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If you examine the property page of Requisition, you see that it has a persistence type of Temporary and persistence number of days of 0. This means that the run time data associated with any work items for this item type are eligible for purging as soon as they complete. You also see that it calls a selector function named WF_REQDEMO.SELECTOR. This selector function is an example PL/SQL stored procedure that returns the name of the process to run when more than one process exists for a given item type. The selector function in this example returns REQUISITION_APPROVAL or 'Requisition Approval' as the process to run.

The Requisition item type also has several attributes associated with it. These attributes reference information in the demonstration application tables. The attributes are used and maintained by function activities as well as notification activities throughout the process.

Requisition Item Type Attributes

Display Name	Description	Type	Length/Format/Lookup Type
Forward From Username	Username of the person that the requisition is forwarded from	Role
Forward To Username	Username of the person that the requisition is forwarded to	Role
Requestor Username	Username of the requisition preparer	Role
Requisition Amount	Requisition amount	Number	9,999,999,999.99
Requisition Number	Unique identifier of a requisition	Text
Requisition Description	Unique user identifier of a requisition	Text	30
Requisition Process Owner	Username of the requisition owner	Role
Note	Note	Text
Monitor URL	Monitor URL	URL
Requisition Document	Requisition Document is generated by PL/SQL	Document
Reminder Requisition Document	Reminder Requisition Document is generated by PL/SQL	Document