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## org.richfaces.component
Class AbstractPush

    java.lang.Object
      javax.faces.component.UIComponent
          javax.faces.component.UIComponentBase
              org.richfaces.component.AbstractPush

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

Direct Known Subclasses:
  UIPush

    public abstract class AbstractPush

extends javax.faces.component.UIComponentBase

The <a4j:push> component performs real-time updates on the client side from events triggered at the server side. The events are pushed out to the client through the RichFaces messaging queue (which is bound to Java Messaging Service - JMS). When the <a4j:push> component is triggered by a server event, it can in turn cause Ajax updates and changes.

Author:
  Nick Belaevski, Lukas Fryc

Field Summary
`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`

Constructor Summary
`AbstractPush()`

Method Summary
`abstract String` | `getAddress()` References the topic on the JMS server that contains the pushed messages
`String` | `getFamily()`
`abstract String` | `getOndataavailable()` The client-side script method to be called when a push notification is received
`abstract String` | `getOnerror()` The client-side script method to be called when an error has occurred with the push notifications
`abstract String` | `getOnsubscribed()` The client-side script method to be called when push is subscribed successfully to the topic.

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, 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, getNamingContainer, 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

### AbstractPush

    public AbstractPush()

Method Detail

### getFamily

    public String getFamily()

  Specified by:
    `getFamily` in class `javax.faces.component.UIComponent`

### getAddress

    public abstract String getAddress()

  References the topic on the JMS server that contains the pushed messages

### getOndataavailable

    public abstract String getOndataavailable()

  The client-side script method to be called when a push notification is received

### getOnsubscribed

    public abstract String getOnsubscribed()

  The client-side script method to be called when push is subscribed successfully to the topic.

### getOnerror

    public abstract String getOnerror()

  The client-side script method to be called when an error has occurred with the push notifications

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