Assigned: http://www.osoa.org/jira/browse/BP-127
From: Ralf Mueller
[mailto:ralf.mueller@oracle.com]
Sent: Wednesday, October 07, 2009 12:14
To: bpel4people@lists.oasis-open.org
Subject: [bpel4people] New Issue: WS-HT API's required to set task
deadlines
Target:
Latest WS-HT spec
Description:
As part of the the discussion on BP-104, a new set of WS-HT
API's needs to be added to
set a task deadlines duration or deadline expression of the
startDeadline and completionDeadline
Proposal:
1. Modify type "tDeadline" in ws-humantask.xsd to
include a name attribute
for deadlines. This is to identify a
deadline out of the potential many deadlines
a task might specify
<xsd:complexType
name="tDeadline">
<xsd:complexContent>
<xsd:extension
base="tExtensibleElements">
<xsd:sequence>
<xsd:choice>
<xsd:element
name="for" type="tDuration-expr" />
<xsd:element name="until" type="tDeadline-expr"
/>
</xsd:choice>
<xsd:element
name="escalation" type="tEscalation"
minOccurs="0" maxOccurs="unbounded" />
</xsd:sequence>
<xsd:attribute
name="name" type="xsd:NCName" use="required"/>
</xsd:extension>
</xsd:complexContent>
</xsd:complexType>
2. WS-HT Chapter 7.1.1., Participant Operations
Add the following API's:
setTaskStartDeadlineExpression
In:
task identifier
deadline name
deadline expression
Out:
void
setTaskStartDurationExpression
In:
task identified
deadline name
duration expression
Out:
void
setTaskCompletionDeadlineExpression
In:
task identifier
deadline name
deadline expression
Out:
void
setTaskCompletionDurationExpression
In:
task identifier
deadline name
duration expression
Out:
void
Operations above should support Batch Processing, the
Pre-State is CreatedReady, Reserved, In Progress and
there is no state transition as part of above operations
Please note that above API's simply set the duration or
deadline expressions of a task deadline. As an alternative
we could have the API overwrite the entire startDeadline,
completionDeadline definition (including the deadline
escalation definitions). Personally, i wouldn't go that
route though.
Best Regards,
Ralf
