org.geotools.styling

Class FeatureTypeStyleImpl

Object

FeatureTypeStyleImpl

All Implemented Interfaces:

Cloneable, FeatureTypeStyle

public class FeatureTypeStyleImpl
extends Object
implements FeatureTypeStyle, Cloneable

Implementation of Feature Type Style; care is taken to ensure everything is mutable.

Author:

James Macgill, Johann Sorel (Geomatys)

Field Summary

Fields

Modifier and Type	Field and Description
static String	KEY_EVALUATION_MODE This option influences how multiple rules matching the same feature are evaluated
protected Map<String,String>	options
static String	VALUE_EVALUATION_MODE_ALL The standard behavior, all the matching rules are executed
static String	VALUE_EVALUATION_MODE_FIRST Only the first matching rule gets executed, all the others are skipped

Fields inherited from interface FeatureTypeStyle

COMPOSITE, COMPOSITE_BASE, SORT_BY, SORT_BY_GROUP

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	FeatureTypeStyleImpl() Creates a new instance of FeatureTypeStyleImpl
	FeatureTypeStyleImpl(FeatureTypeStyle fts)
protected	FeatureTypeStyleImpl(List<Rule> arules)
protected	FeatureTypeStyleImpl(Rule[] rules) Creates a new instance of FeatureTypeStyleImpl

Method Summary

Modifier and Type	Method and Description
void	accept(StyleVisitor visitor)
Object	accept(StyleVisitor visitor, Object data) calls the visit method of a StyleVisitor
Object	clone() Creates a deep copy clone of the FeatureTypeStyle.
boolean	equals(Object oth) Compares this FeatureTypeStyleImpl with another.
Set<Name>	featureTypeNames() Returns the names of the feature type that this style is meant to act upon.
Description	getDescription() Description for this style.
Id	getFeatureInstanceIDs() Returns a collection of Object identifying features object.
String	getName() Returns a name for this style.
OnLineResource	getOnlineResource() It is common to have a style coming from a external xml file, this method provide a way to get the original source if there is one.
Map<String,String>	getOptions() Map of vendor options for the symbolizer.
Expression	getTransformation() The eventual transformation to be applied before rendering the data (should be an expression taking a feature collection or a grid coverage as the evaluation context and returns a feature collection or a grid coverage as an output)
int	hashCode() Overrides hashCode.
boolean	hasOption(String key) Determines if a vendor option with the specific key has been set on this symbolizer.
List<Rule>	rules() Rules govern the appearance of any given feature to be styled by this styler.
Set<SemanticType>	semanticTypeIdentifiers() Returns a collection that identifies the more general "type" of geometry that this style is meant to act upon.
void	setName(String name)
void	setOnlineResource(OnLineResource online) It is common to have a style coming from a external xml file, this method provide a way to get the original source if there is one.
void	setTransformation(Expression transformation) Sets the eventual transformation to be applied before rendering the data (should be an expression taking a feature collection or a grid coverage as an input and returns a feature collection or a grid coverage as an output)
String	toString()

Methods inherited from class Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

KEY_EVALUATION_MODE

public static String KEY_EVALUATION_MODE

This option influences how multiple rules matching the same feature are evaluated

VALUE_EVALUATION_MODE_ALL

public static String VALUE_EVALUATION_MODE_ALL

The standard behavior, all the matching rules are executed

VALUE_EVALUATION_MODE_FIRST

public static String VALUE_EVALUATION_MODE_FIRST

Only the first matching rule gets executed, all the others are skipped

options

protected Map<String,String> options

Constructor Detail

FeatureTypeStyleImpl

protected FeatureTypeStyleImpl(Rule[] rules)

Creates a new instance of FeatureTypeStyleImpl

FeatureTypeStyleImpl

protected FeatureTypeStyleImpl(List<Rule> arules)

FeatureTypeStyleImpl

protected FeatureTypeStyleImpl()

Creates a new instance of FeatureTypeStyleImpl

FeatureTypeStyleImpl

public FeatureTypeStyleImpl(FeatureTypeStyle fts)

Method Detail

rules

public List<Rule> rules()

Description copied from interface: FeatureTypeStyle

Rules govern the appearance of any given feature to be styled by this styler.

This is *the* list being used to manage the rules!

