oracle.adf.view.rich.component.rich

Class RichPoll

java.lang.Object

javax.faces.component.UIComponent

org.apache.myfaces.trinidad.component.UIXComponent

org.apache.myfaces.trinidad.component.UIXComponentBase

org.apache.myfaces.trinidad.component.UIXPoll

oracle.adf.view.rich.component.rich.RichPoll

All Implemented Interfaces:

EventListener, javax.faces.component.behavior.ClientBehaviorHolder, javax.faces.component.PartialStateHolder, javax.faces.component.StateHolder, javax.faces.component.TransientStateHolder, javax.faces.event.ComponentSystemEventListener, javax.faces.event.FacesListener, javax.faces.event.SystemEventListenerHolder

public class RichPoll
extends org.apache.myfaces.trinidad.component.UIXPoll
implements javax.faces.component.behavior.ClientBehaviorHolder

The poll component delivers PollEvents to the server at fixed intervals. This can be used either for steady updates, or to deliver a heartbeat to keep a user logged in, or to warn a user about to be logged out (for some examples).

Polling can be disabled by setting interval attribute to a negative value.
Polling can be disabled globally at application level when in automation mode based on the value of the following property within adf-faces-config element of adf-config.xml. The default value is 'on'.

 <automation-testing-config>
   <asynchronous-updates>onDemand<asynchronous-updates>
 </automation-testing-config>
             

The same can be achieved using the corresponding System Property -Dautomation-testing-config.asynchronous-updates=onDemand

Note: Any poll event that got queued before polling is disabled (e.g. using setInterval(-1)) will not be thrown away and will be treated as valid event according to the behavior of polling.

Events:

Type	Phases	Description
org.apache.myfaces.trinidad.event.PollEvent	Apply Request Values Invoke Application	Event delivered when the poll component polls the server.
org.apache.myfaces.trinidad.event.AttributeChangeEvent	Invoke Application Apply Request Values	Event delivered to describe an attribute change. Attribute change events are not delivered for any programmatic change to a property. They are only delivered when a renderer changes a property without the application's specific request. An example of an attribute change event might include the width of a column that supported client-side resizing.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.myfaces.trinidad.component.UIXComponentBase

org.apache.myfaces.trinidad.component.UIXComponentBase.ComponentSystemEventListenerWrapper

Field Summary

Fields

Modifier and Type	Field and Description
static org.apache.myfaces.trinidad.bean.PropertyKey	CLIENT_ATTRIBUTES_KEY
static org.apache.myfaces.trinidad.bean.PropertyKey	CLIENT_COMPONENT_KEY
static org.apache.myfaces.trinidad.bean.PropertyKey	CLIENT_LISTENERS_KEY
static String	COMPONENT_FAMILY
static String	COMPONENT_TYPE
static org.apache.myfaces.trinidad.bean.PropertyKey	CUSTOMIZATION_ID_KEY Deprecated.
static org.apache.myfaces.trinidad.bean.PropertyKey	INTERVAL_KEY
static org.apache.myfaces.trinidad.bean.PropertyKey	PARTIAL_TRIGGERS_KEY
static org.apache.myfaces.trinidad.bean.PropertyKey	TIMEOUT_KEY
static org.apache.myfaces.trinidad.bean.FacesBean.Type	TYPE

Fields inherited from class org.apache.myfaces.trinidad.component.UIXPoll

IMMEDIATE_KEY, POLL_LISTENER_KEY

Fields inherited from class org.apache.myfaces.trinidad.component.UIXComponentBase

BINDING_KEY, ID_KEY, RENDERED_KEY, RENDERER_TYPE_KEY, TRANSIENT_KEY

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

Constructors

Modifier	Constructor and Description
	RichPoll() Construct an instance of the RichPoll.
protected	RichPoll(String rendererType) Construct an instance of the RichPoll.

