DerivedRelationobjectrelations.t[398]

Superclass
Tree 		Property
Summary 		Method
Summary 		Property
Details 		Method
Details

A DerivedRelation is one that doesn't maintain its own table of what it related to what, but works out what is related to what on the basis of some other relation(s) (e.g. a sibling relation might work by testing for common parents).

REQUIRES THE RELATIONS EXTENSION

DerivedRelation :   Relation

Superclass Tree   (in declaration order)

DerivedRelation
        Relation
                PreinitObject
                        ModuleExecObject
                                object

Summary of Properties  

Inherited from Relation :
name  reciprocal  relationType  relTab  reverseName 

Inherited from PreinitObject :
execBeforeMe  reverseGlobalSymbols 

Inherited from ModuleExecObject :
execAfterMe  hasInitialized_  isDoingExec_  isExecuted_ 

Summary of Methods  

addRelation  inverselyRelatedTo  relatedTo  removeRelation 

Inherited from Relation :
isInverselyRelated  isRelated  makeUnique 

Inherited from ModuleExecObject :
_execute  classExec  execute 

Properties  

(none)

Methods  

addRelation (objs)OVERRIDDENrelations.t[414]

By default we don't permit the direct addition of relationships via this relation, since this is a relation dependent upon external conditions.

inverselyRelatedTo (a)OVERRIDDENrelations.t[407]
no description available

relatedTo (a)OVERRIDDENrelations.t[405]
Instances need to override to provide a method that returns a list of items related to a via this relationship, on the basis of whatever criteria are appropriate.

removeRelation (objs)OVERRIDDENrelations.t[425]
By default we don't permit the direct removal of relationships via this relation, since this is a relation dependent upon external conditions.

Adv3Lite Library Reference Manual
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