org.jgroups.blocks

Interface RspFilter

All Known Implementing Classes:

NoMuxHandlerRspFilter

public interface RspFilter

Interface defining when a group request is done. This allows for termination of a group request based on logic implemented by the caller. Example: caller uses mode GET_FIRST plus a RspFilter implementation. Here, the request will not return (assuming timeout is 0) when the first response has been received, but when the filter passed

Author:

Bela Ban

Method Summary

Modifier and Type	Method and Description
boolean	isAcceptable(java.lang.Object response, Address sender) Determines whether a response from a given sender should be added to the response list of the request
boolean	needMoreResponses() Right after calling isAcceptable(Object, org.jgroups.Address), this method is called to see whether we are done with the request and can unblock the caller

Method Detail

isAcceptable

boolean isAcceptable(java.lang.Object response,
                     Address sender)

Determines whether a response from a given sender should be added to the response list of the request

Parameters:

response - The response (usually a serializable value)

sender - The sender of response

Returns:

True if we should add the response to the response list (RspList) of a request, otherwise false. In the latter case, we don't add the response to the response list.

needMoreResponses

boolean needMoreResponses()

Right after calling isAcceptable(Object, org.jgroups.Address), this method is called to see whether we are done with the request and can unblock the caller

Returns:

False if the request is done, otherwise true