Question
Cognizant
US
Last activity: 22 Jun 2017 3:48 EDT
Declare Index rule concept
Guys can you suggest me on below confusion
how to update or delete the instances of a concrete class derived from index-class using declarative index rule
***Updated by moderator: Lochan to add Categories***
BUPA
AU
Hi Pradeep,
Declare index is mainly used to write the source page context into an index class data instance. If the source class property is updated then the index class property is also updated by PRPC. Similarly addition and deletion works for declare index. Kindly share your business scenario or problem statement to provide more accurate solution.
https://community.pega.com/sites/default/files/help_v719/procomhelpmain.htm
Cognizant
US
Hi SwarnenduM,
Thanks for your quick response
i have gone through the above link which you have provided above but i have confusion with below statement
Caution: Do not use Property-Set or Obj-Save methods on instances in a class derived from the Index- base class. Use only Declare Index rules to change these properties and instances.
Use only Declare Index rules to change these properties and instances. What does it mean ?
and suppose if i want to add 20 instances or want to delete 20 instances of concrete class which is derived from index-class how to do ?
the same way using obj methods how we do for other concrete classes or any other way we do using declare index rule ?
BUPA
AU
Pega advise to avoid Property-Set or Obj-Save method of Index - derived classes in order to restrict multiple update of a same instance stored in Index table. Index class is mainly used for Declare Index and thus any instance of this class should be updated or added via declare index.
In your requirement you can try with normal OOTB delete method but the purpose of declare index is to expose the embedded data to ease the access and make it much faster during reporting.