gvSIG bugs #2088: NPE drawing an empty Postgis Layer - Application: gvSIG desktop - gvSIG

gvSIG bugs #2088

NPE drawing an empty Postgis Layer

Added by Jose Manuel Vivó Arnal over 10 years ago. Updated over 10 years ago.

Status:

Closed

% Done:

Priority:

Normal

Spent time:

Assignee:

Juan Lucas Domínguez

Category:

Database

Target version:

2.1.0-2217-devel

Severity:

Add-on version:

2.0

gvSIG version:

2.0.0

Add-on build:

2066

gvSIG build:

2066

Add-on resolve version:

Operative System:

Add-on resolve build:

Keywords:

Proyecto:

Has patch:

Hito:

Add-on name:

Database conectors (org.gvsig.geodb)

Description

When I tried to add a empty layer (0 register layer, due filter or no-records in table/view) a NPE exception is throw:

java.lang.NullPointerException
    at org.gvsig.symbology.fmap.mapcontext.rendering.legend.impl.AbstractVectorialLegend.internalDraw(AbstractVectorialLegend.java:342)
    at org.gvsig.symbology.fmap.mapcontext.rendering.legend.impl.AbstractVectorialLegend.draw(AbstractVectorialLegend.java:296)
    at org.gvsig.symbology.fmap.mapcontext.rendering.legend.impl.AbstractVectorialLegend.draw(AbstractVectorialLegend.java:141)
    at org.gvsig.fmap.mapcontext.layers.vectorial.FLyrVect.draw(FLyrVect.java:308)
....
....

This is due to PostgreSQLHelper.getFullEnvelopeOfField() method returns null if no-record or null is found as result of Select asbinary(extent({field})) execution.

Suggestions:

1. PostgreSQLHelper.getFullEnvelopeOfField always returns a Envelope. If can't get any an empty-envelope instance will be returned.
2. AbstractVectorialLegend.internalDraw checks if layer returns null.