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JavaGroups
Class RpcDispatcher

java.lang.Object
  |
  +--JavaGroups.JavaStack.Protocol
        |
        +--JavaGroups.MessageDispatcher
              |
              +--JavaGroups.RpcDispatcher
public class RpcDispatcher
extends MessageDispatcher
implements ChannelListener

Dispatches and receives remote group method calls. Is the equivalent of RpcProtocol on the application rather than protocol level.

Constructor Summary
RpcDispatcher(Channel channel, MessageListener l, MembershipListener l2, java.lang.Object server_obj)
           
 
Method Summary
 java.lang.Object CallRemoteMethod(java.lang.Object dest, MethodCall method_call, int mode, long timeout)
           
 java.lang.Object CallRemoteMethod(java.lang.Object dest, java.lang.String method_name, int mode, long timeout)
           
 java.lang.Object CallRemoteMethod(java.lang.Object dest, java.lang.String method_name, java.lang.Object arg1, int mode, long timeout)
           
 java.lang.Object CallRemoteMethod(java.lang.Object dest, java.lang.String method_name, java.lang.Object arg1, java.lang.Object arg2, int mode, long timeout)
           
 java.lang.Object CallRemoteMethod(java.lang.Object dest, java.lang.String method_name, java.lang.Object arg1, java.lang.Object arg2, java.lang.Object arg3, int mode, long timeout)
           
 RspList CallRemoteMethods(java.util.Vector dests, MethodCall method_call, int mode, long timeout)
           
 RspList CallRemoteMethods(java.util.Vector dests, java.lang.String method_name, int mode, long timeout)
           
 RspList CallRemoteMethods(java.util.Vector dests, java.lang.String method_name, java.lang.Object arg1, int mode, long timeout)
           
 RspList CallRemoteMethods(java.util.Vector dests, java.lang.String method_name, java.lang.Object arg1, java.lang.Object arg2, int mode, long timeout)
           
 RspList CallRemoteMethods(java.util.Vector dests, java.lang.String method_name, java.lang.Object arg1, java.lang.Object arg2, java.lang.Object arg3, int mode, long timeout)
           
 RspList CastMessage(java.util.Vector dests, Message msg, int mode, long timeout)
          Cast a message to all members, and wait for mode responses.
 void ChannelClosed(Channel channel)
           
 void ChannelConnected(Channel channel)
           
 void ChannelDisconnected(Channel channel)
           
 java.lang.String GetName()
           
 java.lang.Object Handle(Message req)
          Message contains MethodCall.
 java.lang.Object SendMessage(Message msg, int mode, long timeout)
          Sends a message to a single member (destination = msg.dest) and returns the response.
 
Methods inherited from class JavaGroups.MessageDispatcher
Down, finalize, PassDown, PassUp, Send, SetMembershipListener, SetMessageListener, SetRequestHandler, Start, StartDownHandler, StartUpHandler, Stop, StopInternal, Up
 
Methods inherited from class JavaGroups.JavaStack.Protocol
GetDownProtocol, GetProperties, GetUpProtocol, ProvidedDownServices, ProvidedUpServices, RequiredDownServices, RequiredUpServices, Reset, SetDownProtocol, SetProperties, SetProtocolStack, SetUpProtocol
 
Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

RpcDispatcher

public RpcDispatcher(Channel channel,
                     MessageListener l,
                     MembershipListener l2,
                     java.lang.Object server_obj)
Method Detail

GetName

public java.lang.String GetName()
Overrides:
GetName in class MessageDispatcher

CastMessage

public RspList CastMessage(java.util.Vector dests,
                           Message msg,
                           int mode,
                           long timeout)
Description copied from class: MessageDispatcher
Cast a message to all members, and wait for mode responses. The responses are returned in a response list, where each response is associated with its sender.

Uses GroupRequest.

