public Object evaluate(Object feature) {
String arg0;
try { // attempt to get value and perform conversion
arg0 = getExpression(0).evaluate(feature, String.class); // extra
// protection
// for
// strings
} catch (Exception e) // probably a type error
{
throw new IllegalArgumentException(
"Filter Function problem for function parseInt argument #0 - expected type String");
}
return new Integer(StaticGeometry.parseInt(arg0));
}