Method Summary

Methods

Modifier and Type	Method and Description
void	addClientBehavior(String eventName, javax.faces.component.behavior.ClientBehavior behavior)
protected org.apache.myfaces.trinidad.bean.FacesBean.Type	getBeanType()
Set	getClientAttributes() Gets a set of client attribute names.
Map<String,List<javax.faces.component.behavior.ClientBehavior>>	getClientBehaviors()
ClientListenerSet	getClientListeners() Gets a set of client listeners.
String	getCustomizationId() Deprecated. This attribute is deprecated. This attribute will be removed in the next release. Use the 'id' attribute instead.
String	getDefaultEventName()
Collection<String>	getEventNames()
String	getFamily()
int	getInterval() Gets the time between poll events, in milliseconds.
String[]	getPartialTriggers() Gets the IDs of the components that should trigger a partial update.
int	getTimeout() Gets If polling is used to update a page, there is a high chance that a page will never timeout, since the client keeps sending poll requests to the server.
boolean	isClientComponent() Gets whether a client-side component will be generated.
void	setClientAttributes(Set clientAttributes) Sets a set of client attribute names.
void	setClientComponent(boolean clientComponent) Sets whether a client-side component will be generated.
void	setClientListeners(ClientListenerSet clientListeners) Sets a set of client listeners.
void	setCustomizationId(String customizationId) Deprecated. This attribute is deprecated. This attribute will be removed in the next release. Use the 'id' attribute instead.
void	setInterval(int interval) Sets the time between poll events, in milliseconds.
void	setPartialTriggers(String[] partialTriggers) Sets the IDs of the components that should trigger a partial update.
void	setTimeout(int timeout) Sets If polling is used to update a page, there is a high chance that a page will never timeout, since the client keeps sending poll requests to the server.

Methods inherited from class org.apache.myfaces.trinidad.component.UIXPoll

addPollListener, broadcast, getPollListener, getPollListeners, isImmediate, queueEvent, removePollListener, setImmediate, setPollListener, setPollListener

Methods inherited from class org.apache.myfaces.trinidad.component.UIXComponentBase

adaptMethodBinding, addAttributeChange, addAttributeChangeListener, addComponentChange, addComponentChange, addComponentChangeFilter, addFacesListener, broadcastToMethodBinding, broadcastToMethodExpression, clearCachedClientIds, clearInitialState, createFacesBean, decode, decodeChildren, decodeChildrenImpl, encodeBegin, encodeChildren, encodeEnd, findComponent, getAttributeChangeListener, getAttributeChangeListeners, getAttributes, getBooleanProperty, getChildCount, getChildren, getClientId, getComponentChangeFilters, getContainerClientId, getFacesBean, getFacesContext, getFacesListeners, getFacet, getFacetCount, getFacetNames, getFacets, getFacetsAndChildren, getId, getIntProperty, getLifecycleRenderer, getListenersForEventClass, getParent, getProperty, getPropertyKey, getRenderedFacetsAndChildren, getRenderer, getRendererType, getRendersChildren, getValueBinding, getValueExpression, initialStateMarked, invokeOnChildrenComponents, invokeOnComponent, invokeOnNamingContainerComponent, isRendered, isTransient, markInitialState, processDecodes, processRestoreState, processSaveState, processUpdates, processValidators, removeAttributeChangeListener, removeComponentChangeFilter, removeFacesListener, restoreState, satisfiesPartialTrigger, saveState, setAttributeChangeListener, setAttributeChangeListener, setBooleanProperty, setId, setIntProperty, setParent, setProperty, setRendered, setRendererType, setTransient, setupFlattenedChildrenContext, setupFlattenedContext, setValueBinding, setValueExpression, subscribeToEvent, tearDownFlattenedChildrenContext, tearDownFlattenedContext, toString, unsubscribeFromEvent, updateChildren, updateChildrenImpl, validateChildren, validateChildrenImpl

Methods inherited from class org.apache.myfaces.trinidad.component.UIXComponent

addPartialTarget, broadcastInContext, clearCachedClientIds, defaultGetRenderedFacetsAndChildren, encodeFlattenedChild, encodeFlattenedChildren, getLogicalParent, getLogicalParent, getStateHelper, getStateHelper, isVisitable, partialEncodeVisit, processFlattenedChildren, processFlattenedChildren, processFlattenedChildren, processFlattenedChildren, setPartialTarget, setupChildrenEncodingContext, setupChildrenVisitingContext, setupEncodingContext, setUpEncodingContext, setupVisitingContext, tearDownChildrenEncodingContext, tearDownChildrenVisitingContext, tearDownEncodingContext, tearDownVisitingContext, visitAllChildren, visitChildren, visitChildren, visitTree, visitTree

Methods inherited from class javax.faces.component.UIComponent

encodeAll, getClientId, getCompositeComponentParent, getContainerClientId, getCurrentComponent, getCurrentCompositeComponent, getNamingContainer, getPassThroughAttributes, getPassThroughAttributes, getResourceBundleMap, getTransientStateHelper, getTransientStateHelper, isCompositeComponent, isInView, popComponentFromEL, processEvent, pushComponentToEL, restoreTransientState, saveTransientState, setInView

Methods inherited from class java.lang.Object

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

Field Detail

TYPE

public static final org.apache.myfaces.trinidad.bean.FacesBean.Type TYPE

CUSTOMIZATION_ID_KEY

@Deprecated
public static final org.apache.myfaces.trinidad.bean.PropertyKey CUSTOMIZATION_ID_KEY

Deprecated.

