Examples of org.opengis.filter.FilterFactory.greater()

org.opengis.filter.FilterFactory.greater()
Checks that the first sub-expression is greater than the second subexpression.

                    FeatureSource fs = remoteStore.getFeatureSource(TOPP_STATES);
                    remoteStatesAvailable = Boolean.TRUE;
                    // check a basic response can be answered correctly
                    DefaultQuery dq = new DefaultQuery(TOPP_STATES);
                    FilterFactory ff = CommonFactoryFinder.getFilterFactory(null);
                    dq.setFilter(ff.greater(ff.property("PERSONS"), ff.literal(20000000)));
                    FeatureCollection fc = fs.getFeatures(dq);
                    if(fc.size() != 1) {
                        logger.log(Level.WARNING, "Remote database status invalid, there should be one and only one " +
                                "feature with more than 20M persons in topp:states");
                        remoteStatesAvailable = Boolean.FALSE;

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        FilterFactory ff = CommonFactoryFinder.getFilterFactory(null);
        Filter f = ff.equal(ff.property("STATE_NAME"), ff.literal("New York"), true);
        assertEquals(1, fs.getFeatures(f).size());
        
        // greater than
        f = ff.greater(ff.property("PERSONS"), ff.literal(10000000));
        assertEquals(6, fs.getFeatures(f).size());
        
        // mix in a filter that cannot be encoded
        f = ff.and(f, ff.like(ff.property("STATE_NAME"), "C*"));
        assertEquals(1, fs.getFeatures(f).size());

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        FilterFactory ff = CommonFactoryFinder.getFilterFactory(null);
        Filter f = ff.bbox("the_geom", -75.102613, 40.212597, -72.361859,41.512517, null);
        assertEquals(4, fs.getFeatures(f).size());
        
        // mix in an attribute filter
        f = ff.and(f, ff.greater(ff.property("PERSONS"), ff.literal("10000000")));
        assertEquals(6, fs.getFeatures(f).size());   
    }


    // ---------------------------------------------------------------------------------------
    // SUPPORT METHODS

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                .getFeatures(equivalentSourceFilter);


        int count = 0;
        int expectedCount = collection.size();


        Filter badFilter = ff.greater(ff.property("sample/measurement[1]/value"), ff
                .literal(new Integer(3)));


        while (reader.hasNext()) {
            Feature f = (Feature) reader.next();
            assertNotNull(f);

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        builder.setBinding(String.class);
        AttributeDescriptor attribute = builder.buildDescriptor("attribute");
        assertEquals(19, FeatureTypes.getFieldLength(attribute));
        
        // flip expression
        builder.addRestriction(ff.greater(ff.literal(20), length));
        builder.setBinding(String.class);
        attribute = builder.buildDescriptor("attribute");
        assertEquals(19, FeatureTypes.getFieldLength(attribute));
    }

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    }
    
    private Filter newTestFilter() {
        // Filter collects entries with number > 500
        FilterFactory ff = CommonFactoryFinder.getFilterFactory(null);
        return ff.greater(ff.property(NUMBER_COL), ff.literal(500));
    }
    
    private List<String> filteredCities() {
        return Arrays.asList("Lausanne", "Victoria", "Cape Town");
    }

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    }


    public void testGetFeaturesWithIsGreaterThanFilter() throws Exception {
        init();
        FilterFactory ff = dataStore.getFilterFactory();
        PropertyIsGreaterThan f = ff.greater(ff.property("speed_is"), ff.literal(300));
        SimpleFeatureCollection features = featureSource.getFeatures(f);
        assertEquals(0, features.size());
    }


    public void testGetFeaturesWithIsGreaterThanOrEqualToFilter() throws Exception {

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        FilterFactory ff = CommonFactoryFinder.getFilterFactory(null);
        
        Expression left = ff.literal(2);
        Expression right = ff.literal(1);
        
        PropertyIsGreaterThan filter = ff.greater( left, right );
        
        assertTrue( filter.evaluate( null ) );
        assertTrue( filter instanceof PropertyIsGreaterThan );
    }
}

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        FilterFactory ff = CommonFactoryFinder.getFilterFactory(null);
        Filter f = ff.equal(ff.property("STATE_NAME"), ff.literal("New York"), true);
        assertEquals(1, fs.getFeatures(f).size());
        
        // greater than
        f = ff.greater(ff.property("PERSONS"), ff.literal(10000000));
        assertEquals(6, fs.getFeatures(f).size());
        
        // mix in a filter that cannot be encoded
        f = ff.and(f, ff.like(ff.property("STATE_NAME"), "C*"));
        assertEquals(1, fs.getFeatures(f).size());

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        FilterFactory ff = CommonFactoryFinder.getFilterFactory(null);
        Filter f = ff.bbox("the_geom", -75.102613, 40.212597, -72.361859,41.512517, null);
        assertEquals(4, fs.getFeatures(f).size());
        
        // mix in an attribute filter
        f = ff.and(f, ff.greater(ff.property("PERSONS"), ff.literal("10000000")));
        assertEquals(6, fs.getFeatures(f).size());   
    }


    // ---------------------------------------------------------------------------------------
    // SUPPORT METHODS

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