Uses of Interface
org.opengis.feature.FeatureVisitor

Packages that use FeatureVisitor

Package	Description
org.geotools.appschema.resolver.data
org.geotools.data	Defines the DataStoreAPI via which all data is imported or exported.
org.geotools.data.collection	Implementations of FeatureCollection for different purposes.
org.geotools.data.complex	This package contains the implementation of a ComplexDataStore, Author note: though this "Complex" datastore has born to provide complex features out of a simple features data source, it may be better called a DerivativeDataStore or something like that, you'll see why later.
org.geotools.data.crs	Provides support for the OGC Catalog Specification.
org.geotools.data.gen
org.geotools.data.memory
org.geotools.data.mongodb
org.geotools.data.property
org.geotools.data.store
org.geotools.feature
org.geotools.feature.collection	Helper classes for implementing FeatureCollections.
org.geotools.feature.visitor
org.geotools.jdbc

Uses of FeatureVisitor in org.geotools.appschema.resolver.data

Methods in org.geotools.appschema.resolver.data with parameters of type FeatureVisitor

Modifier and Type	Method and Description
void	SampleDataAccessFeatureCollection.accepts(FeatureVisitor visitor, ProgressListener progress)

Uses of FeatureVisitor in org.geotools.data

Methods in org.geotools.data with parameters of type FeatureVisitor

Modifier and Type	Method and Description
static void	DataUtilities.visit(FeatureCollection<?,?> collection, FeatureVisitor visitor, ProgressListener progress) Manually visit each feature using FeatureCollection.features().

Uses of FeatureVisitor in org.geotools.data.collection

Methods in org.geotools.data.collection with parameters of type FeatureVisitor

Modifier and Type	Method and Description
void	TreeSetFeatureCollection.accepts(FeatureVisitor visitor, ProgressListener progress)
void	SpatialIndexFeatureCollection.accepts(FeatureVisitor visitor, ProgressListener listener)

Uses of FeatureVisitor in org.geotools.data.complex

Methods in org.geotools.data.complex with parameters of type FeatureVisitor

Modifier and Type	Method and Description
void	MappingFeatureCollection.accepts(FeatureVisitor visitor, ProgressListener progress)

Uses of FeatureVisitor in org.geotools.data.crs

Methods in org.geotools.data.crs with parameters of type FeatureVisitor

Modifier and Type	Method and Description
void	ForceCoordinateSystemFeatureResults.accepts(FeatureVisitor visitor, ProgressListener progress)
void	ReprojectFeatureResults.accepts(FeatureVisitor visitor, ProgressListener progress)
protected boolean	ForceCoordinateSystemFeatureResults.canDelegate(FeatureVisitor visitor)
protected boolean	ReprojectFeatureResults.canDelegate(FeatureVisitor visitor)

Uses of FeatureVisitor in org.geotools.data.gen

Methods in org.geotools.data.gen with parameters of type FeatureVisitor

Modifier and Type	Method and Description
void	PreGeneralizedFeatureCollection.accepts(FeatureVisitor visitor, ProgressListener progress)

Uses of FeatureVisitor in org.geotools.data.memory

Methods in org.geotools.data.memory with parameters of type FeatureVisitor

Modifier and Type	Method and Description
protected boolean	MemoryFeatureStore.handleVisitor(Query query, FeatureVisitor visitor)
protected boolean	MemoryFeatureSource.handleVisitor(Query query, FeatureVisitor visitor)

Uses of FeatureVisitor in org.geotools.data.mongodb

Methods in org.geotools.data.mongodb with parameters of type FeatureVisitor

Modifier and Type	Method and Description
protected boolean	MongoFeatureStore.handleVisitor(Query query, FeatureVisitor visitor)
protected boolean	MongoFeatureSource.handleVisitor(Query query, FeatureVisitor visitor)

Uses of FeatureVisitor in org.geotools.data.property

Methods in org.geotools.data.property with parameters of type FeatureVisitor

Modifier and Type	Method and Description
protected boolean	PropertyFeatureSource.handleVisitor(Query query, FeatureVisitor visitor) Make handleVisitor package visible allowing PropertyFeatureStore to delegate to this implementation.
protected boolean	PropertyFeatureStore.handleVisitor(Query query, FeatureVisitor visitor)

Uses of FeatureVisitor in org.geotools.data.store

Methods in org.geotools.data.store with parameters of type FeatureVisitor

Modifier and Type	Method and Description
void	DataFeatureCollection.accepts(FeatureVisitor visitor, ProgressListener progress)
void	ContentFeatureCollection.accepts(FeatureVisitor visitor, ProgressListener progress)
void	ContentFeatureSource.accepts(Query query, FeatureVisitor visitor, ProgressListener progress) Visit the features matching the provided query.
protected boolean	ReTypingFeatureCollection.canDelegate(FeatureVisitor visitor)
protected boolean	ReprojectingFeatureCollection.canDelegate(FeatureVisitor visitor)
protected boolean	ContentFeatureSource.handleVisitor(Query query, FeatureVisitor visitor) Subclass method which allows subclasses to natively handle a visitor.
static boolean	ReprojectingFeatureCollection.isGeometryless(FeatureVisitor visitor, SimpleFeatureType schema) Returns true if the visitor is geometryless, that is, it's not accessing a geometry field in the target schema
static boolean	ReTypingFeatureCollection.isTypeCompatible(FeatureVisitor visitor, SimpleFeatureType featureType) Checks if the visitor is accessing only properties available in the specified feature type, or as a special case, if it's a count visitor accessing no properties at all

Uses of FeatureVisitor in org.geotools.feature

Methods in org.geotools.feature with parameters of type FeatureVisitor

Modifier and Type	Method and Description
void	FeatureCollection.accepts(FeatureVisitor visitor, ProgressListener progress) Visit the contents of a feature collection.
void	DefaultFeatureCollection.accepts(FeatureVisitor visitor, ProgressListener progress)

Uses of FeatureVisitor in org.geotools.feature.collection

Classes in org.geotools.feature.collection that implement FeatureVisitor

Modifier and Type	Class and Description
class	AbstractFeatureVisitor An abstract class to reduce the amount of work needed when working with FeatureVisitor.