CLIENT_COMPONENT_KEY

public static final org.apache.myfaces.trinidad.bean.PropertyKey CLIENT_COMPONENT_KEY

CLIENT_ATTRIBUTES_KEY

public static final org.apache.myfaces.trinidad.bean.PropertyKey CLIENT_ATTRIBUTES_KEY

PARTIAL_TRIGGERS_KEY

public static final org.apache.myfaces.trinidad.bean.PropertyKey PARTIAL_TRIGGERS_KEY

CLIENT_LISTENERS_KEY

public static final org.apache.myfaces.trinidad.bean.PropertyKey CLIENT_LISTENERS_KEY

INTERVAL_KEY

public static final org.apache.myfaces.trinidad.bean.PropertyKey INTERVAL_KEY

TIMEOUT_KEY

public static final org.apache.myfaces.trinidad.bean.PropertyKey TIMEOUT_KEY

COMPONENT_FAMILY

public static final String COMPONENT_FAMILY

See Also:

Constant Field Values

COMPONENT_TYPE

public static final String COMPONENT_TYPE

See Also:

Constant Field Values

Constructor Detail

RichPoll

public RichPoll()

Construct an instance of the RichPoll.

RichPoll

protected RichPoll(String rendererType)

Construct an instance of the RichPoll.

Method Detail

getCustomizationId

@Deprecated
public final String getCustomizationId()

Deprecated. This attribute is deprecated. This attribute will be removed in the next release. Use the 'id' attribute instead.

Gets This attribute is deprecated. The 'id' attribute should be used when applying persistent customizations. This attribute will be removed in the next release.

Returns:

the new customizationId value

setCustomizationId

@Deprecated
public final void setCustomizationId(String customizationId)

Deprecated. This attribute is deprecated. This attribute will be removed in the next release. Use the 'id' attribute instead.

Sets This attribute is deprecated. The 'id' attribute should be used when applying persistent customizations. This attribute will be removed in the next release.

Parameters:

customizationId - the new customizationId value

isClientComponent

public final boolean isClientComponent()

Gets whether a client-side component will be generated. A component may be generated whether or not this flag is set, but if client Javascript requires the component object, this must be set to true to guarantee the component's presence. Client component objects that are generated today by default may not be present in the future; setting this flag is the only way to guarantee a component's presence, and clients cannot rely on implicit behavior. However, there is a performance cost to setting this flag, so clients should avoid turning on client components unless absolutely necessary.
For the components outputText and outputFormatted, setting the clientComponent to true will render id attribute for the html DOM. This ID attribute can alternatively be generated by setting oracle.adf.view.rich.SUPPRESS_IDS to "auto" in web.xml.

Returns:

the new clientComponent value

setClientComponent

public final void setClientComponent(boolean clientComponent)

Sets whether a client-side component will be generated. A component may be generated whether or not this flag is set, but if client Javascript requires the component object, this must be set to true to guarantee the component's presence. Client component objects that are generated today by default may not be present in the future; setting this flag is the only way to guarantee a component's presence, and clients cannot rely on implicit behavior. However, there is a performance cost to setting this flag, so clients should avoid turning on client components unless absolutely necessary.
For the components outputText and outputFormatted, setting the clientComponent to true will render id attribute for the html DOM. This ID attribute can alternatively be generated by setting oracle.adf.view.rich.SUPPRESS_IDS to "auto" in web.xml.

Parameters:

clientComponent - the new clientComponent value

getClientAttributes

public final Set getClientAttributes()

Gets a set of client attribute names.

Returns:

the new clientAttributes value

setClientAttributes

public final void setClientAttributes(Set clientAttributes)

Sets a set of client attribute names.

Parameters:

clientAttributes - the new clientAttributes value

getPartialTriggers

public final String[] getPartialTriggers()

Gets the IDs of the components that should trigger a partial update. This component will listen on the trigger components. If one of the trigger components receives an event that will cause it to update in some way, this component will request to be updated too. Identifiers are relative to the source component (this component), and must account for NamingContainers. If your component is already inside of a naming container, you can use a single colon to start the search from the root of the page, or multiple colons to move up through the NamingContainers - "::" will pop out of the component's naming container (or itself if the component is a naming container) and begin the search from there, ":::" will pop out of two naming containers (including itself if the component is a naming container) and begin the search from there, etc.