Overrides:
CastMessage in class MessageDispatcher
Tags copied from class: MessageDispatcher
Parameters:
dests - The members to which then message is to be sent. If it is null, then the message is sent to all members
msg - The message to be sent to n members
mode - Defined in GroupRequest. The number of responses to wait for:
  1. GET_FIRST: return the first response received.
  2. GET_ALL: wait for all responses (minus the ones from suspected members)
  3. GET_MAJORITY: wait for a majority of all responses (relative to the grp size)
  4. GET_ABS_MAJORITY: wait for majority (absolute, computed once)
  5. GET_N: wait for n responses (may block if n > group size)
  6. GET_NONE: wait for no responses, return immediately (non-blocking)
timeout - If 0: wait forever. Otherwise, wait for mode responses or timeout time.
Returns:
RspList A list of responses. Each response is an Object and associated to its sender.

SendMessage

public java.lang.Object SendMessage(Message msg,
                                    int mode,
                                    long timeout)
                             throws Timeout,
                                    Suspected
Description copied from class: MessageDispatcher
Sends a message to a single member (destination = msg.dest) and returns the response. The message's destination must be non-zero !
Overrides:
SendMessage in class MessageDispatcher

CallRemoteMethods

public RspList CallRemoteMethods(java.util.Vector dests,
                                 java.lang.String method_name,
                                 int mode,
                                 long timeout)

CallRemoteMethods

public RspList CallRemoteMethods(java.util.Vector dests,
                                 java.lang.String method_name,
                                 java.lang.Object arg1,
                                 int mode,
                                 long timeout)

CallRemoteMethods

public RspList CallRemoteMethods(java.util.Vector dests,
                                 java.lang.String method_name,
                                 java.lang.Object arg1,
                                 java.lang.Object arg2,
                                 int mode,
                                 long timeout)

CallRemoteMethods

public RspList CallRemoteMethods(java.util.Vector dests,
                                 java.lang.String method_name,
                                 java.lang.Object arg1,
                                 java.lang.Object arg2,
                                 java.lang.Object arg3,
                                 int mode,
                                 long timeout)

CallRemoteMethods

public RspList CallRemoteMethods(java.util.Vector dests,
                                 MethodCall method_call,
                                 int mode,
                                 long timeout)

CallRemoteMethod

public java.lang.Object CallRemoteMethod(java.lang.Object dest,
                                         java.lang.String method_name,
                                         int mode,
                                         long timeout)
                                  throws Timeout,
                                         Suspected

CallRemoteMethod

public java.lang.Object CallRemoteMethod(java.lang.Object dest,
                                         java.lang.String method_name,
                                         java.lang.Object arg1,
                                         int mode,
                                         long timeout)
                                  throws Timeout,
                                         Suspected

CallRemoteMethod

public java.lang.Object CallRemoteMethod(java.lang.Object dest,
                                         java.lang.String method_name,
                                         java.lang.Object arg1,
                                         java.lang.Object arg2,
                                         int mode,
                                         long timeout)
                                  throws Timeout,
                                         Suspected

CallRemoteMethod

public java.lang.Object CallRemoteMethod(java.lang.Object dest,
                                         java.lang.String method_name,
                                         java.lang.Object arg1,
                                         java.lang.Object arg2,
                                         java.lang.Object arg3,
                                         int mode,
                                         long timeout)
                                  throws Timeout,
                                         Suspected

CallRemoteMethod

public java.lang.Object CallRemoteMethod(java.lang.Object dest,
                                         MethodCall method_call,
                                         int mode,
                                         long timeout)
                                  throws Timeout,
                                         Suspected

Handle

public java.lang.Object Handle(Message req)
Message contains MethodCall. Execute it against *this* object and return result. Use MethodCall.Invoke() to do this. Return result.
Overrides:
Handle in class MessageDispatcher

ChannelConnected

public void ChannelConnected(Channel channel)
Specified by:
ChannelConnected in interface ChannelListener

ChannelDisconnected

public void ChannelDisconnected(Channel channel)
Specified by:
ChannelDisconnected in interface ChannelListener

ChannelClosed

public void ChannelClosed(Channel channel)
Specified by:
ChannelClosed in interface ChannelListener
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