Callback Signature List

List of all callback defined by JavaMkKernel

The callback have to be a Java proc or method …

Callback signature

package jvmsgque.mkkernel;
 
public interface MkObjectDeleteIF {
  void Callback (MkObjectC obj);
}

Read more about how to define a service-callback in theLink .

Callback example

Example about the delete-callback-setup from the RPC server example/jv/LibSq3LiteRpcServer.java

ServerSetup : The DeleteCallback is usually installed in the Setup-Callback but only once.

    if (ConfigGetIsParent()) {
      // call “RpcObjectDeleteCall” ONLY when deleting an instance whose class name matches the regular expression “^Sq3”
      MkObjectC.DeleteCallbackSetup("LibSq3LiteRpcServer", new RpcObjectDeleteCall(),"^Sq3");
    }

The DeleteCallback is called before the deletion. In the RPC example, the RPC client is informed about the impending deletion.

  class RpcObjectDeleteCall implements MkObjectDeleteIF {
    public void Callback ( MkObjectC obj ) {
      Send("E","%DEL:CCIH",ConfigGetName(),obj.ToNameOfType(),obj.HandleGetOfType(),obj.HandleGet());
    }
  }

ServerCleanup : If the RPC server is deleted, the DeleteCallback is no longer needed and is therefore also deleted.

    if (ConfigGetIsParent()) {
      MkObjectC.DeleteCallbackCleanup("LibSq3LiteRpcServer");
    }

Member MkObjectDeleteCallbackSetup_RT (MK_RT const mkrt, MK_STRN ident, MkObjectDeleteCallF fCall, MK_CBP callback, MkObjectDeleteFreeF fFree, MK_STRN filter)

MkObjectDeleteCallbackSetup