public class GetKeysInGroupCommand extends AbstractFlagAffectedCommand implements VisitableCommand
VisitableCommand
that fetches the keys belonging to a group.Modifier and Type | Field and Description |
---|---|
static byte |
COMMAND_ID |
flags
Constructor and Description |
---|
GetKeysInGroupCommand() |
GetKeysInGroupCommand(Set<Flag> flags,
String groupName) |
Modifier and Type | Method and Description |
---|---|
Object |
acceptVisitor(InvocationContext ctx,
Visitor visitor)
Accept a visitor, and return the result of accepting this visitor.
|
boolean |
canBlock()
If true, the command is processed asynchronously in a thread provided by an Infinispan thread pool.
|
byte |
getCommandId()
Used by marshallers to convert this command into an id for streaming.
|
String |
getGroupName() |
boolean |
ignoreCommandOnStatus(ComponentStatus status)
Similar to
VisitableCommand.shouldInvoke(InvocationContext) but evaluated by InvocationContextInterceptor . |
boolean |
isGroupOwner() |
boolean |
isReturnValueExpected()
If true, a return value will be provided when performed remotely.
|
Object |
perform(InvocationContext ctx)
Performs the primary function of the command.
|
void |
readFrom(ObjectInput input)
Reads this instance from the stream written by
ReplicableCommand.writeTo(ObjectOutput) . |
boolean |
readsExistingValues() |
GetKeysInGroupCommand |
setGroupManager(GroupManager groupManager) |
void |
setGroupOwner(boolean isGroupOwner) |
boolean |
shouldInvoke(InvocationContext ctx)
Used by the InboundInvocationHandler to determine whether the command should be invoked or not.
|
String |
toString() |
void |
writeTo(ObjectOutput output)
Writes this instance to the
ObjectOutput . |
getMetadata, getTopologyId, setMetadata, setTopologyId
getFlags, setFlags
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
alwaysReadsExistingValues
getParameters, setParameters
public static final byte COMMAND_ID
public GetKeysInGroupCommand setGroupManager(GroupManager groupManager)
public Object perform(InvocationContext ctx) throws Throwable
ReplicableCommand
perform
in interface ReplicableCommand
ctx
- invocation contextThrowable
- in the event of problems.public byte getCommandId()
ReplicableCommand
getCommandId
in interface ReplicableCommand
public void writeTo(ObjectOutput output) throws IOException
ReplicableCommand
ObjectOutput
.writeTo
in interface ReplicableCommand
output
- the stream.IOException
- if an error occurred during the I/O.public void readFrom(ObjectInput input) throws IOException, ClassNotFoundException
ReplicableCommand
ReplicableCommand.writeTo(ObjectOutput)
.readFrom
in interface ReplicableCommand
input
- the stream to read.IOException
- if an error occurred during the I/O.ClassNotFoundException
- if it tries to load an undefined class.public boolean isReturnValueExpected()
ReplicableCommand
ResponseGenerator
may choose to simply return null to save on marshalling costs.isReturnValueExpected
in interface ReplicableCommand
public boolean canBlock()
ReplicableCommand
canBlock
in interface ReplicableCommand
true
if the command can block/wait, false
otherwisepublic Object acceptVisitor(InvocationContext ctx, Visitor visitor) throws Throwable
VisitableCommand
acceptVisitor
in interface VisitableCommand
ctx
- invocation contextvisitor
- visitor to acceptThrowable
- in the event of problemspublic boolean shouldInvoke(InvocationContext ctx)
VisitableCommand
shouldInvoke
in interface VisitableCommand
public boolean ignoreCommandOnStatus(ComponentStatus status)
VisitableCommand
VisitableCommand.shouldInvoke(InvocationContext)
but evaluated by InvocationContextInterceptor
.
Commands can opt to be discarded in case the cache status is not suited (as InvalidateCommand
)ignoreCommandOnStatus
in interface VisitableCommand
public boolean readsExistingValues()
readsExistingValues
in interface VisitableCommand
true
if the command needs to read the previous values of the keys it acts on.public String getGroupName()
public boolean isGroupOwner()
public void setGroupOwner(boolean isGroupOwner)
Copyright © 2017 JBoss, a division of Red Hat. All rights reserved.