org.n52.oxf.layer
Class FeatureLayer

java.lang.Object
  org.n52.oxf.layer.AbstractLayer
      org.n52.oxf.layer.FeatureLayer

All Implemented Interfaces:

EventListener, IContextLayer, IFeatureLayer, IContextSerializableXML, IEventEmitter, IEventListener

public class FeatureLayer
extends AbstractLayer
implements IFeatureLayer

A layer to paint the given features if no requests to services are needed for updates. This class initializes the feature collection on instantiation and just renders these again and again.

Author:

Daniel NĂ¼st

Field Summary

Fields inherited from class org.n52.oxf.layer.AbstractLayer

broken, description, eventSupport, hidden, idName, layerVisualization, parameterContainer, renderer, timeStamp, title

Constructor Summary

FeatureLayer(String identificationName, String title, String layerSourceTitle, String layerSourceType, IFeatureDataRenderer renderer, IFeaturePicker featurePicker, OXFFeatureCollection collection)

Method Summary

void	clearSelection()
void	eventCaught(OXFEvent event) This method gets called when an OXFEvent is caught.
IBoundingBox	getBBox()
OXFFeatureCollection	getFeatureCollection()
IFeatureStore	getFeatureStore()
String	getLayerSourceTitle()
String	getLayerSourceType()
IVisualization	getLayerVisualization()
FeatureLayerProcessor	getProcessor()
IFeatureDataRenderer	getRenderer()
Set<OXFFeature>	getSelectedFeatures()
String	getSrs()
Set<OXFFeature>	pickFeature(int x, int y) This method returns a Set of all OXFFeatures of this Layer drawn at screen-position (x, y).
Set<OXFFeature>	pickFeature(int llX, int llY, int urX, int urY) This method returns a Set of all OXFFeatures of this Layer drawn inside the Screen-BoundingBox specified by the lowerLeft-corner (llX, llY) and the upperRight-corner (urX, urY).
void	serializeToContext(StringBuffer sb) serializes the implementing class (downwardly) compatible to the "Web Map Context Documents" Specification (OGC 05-005) of the OGC in version 1.1.0.
void	setFeatureCollection(OXFFeatureCollection featureCollection) sets the actual collection of features.
void	setSelectedFeatures(Set<OXFFeature> selectedFeatures) this method should be primarly be invoked by the method selectFeatures() of the LayerContext class.

Methods inherited from class org.n52.oxf.layer.AbstractLayer

addEventListener, getDescription, getIDName, getParameterContainer, getTimeStamp, getTitle, isBroken, isHidden, refreshParameterContainer, removeEventListener, setBroken, setHidden, setIDName, setLayerVisualization

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.n52.oxf.layer.IContextLayer

getDescription, getIDName, getParameterContainer, getTimeStamp, getTitle, isBroken, isHidden, refreshParameterContainer, setHidden

Methods inherited from interface org.n52.oxf.util.IEventEmitter

addEventListener, removeEventListener

Constructor Detail

FeatureLayer

public FeatureLayer(String identificationName,
                    String title,
                    String layerSourceTitle,
                    String layerSourceType,
                    IFeatureDataRenderer renderer,
                    IFeaturePicker featurePicker,
                    OXFFeatureCollection collection)

Method Detail

getLayerVisualization

public IVisualization getLayerVisualization()

Specified by:

getLayerVisualization in interface IContextLayer

Overrides:

getLayerVisualization in class AbstractLayer

eventCaught

public void eventCaught(OXFEvent event)
                 throws OXFEventException

Description copied from interface: IEventListener

This method gets called when an OXFEvent is caught.

Specified by:

eventCaught in interface IEventListener

Overrides:

eventCaught in class AbstractLayer

Parameters:

event - A OXFEvent object describing the event source and the property that has changed.

Throws:

OXFEventException

getProcessor

public FeatureLayerProcessor getProcessor()

Specified by:

getProcessor in class AbstractLayer

Returns:

an LayerProcessor which can be used to execute the "request - and - render - data"-process in a separate Thread.

clearSelection

public void clearSelection()

Specified by:

clearSelection in interface IFeatureLayer

getFeatureCollection

public OXFFeatureCollection getFeatureCollection()

Specified by:

getFeatureCollection in interface IFeatureLayer

Returns:

the actual collection of features that will be portrayed in this layer. A null value is allowed and indicates that nothing will be drawn.

getFeatureStore

public IFeatureStore getFeatureStore()

Specified by:

getFeatureStore in interface IFeatureLayer

Returns:

getSelectedFeatures

public Set<OXFFeature> getSelectedFeatures()

Specified by:

getSelectedFeatures in interface IFeatureLayer

Returns:

the currently selected Set of features in this Layer.

pickFeature

public Set<OXFFeature> pickFeature(int x,
                                   int y)

Description copied from interface: IFeatureLayer

This method returns a Set of all OXFFeatures of this Layer drawn at screen-position (x, y).

Specified by:

pickFeature in interface IFeatureLayer

Returns:

a List of all OXFFeatures of this Layer drawn at screen-position (x, y).

pickFeature

public Set<OXFFeature> pickFeature(int llX,
                                   int llY,
                                   int urX,
                                   int urY)

Description copied from interface: IFeatureLayer

This method returns a Set of all OXFFeatures of this Layer drawn inside the Screen-BoundingBox specified by the lowerLeft-corner (llX, llY) and the upperRight-corner (urX, urY).

Specified by:

pickFeature in interface IFeatureLayer

Returns:

setFeatureCollection

public void setFeatureCollection(OXFFeatureCollection featureCollection)

Description copied from interface: IFeatureLayer

sets the actual collection of features.

Specified by:

setFeatureCollection in interface IFeatureLayer

setSelectedFeatures

public void setSelectedFeatures(Set<OXFFeature> selectedFeatures)

Description copied from interface: IFeatureLayer

this method should be primarly be invoked by the method selectFeatures() of the LayerContext class. That will clear all current selections.

Specified by:

setSelectedFeatures in interface IFeatureLayer

getBBox

public IBoundingBox getBBox()

Specified by:

getBBox in interface IContextLayer

Returns:

the BBOX associated with this Layer or null if there is none.

getLayerSourceTitle

public String getLayerSourceTitle()

Specified by:

getLayerSourceTitle in interface IContextLayer

getLayerSourceType

public String getLayerSourceType()

Specified by:

getLayerSourceType in interface IContextLayer

getSrs

public String getSrs()

Specified by:

getSrs in interface IContextLayer

Returns:

the SRS associated with this Layer or null if there is none.

serializeToContext

public void serializeToContext(StringBuffer sb)

Description copied from interface: IContextSerializableXML

serializes the implementing class (downwardly) compatible to the "Web Map Context Documents" Specification (OGC 05-005) of the OGC in version 1.1.0.

Specified by:

serializeToContext in interface IContextSerializableXML

getRenderer

public IFeatureDataRenderer getRenderer()

Specified by:

getRenderer in interface IContextLayer

Overrides:

getRenderer in class AbstractLayer