Difference between Obj-vallidate and Declarative Rules

Difference between Obj-vallidate and Declarative Rules:

=>Declarative  Rules Will be called on Refresh Of the Screen.

Where as Obj-vallidate  is Getting invoked on Submit Button

=>Declarative Rules Being Called On selection Properties where as the obj-vallidate is up to a flow Action

Vallidation's

Vallidation's:

Using vallidation's Rules We can vallidate Single Or Multiple Properties

=>There are 2 Types of Vallidations in PRPC

1.Obj-vallidate

2.Edit-vallidate

1.Obj-vallidate:

 It is An Instance Of Rule-obj-Instance using we can Vallidate Multiple controls of a Particular 

Flow Action On 'Submit'Button

=>This Rule Can be Categoried Under Process category

Right click on class Group  - New -Process-vallidate

DissAdvantage Of Declarative Rules

DissAdvantage Of Declarative Rules:

=>Declarative Rules Limits The Usage Of Properties

=>Once We  applied Declarative Rules ,We can not ReUse The Property Without The Condition Being Used

Declare Constraints

Declare  Constraints:

It is Used To  Vallidate Multiple Properties ,But Here The Vallidation's One Property Depends On another Property

Example:

First name ,Last Name Vallidation Using Constraints

Class Group----New-----Decision ----Declare Constraints

When.Last name=First Name

Require That .Last Name !=.First Name

Else Add Message "First Name and Last Name Should not Be The same "To.Last name

=>Save The Declare constraints

=>Go to Section Last name Property Behaviour On changeEvent.

=>Save And Run The Flow. 

Declare On Change

Declare On Change:

This Rule can be applied On changing  The Property Value ,An activity Will be Called Automatically Based on Certain Condition Here The activity Must be Aplied On change 

Creation Of Declare On change:

=>First Create  On change Rule

=>We need Create 

1.When Condition:

When .Property <  "  "

2.Activity

Method

Property -set-Message Expand This

Message="if any write should be greater"

Field =Property


=>Go to Security Tab

Activity Type=On change

Now Create On change

Class Group ---- Decision -----Declare On change

Properties To Watch


1.Property

conditions

when    property when

choose  action    Call Activity


When True Run

Activity   On change property

=>Go to Section Age Property  Behaviour is  Set On ChangeEvent


Note :If  U  Not Understanding of Creation Of this Rule Please Comment. Immediately  This post changed to Graphical(images) Explain

1.Declare Expression

1.Declare Expression:

Whenever there is change In Source Property Value ,Target Property Value Will be Updated Automatically Declare Expression Rules are Used To Perform Automatic Calculation

Scenario:

=>Calculate The Total Loss From Individual Loss Using Declare Expression

Total Loss=Loss1+Loss2+Loss3

=>Create 3 Properties 

=>Next  Create  Declare Expression 

Set .Total Loss= Value Of Loss1+Loss2+Loss3

Save The Declare Expression

Set  Property Behaviour =On change  

Event= Onchange

Refresh the Section 

=>Next Create Flow Action And Flow

=>After Save and Run The Flow

Declarative Rules

Declarative Rules:

=>These Rules are used For Vallidations based on Properties These are Created Under Decision 

Category There are 3 Types of Declarative Rules In Prpc 

1)Declare Expression

2)Declare On Change

3)Declare Constraints

We explained One by One in above 3 Types Detailed in Next Posts

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