org.infinispan.commands
Interface VisitableCommand

All Superinterfaces:

ReplicableCommand

All Known Subinterfaces:

DataCommand, DataWriteCommand, FlagAffectedCommand, TotalOrderPrepareCommand, TransactionBoundaryCommand, WriteCommand

All Known Implementing Classes:

AbstractDataCommand, AbstractDataWriteCommand, AbstractFlagAffectedCommand, AbstractTransactionBoundaryCommand, ApplyDeltaCommand, ClearCommand, ClusteredGetCommand, CommitCommand, DistributedExecuteCommand, EntrySetCommand, EvictCommand, GetKeyValueCommand, InvalidateCommand, InvalidateL1Command, KeySetCommand, LockControlCommand, PrepareCommand, PutKeyValueCommand, PutMapCommand, RemoveCommand, ReplaceCommand, RollbackCommand, SizeCommand, TotalOrderCommitCommand, TotalOrderNonVersionedPrepareCommand, TotalOrderRollbackCommand, TotalOrderVersionedCommitCommand, TotalOrderVersionedPrepareCommand, ValuesCommand, VersionedCommitCommand, VersionedPrepareCommand

public interface VisitableCommand
extends ReplicableCommand

A type of command that can accept Visitors, such as CommandInterceptors.

Since:

4.0

Author:

Manik Surtani (manik@jboss.org)

Method Summary

Object	acceptVisitor(InvocationContext ctx, Visitor visitor) Accept a visitor, and return the result of accepting this visitor.
boolean	ignoreCommandOnStatus(ComponentStatus status) Similar to shouldInvoke(InvocationContext) but evaluated by InvocationContextInterceptor.
boolean	shouldInvoke(InvocationContext ctx) Used by the InboundInvocationHandler to determine whether the command should be invoked or not.

Methods inherited from interface org.infinispan.commands.ReplicableCommand

canBlock, getCommandId, getParameters, isReturnValueExpected, perform, setParameters

Method Detail

acceptVisitor

Object acceptVisitor(InvocationContext ctx,
                     Visitor visitor)
                     throws Throwable

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

shouldInvoke

boolean shouldInvoke(InvocationContext ctx)

Used by the InboundInvocationHandler to determine whether the command should be invoked or not.

Returns:

true if the command should be invoked, false otherwise.

ignoreCommandOnStatus

boolean ignoreCommandOnStatus(ComponentStatus status)

Similar to shouldInvoke(InvocationContext) but evaluated by InvocationContextInterceptor. Commands can opt to be discarded in case the cache status is not suited (as InvalidateCommand)

Returns:

true if the command should NOT be invoked.