Returns:

the new partialTriggers value

setPartialTriggers

public final void setPartialTriggers(String[] partialTriggers)

Sets the IDs of the components that should trigger a partial update. This component will listen on the trigger components. If one of the trigger components receives an event that will cause it to update in some way, this component will request to be updated too. Identifiers are relative to the source component (this component), and must account for NamingContainers. If your component is already inside of a naming container, you can use a single colon to start the search from the root of the page, or multiple colons to move up through the NamingContainers - "::" will pop out of the component's naming container (or itself if the component is a naming container) and begin the search from there, ":::" will pop out of two naming containers (including itself if the component is a naming container) and begin the search from there, etc.

Parameters:

partialTriggers - the new partialTriggers value

getClientListeners

public final ClientListenerSet getClientListeners()

Gets a set of client listeners.

Returns:

the new clientListeners value

setClientListeners

public final void setClientListeners(ClientListenerSet clientListeners)

Sets a set of client listeners.

Parameters:

clientListeners - the new clientListeners value

getInterval

public final int getInterval()

Gets the time between poll events, in milliseconds. If the value is set to less than zero, polling will be disabled.

Returns:

the new interval value

setInterval

public final void setInterval(int interval)

Sets the time between poll events, in milliseconds. If the value is set to less than zero, polling will be disabled.

Parameters:

interval - the new interval value

getTimeout

public final int getTimeout()

Gets If polling is used to update a page, there is a high chance that a page will never timeout, since the client keeps sending poll requests to the server. However, if we notice user inactivity after a certain amount of time we stop polling to give the application a chance to time out. By default the framework will use the value which has been configured in the web.xml, for the "oracle.adf.view.rich.poll.TIMEOUT" parameter. If there is also no value defined in the web.xml, we will use 10 minutes as the default value. However we allow page authors to override the value that is specified in web.xml on a per page base. The timeout property takes the number of milliseconds after which polling will stop, if there was no activity by the user, e.g. via keyboard or mouse. If there are multiple poll components on a page we take the maximum of their timeout values. Note that polling will restart if user activity is detected again after timeout but before the session has expired. If this value is set to -1, the page will never timeout.

Returns:

the new timeout value

setTimeout

public final void setTimeout(int timeout)

Sets If polling is used to update a page, there is a high chance that a page will never timeout, since the client keeps sending poll requests to the server. However, if we notice user inactivity after a certain amount of time we stop polling to give the application a chance to time out. By default the framework will use the value which has been configured in the web.xml, for the "oracle.adf.view.rich.poll.TIMEOUT" parameter. If there is also no value defined in the web.xml, we will use 10 minutes as the default value. However we allow page authors to override the value that is specified in web.xml on a per page base. The timeout property takes the number of milliseconds after which polling will stop, if there was no activity by the user, e.g. via keyboard or mouse. If there are multiple poll components on a page we take the maximum of their timeout values. Note that polling will restart if user activity is detected again after timeout but before the session has expired. If this value is set to -1, the page will never timeout.

Parameters:

timeout - the new timeout value

getDefaultEventName

public String getDefaultEventName()

Specified by:

getDefaultEventName in interface javax.faces.component.behavior.ClientBehaviorHolder

Overrides:

getDefaultEventName in class org.apache.myfaces.trinidad.component.UIXComponentBase

getEventNames

public Collection<String> getEventNames()

Specified by:

getEventNames in interface javax.faces.component.behavior.ClientBehaviorHolder

getClientBehaviors

public Map<String,List<javax.faces.component.behavior.ClientBehavior>> getClientBehaviors()

Specified by:

getClientBehaviors in interface javax.faces.component.behavior.ClientBehaviorHolder

Overrides:

getClientBehaviors in class org.apache.myfaces.trinidad.component.UIXComponentBase

addClientBehavior

public void addClientBehavior(String eventName,
                     javax.faces.component.behavior.ClientBehavior behavior)

Specified by:

addClientBehavior in interface javax.faces.component.behavior.ClientBehaviorHolder

Overrides:

addClientBehavior in class org.apache.myfaces.trinidad.component.UIXComponentBase

getFamily

public String getFamily()

Overrides:

getFamily in class org.apache.myfaces.trinidad.component.UIXPoll

getBeanType

protected org.apache.myfaces.trinidad.bean.FacesBean.Type getBeanType()

Overrides:

getBeanType in class org.apache.myfaces.trinidad.component.UIXPoll