edu.ucdavis.rj.Ops
Class OpMethod

java.lang.Object
  java.rmi.server.RemoteObject
      java.rmi.server.RemoteServer
          java.rmi.server.UnicastRemoteObject
              edu.ucdavis.rj.Ops.OpImpl
                  edu.ucdavis.rj.Ops.OpMethod

All Implemented Interfaces:

Op, OpRemote, java.io.Serializable, java.rmi.Remote

public abstract class OpMethod
extends OpImpl

An operation that's to be serviced via a method. (Aka Proc-Op.) Extend this class with one that contains actual code.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface edu.ucdavis.rj.Ops.OpRemote

OpRemote.Helper

Field Summary

Fields inherited from class java.rmi.server.RemoteObject

ref

Constructor Summary

OpMethod()
Create a new instance of an operation that's to be serviced via a method.

Method Summary

boolean	canAppearInInni() Can this operation be serviced by an inni? Only an OpInni can.
abstract void	codeBlock(Invocation inv) Override this method with the actual code for the operation.
void	deliverPendingMessages() If operation's queue of pending invocations was locked due to equivalence class locking stuff (e.g., merging), then deliver pending messages.
OpInniIterator	elements() ///// /////////////////////// throw exception
long	getFirstTime() /////
InLock	getLock() Get the equivalence class lock for this operation.
boolean	isRemote(java.lang.String site) Is this operation on a remote VM or on the current VM?
int	length() Returns the number of Invocations pending for this operation.
Invocation	P() //////////////////
Invocation	receive() Get the first (oldest) pending invocation of this operation.

Methods inherited from class edu.ucdavis.rj.Ops.OpImpl

call, call, equals, getId, hashCode, isNoop, send, send, V

Methods inherited from class java.rmi.server.UnicastRemoteObject

clone, exportObject, exportObject, exportObject, unexportObject

Methods inherited from class java.rmi.server.RemoteServer

getClientHost, getLog, setLog

Methods inherited from class java.rmi.server.RemoteObject

getRef, toString, toStub

Methods inherited from class java.lang.Object

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

Constructor Detail

OpMethod

public OpMethod()
         throws java.rmi.RemoteException

Create a new instance of an operation that's to be serviced via a method.

Throws:

java.rmi.RemoteException

Method Detail

codeBlock

public abstract void codeBlock(Invocation inv)

Override this method with the actual code for the operation.

Parameters:

inv - The invocation to service.

receive

public Invocation receive()

Get the first (oldest) pending invocation of this operation. Wait if no invocation is pending.

Returns:

The first pending invocation.

getFirstTime

public long getFirstTime()

/////

Returns:

that timestamp.

canAppearInInni

public boolean canAppearInInni()
                        throws java.rmi.RemoteException

Description copied from interface: Op

Can this operation be serviced by an inni? Only an OpInni can.

Returns:

true if and only if this operation is an OpInni.

Throws:

java.rmi.RemoteException

getLock

public InLock getLock()
               throws java.rmi.RemoteException

Description copied from interface: Op

Get the equivalence class lock for this operation.

Returns:

that lock.

Throws:

java.rmi.RemoteException

isRemote

public boolean isRemote(java.lang.String site)
                 throws java.rmi.RemoteException

Description copied from interface: Op

Is this operation on a remote VM or on the current VM?

Returns:

true if and only if this operation is remote.

Throws:

java.rmi.RemoteException

deliverPendingMessages

public void deliverPendingMessages()
                            throws java.rmi.RemoteException

Description copied from interface: Op

If operation's queue of pending invocations was locked due to equivalence class locking stuff (e.g., merging), then deliver pending messages.

Throws:

java.rmi.RemoteException

elements

public OpInniIterator elements()
                        throws java.rmi.RemoteException

///// /////////////////////// throw exception

Returns:

that iterator.

Throws:

java.rmi.RemoteException

P

public Invocation P()

//////////////////

length

public int length()

Returns the number of Invocations pending for this operation.

Specified by:

length in interface Op

Specified by:

length in class OpImpl

Returns:

The number of pending Invocations, which will be 0 for an OpMethod.