[Geotools-devel] [jira] (GEOT-4247) IndexOutOfBounds in ClassificationFunction setExpression and setClasses

Wed, 29 Aug 2012 23:08:46 -0700

Issue Type: Bug Bug
Affects Versions: 8.1
Assignee: Jody Garnett
Components: main
Created: 30/Aug/12 1:06 AM
Description:

In the transition to an internal list of parameters, the accessor methods provided by the various classification functions have been broken.

For example 

public void setClasses(int classes) {
        org.opengis.filter.FilterFactory ff = CommonFactoryFinder.getFilterFactory(null);
        Literal _expression_ = ff.literal(classes);
        getParameters().set(1, _expression_);
    }


The above function will only work if setParameters( List ) has already been called. During construction parameters is set to new ArrayList(2). Which is still empty, and thus set(1, _expression_ ) will result in an IndexOutOfBounds exception.



Work around as a user is to use setParameters:




List<_expression_> params = new ArrayList<_expression_>(2);
params.add( expr );
params.add( literal );
function.setParameters(params);
Project: GeoTools
Priority: Minor Minor
Reporter: Jody Garnett
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