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package com.sun.xml.ws.api.ha;

import com.sun.xml.ws.api.message.Packet;

/**
 * This class has HA information
 * 

* * This would help a loadbalancer to put the request(in case of a fail-over) * on a replica instance that has all the related data. Even if there is no * loadbalancer, a backing store could locate the information by directly * going to the correct replica instance. This would also help any part of * the runtime to know about failover case(and in-turn may invalidate * local caches). * *

* To achieve this functionality, it carries two pieces of information: *

    *
  1. key - Related {@link org.glassfish.ha.store.api.BackingStore} keys can * use this info for their HashableKey impl. First store creates this object, * and subsequent related stores use the same key. *
  2. replicaInstance - where the related info is replicated *
* *

* This can be accessed from {@link Packet} using {@link Packet#HA_INFO} * property by the runtime. This object is created typically *

    *
  • When a store happens for the first time *
  • A subsequent inbound transport creates from cookies *
  • A fail-over request stores the data to a different replica *
* * @author Jitendra Kotamraju * @since JAX-WS RI 2.2.2 */ public class HaInfo { private final String replicaInstance; private final String key; private final boolean failOver; public HaInfo(String key, String replicaInstance, boolean failOver) { this.key = key; this.replicaInstance = replicaInstance; this.failOver = failOver; } public String getReplicaInstance() { return replicaInstance; } public String getKey() { return key; } public boolean isFailOver() { return failOver; } }




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