com.ontimize.util.gis.server.dataproviders
Class ShapefileDataProvider

java.lang.Object
  com.ontimize.util.gis.server.dataproviders.ShapefileDataProvider

All Implemented Interfaces:

IDataAccess, IDataProvider

public class ShapefileDataProvider
extends java.lang.Object
implements IDataAccess

Shapefile data provider. It uses ESRI Shapefiles (.shp) as geographic data source.

Layer data will be the union between the information contained on the .dfb file and
the geographic data.

Xml definition parameters:

Name	Description	Required
fileLocation	Shapefile file location	Yes
geometry_type	Geometry type used by the layer: "point", "line" or "polygon"	Yes

Sample definition code:

<DataProvider
     class="com.ontimize.util.gis.server.dataproviders.ShapefileDataProvider"
     type="vectorial">
     <Attribute name="fileLocation" value="maps/shapes/provincias.shp" />
     <Attribute name="geometry_type" value="polygon" />
</DataProvider>

Field Summary

protected org.geotools.data.shapefile.ShapefileDataStore	dataStore
protected static java.lang.String	FILE_LOCATION
protected java.lang.String	fileLocation
protected org.geotools.data.FeatureSource	fs
(package private) com.vividsolutions.jts.geom.GeometryFactory	gf
protected java.io.File	shapefile
protected java.net.URL	urlLocation

Constructor Summary

ShapefileDataProvider()

ShapefileDataProvider(java.util.Hashtable parameters)

Method Summary

void	delete(java.lang.Object keysValues, int sessionId) This method must implement a standard delete operation over the set of records defined by keysValues.
void	initProvider(java.util.Hashtable<java.lang.String,java.lang.Object> parameters)
java.lang.Object	insert(java.lang.Object attributesValues, int sessionId) This method must implement a standard insert operation with the data contained in attributesValues parameter.
java.lang.Object	query(java.lang.Object keysValues, java.lang.Object attributes, int sessionId) This method must implement a standard query operation returning the set of data that matches the conditions specified by the keysValues parameter.
protected java.util.Vector<com.vividsolutions.jts.geom.Geometry>	reprojectGeometryVector(java.util.Vector<com.vividsolutions.jts.geom.Geometry> sourceVector, java.util.Hashtable appliedFilters)
void	update(java.lang.Object keysValues, java.lang.Object attributesValues, int sessionId) This method must implement a standard update operation with the data specified in attributesValues over the set of records defined by keysValues.

Methods inherited from class java.lang.Object

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

Field Detail

FILE_LOCATION

protected static final java.lang.String FILE_LOCATION

See Also:

Constant Field Values

fileLocation

protected java.lang.String fileLocation

urlLocation

protected java.net.URL urlLocation

shapefile

protected java.io.File shapefile

dataStore

protected org.geotools.data.shapefile.ShapefileDataStore dataStore

fs

protected org.geotools.data.FeatureSource fs

gf

com.vividsolutions.jts.geom.GeometryFactory gf

Constructor Detail

ShapefileDataProvider

public ShapefileDataProvider()

ShapefileDataProvider

public ShapefileDataProvider(java.util.Hashtable parameters)

Method Detail

delete

public void delete(java.lang.Object keysValues,
                   int sessionId)
            throws java.lang.Exception

Description copied from interface: IDataAccess

This method must implement a standard delete operation over the set of records defined by keysValues. So, only the records that comply with the conditions specified by keysValues will be deleted.

Specified by:

delete in interface IDataAccess

Parameters:

keysValues - The conditions that the records to be deleted must fulfill

sessionId - Session Id for this user

Throws:

java.lang.Exception

insert

public java.lang.Object insert(java.lang.Object attributesValues,
                               int sessionId)
                        throws java.lang.Exception

Description copied from interface: IDataAccess

This method must implement a standard insert operation with the data contained in attributesValues parameter.

Specified by:

insert in interface IDataAccess

Parameters:

attributesValues - Data to store

sessionId - Session Id for this user

Throws:

java.lang.Exception

update

public void update(java.lang.Object keysValues,
                   java.lang.Object attributesValues,
                   int sessionId)
            throws java.lang.Exception

Description copied from interface: IDataAccess

This method must implement a standard update operation with the data specified in attributesValues over the set of records defined by keysValues. So, only the records that comply with the conditions specified by keysValues will be updated to the new values specified by attributesValues.

Specified by:

update in interface IDataAccess

Parameters:

keysValues - The conditions that the records to be updated must fulfill

attributesValues - The data for updating the records to

sessionId - Session Id for this user

Throws:

java.lang.Exception

query

public java.lang.Object query(java.lang.Object keysValues,
                              java.lang.Object attributes,
                              int sessionId)
                       throws java.lang.Exception

Description copied from interface: IDataProvider

This method must implement a standard query operation returning the set of data that matches the conditions specified by the keysValues parameter. The attributes defines which attributes (or columns if data is obtained from a database) must be recovered, and keysValues specifies which set of records must be recovered.

Specified by:

query in interface IDataProvider

Parameters:

keysValues - Identifiers for the data

attributes - Data attributes to query

sessionId - Session Id for this user

Returns:

Requested data

Throws:

java.lang.Exception

initProvider

public void initProvider(java.util.Hashtable<java.lang.String,java.lang.Object> parameters)

Specified by:

initProvider in interface IDataProvider

reprojectGeometryVector

protected java.util.Vector<com.vividsolutions.jts.geom.Geometry> reprojectGeometryVector(java.util.Vector<com.vividsolutions.jts.geom.Geometry> sourceVector,
                                                                                         java.util.Hashtable appliedFilters)