patch to link geotools FID <-> ArcSDE rowId column
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Key: GEOT-803
URL: http://jira.codehaus.org/browse/GEOT-803
Project: GeoTools
Type: Improvement
Components: arcsde
Versions: 2.1.2, 2.1.0, 2.1.1
Environment: ArcSDE 9.0 solaris 8 - Sparc
ArcSDE 9.1 RHEL 3 - AMD64
Reporter: Saul Farber
Assigned to: Gabriel Roldán
Priority: Minor
Attachments: sde-rowmanagedFID.patch
ArcSDE allows a spatial database table to have "null" geometries. I.e., it
allows the geometry column in a table to have null values...meaning that a
particular spatially-enabled row just doesn't happen to have a geometry right
now. Perhaps it will be be updated later.
The current 2.1.x ArcSDE module simply extracts the featureid of a row
(feature) from the unique-id of the geometry (SeShape) for that row (feature).
Unfortunately, this means that null geometry rows don't get a featureid, and
consequently can't be returned by geotools (fails with "The featureId was not
fetched" on ArcSDEAttributeReader.java line 270 or so)
I wanted to work with tables that had null geometries, and I knew that ArcSDE
has a mechanism to communicate that a particular column (attribute) in a table
(featureType) is the "unique-id" column for that table. So I figured that that
would be a better "guaranteed-unique" featureID candidate, since that's what
it's designed for.
This patch adds this functionality, gracefully falling back to the current
behavior when no such column is available.
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