public class ReplaceCommand extends AbstractDataWriteCommand
Modifier and Type | Field and Description |
---|---|
static byte |
COMMAND_ID |
key
flags
Constructor and Description |
---|
ReplaceCommand() |
ReplaceCommand(Object key,
Object oldValue,
Object newValue,
long lifespanMillis,
long maxIdleTimeMillis,
Set<Flag> flags) |
Modifier and Type | Method and Description |
---|---|
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 |
getNewValue() |
Object |
getOldValue() |
Object[] |
getParameters()
Used by marshallers to stream this command across a network
|
int |
hashCode() |
boolean |
isConditional()
Certain commands only work based on a certain condition or state of the cache.
|
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 |
setNewValue(Object newValue) |
void |
setOldValue(Object oldValue) |
void |
setParameters(int commandId,
Object[] parameters)
Used by the
CommandsFactory to create a command from raw data read off a stream. |
String |
toString() |
getAffectedKeys, isReturnValueExpected
getKey, ignoreCommandOnStatus, setKey, shouldInvoke
getFlags, hasFlag, setFlags
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
getFlags, hasFlag, setFlags
getKey
ignoreCommandOnStatus, shouldInvoke
public static final byte COMMAND_ID
public Object acceptVisitor(InvocationContext ctx, Visitor visitor) throws Throwable
VisitableCommand
ctx
- invocation contextvisitor
- visitor to acceptThrowable
- in the event of problemspublic Object perform(InvocationContext ctx) throws Throwable
ReplicableCommand
ctx
- invocation contextThrowable
- in the event of problems.public byte getCommandId()
ReplicableCommand
public Object[] getParameters()
ReplicableCommand
getParameters
in interface ReplicableCommand
getParameters
in class AbstractDataCommand
public void setParameters(int commandId, Object[] parameters)
ReplicableCommand
CommandsFactory
to create a command from raw data read off a stream.setParameters
in interface ReplicableCommand
setParameters
in class AbstractDataCommand
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 argspublic boolean equals(Object o)
equals
in class AbstractDataCommand
public int hashCode()
hashCode
in class AbstractDataCommand
public boolean isSuccessful()
WriteCommand
public boolean isConditional()
WriteCommand
ConcurrentMap.putIfAbsent(Object, Object)
only does anything if a condition is met, i.e., the entry in
question is not already present. This method tests whether the command in question is conditional or not.public long getLifespanMillis()
public long getMaxIdleTimeMillis()
public Object getOldValue()
public void setOldValue(Object oldValue)
public Object getNewValue()
public void setNewValue(Object newValue)
public String toString()
toString
in class AbstractDataCommand
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