org.infinispan.commands.read
Class GetKeyValueCommand

java.lang.Object
  extended by org.infinispan.commands.read.AbstractDataCommand
      extended by org.infinispan.commands.read.GetKeyValueCommand
All Implemented Interfaces:
DataCommand, ReplicableCommand, VisitableCommand

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)

Field Summary
static byte COMMAND_ID
           
 
Fields inherited from class org.infinispan.commands.read.AbstractDataCommand
key
 
Constructor Summary
GetKeyValueCommand()
           
GetKeyValueCommand(Object key, CacheNotifier notifier)
           
 
Method Summary
 Object acceptVisitor(InvocationContext ctx, Visitor visitor)
          Accept a visitor, and return the result of accepting this visitor.
 byte getCommandId()
          Used by marshallers to convert this command into an id for streaming.
 Object perform(InvocationContext ctx)
          Performs the primary function of the command.
 void setReturnCacheEntry(boolean returnCacheEntry)
          Will make this method to return an CacheEntry instead of the corresponding value associated with the key.
 
Methods inherited from class org.infinispan.commands.read.AbstractDataCommand
equals, getKey, getParameters, hashCode, setKey, setParameters, 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

GetKeyValueCommand

public GetKeyValueCommand(Object key,
                          CacheNotifier notifier)

GetKeyValueCommand

public GetKeyValueCommand()
Method Detail

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 context
visitor - visitor to accept
Returns:
arbitrary return value
Throws:
Throwable - in the event of problems

setReturnCacheEntry

public void setReturnCacheEntry(boolean returnCacheEntry)
Will make this method to return an CacheEntry instead of the corresponding value associated with the key.


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.

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