Package org.elasticsearch.action
Class NotifyOnceListener<Response>
- java.lang.Object
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- org.elasticsearch.action.NotifyOnceListener<Response>
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- All Implemented Interfaces:
ActionListener<Response>
public abstract class NotifyOnceListener<Response> extends java.lang.Object implements ActionListener<Response>
A listener that ensures that only one of onResponse or onFailure is called. And the method the is called is only called once. Subclasses should implement notification logic with innerOnResponse and innerOnFailure.
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Constructor Summary
Constructors Constructor Description NotifyOnceListener()
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Method Summary
Modifier and Type Method Description protected abstract void
innerOnFailure(java.lang.Exception e)
protected abstract void
innerOnResponse(Response response)
void
onFailure(java.lang.Exception e)
A failure caused by an exception at some phase of the task.void
onResponse(Response response)
Handle action response.
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Method Detail
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innerOnResponse
protected abstract void innerOnResponse(Response response)
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innerOnFailure
protected abstract void innerOnFailure(java.lang.Exception e)
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onResponse
public final void onResponse(Response response)
Description copied from interface:ActionListener
Handle action response. This response may constitute a failure or a success but it is up to the listener to make that decision.- Specified by:
onResponse
in interfaceActionListener<Response>
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onFailure
public final void onFailure(java.lang.Exception e)
Description copied from interface:ActionListener
A failure caused by an exception at some phase of the task.- Specified by:
onFailure
in interfaceActionListener<Response>
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