Issue 1536:  Helper classes are only for user defined IDL types (java-rtf)
Source:  (, )
Nature:  Clarification
Severity:  Significant
Summary: Summary: The Java Language Mapping mandates Helper classes for user defined IDL
 types but does not say Helper classes are ONLY for user defined IDL types.
 Please let us all know whether the ObjectHelper class is standard or not.
 

Resolution: closed issue
Revised Text: 
Actions taken:
June 23, 1998: received issue
July 30, 1998: closed issue
Discussion: 

End of Annotations:=====
Return-Path: <www>
Date: Mon, 22 Jun 1998 20:19:37 -0400
From: www
To: juergen@omg.org, web-incoming@omg.org
Subject: WWW Form output

Name: Richard Staehli
Company: Oracle
Email: rstaehli@us.oracle.com
Notification: Yes
Specification: CORBA Arch & Spec
Section: 24.16.13
Formal #: 
Version: Revision 2.2
Revision_Date: 
Page: 928
Nature: Clarification
Severity: Significant
full_desc: The Java Language Mapping mandates Helper classes for user
defined IDL
types but does not say Helper classes are ONLY for user defined IDL
types.

In section 24.16.13, the spec states:

    The IDL Object type is mapped to the ore.omg.CORBA.Object and
    org.omg.CORBA.ObjectHelper classes as shown below.

This is the only mention of the ObjectHelper class and it appears to
be
a mistake, since there is no apparent need for the operations that an
ObjectHelper class would provide.  Of course, if some IDL compilers
produce
stubs that depend on an ObjectHelper class, these stubs will not be
portable to an ORB that does not implement the ObjectHelper class.

Please let us all know whether the ObjectHelper class is standard or
not.

Thanks.
submit: Submit Issue Report


Return-Path: <Jeff.Nisewanger@Eng.Sun.COM>
Date: Tue, 23 Jun 1998 09:07:31 -0700
From: Jeff.Nisewanger@Eng.Sun.COM (Jeff Nisewanger)
To: issues@omg.org, java-rtf@omg.org, juergen@omg.org
Subject: Re: issue1536
X-Sun-Charset: US-ASCII

> This is issue # 1536
> 
> Helper classes are only for user defined IDL types
> 
> The Java Language Mapping mandates Helper classes for user defined
> IDL
> types but does not say Helper classes are ONLY for user defined IDL
> types.
> Please let us all know whether the ObjectHelper class is standard or
> not.

	 I don't believe that ObjectHelper is defined as a standard
class by the Java to IDL language mapping. Instead, the usual Helper
class methods such as insert(), extract() and id() for the Object
interface are available on other standard classes such as Any
insert_Object() and extract_Object() and the ORB class via
get_primitive_tc(TCKind.tk_objref).id(). Also, there is no need for
the narrow() method since Object is the base type for all IDL Objects.



	Jeff

Return-Path: <Jeff.Nisewanger@Eng.Sun.COM>
Date: Tue, 23 Jun 1998 09:27:20 -0700
From: Jeff.Nisewanger@Eng.Sun.COM (Jeff Nisewanger)
To: issues@omg.org, java-rtf@omg.org, juergen@omg.org,
        Jeff.Nisewanger@Eng.Sun.COM
Subject: Re: issue1536
X-Sun-Charset: US-ASCII

> > This is issue # 1536
> > 
> > Helper classes are only for user defined IDL types
> > 
> > The Java Language Mapping mandates Helper classes for user defined
> IDL
> > types but does not say Helper classes are ONLY for user defined
> IDL types.
> > Please let us all know whether the ObjectHelper class is standard
> or not.
> 
>	 I don't believe that ObjectHelper is defined as a standard
> class by the Java to IDL language mapping. Instead, the usual Helper
> class methods such as insert(), extract() and id() for the Object
> interface are available on other standard classes such as Any
> insert_Object() and extract_Object() and the ORB class via
> get_primitive_tc(TCKind.tk_objref).id(). Also, there is no need for
> the narrow() method since Object is the base type for all IDL
> Objects.

	Whoops, make that the "IDL to Java" language mapping.