Re: NEW ISSUE: no defaults for JMS headers

[Simon Holdsworth <simon_holdsworth@uk.ibm.com>]

Folks,

Given that this issue is effectively
raised as a result of the public review comment in BINDINGS-100, and that
it is potentially the only issue, we could consider resolving this issue
as part of the resolution of BINDINGS-100 and not open a separate issue
for it.

Regards, Simon

Simon Holdsworth
STSM, SCA Bindings Architect; Master Inventor; OASIS SCA Bindings TC Chair
MP 211, IBM UK Labs, Hursley Park, Winchester SO21 2JN, UK
Tel +44-1962-815059 (Internal 245059) Fax +44-1962-816898
Internet - Simon_Holdsworth@uk.ibm.com

__________________

TARGET: SCA JMS Binding Specification
CD-03

DESCRIPTION: 

The JMS binding does not define default
values for the deliveryMode, priority and timeToLive attributes.  The
lack of default values affects portability of binding definitions, potentially
resulting in quite different behaviour of the same binding definition on
different SCA runtimes.

PROPOSAL:

Update the defaults for these values
to match the JMS API defaults.  Note that the "type" header
has no defined values and therefore default is unspecified.

For the pseudo-schema element  /binding.jms/headers/@type,
@deliveryMode, @timeToLive, @priority  Update the last paragraph
to:   Valid values for @deliveryMode are “persistent”
and “nonpersistent” with "persistent"
being the default; valid values for @priority are “0”
to “9”, with "4" being the default;
valid values for @timeToLive are positive integers, with
0 indicating unlimited time and being the default value.

There is no need to update the definition
of the operationProperties/headers attributes as if these are not specified
they default to the values specified in the headers element, which provides
the defaults if not specified at that level either.

In the XML schema, update the deliveryMode,
timeToLive and priority attribute definitions to include default values:

<attribute name="deliveryMode"
default="persistent">
<simpleType>
<restriction base="string">
<enumeration value="persistent"/>
<enumeration value="nonpersistent"/>
</restriction>
</simpleType>
</attribute>
<attribute name="timeToLive"
type="long" default="0"/>
<attribute name="priority"
default="4">
<simpleType>
<restriction base="string">
<enumeration value="0"/>
<enumeration value="1"/>
<enumeration value="2"/>
<enumeration value="3"/>
<enumeration value="4"/>
<enumeration value="5"/>
<enumeration value="6"/>
<enumeration value="7"/>
<enumeration value="8"/>
<enumeration value="9"/>
</restriction>
</simpleType>
</attribute>


Regards, Simon

Simon Holdsworth
STSM, SCA Bindings Architect; Master Inventor; OASIS SCA Bindings TC Chair
MP 211, IBM UK Labs, Hursley Park, Winchester SO21 2JN, UK
Tel +44-1962-815059 (Internal 245059) Fax +44-1962-816898
Internet - Simon_Holdsworth@uk.ibm.com

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IBM United Kingdom Limited - Registered in England and Wales with number 741598.
Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire PO6 3AU

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Unless stated otherwise above:
IBM United Kingdom Limited - Registered in England and Wales with number 741598.
Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire PO6 3AU