Hi,
I am using java mapscript in an application. I have the requirement to add
annotations to an inline layer, and remove annotations from an inline layer.
I beleive removing annotations from an inline layer is not availble in
mapscript so as a work around I wanted to create a new layer with all the
features from my inline layer except the one I wanted to remove, then remove
the old layer (Hope that makes sense !).
Unfortunatly when I try and remove my old layer from the map the jvm crashes
taking down the tomcat process.
>From the entry 'Java VM Crashes using the Mapscript API' I can see a few
people have had simillar problems and its being put down to a garbage
collection problems in the jvm. The post states you should call the delete
method on a classObj when it is no longer used, I have tried this but its
not got rid of the problem. Can anyone point me in the right direction
please
My code is below...
layerObj annLayer = mapobject.getLayerByName(sLayerName);
layerObj newannLayer = new layerObj(mapobject);
int featureCounter = 0;
while (featureCounter < annLayer.getNumFeatures()){
shapeObj shape2 = annLayer.getFeature( featureCounter ,-1);
if (shape2.getValue(1).equals(sName)){
System.out.println("retreived shape index - " +
shape2.getIndex());
System.out.println("retreived shape - " +
shape2.getValue(1));
}
else{
System.out.println("adding feature to new layer
" +
shape2.getValue(1));
newannLayer.addFeature(shape2);
}
featureCounter++;
}
annLayer.getClass(0).getStyle(0).delete();
annLayer.getClass(0).delete();
annLayer.delete();
mapobject.removeLayer(annLayer.getIndex());
newannLayer.setName(sLayerName);
--
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