Examples of org.geotools.filter.visitor.AbstractFilterVisitor

org.geotools.filter.visitor.AbstractFilterVisitor
Base implementation of the FilterVisitor used for inorder traversal of expressions.
This class implements the full FilterVisitor interface and will visit every member of a Filter object. This class performs no actions and is not intended to be used directly, instead extend it and overide the methods for the expression types you are interested in. Remember to call the super method if you want to ensure that the entire filter tree is still visited.

You may still need to implement FilterVisitor directly if the visit order set out in this class does not meet your needs. This class visits in sequence i.e. Left - Middle - Right for all expressions which have sub-expressions.
@author James Macgill, Penn State @author Justin Deoliveira, The Open Planning Project @source $URL$


                                return name;
                            }
                            ;
                        };
                    query.getFilter().accept(new AbstractFilterVisitor(visitor), null);
                    
                    //2. ensure any spatial predicate is made against a property 
                    // that is actually special
                    AbstractFilterVisitor fvisitor = new AbstractFilterVisitor() {
                      
                        protected Object visit( BinarySpatialOperator filter, Object data ) {
                            PropertyName name = null;
                            if ( filter.getExpression1() instanceof PropertyName ) {
                                name = (PropertyName) filter.getExpression1();
                            }
                            else if ( filter.getExpression2() instanceof PropertyName ) {
                                name = (PropertyName) filter.getExpression2();
                            }
                            
                            if ( name != null ) {
                                //check against fetaure type to make sure its
                                // a geometric type
                                AttributeDescriptor att = (AttributeDescriptor) name.evaluate(featureType);
                                if ( !( att instanceof GeometryDescriptor ) ) {
                                    throw new WFSException("Property " + name + " is not geometric", "InvalidParameterValue");
                                }
                            }
                            
                            return filter;
                        }
                    };
                    query.getFilter().accept(fvisitor, null);
                    
                    //3. ensure that any bounds specified as part of the query
                    // are valid with respect to the srs defined on the query
                    if ( wfs.isCiteCompliant() ) {
                        
                        if ( query.getSrsName() != null ) {
                            final QueryType fquery = query;
                            fvisitor = new AbstractFilterVisitor() {
                                public Object visit(BBOX filter, Object data) {
                                    if ( filter.getSRS() != null && 
                                            !fquery.getSrsName().toString().equals( filter.getSRS() ) ) {
                                        
                                        //back project bounding box into geographic coordinates

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                                return name;
                            }
                            ;
                        };


                    filter.accept(new AbstractFilterVisitor(visitor), null);
                }


                // extract collection
                VersioningFeatureSource store = (VersioningFeatureSource) source;
                FeatureCollection<SimpleFeatureType, SimpleFeature> logs = store.getLog(query

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                                return name;
                            }
                            ;
                        };


                    filter.accept(new AbstractFilterVisitor(visitor), null);
                }


                // extract collection
                VersioningFeatureSource store = (VersioningFeatureSource) source;
                FeatureDiffReader differences = store.getDifferences(query.getFromFeatureVersion(),

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                                return name;
                            }
                            ;
                        };


                    filter.accept(new AbstractFilterVisitor(visitor), null);
                }


                // extract collection
                VersioningFeatureSource store = (VersioningFeatureSource) source;
                SimpleFeatureCollection logs = store.getLog(query

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                                return name;
                            }
                            ;
                        };
                    query.getFilter().accept(new AbstractFilterVisitor(visitor), null);
                    
                    //2. ensure any spatial predicate is made against a property 
                    // that is actually special
                    AbstractFilterVisitor fvisitor = new AbstractFilterVisitor() {
                      
                        protected Object visit( BinarySpatialOperator filter, Object data ) {
                            PropertyName name = null;
                            if ( filter.getExpression1() instanceof PropertyName ) {
                                name = (PropertyName) filter.getExpression1();
                            }
                            else if ( filter.getExpression2() instanceof PropertyName ) {
                                name = (PropertyName) filter.getExpression2();
                            }
                            
                            if ( name != null ) {
                                //check against fetaure type to make sure its
                                // a geometric type
                                AttributeDescriptor att = (AttributeDescriptor) name.evaluate(featureType);
                                if ( !( att instanceof GeometryDescriptor ) ) {
                                    throw new WFSException("Property " + name + " is not geometric", "InvalidParameterValue");
                                }
                            }
                            
                            return filter;
                        }
                    };
                    query.getFilter().accept(fvisitor, null);
                    
                    //3. ensure that any bounds specified as part of the query
                    // are valid with respect to the srs defined on the query
                    if ( wfs.isCiteCompliant() ) {
                        
                        if ( query.getSrsName() != null ) {
                            final QueryType fquery = query;
                            fvisitor = new AbstractFilterVisitor() {
                                public Object visit(BBOX filter, Object data) {
                                    if ( filter.getSRS() != null && 
                                            !fquery.getSrsName().toString().equals( filter.getSRS() ) ) {
                                        
                                        //back project bounding box into geographic coordinates

View Full Code Here


                    return name;
                }
                ;
            };
        filter.accept(new AbstractFilterVisitor(visitor), null);
        
        //2. ensure any spatial predicate is made against a property 
        // that is actually spatial
        AbstractFilterVisitor fvisitor = new AbstractFilterVisitor() {
          
            protected Object visit( BinarySpatialOperator filter, Object data ) {
                PropertyName name = null;
                if ( filter.getExpression1() instanceof PropertyName ) {
                    name = (PropertyName) filter.getExpression1();
                }
                else if ( filter.getExpression2() instanceof PropertyName ) {
                    name = (PropertyName) filter.getExpression2();
                }
                
                if ( name != null ) {
                    // check against feataure type to make sure its
                    // a geometric type
                    AttributeDescriptor att = (AttributeDescriptor) name.evaluate(featureType);
                    if ( !( att instanceof GeometryDescriptor ) ) {
                        throw new WFSException(request, "Property " + name
                                + " is not geometric in feature type " + meta.prefixedName(),
                                "InvalidParameterValue");
                    }
                }
                
                return filter;
            }
        };
        filter.accept(fvisitor, null);
        
        //3. ensure that any bounds specified as part of the query
        // are valid with respect to the srs defined on the query
        if ( wfs.isCiteCompliant() ) {
            
            if ( query.getSrsName() != null ) {
                final Query fquery = query;
                fvisitor = new AbstractFilterVisitor() {
                    public Object visit(BBOX filter, Object data) {
                        if ( filter.getSRS() != null && 
                                !fquery.getSrsName().toString().equals( filter.getSRS() ) ) {
                            
                            //back project bounding box into geographic coordinates

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Related Classes of org.geotools.filter.visitor.AbstractFilterVisitor

org.geoserver.wfs.GetFeature

org.geoserver.wfsv.GetDiff

org.geoserver.wfsv.GetLog

org.opengis.filter.Filter

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