com.netflix.astyanax.connectionpool.impl

Class BagOfConnectionsConnectionPoolImpl<CL>

java.lang.Object

com.netflix.astyanax.connectionpool.impl.AbstractHostPartitionConnectionPool<CL>

com.netflix.astyanax.connectionpool.impl.BagOfConnectionsConnectionPoolImpl<CL>

Type Parameters:

CL -

All Implemented Interfaces:

ConnectionPool<CL>, SimpleHostConnectionPool.Listener<CL>

public class BagOfConnectionsConnectionPoolImpl<CL>
extends AbstractHostPartitionConnectionPool<CL>

Connection pool which puts all connections in a single queue. The load balancing is essentially random here.
The class consults Topology for all the pools and then selects a pool at random using randomIndex For AbstractHostPartitionConnectionPool.executeWithFailover(Operation, com.netflix.astyanax.retry.RetryPolicy) it just fails over to the next pool in the list of pools starting at the random index.

See Also:

AbstractHostPartitionConnectionPool} for the base class that provides the rest of the functionality, Topology} and {@link TokenPartitionedTopology} for details on where this class gets it list of host connection pools to randomly index over

Field Summary

Fields inherited from class com.netflix.astyanax.connectionpool.impl.AbstractHostPartitionConnectionPool

config, factory, hosts, monitor, partitioner, topology

Constructor Summary

Constructors

Constructor and Description
BagOfConnectionsConnectionPoolImpl(ConnectionPoolConfiguration config, ConnectionFactory<CL> factory, ConnectionPoolMonitor monitor)

Method Summary

Methods

Modifier and Type	Method and Description
<R> ExecuteWithFailover<CL,R>	newExecuteWithFailover(Operation<CL,R> op) Return a new failover context.
protected boolean	returnConnection(Connection<CL> connection)

Methods inherited from class com.netflix.astyanax.connectionpool.impl.AbstractHostPartitionConnectionPool

addHost, executeWithFailover, getActivePools, getHostPool, getPartitioner, getPools, getTopology, hasHost, isHostUp, newHostConnectionPool, onHostDown, onHostUp, rebuildPartitions, removeHost, setHosts, shutdown, start

Methods inherited from class java.lang.Object

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

Constructor Detail

BagOfConnectionsConnectionPoolImpl

public BagOfConnectionsConnectionPoolImpl(ConnectionPoolConfiguration config,
                                  ConnectionFactory<CL> factory,
                                  ConnectionPoolMonitor monitor)

Parameters:

config -

factory -

monitor -

Method Detail

returnConnection

protected boolean returnConnection(Connection<CL> connection)

newExecuteWithFailover

public <R> ExecuteWithFailover<CL,R> newExecuteWithFailover(Operation<CL,R> op)
                                                 throws ConnectionException

Description copied from class: AbstractHostPartitionConnectionPool

Return a new failover context. The context captures the connection pool state and implements the necessary failover logic.

Specified by:

newExecuteWithFailover in class AbstractHostPartitionConnectionPool<CL>

Returns:

Throws:

ConnectionException