RpcDispatcherBlocking

java.lang.Object
- org.jgroups.tests.RpcDispatcherBlocking

All Implemented Interfaces:

Receiver
```
public class RpcDispatcherBlocking
extends java.lang.Object
implements Receiver
```
Tests synchronous group RPCs. 2 main test cases:
1. Member crashes during invocation of sync group RPC: start 3 instances (A, B,C), set the timeout to be 30 seconds. Then invoke a sync group RPC by A (press 's' in A's window). A,B and C should receive the RPC. Now kill C. After some time, A's method call should return and show A's and B's reply to be valid, while showing C's response marked as suspected.
2. Member joins group during synchronous group RPC: start A and B with timeout=30000. Invoke a sync group RPC on A. Start C. A and B should not receive the view change before the group RPC has returned with A's and B's results. Therefore A and B should not wait for C's response, which would never be received because C never got the RPC in the first place. This would block A forever.

Field Summary

Fields
Modifier and Type	Field	Description
`(package private) JChannel`	`channel`
`(package private) RpcDispatcher`	`disp`
`(package private) int`	`i`
`(package private) java.lang.String`	`props`
`(package private) long`	`timeout`

Constructor Summary

Constructors
Constructor Description

RpcDispatcherBlocking(java.lang.String props, long timeout)

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`(package private) static void`	`help()`
`static void`	`main(java.lang.String[] args)`
`void`	`print(int i)`
`(package private) RspList`	`sendGroupRpc()`
`void`	`start()`
`void`	`viewAccepted(View new_view)`	Called when a change in membership has occurred.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.jgroups.Receiver
block, getState, receive, receive, setState, unblock

- Field Detail
  - disp
```
RpcDispatcher disp
```
  - channel
```
JChannel channel
```
  - timeout
```
long timeout
```
  - props
```
java.lang.String props
```
  - i
```
int i
```
- Constructor Detail
  - RpcDispatcherBlocking
```
public RpcDispatcherBlocking(java.lang.String props,
                             long timeout)
```
- Method Detail
  - print
```
public void print(int i)
           throws java.lang.Exception
```
    Throws:
    
    java.lang.Exception
  - viewAccepted
```
public void viewAccepted(View new_view)
```
    Description copied from interface: Receiver
    
    Called when a change in membership has occurred. No long running actions, sending of messages or anything that could block should be done in this callback. If some long running action needs to be performed, it should be done in a separate thread.
    Note that on reception of the first view (a new member just joined), the channel will not yet be in the connected state. This only happens when JChannel.connect(String) returns.
    
    Specified by:
    
    viewAccepted in interface Receiver
  - start
```
public void start()
           throws java.lang.Exception
```
    Throws:
    
    java.lang.Exception
  - sendGroupRpc
```
RspList sendGroupRpc()
              throws java.lang.Exception
```
    Throws:
    
    java.lang.Exception
  - main
```
public static void main(java.lang.String[] args)
```
  - help
```
static void help()
```