Package org.geotools.feature.visitor

Examples of org.geotools.feature.visitor.SumVisitor

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            } else if (function == AggregationFunction.Min) {
                calc = new MinVisitor(attIndex, features.getSchema());
            } else if (function == AggregationFunction.StdDev) {
                calc = new StandardDeviationVisitor(CommonFactoryFinder.getFilterFactory(null).property(aggAttribute));
            } else if (function == AggregationFunction.Sum) {
                calc = new SumVisitor(attIndex, features.getSchema());
            } else {
                throw new ProcessException("Uknown method " + function);
            }
            visitors.add(calc);
        }
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     * @throws IllegalFilterException
     * @throws IOException
     */
    static CalcResult calculateSum(SimpleFeatureCollection collection,
        Expression expression) throws IllegalFilterException, IOException {
        SumVisitor sumVisitor = new SumVisitor(expression);
        collection.accepts(sumVisitor, null);

        return sumVisitor.getResult();
    }
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    public void testSum() throws Exception {
        FilterFactory ff = dataStore.getFilterFactory();
        PropertyName p = ff.property( aname("doubleProperty") );
       
        SumVisitor v = new MySumVisitor(p);
        dataStore.getFeatureSource(tname("ft1")).accepts(Query.ALL, v, null);
        assertFalse(visited);
        assertEquals( 3.3, v.getResult().toDouble(), 0.01 );
    }
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    public void testSumWithFilter() throws Exception {
        FilterFactory ff = dataStore.getFilterFactory();
        PropertyName p = ff.property( aname("doubleProperty") );
       
        SumVisitor v = new MySumVisitor(p);
       
        Filter f = ff.less( ff.property( aname("doubleProperty") ), ff.literal(2) );
        Query q = new DefaultQuery( tname("ft1"), f);
        dataStore.getFeatureSource( tname("ft1")).accepts( q, v, null);
        assertFalse(visited);
        assertEquals( 1.1, v.getResult().toDouble(), 0.01 );
    }
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            return;
        }
        FilterFactory ff = dataStore.getFilterFactory();
        PropertyName p = ff.property( aname("doubleProperty") );
       
        SumVisitor v = new MySumVisitor(p);
       
        DefaultQuery q = new DefaultQuery( tname("ft1"));
        q.setStartIndex(0);
        q.setMaxFeatures(2);
       
        dataStore.getFeatureSource( tname("ft1")).accepts( q, v, null);
        assertFalse(visited);
        assertEquals( 1.1, v.getResult().toDouble(), 0.01 );
    }
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            } else if (function == AggregationFunction.Min) {
                calc = new MinVisitor(attIndex, features.getSchema());
            } else if (function == AggregationFunction.StdDev) {
                calc = new StandardDeviationVisitor(CommonFactoryFinder.getFilterFactory(null).property(aggAttribute));
            } else if (function == AggregationFunction.Sum) {
                calc = new SumVisitor(attIndex, features.getSchema());
            } else {
                throw new WPSException("Uknown method " + function);
            }
            visitors.add(calc);
        }
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Related Classes of org.geotools.feature.visitor.SumVisitor

  • org.geoserver.wps.gs.AggregateProcess
  • org.geotools.feature.visitor.AverageVisitor.AverageResult
  • org.geotools.filter.function.Collection_SumFunction
  • org.geotools.jdbc.JDBCAggregateFunctionTest
  • org.geotools.process.vector.AggregateProcess
  • org.opengis.feature.type.AttributeDescriptor
  • org.opengis.filter.FilterFactory
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