org.apache.activemq.broker.region.policy
Class OldestMessageWithLowestPriorityEvictionStrategy

java.lang.Object
  org.apache.activemq.broker.region.policy.MessageEvictionStrategySupport
      org.apache.activemq.broker.region.policy.OldestMessageWithLowestPriorityEvictionStrategy

All Implemented Interfaces:

MessageEvictionStrategy

public class OldestMessageWithLowestPriorityEvictionStrategy
extends MessageEvictionStrategySupport

An eviction strategy which evicts the oldest message with the lowest priority first.

Constructor Summary

OldestMessageWithLowestPriorityEvictionStrategy()

Method Summary

MessageReference[]

evictMessages(java.util.LinkedList messages) Find the message reference in the given list with oldest messages at the front and newer messages at the end

Methods inherited from class org.apache.activemq.broker.region.policy.MessageEvictionStrategySupport

getEvictExpiredMessagesHighWatermark, setEvictExpiredMessagesHighWatermark

Methods inherited from class java.lang.Object

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

Constructor Detail

OldestMessageWithLowestPriorityEvictionStrategy

public OldestMessageWithLowestPriorityEvictionStrategy()

Method Detail

evictMessages

public MessageReference[] evictMessages(java.util.LinkedList messages)
                                 throws java.io.IOException

Description copied from interface: MessageEvictionStrategy

Find the message reference in the given list with oldest messages at the front and newer messages at the end

Returns:

the message that has been evicted.

Throws:

java.io.IOException - if an exception occurs such as reading a message content (but should not ever happen as usually all the messages will be in RAM when this method is called).