org.objectweb.carol.cmi
Class DistributorSfsbRemote

java.lang.Object
  org.objectweb.carol.cmi.Distributor
      org.objectweb.carol.cmi.DistributorSfsbRemote

public abstract class DistributorSfsbRemote

extends Distributor

Specific Distributor class for the SFSB replication protocol - Handles a link with the Home instance for recreating an instance when an exception occurs - Holds a cluster wide ObjectId - Keeps request number

Author:

Benoit Pelletier, Alberto Paz-Jimenez (apaz@no-spam@fi.upm.es), Francisco Perez-Sorrosal (fpsorrosal@no-spam@fi.upm.es)

Constructor Summary

DistributorSfsbRemote()

Method Summary

StubData	choose(java.lang.reflect.Method method, java.lang.Object[] parameters) Choose a stub - for the SFSB Remote stub, the Distributor class contains only one stub
boolean	equivAtBind() To be overriden
boolean	equivAtExport() To be overriden
ObjectId	getClusterOID() Get the ObjectId
ClusterId	getCurrentServerId() Get the current server Id
java.lang.reflect.Method	getHomeCreateMethod() Get the home create method Search for a create method with the same parameters as homeCreateParameters
protected java.lang.Object[]	getHomeCreateParameters() Get the home create parameters
Decision	onException(java.lang.reflect.Method method, java.lang.Object[] parameters, StubData sd, java.lang.Exception ex) Decison on Exception The application deployer can override this method to make its own choices.
Decision	onReturn(java.lang.reflect.Method method, java.lang.Object[] parameters, StubData sd, java.lang.Object retVal) Decision on return The application deployer can override this method to make its own choices.
void	preInvoke(java.lang.reflect.Method method, java.lang.Object[] parameters) Callback invoked just before the method call Puts RequestId in HAContext
void	read(java.io.ObjectInput in) Read the input and builds a server stubs list
void	setClusterHandle(ClusterHandle clusterHandle) Sets the associated ClusterHandle
void	setClusterOID(ObjectId objectId) Set the ObjectId
void	setCurrentServerId(ClusterId csi) Set the current server Id
void	setHomeClusterStub(ClusterStub hcs) Set home cluster stub
void	setHomeCreateParameters(java.lang.Object[] parameters) Set the home create parameters
void	write(java.io.ObjectOutput out) Write the server stubs list

Methods inherited from class org.objectweb.carol.cmi.Distributor

chooseLocalFirst, getCurrentState, getMyServerId, getStubList, removeStub, removeStub, toContentsString, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

DistributorSfsbRemote

public DistributorSfsbRemote()

Method Detail

setClusterOID

public void setClusterOID(ObjectId objectId)

Set the ObjectId

getClusterOID

public ObjectId getClusterOID()

Get the ObjectId

Returns:

Returns the clusterOID.

setHomeClusterStub

public void setHomeClusterStub(ClusterStub hcs)

Set home cluster stub

Parameters:

hcs -

getHomeCreateMethod

public java.lang.reflect.Method getHomeCreateMethod()
                                             throws java.lang.SecurityException,
                                                    java.lang.NoSuchMethodException

Get the home create method Search for a create method with the same parameters as homeCreateParameters

Returns:

Returns the homeCreateMethod.

Throws:

java.lang.NoSuchMethodException

java.lang.SecurityException

setHomeCreateParameters

public void setHomeCreateParameters(java.lang.Object[] parameters)

Set the home create parameters

Parameters:

parameters - parameters list

getHomeCreateParameters

protected java.lang.Object[] getHomeCreateParameters()

Get the home create parameters

Returns:

parameters list

setCurrentServerId

public void setCurrentServerId(ClusterId csi)

Set the current server Id

Parameters:

csi - ClusterId

getCurrentServerId

public ClusterId getCurrentServerId()

Get the current server Id

Returns:

ClusterId

setClusterHandle

public void setClusterHandle(ClusterHandle clusterHandle)

Sets the associated ClusterHandle

Parameters:

clusterHandle - the new ClusterHandle

equivAtBind

public boolean equivAtBind()

Description copied from class: Distributor

To be overriden

Specified by:

equivAtBind in class Distributor

Returns:

true if the bound object have to be clustered

See Also:

Distributor.equivAtBind()

equivAtExport

public boolean equivAtExport()

Description copied from class: Distributor

To be overriden

Specified by:

equivAtExport in class Distributor

Returns:

true if the export object have to be clustered

See Also:

Distributor.equivAtExport()

preInvoke

public void preInvoke(java.lang.reflect.Method method,
                      java.lang.Object[] parameters)

Callback invoked just before the method call Puts RequestId in HAContext

Overrides:

preInvoke in class Distributor

Parameters:

method - calling method

parameters - parameters of the calling method

choose

public StubData choose(java.lang.reflect.Method method,
                       java.lang.Object[] parameters)
                throws NoServerException

Choose a stub - for the SFSB Remote stub, the Distributor class contains only one stub

Overrides:

choose in class Distributor

Parameters:

method - called method

parameters - array of parameters passed in

Returns:

chosen stub

Throws:

NoServerException - if no stub available

onException

public Decision onException(java.lang.reflect.Method method,
                            java.lang.Object[] parameters,
                            StubData sd,
                            java.lang.Exception ex)

Decison on Exception The application deployer can override this method to make its own choices.

Overrides:

onException in class Distributor

Parameters:

method - calling method

parameters - parameters of the calling method

sd - stub data

ex - exception

Returns:

decision

onReturn

public Decision onReturn(java.lang.reflect.Method method,
                         java.lang.Object[] parameters,
                         StubData sd,
                         java.lang.Object retVal)

Decision on return The application deployer can override this method to make its own choices.

Overrides:

onReturn in class Distributor

Parameters:

method - calling method

parameters - parameters of the calling method

sd - stub data

retVal - return value

Returns:

decision

write

public void write(java.io.ObjectOutput out)
           throws java.io.IOException

Write the server stubs list

Overrides:

write in class Distributor

Parameters:

out - output

Throws:

java.io.IOException - if an I/O error occurs

read

public void read(java.io.ObjectInput in)
          throws java.io.IOException,
                 java.lang.ClassNotFoundException

Read the input and builds a server stubs list

Overrides:

read in class Distributor

Parameters:

in - input

Returns:

ClusterStub server stub list

Throws:

java.io.IOException - if an I/O error occurs

java.lang.ClassNotFoundException - if the expected class can not be created