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Java Source Code / Java Documentation » GIS » GeoTools 2.4.1 » org.geotools.data.shapefile

Source Cross Reference Class Diagram Java Document (Java Doc)

java.lang .Object

org.geotools.data.shapefile .ShapefileDataStoreFactory

All known Subclasses:   org.geotools.data.shapefile.indexed .IndexedShapefileDataStoreFactory,
ShapefileDataStoreFactory
public class ShapefileDataStoreFactory implements FileDataStoreFactorySpi(Code)
Implementation of the DataStore service provider interface for Shapefiles.
The specific implementation of ShapefileDataStore created by this class is not specified. For more information on the connection parameters please review the following public Param constants.

URLP
NAMESPACEP
CREATE_SPATIAL_INDEX
MEMORY_MAPPED
DBFCHARSET

author:
   Chris Holmes, TOPP
version:
   $Id: ShapefileDataStoreFactory.java 29501 2008-02-28 02:36:47Z jgarnett $

Field Summary
final public static Param CREATE_SPATIAL_INDEX

final public static Param DBFCHARSET

final protected static Logger LOGGER

final public static Param MEMORY_MAPPED

final public static Param NAMESPACEP

final public static Param URLP
     url to the .shp file.

Method Summary
public boolean canProcess(Map params)
     Takes a map of parameters which describes how to access a DataStore and determines if it can be read by the ShapefileDataStore or IndexedShapefileDataStore implementations.
Parameters:
  params - A map of parameters describing the location of a datastore.Files should be pointed to by a 'url' param.
public boolean canProcess(URL f)

public DataStore createDataStore(Map params)
     Returns an instance of DataStore iff the resource pointed to the Map of paramers can be handled as a shapefile.
The specific implementation of ShapefileDataStore returned is not specified, and depends on the parameters given.
public DataStore createDataStore(URL url)
     We may need to create a new datastore if the provided file does not exist.
public DataStore createDataStore(URL url, boolean memorymapped)

DataStore createDataStoreInstance(Map params)
     Will create the correct implementation of ShapefileDataStore for the provided parameters.
public DataStore createNewDataStore(Map params)
     Creates a new DataStore - for a file that does not exist yet.
This method has different logic than createDataStore.
DataStore createNewShapefile(Map params)
     Will create a new shapefile baed on the provided parameters.
public String getDescription()
     Describes the type of data the datastore returned by this factory works with.
public String getDisplayName()

public String[] getFileExtensions()

public Map getImplementationHints()
     Returns the implementation hints.
public Param[] getParametersInfo()
     Describe parameters.
public String getTypeName(URL url)

public boolean isAvailable()
     Test to see if this datastore is available, if it has all the appropriate libraries to construct a datastore.
public static URL toDbfURL(URL url)

public static String toFilename(URL url)
     Convert a URL to a String that is suitable for manipulation of its extension (generally the last three characters of the file). This uses URL.toExternalForm() in order to preserve valuable information about the URL's Authority.
Parameters:
  url - the url to convert to a String.
public static URL toFixURL(URL url)

public static URL toGrxURL(URL url)

public static URL toPrjURL(URL url)

public static URL toQixURL(URL url)

public static URL toShpURL(URL url)

public static URL toShxURL(URL url)

public static URL toXmlURL(URL url)


Field Detail
CREATE_SPATIAL_INDEX
final public static Param CREATE_SPATIAL_INDEX(Code)
Optional - Enable/disable the automatic creation of spatial index

DBFCHARSET
final public static Param DBFCHARSET(Code)
Optional - character used to decode strings from the DBF file

LOGGER
final protected static Logger LOGGER(Code)

MEMORY_MAPPED
final public static Param MEMORY_MAPPED(Code)
Optional - enable/disable the use of memory-mapped io

NAMESPACEP
final public static Param NAMESPACEP(Code)
Optional - uri of the FeatureType's namespace

URLP
final public static Param URLP(Code)
url to the .shp file.

Method Detail
canProcess
public boolean canProcess(Map params)(Code)
Takes a map of parameters which describes how to access a DataStore and determines if it can be read by the ShapefileDataStore or IndexedShapefileDataStore implementations.
Parameters:
  params - A map of parameters describing the location of a datastore.Files should be pointed to by a 'url' param. true iff params contains a url param which points to a fileending in shp

canProcess
public boolean canProcess(URL f)(Code)

See Also:   org.geotools.data.dir.FileDataStoreFactorySpi.canProcess(java.net.URL)

createDataStore
public DataStore createDataStore(Map params) throws IOException(Code)
Returns an instance of DataStore iff the resource pointed to the Map of paramers can be handled as a shapefile.
The specific implementation of ShapefileDataStore returned is not specified, and depends on the parameters given. For more information please review the public static Param instances available for this class.

