org.infinispan.commands.read

Class GetKeyValueCommand

java.lang.Object

org.infinispan.commands.read.AbstractDataCommand

org.infinispan.commands.read.GetKeyValueCommand

All Implemented Interfaces:

DataCommand, FlagAffectedCommand, ReplicableCommand, SegmentSpecificCommand, TopologyAffectedCommand, 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)

Nested Class Summary

Nested classes/interfaces inherited from interface org.infinispan.commands.VisitableCommand

VisitableCommand.LoadType

Field Summary

Fields

Modifier and Type	Field and Description
static byte	COMMAND_ID

Fields inherited from class org.infinispan.commands.read.AbstractDataCommand

key, segment

Constructor Summary

Constructors

Constructor and Description
GetKeyValueCommand()
GetKeyValueCommand(Object key, int segment, long flagsBitSet)

Method Summary

Modifier and Type	Method and Description
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.
VisitableCommand.LoadType	loadType()
void	readFrom(ObjectInput input) Reads this instance from the stream written by ReplicableCommand.writeTo(ObjectOutput).
String	toString()
void	writeTo(ObjectOutput output) Writes this instance to the ObjectOutput.

Methods inherited from class org.infinispan.commands.read.AbstractDataCommand

equals, getFlagsBitSet, getKey, getSegment, getTopologyId, hashCode, isReturnValueExpected, printFlags, setFlagsBitSet, setKey, setTopologyId

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.infinispan.commands.FlagAffectedCommand

addFlag, addFlags, addFlags, getFlags, hasAllFlags, hasAnyFlag, hasFlag, setFlags

Methods inherited from interface org.infinispan.commands.VisitableCommand

init

Methods inherited from interface org.infinispan.commands.ReplicableCommand

canBlock, invoke, invokeAsync, isSuccessful, setOrigin

Methods inherited from interface org.infinispan.commands.SegmentSpecificCommand

extractSegment

Field Detail

COMMAND_ID

public static final byte COMMAND_ID

See Also:

Constant Field Values

Constructor Detail

GetKeyValueCommand

public GetKeyValueCommand(Object key,
                          int segment,
                          long flagsBitSet)

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

loadType

public VisitableCommand.LoadType loadType()

Returns:

Nodes on which the command needs to read the previous values of the keys it acts on.

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.

writeTo

public void writeTo(ObjectOutput output)
             throws IOException

Description copied from interface: ReplicableCommand

Writes this instance to the ObjectOutput.

Parameters:

output - the stream.

Throws:

IOException - if an error occurred during the I/O.

readFrom

public void readFrom(ObjectInput input)
              throws IOException,
                     ClassNotFoundException

Description copied from interface: ReplicableCommand

Reads this instance from the stream written by ReplicableCommand.writeTo(ObjectOutput).

Parameters:

input - the stream to read.

Throws:

IOException - if an error occurred during the I/O.

ClassNotFoundException - if it tries to load an undefined class.

toString

public String toString()

Overrides:

toString in class AbstractDataCommand