Programmer Reference : Asynchronous Programming : EsFutureListener
EsFutureListener
Description
The listener is registered on a future and handles value/error completions
Instance State
  • nextListener: <EsFutureListener> Listeners on the same future are linked through this link.
  • result: <EsFutureImpl> The future to complete when this listener is activated.
  • state: <Integer> Which fields means what.
  • handler: <Block> Used for then/whenDone callback and error test
  • errorHandler <Block> Used for error callbacks.
Class Methods
catchError:onError:test: 
  Answer a new listener that handles errors emitted by a future
        
     Arguments:
        aResult - <EsFutureImpl>
        onError - <Block>
        onErrorTest - <Block>
     Answers:
        <EsFutureListener>
then:onValue:onError: 
  Answer a new listener that handles a future's completion value
        
     Arguments:
        aResult - <EsFutureImpl>
        onValue - <Block>
        onError - <Block>
     Answers:
        <EsFutureListener>
whenComplete:handler: 
  Answer a new listener whose handler is called when a future completes
        
     Arguments:
        aResult - <EsFutureImpl>
        aHandler - <Block>
     Answers:
        <EsFutureListener>
Instance Methods
handleError: 
No comment
handlesComplete 
No comment
handlesError 
No comment
handlesValue 
No comment
handleValue: 
No comment
handleWhenComplete 
No comment
hasErrorHandler 
  Whether this listener has an error handler.
        
     This method must only be called if the listener #handlesError
        
     Answers:
        <Boolean>
hasErrorTest 
No comment
matchesErrorTest: 
No comment
result 
  Answer the future to complete when this listener is activated
        
     Answers:
        <EsFutureImpl>
Last modified date: 12/26/2024