org.infinispan.commands.remote
Class ClusteredGetCommand

java.lang.Object
  org.infinispan.commands.remote.ClusteredGetCommand

All Implemented Interfaces:

CacheRpcCommand, ReplicableCommand

public class ClusteredGetCommand
extends Object
implements CacheRpcCommand

Issues a clustered get call, for use primarily by the ClusteredCacheLoader. This is not a VisitableCommand and hence not passed up the CommandInterceptor chain.

Since:

4.0

Author:

Mircea.Markus@jboss.com

Field Summary

static byte

COMMAND_ID

Constructor Summary

ClusteredGetCommand()

ClusteredGetCommand(Object key, String cacheName)

Method Summary

boolean	equals(Object o)
String	getCacheName()
byte	getCommandId() Used by marshallers to convert this command into an id for streaming.
Object[]	getParameters() Used by marshallers to stream this command across a network
int	hashCode()
void	initialize(DataContainer dataContainer, CacheLoaderManager clManager)
CacheEntry	perform(InvocationContext context) Invokes a logical "get(key)" on a remote cache and returns results.
void	setParameters(int commandId, Object[] args) Used by the CommandsFactory to create a command from raw data read off a stream.
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

COMMAND_ID

public static final byte COMMAND_ID

See Also:

Constant Field Values

Constructor Detail

ClusteredGetCommand

public ClusteredGetCommand()

ClusteredGetCommand

public ClusteredGetCommand(Object key,
                           String cacheName)

Method Detail

initialize

public void initialize(DataContainer dataContainer,
                       CacheLoaderManager clManager)

perform

public CacheEntry perform(InvocationContext context)
                   throws Throwable

Invokes a logical "get(key)" on a remote cache and returns results.

Specified by:

perform in interface ReplicableCommand

Parameters:

context - invocation context, ignored.

Returns:

returns an CacheEntry or null, if no entry is found.

Throws:

Throwable - in the event of problems.

getCommandId

public byte getCommandId()

Description copied from interface: ReplicableCommand

Used by marshallers to convert this command into an id for streaming.

Specified by:

getCommandId in interface ReplicableCommand

Returns:

the method id of this command. This is compatible with pre-2.2.0 MethodCall ids.

getParameters

public Object[] getParameters()

Description copied from interface: ReplicableCommand

Used by marshallers to stream this command across a network

Specified by:

getParameters in interface ReplicableCommand

Returns:

an object array of arguments, compatible with pre-2.2.0 MethodCall args.

setParameters

public void setParameters(int commandId,
                          Object[] args)

Description copied from interface: ReplicableCommand

Used by the CommandsFactory to create a command from raw data read off a stream.

Specified by:

setParameters in interface ReplicableCommand

Parameters:

commandId - command id to set. This is usually unused but *could* be used in the event of a command having multiple IDs, such as PutKeyValueCommand.

args - object array of args

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object

getCacheName

public String getCacheName()

Specified by:

getCacheName in interface CacheRpcCommand

Returns:

the name of the cache that produced this command. This will also be the name of the cache this command is intended for.