Methods in org.geotools.feature.collection with parameters of type FeatureVisitor

Modifier and Type	Method and Description
void	FilteringSimpleFeatureCollection.accepts(FeatureVisitor visitor, ProgressListener progress)
void	AbstractFeatureCollection.accepts(FeatureVisitor visitor, ProgressListener progress)
void	DecoratingFeatureCollection.accepts(FeatureVisitor visitor, ProgressListener progress)
void	DecoratingSimpleFeatureCollection.accepts(FeatureVisitor visitor, ProgressListener progress)
void	AdaptorFeatureCollection.accepts(FeatureVisitor visitor, ProgressListener progress) Accepts a visitor, which then visits each feature in the collection.
void	BaseFeatureCollection.accepts(FeatureVisitor visitor, ProgressListener progress)
protected boolean	DecoratingSimpleFeatureCollection.canDelegate(FeatureVisitor visitor) Methods for subclass to override in order to determine if the supplied visitor can be passed to the delegate collection.

Uses of FeatureVisitor in org.geotools.feature.visitor

Subinterfaces of FeatureVisitor in org.geotools.feature.visitor

Modifier and Type	Interface and Description
interface	FeatureAttributeVisitor Extension of FeatureVisitor for visitors that require access to properties of the feature collection being visited.
interface	FeatureCalc A visitor which performs a calculation on a FeatureCollection.
interface	LimitingVisitor A visitor that can limit the features that can be visited (for example to implement startOffset, maxFeatures pagination).

Classes in org.geotools.feature.visitor that implement FeatureVisitor

Modifier and Type	Class and Description
class	AverageVisitor Calculates the Average
class	BoundsVisitor Calculates the extents (envelope) of the features it visits.
class	CountVisitor Determines the number of features in the collection
class	EqualAreaListVisitor Obtains the data needed for a Equal Area operation (classification of features into classes each roughly having the same area).
class	GroupByVisitor Group features by one or several attributes and applies an aggregator visitor to each group.
class	MaxVisitor Calculates the maximum value of an attribute.
class	MedianVisitor Calculates the median of an attribute in all features of a collection
class	MinVisitor Calculates the minimum value of an attribute.
class	NearestVisitor Finds the nearest value to the provided one in the attribute domain.
class	QuantileListVisitor Obtains the data needed for a Quantile operation (classification of features into classes of equal size).
class	StandardDeviationVisitor Determines the standard deviation.
class	SumAreaVisitor Calculates the Sum of Areas for geometric fields
class	SumVisitor Calculates the Sum of an attribute (of a FeatureVisitor)
class	UniqueVisitor Generates a list of unique values from a collection

Methods in org.geotools.feature.visitor that return FeatureVisitor

Modifier and Type	Method and Description
FeatureVisitor	GroupByVisitor.getAggregateVisitor()

Uses of FeatureVisitor in org.geotools.jdbc

Fields in org.geotools.jdbc with type parameters of type FeatureVisitor

Modifier and Type	Field and Description
protected HashMap<Class<? extends FeatureVisitor>,String>	JDBCDataStore.aggregateFunctions Feature visitor to aggregate function name

Methods in org.geotools.jdbc that return types with arguments of type FeatureVisitor

Modifier and Type	Method and Description
Map<Class<? extends FeatureVisitor>,String>	JDBCDataStore.getAggregateFunctions() Returns the supported aggregate functions and the visitors they map to.

Methods in org.geotools.jdbc with parameters of type FeatureVisitor

Modifier and Type	Method and Description
protected List<Expression>	JDBCDataStore.extractGroupByExpressions(FeatureVisitor visitor) Helper method that extracts a list of group by attributes from a group by visitor.
protected Object	JDBCDataStore.getAggregateValue(FeatureVisitor visitor, SimpleFeatureType featureType, Query query, Connection cx) Results the value of an aggregate function over a query.
protected boolean	JDBCFeatureStore.handleVisitor(Query query, FeatureVisitor visitor)
protected boolean	JDBCFeatureSource.handleVisitor(Query query, FeatureVisitor visitor)
protected boolean	JDBCDataStore.isCountVisitor(FeatureVisitor visitor)
protected boolean	JDBCDataStore.isGroupByVisitor(FeatureVisitor visitor) Helper method the checks if a feature visitor is a group by visitor,
protected String	JDBCDataStore.matchAggregateFunction(FeatureVisitor visitor) Helper method that will try to match a feature visitor with an aggregate function.

Method parameters in org.geotools.jdbc with type arguments of type FeatureVisitor

Modifier and Type	Method and Description
void	SQLDialect.registerAggregateFunctions(Map<Class<? extends FeatureVisitor>,String> aggregates) Registers the set of aggregate functions the dialect is capable of handling.