ConstraintSpec

Superclass

Object

Subclasses

SingleConstraintSpec, CompositeConstraintSpec

Subclass Responsibilities

#encode, #isAcceptable:fieldNames:

Referenced By

SingleElementSpec, GroupedElementSpec, DatedElementSpec,

DatedGroupedElementSpec, SeparatingElementSpec

This abstract class specifies the constraints that are to be put ont the element specs.  It
returns a boolean value.  It is also possible to perform boolean operation, and also to
invert the value.

Instance Variables
invert   <Boolean>	Return the not of the evaluated value.

Class Variables
	none

Contacts
	jku@cat.ncsa.uiuc.edu