Specified by:

rules in interface FeatureTypeStyle

Returns:

the list of rules. can not be null but can be empty.

semanticTypeIdentifiers

public Set<SemanticType> semanticTypeIdentifiers()

Description copied from interface: FeatureTypeStyle

Returns a collection that identifies the more general "type" of geometry that this style is meant to act upon. In the current OGC SE specifications, this is an experimental element and can take only one of the following values:

• generic:point
• generic:line
• generic:polygon
• generic:text
• generic:raster
• generic:any

Specified by:

semanticTypeIdentifiers in interface FeatureTypeStyle

featureTypeNames

public Set<Name> featureTypeNames()

Description copied from interface: FeatureTypeStyle

Returns the names of the feature type that this style is meant to act upon.

In OGC Symbology Encoding define this method to return a single String, and ISO 19117 use a Collection of String. We've choosen ISO because it is more logic that a featureTypeStyle can be applied to multiple featuretypes and not limited to a single one.

Specified by:

featureTypeNames in interface FeatureTypeStyle

Returns:

the name of the feature type that this style is meant to act upon.

getFeatureInstanceIDs

public Id getFeatureInstanceIDs()

Description copied from interface: FeatureTypeStyle

Returns a collection of Object identifying features object.

ISO 19117 extends FeatureTypeStyle be providing this method. This method enable the possibility to use a feature type style on a given list of features only, which is not possible in OGC SE.

Specified by:

getFeatureInstanceIDs in interface FeatureTypeStyle

Returns:

Collection

getDescription

public Description getDescription()

Description copied from interface: FeatureTypeStyle

Description for this style.

Specified by:

getDescription in interface FeatureTypeStyle

Returns:

Human readable description for use in user interfaces

getName

public String getName()

Description copied from interface: FeatureTypeStyle

Returns a name for this style. This can be any string that uniquely identifies this style within a given canvas. It is not meant to be human-friendly. (The "title" property is meant to be human friendly.)

Specified by:

getName in interface FeatureTypeStyle

Returns:

a name for this style.

setName

public void setName(String name)

accept

public Object accept(StyleVisitor visitor,
                     Object data)

Description copied from interface: FeatureTypeStyle

calls the visit method of a StyleVisitor

Specified by:

accept in interface FeatureTypeStyle

Parameters:

visitor - the style visitor

accept

public void accept(StyleVisitor visitor)

clone

public Object clone()

Creates a deep copy clone of the FeatureTypeStyle.

Overrides:

clone in class Object

Returns:

A copy of this object.

See Also:

org.geotools.styling.FeatureTypeStyle#clone()

hashCode

public int hashCode()

Overrides hashCode.

Overrides:

hashCode in class Object

Returns:

The hashcode.

equals

public boolean equals(Object oth)

Compares this FeatureTypeStyleImpl with another.

Two FeatureTypeStyles are equal if they contain equal properties and an equal list of Rules.

Overrides:

equals in class Object

Parameters:

oth - The other FeatureTypeStyleImpl to compare with.

Returns:

True if this and oth are equal.

toString

public String toString()

Overrides:

toString in class Object

setOnlineResource

public void setOnlineResource(OnLineResource online)

Description copied from interface: FeatureTypeStyle

It is common to have a style coming from a external xml file, this method provide a way to get the original source if there is one.

Parameters:

online - location external file defining this style, or null if not available

getOnlineResource

public OnLineResource getOnlineResource()

Description copied from interface: FeatureTypeStyle

It is common to have a style coming from a external xml file, this method provide a way to get the original source if there is one. OGC SLD specification can use this method to know if a style must be written completely or if writing the online resource path is enough.

Specified by:

getOnlineResource in interface FeatureTypeStyle

Returns:

OnlineResource or null

getTransformation

public Expression getTransformation()

Description copied from interface: FeatureTypeStyle

The eventual transformation to be applied before rendering the data (should be an expression taking a feature collection or a grid coverage as the evaluation context and returns a feature collection or a grid coverage as an output)

Specified by:

getTransformation in interface FeatureTypeStyle

Returns:

Transformation or null

setTransformation

public void setTransformation(Expression transformation)

Description copied from interface: FeatureTypeStyle

Sets the eventual transformation to be applied before rendering the data (should be an expression taking a feature collection or a grid coverage as an input and returns a feature collection or a grid coverage as an output)

hasOption

public boolean hasOption(String key)

Description copied from interface: FeatureTypeStyle

Determines if a vendor option with the specific key has been set on this symbolizer.

getOptions

public Map<String,String> getOptions()

Description copied from interface: FeatureTypeStyle

Map of vendor options for the symbolizer.

Client code looking for the existence of a single option should use FeatureTypeStyle.hasOption(String)