParameterBinder(String qualifiedParameterName)

Creates a binder that can later be used to bind the parameter. The parameter name may be unqualified ("value") or have a mixin prefix ("mymixin.value"). In the former case, the correct mixin is located (though the more typical case is to bind a parameter of the component itself, not a parameter of a mixin attached to the component). In the latter case, the mixinId is validated (to ensure it exists). In addition, a special mixinid that matches the component's class name can be used; this is necessary to disambiguate informal parameters of the component from formal mixin parameters (where an unqualified name would be bound to the mixin's parameter).

If the name of the parameter does not match a formal parameter of the component (or mixin) and the component (or mixin) does not support informal parameters, then null is returned.

This method should only be called at page-assembly time as it requires some data that is collected during ComponentAssembly construction in order to handle published parameters of embedded components.

Parameters:

qualifiedParameterName - simple or qualified parameter name

Returns:

object that can bind the parameter

isBound

public boolean isBound(String parameterName)

Checks to see if the parameter name has been bound.

setBound

public void setBound(String parameterName)

Marks the parameter name as bound. This is necessary to keep template bindings from overriding bindings in the Component annotation (even inherited bindings).

addMixinsToElement

public int addMixinsToElement(ComponentPageElement newElement)

Adds mixins to the newly created embedded element.

Parameters:

newElement - new element requiring mixins

Returns:

number of mixins added

getLocation

public Location getLocation()

Description copied from interface: Locatable

Returns the location associated with this object for error reporting purposes.

getFormalParameterNames

public Set<String> getFormalParameterNames()

Returns the names of all formal parameters.