org.dspace.search

Class SearchConsumer

java.lang.Object

org.dspace.search.SearchConsumer

All Implemented Interfaces:

Consumer

public class SearchConsumer
extends java.lang.Object
implements Consumer

Class for updating search indices from content events.

Version:

$Revision$

Constructor Summary

Constructors

Constructor and Description
SearchConsumer()

Method Summary

Methods

Modifier and Type	Method and Description
void	consume(Context ctx, Event event) Consume a content event -- just build the sets of objects to add (new) to the index, update, and delete.
void	end(Context ctx) Process sets of objects to add, update, and delete in index.
void	finish(Context ctx) Finish - free any allocated resources.
void	initialize() Initialize - allocate any resources required to operate.

Methods inherited from class java.lang.Object

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

Constructor Detail

SearchConsumer

public SearchConsumer()

Method Detail

initialize

public void initialize()
                throws java.lang.Exception

Description copied from interface: Consumer

Initialize - allocate any resources required to operate. This may include initializing any pooled JMS resources. Called ONCE when created by the dispatcher pool. This should be used to set up expensive resources that will remain for the lifetime of the consumer.

Specified by:

initialize in interface Consumer

Throws:

java.lang.Exception

consume

public void consume(Context ctx,
           Event event)
             throws java.lang.Exception

Consume a content event -- just build the sets of objects to add (new) to the index, update, and delete.

Specified by:

consume in interface Consumer

Parameters:

ctx - DSpace context

event - Content event

Throws:

java.lang.Exception

end

public void end(Context ctx)
         throws java.lang.Exception

Process sets of objects to add, update, and delete in index. Correct for interactions between the sets -- e.g. objects which were deleted do not need to be added or updated, new objects don't also need an update, etc.

Specified by:

end in interface Consumer

Throws:

java.lang.Exception

finish

public void finish(Context ctx)
            throws java.lang.Exception

Description copied from interface: Consumer

Finish - free any allocated resources. Called when consumer (via it's parent dispatcher) is going to be destroyed by the dispatcher pool.

Specified by:

finish in interface Consumer

Throws:

java.lang.Exception