URLP
NAMESPACEP
CREATE_SPATIAL_INDEX
MEMORY_MAPPED
DBFCHARSET

Parameters:
  params - A param list with information on the location of arestore. For shapefiles this should contain a 'url' param whichpoints to a file which ends in shp. DataStore A ShapefileDatastore
throws:
  IOException - If a connection error (such as the file not existing occurs)
throws:
  DataSourceException - Thrown if the datastore which is createdcannot be attached to the restore specified in params.

createDataStore
public DataStore createDataStore(URL url) throws IOException(Code)
We may need to create a new datastore if the provided file does not exist.
See Also:   org.geotools.data.dir.FileDataStoreFactorySpi.createDataStore(java.net.URL)

createDataStore
public DataStore createDataStore(URL url, boolean memorymapped) throws IOException(Code)

See Also:   org.geotools.data.dir.FileDataStoreFactorySpi.createDataStore(java.net.URL)

createDataStoreInstance
DataStore createDataStoreInstance(Map params) throws IOException(Code)
Will create the correct implementation of ShapefileDataStore for the provided parameters.
Parameters:
  params - Map of parameters
throws:
  IOException - If the specified shapefle could not be accessed
throws:
  UnsupportedOperationException -

createNewDataStore
public DataStore createNewDataStore(Map params) throws IOException(Code)
Creates a new DataStore - for a file that does not exist yet.
This method has different logic than createDataStore. It is willing to be memory mapped, and generate an index for a local file that does not exist yet.

createNewShapefile
DataStore createNewShapefile(Map params) throws IOException(Code)
Will create a new shapefile baed on the provided parameters.
Parameters:
  params - Map of parameters
throws:
  IOException - If the filename is not valid.
throws:
  UnsupportedOperationException -

getDescription
public String getDescription()(Code)
Describes the type of data the datastore returned by this factory works with. String a human readable description of the type of restoresupported by this datastore.

getDisplayName
public String getDisplayName()(Code)

getFileExtensions
public String[] getFileExtensions()(Code)

See Also:   org.geotools.data.dir.FileDataStoreFactorySpi.getFileExtensions

getImplementationHints
public Map getImplementationHints()(Code)
Returns the implementation hints. The default implementation returns an empty map.
When we have FeatureFactory, GeometryFactory and so on hooked up this map will return Hints we paid attention too when we were constructed. An empty map.

getParametersInfo
public Param[] getParametersInfo()(Code)
Describe parameters.
See Also:   org.geotools.data.DataStoreFactorySpi.getParametersInfo

getTypeName
public String getTypeName(URL url) throws IOException(Code)

See Also:   org.geotools.data.dir.FileDataStoreFactorySpi.getTypeName(java.net.URL)

isAvailable
public boolean isAvailable()(Code)
Test to see if this datastore is available, if it has all the appropriate libraries to construct a datastore. This datastore just checks for the ShapefileDataStore, IndexedShapefileDataStore and Geometry implementations. true if and only if this factory is available to createDataStores.

toDbfURL
public static URL toDbfURL(URL url) throws java.net.MalformedURLException(Code)
Figure out the URL for the "dbf" file

toFilename
public static String toFilename(URL url) throws MalformedURLException(Code)
Convert a URL to a String that is suitable for manipulation of its extension (generally the last three characters of the file). This uses URL.toExternalForm() in order to preserve valuable information about the URL's Authority.
Parameters:
  url - the url to convert to a String. Must not be null. a String representation of the URL
throws:
  MalformedURLException - if the url is invalid

toFixURL
public static URL toFixURL(URL url) throws java.net.MalformedURLException(Code)
Figure out the URL for the "fix" file

toGrxURL
public static URL toGrxURL(URL url) throws java.net.MalformedURLException(Code)
Figure out the URL for the "grx" file

toPrjURL
public static URL toPrjURL(URL url) throws java.net.MalformedURLException(Code)
Figure out the URL for the "prj" file

toQixURL
public static URL toQixURL(URL url) throws java.net.MalformedURLException(Code)
Figure out the URL for the "qix" file

toShpURL
public static URL toShpURL(URL url) throws java.net.MalformedURLException(Code)
Figure out the URL for the "shp" file

toShxURL
public static URL toShxURL(URL url) throws java.net.MalformedURLException(Code)
Figure out the URL for the "shx" file

toXmlURL
public static URL toXmlURL(URL url) throws java.net.MalformedURLException(Code)
Figure out the URL for the "prj" file

Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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