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Conference azur::mcc

Title:DECmcc user notes file. Does not replace IPMT.
Notice:Use IPMT for problems. Newsletter location in note 6187
Moderator:TAEC::BEROUD
Created:Mon Aug 21 1989
Last Modified:Wed Jun 04 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:6497
Total number of notes:27359

2028.0. "IMPM Double-Click behaviour change V1.1-EFT V1.2 ?" by TAEC::HAYES (A European Telecomet ...) Mon Jan 06 1992 11:06

    
    
	With DECmcc VMS T1.2.4, my customer is encountering
	a behaviour modification with DECmcc V1.2 contra DECmcc V1.1 :

	- In version V1.1 , when we Double-Click on a global
	  entity, the AM receives the 
	  SHOW <class> * ALL ID (ex SHOW APBX .TOTO LINE * ALL ID)  
          for sub-classes which have DYNAMIC = FALSE in the MSL.
       	
	  The SHOW <class> * ALL ID for sub-classes with DYNAMIC = TRUE
	  is only sent to the AM when we Double-Click on the
	  subclass itself and not on the global class.

	- In version V1.2 , when we Double-Click on a global
	  entity, the AM receives the 
	  SHOW <class> * ALL ID for all sub-classes 
          whatever DYNAMIC may be in the subclass MSL definition
          (FALSE or TRUE).
	
	  I read in the TK Release notes p3-14 paragraph 3.2.2

	" The AM or the FM must support the SHOW <class> * ALL ID for each
          entity class. The IMPM issues this directive when performing
	  the "lookinto" operation ".

	   My question is :

        1) Does this mean the IMPM behaviour change from V1.1 to V1.2 
           they have observed is normal ?	
	
	2) Is there any way to come back to a V1.1 behaviour ?

	3) For subclasses containing only one instance in the class 
	   in some entities like a SINK or a LOG for example ?

	   - Does the AM/FM still has to support the
	     SHOW ENTITY TOTO SINK * ALL ID ?

	   - If yes, what is the recommended implementation
	     in the AM ?

	     * Return an identifier which has no meaning as there
               is only one instance in this class ?
	     * Leave to the agent the responsibility to return
	       this identifier ?
	     * Other ?


		Best Regards


			CjH	 
               
T.RTitleUserPersonal
Name
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2028.1v1.2 lookinto single instance algorithm changed...BARREL::LEMMONMon Jan 06 1992 18:3251
    
        1) Does this mean the IMPM behaviour change from V1.1 to V1.2
           they have observed is normal ?
  
    >
    > Yes but it only occurs with single instance children. In v1.2 the 
    > iconic map issues a
    >
    >    SHOW <class> <instance> <child-class>  ALL IDENT
    >
    > regardless of whether the child is dynamic or not.
    > This change was introduced because the iconic map was 
    > displaying all single instance children; regardless of whether 
    > the entity instance actually supports it or not.   This was a bug.
    >
    > The lookinto code was modified to issue the show 
    > directive to verify that child exists, and only 
    > displaying it if it did.
    >     
            2) Is there any way to come back to a V1.1 behaviour ?
    >
    > No because not all entity instances have every single instance child.
    > To make the user double click into everyone to see which exist is 
    > not user friendly.  The class NODE has over 15 single instance
    > entities, all dynamic because they are not to be registered when the 
    > node is registered.  
    >
            3) For subclasses containing only one instance in the class
               in some entities like a SINK or a LOG for example ?
    
               - Does the AM/FM still has to support the
                 SHOW ENTITY TOTO SINK * ALL ID ?
    >
    > To be SRM compliant all entities must support the show identifier
    > directive.
    >
               - If yes, what is the recommended implementation
                 in the AM ?
    
                 * Return an identifier which has no meaning as there
                   is only one instance in this class ?
                 * Leave to the agent the responsibility to return
                   this identifier ?
                 * Other ?
    >
    >  Return an empty attribute partition.  This is what all of the 
    >  DECmcc MMs do.  (e.g., SHOW MCC 0 ICONICMAP ALL IDENT)
    >
    >
    > /Jim