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MQSeries.net Forum Index » Workflow Engines - IBM MQ Workflow & Business Process Choreographer » [Solved] isEmpty() method of PersistentList

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vennela
PostPosted: Thu Jan 02, 2003 1:09 pm    Post subject: [Solved] isEmpty() method of PersistentList Reply with quote

Jedi Knight

Joined: 11 Aug 2002
Posts: 4055
Location: Hyderabad, India
What is this method used for. The java doc says

Indicates whether no persistent list information is available

But what does information actually mean
I have always got "false" when I invoke this method. When does it return true?

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Venny
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educos
PostPosted: Thu Jan 02, 2003 1:33 pm    Post subject: Reply with quote

Apprentice

Joined: 18 Jul 2001
Posts: 34
Location: Salt Lake City, UT
I believe it means that there is no real MQWF object associated with it. This could probably only happen if you could allocate a PersistenList-derived object yourself, but since the MQWF API has factory-like calls where you never - for example - allocate a Worklist with "new", you either get it through queryWorklists or through createWorklist... Which probably explains why isEmpty always returns false...
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