Wednesday, 2 November 2011

Emplore: A Constraint Engine

I've started putting together a framework I'm code naming Emplore. It's a constraint engine that was born out of having data models being manipulated in multiple places in applications and a subsequent need to perform constraint checking in those places.

The general concept is that annotations will be used to decorate the model with constraint definitions. For example:

public class MyModel
  [ConstrainLength( minLength=1, maxLength=100 )]
  public var aString: String;

  [ConstrainRange( minValue=-123.4, maxValue=234.5 )]
  public var aNumber: Number;
The intention from here is that there will be functionality for automated validator generation and API-based constraint checking. Stay tuned for more.