Properties
|
|
Records can be created in various ways. You can add a new record to your application or copy an existing one. You can specialize existing rules by creating a copy in a specific ruleset, against a different class or (in some cases) with a set of circumstance definitions. You may copy data instances but they do not support specialization as they are not versioned.
Based on your use case, the Create, Save As or Specialization form is used to create the record. The number of fields and available options vary by record type. Start by familiarizing yourself with the generic layout of these forms and their common fields:
This
Create a new property by selecting Property
from the Data Model
category.
Note these tips:
A property has two key parts:
Field |
Description |
Apply to |
Select the name of the class in which you are creating the property. For a property of mode The list of available class names depends on the ruleset you select. Each class can restrict applying rules to an explicit set of rulesets as specified on the Advanced tab of the class form. |
Identifier |
Enter a name that starts with a letter and includes only alphanumeric and dash characters, forming a Java identifier. See How to enter a Java identifier. Avoiding duplicate namesAs a best practice for good runtime performance, choose property names that are distinct and unique throughout your application. For technical reasons, having several properties named Amount in one inheritance path, even if these have different RuleSets, can slow the initial assembly of rules that reference Amount. Choosing more explicit names — such as PrincipalAmount, AmountAtRisk, TotalOrderAmount — will both prevent this performance impact and also help ensure that developers use the appropriate property. Notes on namesProperty names may contain up to 64 characters. However, if this property is of mode Except when overriding a standard rule in an upwards-compatible way, choose a name that does not start with px or py. Property names that start with these letters are reserved. In your application, however, use of standard properties with names starting with px and py is encouraged. Your application can set and test values in these properties. The pz prefix identifies standard properties that support the Pega 7 Platform internal operations. Do not directly alter these in your application. Don't choose a name that matches a reserved page name or keyword, such as |
Referred to as Quick Create options, the fields presented in this area of the Create form are optional. Selections made here can be used as a starting point for the rule you are creating:
Field |
Description |
Data Type |
Select a data type to create a |
Access When |
Select a when rule if you are creating a |
If you are creating a top-level Single Value
property in a concrete class, you can choose to optimize ("expose") the property as a database column now, before the system contains any values for the property.
If you are uncertain, leave these blank; you can expose the property as a column, and populate the column with values later. (This feature is available only on systems with a production level of 1 or 2, requires specific database account capabilities, and requires that you hold the SchemaPropertyOptimization privilege. See Working with the PegaRULES database — Schema changes.)
Field |
Description |
Optimize this Property for reporting on (class) |
Select the top check box to expose the property for the Apply to class only. |
Optimize this Property for reporting on (class) and its descendent classes |
Select the second check box to expose the property for the Apply to class and all classes derived from this class. |
When searching for rules of this type, the system:
Time-qualified and circumstance-qualified rule resolution features are not available for this rule type.