org.apache.camel.processor.aggregate

Class GroupedMessageAggregationStrategy

java.lang.Object

org.apache.camel.processor.aggregate.AbstractListAggregationStrategy<Message>

org.apache.camel.processor.aggregate.GroupedMessageAggregationStrategy

All Implemented Interfaces:

AggregationStrategy, CompletionAwareAggregationStrategy

public class GroupedMessageAggregationStrategy
extends AbstractListAggregationStrategy<Message>

Aggregate all Message into a single combined Exchange holding all the aggregated messages in a List of Message as the message body. This aggregation strategy can used in combination with Splitter to batch messages

Version:

Constructor Summary

Constructors

Constructor and Description
GroupedMessageAggregationStrategy()

Method Summary

Modifier and Type	Method and Description
Exchange	aggregate(Exchange oldExchange, Exchange newExchange) This method will aggregate the old and new exchange and return the result.
Message	getValue(Exchange exchange) This method is implemented by the sub-class and is called to retrieve an instance of the value that will be aggregated and forwarded to the receiving end point.

Methods inherited from class org.apache.camel.processor.aggregate.AbstractListAggregationStrategy

isStoreAsBodyOnCompletion, onCompletion

Methods inherited from class java.lang.Object

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

Constructor Detail

GroupedMessageAggregationStrategy

public GroupedMessageAggregationStrategy()

Method Detail

aggregate

public Exchange aggregate(Exchange oldExchange,
                          Exchange newExchange)

Description copied from class: AbstractListAggregationStrategy

This method will aggregate the old and new exchange and return the result.

Specified by:

aggregate in interface AggregationStrategy

Overrides:

aggregate in class AbstractListAggregationStrategy<Message>

Parameters:

oldExchange - The oldest exchange, can be null

newExchange - The newest exchange, can be null

Returns:

a composite exchange of the old and/or new exchanges

getValue

public Message getValue(Exchange exchange)

Description copied from class: AbstractListAggregationStrategy

This method is implemented by the sub-class and is called to retrieve an instance of the value that will be aggregated and forwarded to the receiving end point.

If null is returned, then the value is not added to the List.

Specified by:

getValue in class AbstractListAggregationStrategy<Message>

Parameters:

exchange - The exchange that is used to retrieve the value from

Returns:

An instance of V that is the associated value of the passed exchange