Issue 1413: Syntax for triggers and expressions traversing many relationships (boca-rtf) Source: (, ) Nature: Uncategorized Issue Severity: Summary: Summary: It is the intent of "triggers" that they can traverse relations, these > relations may be "many" or "one" associations. This is provided for > in > the Meta-Model by setting the "collection_content" parameter of the > "Traversal" node of an expressions, setting collection_content implies > a > single-value projection of the contents of the relation. In other > cases > it is required to access a framework method of the collection returned > by the traversal (such as count, sum or average). It is not clear in > the specification how this distinction is made in CDL syntax. All of > the examples of both kinds of traversal use a dot ".". Resolution: Revised Text: Actions taken: June 1, 1998: received issue June 23, 1998: closed issue Discussion: End of Annotations:===== Return-Path: From: Tom Digre To: issues Subject: FW: BOCA-RTF Issue - Syntax for triggers and expressions traversi ng many relationships Date: Mon, 1 Jun 1998 16:08:44 -0400 To be added as issue- > ---------- > From: Cory Casanave[SMTP:cory-c@dataaccess.com] > Sent: Monday, June 01, 1998 4:06 PM > To: boca-rtf@omg.org > Subject: BOCA-RTF Issue - Syntax for triggers and expressions > traversing many relationships > > It is the intent of "triggers" that they can traverse relations, > these > relations may be "many" or "one" associations. This is provided for > in > the Meta-Model by setting the "collection_content" parameter of the > "Traversal" node of an expressions, setting collection_content > implies > a > single-value projection of the contents of the relation. In other > cases > it is required to access a framework method of the collection > returned > by the traversal (such as count, sum or average). It is not clear > in > the specification how this distinction is made in CDL syntax. All > of > the examples of both kinds of traversal use a dot ".". > Cory Casanave >