org.richfaces.component

## Class AbstractRegion

- java.lang.Object
- - javax.faces.component.UIComponent
  - - javax.faces.component.UIComponentBase
    - - org.richfaces.component.AbstractRegion

- All Implemented Interfaces:
    EventListener, javax.faces.component.PartialStateHolder, javax.faces.component.StateHolder, javax.faces.component.TransientStateHolder, javax.faces.event.ComponentSystemEventListener, javax.faces.event.FacesListener, javax.faces.event.SystemEventListenerHolder, AjaxContainer, MetaComponentResolver
  Direct Known Subclasses:
    UIRegion

      public abstract class AbstractRegion
      extends javax.faces.component.UIComponentBase
      implements MetaComponentResolver, AjaxContainer

  The <a4j:region> component specifies a part of the JSF component tree to be processed on the server. The region causes all the a4j and rich Ajax controls to execute: decoding, validating, and updating the model. The region causes these components to execute even if not explicitly declared. As such, processing areas can more easily be marked using a declarative approach.

  Regions can be nested, in which case only the parent region of the component initiating the request will be processed.

  Author:
    Nick Belaevski

- - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `static String` | `COMPONENT_FAMILY`
    `static String` | `COMPONENT_TYPE`

    - ### Fields inherited from class javax.faces.component.UIComponent

      `ATTRS_WITH_DECLARED_DEFAULT_VALUES, BEANINFO_KEY, bindings, COMPOSITE_COMPONENT_TYPE_KEY, COMPOSITE_FACET_NAME, CURRENT_COMPONENT, CURRENT_COMPOSITE_COMPONENT, FACETS_KEY, HONOR_CURRENT_COMPONENT_ATTRIBUTES_PARAM_NAME, VIEW_LOCATION_KEY`

    - ### Fields inherited from interface org.richfaces.component.MetaComponentResolver

      `META_COMPONENT_SEPARATOR_CHAR`

    - ### Fields inherited from interface org.richfaces.component.AjaxContainer

      `DEFAULT_RENDER_ID, META_CLIENT_ID, META_COMPONENT_ID`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `AbstractRegion()`

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `String` | `resolveClientId(javax.faces.context.FacesContext facesContext, javax.faces.component.UIComponent contextComponent, String metaId)` Resolves and returns string identifying supported meta-component or `null` if provided meta-component name is not a supported one.
    `String` | `substituteUnresolvedClientId(javax.faces.context.FacesContext facesContext, javax.faces.component.UIComponent contextComponent, String metaComponentId)` Provides replacement for unresolved meta-component names.

    - ### Methods inherited from class javax.faces.component.UIComponentBase

      `addClientBehavior, addFacesListener, broadcast, clearInitialState, decode, encodeBegin, encodeChildren, encodeEnd, findComponent, getAttributes, getChildCount, getChildren, getClientBehaviors, getClientId, getDefaultEventName, getEventNames, getFacesContext, getFacesListeners, getFacet, getFacetCount, getFacets, getFacetsAndChildren, getId, getListenersForEventClass, getParent, getPassThroughAttributes, getRenderer, getRendererType, getRendersChildren, getValueBinding, invokeOnComponent, isRendered, isTransient, markInitialState, processDecodes, processRestoreState, processSaveState, processUpdates, processValidators, queueEvent, removeFacesListener, restoreAttachedState, restoreState, saveAttachedState, saveState, setId, setParent, setRendered, setRendererType, setTransient, setValueBinding, subscribeToEvent, unsubscribeFromEvent`

    - ### Methods inherited from class javax.faces.component.UIComponent

      `encodeAll, getClientId, getCompositeComponentParent, getContainerClientId, getCurrentComponent, getCurrentCompositeComponent, getFamily, getNamingContainer, getPassThroughAttributes, getResourceBundleMap, getStateHelper, getStateHelper, getTransientStateHelper, getTransientStateHelper, getValueExpression, initialStateMarked, isCompositeComponent, isInView, isVisitable, popComponentFromEL, processEvent, pushComponentToEL, restoreTransientState, saveTransientState, setInView, setValueExpression, visitTree`

    - ### Methods inherited from class java.lang.Object

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

- - ### Field Detail

    - #### COMPONENT_TYPE

          public static final String COMPONENT_TYPE

      See Also:
        Constant Field Values

    - #### COMPONENT_FAMILY

          public static final String COMPONENT_FAMILY

      See Also:
        Constant Field Values

  - ### Constructor Detail

    - #### AbstractRegion

          public AbstractRegion()

  - ### Method Detail

    - #### resolveClientId

          public String resolveClientId(javax.faces.context.FacesContext facesContext,
                               javax.faces.component.UIComponent contextComponent,
                               String metaId)

      Description copied from interface: `MetaComponentResolver`
      Resolves and returns string identifying supported meta-component or `null` if provided meta-component name is not a supported one.
      Specified by:
        `resolveClientId` in interface `MetaComponentResolver`
      Parameters:
        `facesContext` - - current instance of `FacesContext`
        `contextComponent` - - instance of `UIComponent` that requested resolution of meta-component
        `metaId` - - name of meta-component (without leading '@' sign)
      Returns:
        clientId, one of supported meta-names such as @all, @this, etc. or `null`

    - #### substituteUnresolvedClientId

          public String substituteUnresolvedClientId(javax.faces.context.FacesContext facesContext,
                                            javax.faces.component.UIComponent contextComponent,
                                            String metaComponentId)

      Description copied from interface: `MetaComponentResolver`
      Provides replacement for unresolved meta-component names. Returns identifier string for the chosen substitution or `null`
      Specified by:
        `substituteUnresolvedClientId` in interface `MetaComponentResolver`
      Parameters:
        `facesContext` - - current instance of `FacesContext`
        `contextComponent` - - instance of `UIComponent` that requested resolution of meta-component
        `metaComponentId` - - name of meta-component (without leading '@' sign)
      Returns:
        clientId, one of supported meta-names such as @all, @this, etc. or `null`

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