org.apache.cassandra.locator

Class ReplicaPlan.ForWrite<E extends Endpoints<E>>

java.lang.Object

org.apache.cassandra.locator.ReplicaPlan<E>

org.apache.cassandra.locator.ReplicaPlan.ForWrite<E>

Direct Known Subclasses:

ReplicaPlan.ForPaxosWrite, ReplicaPlan.ForTokenWrite

Enclosing class:

ReplicaPlan<E extends Endpoints<E>>

public abstract static class ReplicaPlan.ForWrite<E extends Endpoints<E>>
extends ReplicaPlan<E>

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.cassandra.locator.ReplicaPlan

ReplicaPlan.ForPaxosWrite, ReplicaPlan.ForRangeRead, ReplicaPlan.ForRead<E extends Endpoints<E>>, ReplicaPlan.ForTokenRead, ReplicaPlan.ForTokenWrite, ReplicaPlan.ForWrite<E extends Endpoints<E>>, ReplicaPlan.Shared<E extends Endpoints<E>,P extends ReplicaPlan<E>>, ReplicaPlan.SharedForRangeRead, ReplicaPlan.SharedForTokenRead

Field Summary

Fields inherited from class org.apache.cassandra.locator.ReplicaPlan

consistencyLevel, keyspace, replicationStrategy

Method Summary

Modifier and Type	Method and Description
int	blockFor()
boolean	isAlive(Replica replica) Test liveness, consistent with the upfront analysis done for this operation (i.e.
E	live() The live replicas present in liveAndDown, usually derived from FailureDetector.isReplicaAlive
E	liveAndDown() Replicas that can participate in the write - this always includes all nodes (pending and natural) in all DCs, except for paxos LOCAL_QUORUM (which is local DC only)
E	liveUncontacted() Calculate which live endpoints we could have contacted, but chose not to
Replica	lookup(InetAddressAndPort endpoint)
E	pending() Replicas that a region of the ring is moving to; not yet ready to serve reads, but should receive writes
java.lang.String	toString()

Methods inherited from class org.apache.cassandra.locator.ReplicaPlan

consistencyLevel, contacts, contacts, keyspace, replicationStrategy, shared, shared

Methods inherited from class java.lang.Object

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

Method Detail

blockFor

public int blockFor()

Specified by:

blockFor in class ReplicaPlan<E extends Endpoints<E>>

pending

public E pending()

Replicas that a region of the ring is moving to; not yet ready to serve reads, but should receive writes

liveAndDown

public E liveAndDown()

Replicas that can participate in the write - this always includes all nodes (pending and natural) in all DCs, except for paxos LOCAL_QUORUM (which is local DC only)

live

public E live()

The live replicas present in liveAndDown, usually derived from FailureDetector.isReplicaAlive

liveUncontacted

public E liveUncontacted()

Calculate which live endpoints we could have contacted, but chose not to

isAlive

public boolean isAlive(Replica replica)

Test liveness, consistent with the upfront analysis done for this operation (i.e. test membership of live())

lookup

public Replica lookup(InetAddressAndPort endpoint)

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object