org.jboss.cache.commands.write
Class ClearDataCommand
java.lang.Object
org.jboss.cache.commands.read.AbstractDataCommand
org.jboss.cache.commands.write.AbstractVersionedDataCommand
org.jboss.cache.commands.write.ClearDataCommand
- All Implemented Interfaces:
- Cloneable, DataCommand, ReplicableCommand, ReversibleCommand, VersionedDataCommand, VisitableCommand
public class ClearDataCommand
- extends AbstractVersionedDataCommand
Implements functionality defined by Cache.clearData(String)
}
- Since:
- 2.2
- Author:
- Mircea.Markus@jboss.com
METHOD_ID
public static final int METHOD_ID
- See Also:
- Constant Field Values
VERSIONED_METHOD_ID
public static final int VERSIONED_METHOD_ID
- See Also:
- Constant Field Values
ClearDataCommand
public ClearDataCommand(GlobalTransaction gtx,
Fqn fqn)
ClearDataCommand
public ClearDataCommand()
perform
public Object perform(InvocationContext ctx)
- Clears the data map in the node referenced by the specified Fqn.
- Parameters:
ctx
- invocation context
- Returns:
- null
rollback
public void rollback()
- Description copied from interface:
ReversibleCommand
- Reverses a command that has already been invoked.
Important: this method will be invoked at the end of interceptors chain. It should never be called directly from
a custom interceptor.
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 contextvisitor
- visitor to accept
- Returns:
- arbitrary return value
- Throws:
Throwable
- in the event of problems
getCommandId
public int 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.
getParameters
public Object[] getParameters()
- Description copied from class:
AbstractDataCommand
- Basic versions of these methods
- Specified by:
getParameters
in interface ReplicableCommand
- Overrides:
getParameters
in class AbstractVersionedDataCommand
- Returns:
- an object array of arguments, compatible with pre-2.2.0 MethodCall args.
setParameters
public void setParameters(int commandId,
Object[] args)
- Description copied from class:
AbstractDataCommand
- Basic versions of these methods
- Specified by:
setParameters
in interface ReplicableCommand
- Overrides:
setParameters
in class AbstractVersionedDataCommand
- 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
.args
- object array of args
equals
public boolean equals(Object o)
- Overrides:
equals
in class AbstractVersionedDataCommand
hashCode
public int hashCode()
- Overrides:
hashCode
in class AbstractVersionedDataCommand
isVersionedId
protected boolean isVersionedId(int id)
- Specified by:
isVersionedId
in class AbstractVersionedDataCommand
toString
public String toString()
- Overrides:
toString
in class AbstractDataCommand
Copyright © 2009 JBoss, a division of Red Hat. All Rights Reserved.