javax.faces.webapp
Class UIComponentTagBase

java.lang.Object
  extended by javax.faces.webapp.UIComponentTagBase
All Implemented Interfaces:
javax.servlet.jsp.tagext.JspTag
Direct Known Subclasses:
UIComponentClassicTagBase

public abstract class UIComponentTagBase
extends java.lang.Object
implements javax.servlet.jsp.tagext.JspTag

UIComponentTagBase is the base class for all JSP tags that correspond to a UIComponent instance in the view. This base class allows a single view to be described in a JSP page consisting of both UIComponentELTag and UIComponentTag instances.


Constructor Summary
UIComponentTagBase()
           
 
Method Summary
protected abstract  void addChild(UIComponent child)
          Add the component identifier of the specified UIComponent to the list of component identifiers created or located by nested UIComponentTags processing this request.
protected abstract  void addFacet(java.lang.String name)
          Add the facet name of the specified facet to the list of facet names created or located by nested UIComponentTags processing this request.
abstract  UIComponent getComponentInstance()
          Return the UIComponent instance that is associated with this tag instance.
abstract  java.lang.String getComponentType()
          Return the component type for the component that is or will be bound to this tag.
abstract  boolean getCreated()
          Return true if we dynamically created a new component instance during execution of this tag.
protected  javax.el.ELContext getELContext()
          Return the ELContext for the FacesContext for this request.
protected abstract  FacesContext getFacesContext()
          Return the FacesContext instance for the current request.
protected abstract  int getIndexOfNextChildTag()
          Return the index of the next child to be added as a child of this tag.
abstract  java.lang.String getRendererType()
          Return the rendererType property that selects the Renderer to be used for encoding this component, or null to ask the component to render itself directly.
abstract  void setId(java.lang.String id)
          Set the component identifier for the component corresponding to this tag instance.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

UIComponentTagBase

public UIComponentTagBase()
Method Detail

getFacesContext

protected abstract FacesContext getFacesContext()

Return the FacesContext instance for the current request. This value will be non-null only from the beginning of doStartTag() through the end of doEndTag() for each tag instance.


getELContext

protected javax.el.ELContext getELContext()

Return the ELContext for the FacesContext for this request.

This is a convenience for getFacesContext().getELContext().


addChild

protected abstract void addChild(UIComponent child)

Add the component identifier of the specified UIComponent to the list of component identifiers created or located by nested UIComponentTags processing this request.

Parameters:
child - New child whose identifier should be added

addFacet

protected abstract void addFacet(java.lang.String name)

Add the facet name of the specified facet to the list of facet names created or located by nested UIComponentTags processing this request.

Parameters:
name - Facet name to be added

setId

public abstract void setId(java.lang.String id)

Set the component identifier for the component corresponding to this tag instance. If the argument begins with UIViewRoot.UNIQUE_ID_PREFIX throw an IllegalArgumentException

Parameters:
id - The new component identifier. This may not start with UIViewRoot.UNIQUE_ID_PREFIX.
Throws:
java.lang.IllegalArgumentException - if the argument is non-null and starts with UIViewRoot.UNIQUE_ID_PREFIX.

getComponentType

public abstract java.lang.String getComponentType()

Return the component type for the component that is or will be bound to this tag. This value can be passed to Application.createComponent(java.lang.String) to create the UIComponent instance for this tag. Subclasses must override this method to return the appropriate value.


getRendererType

public abstract java.lang.String getRendererType()

Return the rendererType property that selects the Renderer to be used for encoding this component, or null to ask the component to render itself directly. Subclasses must override this method to return the appropriate value.


getComponentInstance

public abstract UIComponent getComponentInstance()

Return the UIComponent instance that is associated with this tag instance. This method is designed to be used by tags nested within this tag, and only returns useful results between the execution of doStartTag() and doEndTag() on this tag instance.


getCreated

public abstract boolean getCreated()

Return true if we dynamically created a new component instance during execution of this tag. This method is designed to be used by tags nested within this tag, and only returns useful results between the execution of doStartTag() and doEndTag() on this tag instance.


getIndexOfNextChildTag

protected abstract int getIndexOfNextChildTag()

Return the index of the next child to be added as a child of this tag. The default implementation maintains a list of created components and returns the size of the list.



Copyright 2002-2006 Sun Microsystems, Inc. All Rights Reserved.