org.springframework.data.hadoop.pig
Interface PigCallback<T>

public interface PigCallback<T>

Callback interface for Pig code. To be used with PigTemplate execute method, assumably often as anonymous classes within a method implementation.

Author:

Costin Leau

Method Summary

T	doInPig(org.apache.pig.PigServer pig) Gets called by PigTemplate.execute(PigCallback) with an active PigServer.

Method Detail

doInPig

T doInPig(org.apache.pig.PigServer pig)
          throws org.apache.pig.backend.executionengine.ExecException,
                 java.io.IOException

Gets called by PigTemplate.execute(PigCallback) with an active PigServer. Does not need to care about activating or closing the PigServer, or handling exceptions.

Parameters:

pig - active pig server

Returns:

action result

Throws:

org.apache.pig.backend.executionengine.ExecException - if thrown by Pig API

java.io.IOException - if thrown by Pig API