Autoupdaters

The following links provide lists of autoupdaters available with the ArcFM Solution install. This page provides explanations of some of the more complex AUs.

Autoupdaters and related unit records: Note that autoupdaters that are meant to keep attribute values synchronized between a feature and its related unit records (such as a fuse and fuse unit) must always be assigned in pairs, such that all editing possibilities are covered. While one autoupdater must be assigned to the OnUpdate event for the feature class (or else for the unit object class, if the desired propagation direction is from unit to feature), a second autoupdater must be assigned to the OnRelationshipCreated and OnRelationshipDeleted events on the relationship class that joins the features to their units.

Length Autoupdaters

There are four similar attribute autoupdaters in the ArcFM Solution:

ArcFM Length Measured Domain
ArcFM Length Single
ArcFM Length Double
ArcFM Length Integer

All of these autoupdaters perform the same function. They update the Measured Length field with the value in the Shape.Len (Shape_Length in Access) field. The difference between them is when they are used.

If the Measured Length domain is assigned to the field, then the ArcFM Length Measured Domain AU is the only one available. If there is no domain assigned to the field, the ArcFM Length Measured Domain AU is available as well as the Length AU that corresponds with the fields data type. For example, if the field's data type is Double, then the ArcFM Length Double AU is available. If a domain other than Measured Length is assigned to the field, then none of the Length AUs are available.

Split Autoupdaters

ArcFM provides several autoupdaters that split linear features, such as conductors and gas mains. To better understand how these autoupdaters work, it is important to understand how a linear feature is split. ArcMap doesn't break the original linear feature. Instead, it performs the split by deleting the original linear feature and creating two new ones in its place.

In the example below, the original distribution main has a facility ID of 6402. A valve is added which carries the ArcFM Segment Split autoupdater on its On Feature Create event. The Segment Split AU checks the conductor for the model name SplitTarget. The distribution main in the example carries the model name, so the feature is "split." ArcMap deletes the 6402 feature and creates two new features in its place (6403 and 6404 in the example).

Note: The ArcFM Segment Split autoupdater may be assigned to point features that participate in the geometric network.

Some combo autoupdaters combine the split autoupdater with a relate autoupdater. In this case, the related object is saved before the split and related to the new conductor features after the split.