Package com.fluxtion.ext.streaming.api.stream

Class ElseWrapper<T>

java.lang.Object

com.fluxtion.ext.streaming.api.stream.ElseWrapper<T>

Type Parameters:

T -

All Implemented Interfaces:

Stateful<T>, Wrapper<T>

public class ElseWrapper<T>
extends java.lang.Object
implements Wrapper<T>

Wraps a Wrapper and provides an else execution path. This is useful when wrapping a filtering node.

Author:

Greg Higgins [email protected]

Nested Class Summary

Nested classes/interfaces inherited from interface com.fluxtion.ext.streaming.api.Stateful

Stateful.StatefulNumber<S>

Field Summary

Fields inherited from interface com.fluxtion.ext.streaming.api.Wrapper

counter

Constructor Summary

Constructors

Constructor	Description
ElseWrapper(FilterWrapper<T> node)

Method Summary

Modifier and Type	Method	Description
T	event()	The wrapped node
java.lang.Class<T>	eventClass()	The type of the wrapped node
void	filterUpdated(FilterWrapper filter)
boolean	isNotifyOnChangeOnly()
Wrapper<T>	notifyOnChange(boolean notifyOnChange)	Controls the notification policy of event notification to child nodes for this stream node.
boolean	onEvent()
void	setNotifyOnChangeOnly(boolean notifyOnChangeOnly)

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.fluxtion.ext.streaming.api.Stateful

combine, deduct, setBucketCount

Methods inherited from interface com.fluxtion.ext.streaming.api.Wrapper

arg, arg, collect, console, defaultVal, filter, filter, forEach, forEach, get, group, group, id, isValidOnStart, map, map, map, map, map, map, map, map, map, map, notiferMerge, notifierOverride, publishAndReset, push, push, reset, resetAndPublish, resetNoPublish, validOnStart

Constructor Details

ElseWrapper

public ElseWrapper(FilterWrapper<T> node)

Method Details

filterUpdated

public void filterUpdated(FilterWrapper filter)

onEvent

public boolean onEvent()

isNotifyOnChangeOnly

public boolean isNotifyOnChangeOnly()

setNotifyOnChangeOnly

public void setNotifyOnChangeOnly(boolean notifyOnChangeOnly)

notifyOnChange

public Wrapper<T> notifyOnChange(boolean notifyOnChange)

Description copied from interface: Wrapper

Controls the notification policy of event notification to child nodes for this stream node. The default policy is to invoke child nodes when the return of the parent event method is true. NotifyOnChange notifies the child only when the parent node return of the previous cycle is false and this one is true.

This can be useful if a single notification of a breach is required and subsequent continued breaches are swallowed, for example this can prevent logging spamming when combined with filters.

Specified by:

notifyOnChange in interface Wrapper<T>

Parameters:

notifyOnChange - false = notify always. true = notify on change only

Returns:

The current node

event

public T event()

Description copied from interface: Wrapper

The wrapped node

Specified by:

event in interface Wrapper<T>

Returns:

the wrapped node

eventClass

public java.lang.Class<T> eventClass()

Description copied from interface: Wrapper

The type of the wrapped node

Specified by:

eventClass in interface Wrapper<T>

Returns:

wrapped node class