org.infinispan.commands.read
Class GetKeyValueCommand
java.lang.Object
org.infinispan.commands.AbstractFlagAffectedCommand
org.infinispan.commands.read.AbstractDataCommand
org.infinispan.commands.read.GetKeyValueCommand
- All Implemented Interfaces:
- DataCommand, FlagAffectedCommand, ReplicableCommand, TopologyAffectedCommand, VisitableCommand
- Direct Known Subclasses:
- GetCacheEntryCommand
public class GetKeyValueCommand
- extends AbstractDataCommand
Implements functionality defined by Map.get(Object)
and
Map.containsKey(Object)
operations
- Since:
- 4.0
- Author:
- Manik Surtani (manik@jboss.org)
COMMAND_ID
public static final byte COMMAND_ID
- See Also:
- Constant Field Values
GetKeyValueCommand
public GetKeyValueCommand(Object key,
Set<Flag> flags)
GetKeyValueCommand
public GetKeyValueCommand()
acceptVisitor
public Object acceptVisitor(InvocationContext ctx,
Visitor visitor)
throws Throwable
- Description copied from interface:
VisitableCommand
- Accept a visitor, and return the result of accepting this visitor.
- Parameters:
ctx
- invocation contextvisitor
- visitor to accept
- Returns:
- arbitrary return value
- Throws:
Throwable
- in the event of problems
perform
public Object perform(InvocationContext ctx)
throws Throwable
- Description copied from interface:
ReplicableCommand
- Performs the primary function of the command. Please see specific implementation classes for details on what is
performed as well as return types. Important: this method will be invoked at the end of interceptors chain.
It should never be called directly from a custom interceptor.
- Parameters:
ctx
- invocation context
- Returns:
- arbitrary return value generated by performing this command
- 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.
- Returns:
- the method id of this command. This is compatible with pre-2.2.0 MethodCall ids.
setParameters
public void setParameters(int commandId,
Object[] parameters)
- 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
- Specified by:
setParameters
in class AbstractDataCommand
- 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
.parameters
- object array of args
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
- Specified by:
getParameters
in class AbstractDataCommand
- Returns:
- an object array of arguments, compatible with pre-2.2.0 MethodCall args.
setRemotelyFetchedValue
public void setRemotelyFetchedValue(InternalCacheEntry remotelyFetchedValue)
- See Also:
getRemotelyFetchedValue()
getRemotelyFetchedValue
public InternalCacheEntry getRemotelyFetchedValue()
- If the cache needs to go remotely in order to obtain the value associated to this key, then the remote value
is stored in this field.
Copyright © 2013 JBoss, a division of Red Hat. All Rights Reserved.