org.apache.camel.processor.aggregate

Class UseLatestAggregationStrategy

java.lang.Object

org.apache.camel.processor.aggregate.UseLatestAggregationStrategy

All Implemented Interfaces:

AggregationStrategy

public class UseLatestAggregationStrategy
extends Object
implements AggregationStrategy

An AggregationStrategy which just uses the latest exchange which is useful for status messages where old status messages have no real value. Another example is things like market data prices, where old stock prices are not that relevant, only the current price is.

Version:

Constructor Summary

Constructors

Constructor and Description
UseLatestAggregationStrategy()

Method Summary

Modifier and Type	Method and Description
Exchange	aggregate(Exchange oldExchange, Exchange newExchange) Aggregates an old and new exchange together to create a single combined exchange
protected void	propagateException(Exchange oldExchange, Exchange newExchange)
protected Exchange	propagateFailure(Exchange oldExchange, Exchange newExchange)
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

UseLatestAggregationStrategy

public UseLatestAggregationStrategy()

Method Detail

aggregate

public Exchange aggregate(Exchange oldExchange,
                          Exchange newExchange)

Description copied from interface: AggregationStrategy

Aggregates an old and new exchange together to create a single combined exchange

Specified by:

aggregate in interface AggregationStrategy

Parameters:

oldExchange - the oldest exchange (is null on first aggregation as we only have the new exchange)

newExchange - the newest exchange (can be null if there was no data possible to acquire)

Returns:

a combined composite of the two exchanges, favor returning the oldExchange whenever possible

propagateException

protected void propagateException(Exchange oldExchange,
                                  Exchange newExchange)

propagateFailure

protected Exchange propagateFailure(Exchange oldExchange,
                                    Exchange newExchange)

toString

public String toString()

Overrides:

toString in class Object