com.netflix.astyanax.connectionpool

Interface Operation<CL,R>

Type Parameters:

C -

R -

All Known Implementing Classes:

AbstractOperationFilter, TestOperation

public interface Operation<CL,R>

Callback interface to perform an operation on a client associated with a connection pool's connection resource

Method Summary

Methods

Modifier and Type	Method and Description
R	execute(CL client, ConnectionContext state) Execute the operation on the client object and return the results.
java.lang.String	getKeyspace() Return keyspace for this operation.
Host	getPinnedHost() Return the host to run on or null to select a host using the load blancer.
java.nio.ByteBuffer	getRowKey() Return the unique key on which the operation is performed or null if the operation is performed on multiple keys.

Method Detail

execute

R execute(CL client,
        ConnectionContext state)
          throws ConnectionException

Execute the operation on the client object and return the results.

Parameters:

client - - The client object

state - - State and metadata specific to the connection

Returns:

Throws:

ConnectionException

getRowKey

java.nio.ByteBuffer getRowKey()

Return the unique key on which the operation is performed or null if the operation is performed on multiple keys.

Returns:

getKeyspace

java.lang.String getKeyspace()

Return keyspace for this operation. Return null if using the current keyspace, or a keyspace is not needed for the operation.

Returns:

getPinnedHost

Host getPinnedHost()

Return the host to run on or null to select a host using the load blancer. Failover is disabled for this scenario.

Parameters:

host -

Returns: