org.infinispan.commands.write
Class ReplaceCommand

java.lang.Object
  org.infinispan.commands.read.AbstractDataCommand
      org.infinispan.commands.write.ReplaceCommand

All Implemented Interfaces:

DataCommand, ReplicableCommand, VisitableCommand, DataWriteCommand, WriteCommand

public class ReplaceCommand
extends AbstractDataCommand
implements DataWriteCommand

Since:

4.0

Author:

Mircea.Markus@jboss.com

Field Summary

static byte

METHOD_ID

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

key

Constructor Summary

ReplaceCommand()

ReplaceCommand(Object key, Object oldValue, Object newValue, long lifespanMillis, long maxIdleTimeMillis)

Method Summary

Object	acceptVisitor(InvocationContext ctx, Visitor visitor) Accept a visitor, and return the result of accepting this visitor.
boolean	equals(Object o)
byte	getCommandId() Used by marshallers to convert this command into an id for streaming.
long	getLifespanMillis()
long	getMaxIdleTimeMillis()
Object[]	getParameters() Used by marshallers to stream this command across a network
int	hashCode()
boolean	isSuccessful() Some commands may want to provide information on whether the command was successful or not.
Object	perform(InvocationContext ctx) Performs the primary function of the command.
void	setParameters(int commandId, Object[] parameters) Used by the CommandsFactory to create a command from raw data read off a stream.
String	toString()

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

getKey, lookupMvccEntry, setKey

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.infinispan.commands.DataCommand

getKey

Field Detail

METHOD_ID

public static final byte METHOD_ID

See Also:

Constant Field Values

Constructor Detail

ReplaceCommand

public ReplaceCommand()

ReplaceCommand

public ReplaceCommand(Object key,
                      Object oldValue,
                      Object newValue,
                      long lifespanMillis,
                      long maxIdleTimeMillis)

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.

Specified by:

acceptVisitor in interface VisitableCommand

Parameters:

ctx - invocation context

visitor - 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.

Specified by:

perform in interface ReplicableCommand

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.

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

Overrides:

getParameters in class AbstractDataCommand

Returns:

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

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

Overrides:

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

equals

public boolean equals(Object o)

Overrides:

equals in class AbstractDataCommand

hashCode

public int hashCode()

Overrides:

hashCode in class AbstractDataCommand

isSuccessful

public boolean isSuccessful()

Description copied from interface: WriteCommand

Some commands may want to provide information on whether the command was successful or not. This is different from a failure, which usually would result in an exception being thrown. An example is a putIfAbsent() not doing anything because the key in question was present. This would result in a isSuccessful() call returning false.

Specified by:

isSuccessful in interface WriteCommand

Returns:

true if the command completed successfully, false otherwise.

getLifespanMillis

public long getLifespanMillis()

getMaxIdleTimeMillis

public long getMaxIdleTimeMillis()

toString

public String toString()

Overrides:

toString in class AbstractDataCommand