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

org.opengis.filter.FilterFactory.literal()
A constant, literal value that can be used in expressions.

        FilterFunction_geometryType geomTypeExpr=new FilterFunction_geometryType();
        List<Expression> params = new ArrayList<Expression>();
        params.add(factory.property(geomXPath));
        geomTypeExpr.setParameters(params);
        
        return factory.equals(geomTypeExpr, factory.literal(geometryClassSimpleName));
    }
    
    public static Style parse(URL url) throws IOException {
        return SLDs.parseStyle(url);
    }

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            syms[0] = builder.createLineSymbolizer(baseColor, 2);
        if (Point.class.isAssignableFrom(type) || MultiPoint.class.isAssignableFrom(type)) {
            PointSymbolizer point = builder.createPointSymbolizer(builder.createGraphic());
            FilterFactory ff = builder.getFilterFactory();
            // point.getGraphic().getMarks()[0].setSize((Expression) ff.literal(10));
            point.getGraphic().setSize(ff.literal(10));
            Mark mark = (Mark) point.getGraphic().graphicalSymbols().get(0);
            mark.setFill(builder.createFill(baseColor));
            syms[0] = point;
        }
        if (Polygon.class.isAssignableFrom(type) || MultiPolygon.class.isAssignableFrom(type)) {

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        FilterFactory factory = CommonFactoryFinder.getFilterFactory(GeoTools.getDefaultHints());
        FilterFunction_geometryType geomTypeExpr = new FilterFunction_geometryType();
        List<Expression> params = Arrays.asList(new Expression[]{factory.property(geomXPath)});
        geomTypeExpr.setParameters(params);


        PropertyIsEqualTo filter = factory.equals(geomTypeExpr, factory
                .literal(geometryClassSimpleName));
        return filter;
    }


    private void createGeometrySLD( Color colour, Color colour2, String geomXPath, Style style,

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            syms[0] = builder.createLineSymbolizer(baseColor, 2);
        if (Point.class.isAssignableFrom(type) || MultiPoint.class.isAssignableFrom(type)) {
            PointSymbolizer point = builder.createPointSymbolizer(builder.createGraphic());
            FilterFactory ff = builder.getFilterFactory();


            point.getGraphic().setSize(ff.literal(10));
            Mark mark = (Mark) point.getGraphic().graphicalSymbols().get(0);
            mark.setFill(builder.createFill(baseColor));
            syms[0] = point;
        }
        if (Polygon.class.isAssignableFrom(type) || MultiPolygon.class.isAssignableFrom(type)) {

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    @Test
    public void testBackendRemovedIssue() throws Exception{
      FeatureStore<SimpleFeatureType, SimpleFeature> fs = (FeatureStore<SimpleFeatureType, SimpleFeature>) store
        .getFeatureSource(featureType.getName().getLocalPart());
        FilterFactory factory = CommonFactoryFinder.getFilterFactory(GeoTools.getDefaultHints());
        Expression expr2 = factory.literal("1");
    Expression expr1 = factory.property(IssuesListTestHelper.ISSUE_ID_ATTR);
    Filter filter = factory.equals(expr1, expr2); 
        fs.removeFeatures(filter);
        list.refresh();
        for( IIssue issue : list ) {

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        IIssue issue = list.get(0);
        issue.setDescription(newDescription);
        ((IRemoteIssuesList)list).save(issue);
        FilterFactory factory = CommonFactoryFinder.getFilterFactory(GeoTools.getDefaultHints());


        Expression expr2 = factory.literal(issue.getId());
    Expression expr1 = factory.property(IssuesListTestHelper.ISSUE_ID_ATTR);
    Filter filter = factory.equals(expr1, expr2); 


        SimpleFeature next = store.getFeatureSource(featureType.getName().getLocalPart()).getFeatures(filter).features().next();
        assertEquals(newDescription, next.getAttribute(IssuesListTestHelper.DESCRIPTION_ATTR));

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          syms[0]=builder.createLineSymbolizer(baseColor,2);
        if( Point.class.isAssignableFrom(type) || 
            MultiPoint.class.isAssignableFrom(type)){
          PointSymbolizer point = builder.createPointSymbolizer(builder.createGraphic());
          FilterFactory filterFactory = builder.getFilterFactory();
          point.getGraphic().setSize( filterFactory.literal(10));
            for( GraphicalSymbol symbol : point.getGraphic().graphicalSymbols() ){
                if( symbol instanceof Mark){
                    Mark mark = (Mark) symbol;
                    mark.setFill( builder.createFill( baseColor ));
                }

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          newValues[8]=viewMemento;
          
          FilterFactory factory = CommonFactoryFinder.getFilterFactory(GeoTools
        .getDefaultHints());
    Expression expr1 = factory.property(getAttributeMapper().getId());
    Expression expr2 = factory.literal(issue.getId());
    PropertyIsEqualTo filter = factory.equals(expr1, expr2);
    getFeatureStore().modifyFeatures(attributeType, newValues, filter);
  }

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    Filter filter = null;
    
        for( IIssue issue : changed ) {
            String id=issue.getId();
            Expression expr2 = factory.literal(id);
            PropertyIsEqualTo tmp = factory.equals(expr1, expr2);
            
            if( filter==null )
                filter=tmp;
            else

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    @Test
    public void testIsValid() throws Exception {
        FilterFactory fac=CommonFactoryFinder.getFilterFactory(GeoTools.getDefaultHints());
        
        String attributeName = "string";
        PropertyIsEqualTo filter = fac.equals(fac.property(attributeName), fac.literal("Value"));
        
        SimpleFeatureTypeBuilder builder=new SimpleFeatureTypeBuilder();
        builder.setName("test");
        builder.restriction(filter).add(attributeName, String.class);

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