Package org.h2gis.geotools

Class H2GISDataStoreFactory

Object

JDBCDataStoreFactory

H2GISDataStoreFactory

All Implemented Interfaces:

DataAccessFactory, DataStoreFactorySpi, Factory

public class H2GISDataStoreFactory
extends JDBCDataStoreFactory

jdbc-h2gis is an extension to connect H2GIS a spatial library that brings spatial support to the H2 Java database.

DataStoreFactory for H2GIS database.

Author:

Nicolas Fortin, Erwan Bocher

Nested Class Summary

Nested classes/interfaces inherited from interface DataAccessFactory

DataAccessFactory.Param

Field Summary

Fields

Modifier and Type	Field	Description
static final DataAccessFactory.Param	ASSOCIATIONS	parameter for how to handle associations
static final DataAccessFactory.Param	AUTO_SERVER	optional parameter to access the same database without having to start the server manually
static final DataAccessFactory.Param	DBTYPE	parameter for database type
static final DataAccessFactory.Param	ENCODE_FUNCTIONS	Enables direct encoding of selected filter functions in sql
static final DataAccessFactory.Param	ESTIMATED_EXTENTS	parameter that enables estimated extends instead of exact ones
static final DataAccessFactory.Param	HOST	optional host parameter
static final DataAccessFactory.Param	PORT	optional port parameter
static final DataAccessFactory.Param	PREPARED_STATEMENTS	Wheter a prepared statements based dialect should be used, or not
static final DataAccessFactory.Param	USER	optional user parameter

Fields inherited from class JDBCDataStoreFactory

BATCH_INSERT_SIZE, CALLBACK_FACTORY, DATABASE, DATASOURCE, EVICTOR_TESTS_PER_RUN, EXPOSE_PK, FETCHSIZE, MAX_OPEN_PREPARED_STATEMENTS, MAXCONN, MAXWAIT, MIN_EVICTABLE_TIME, MINCONN, NAMESPACE, PASSWD, PK_METADATA_TABLE, SCHEMA, SQL_ON_BORROW, SQL_ON_RELEASE, TEST_WHILE_IDLE, TIME_BETWEEN_EVICTOR_RUNS, VALIDATECONN

Constructor Summary

Constructors

Constructor	Description
H2GISDataStoreFactory()

Method Summary

Modifier and Type	Method	Description
protected DataSource	createDataSource(Map<String,?> params, SQLDialect dialect)	Creates the datasource for the data store.
protected JDBCDataStore	createDataStoreInternal(JDBCDataStore dataStore, Map<String,?> params)	Subclass hook to do additional initialization of a newly created datastore.
protected SQLDialect	createSQLDialect(JDBCDataStore dataStore)	Creates the dialect that the datastore uses for communication with the underlying database.
protected SQLDialect	createSQLDialect(JDBCDataStore dataStore, Map<String,?> params)	Creates the dialect that the datastore uses for communication with the underlying database.
protected String	getDatabaseID()	Returns a string to identify the type of the database.
String	getDescription()	Describe the nature of the datasource constructed by this factory.
String	getDisplayName()	Name suitable for display to end user.
protected String	getDriverClassName()	Returns the fully qualified class name of the jdbc driver.
protected String	getJDBCUrl(Map<String,?> params)	Builds up the JDBC url in a jdbc:://:/ Override if you need a different setup
protected String	getValidationQuery()	Override this to return a good validation query (a very quick one, such as one that asks the database what time is it) or return null if the factory does not support validation.
void	setBaseDirectory(File baseDirectory)	Sets the base location to store h2 database files.
protected void	setupParameters(Map<String,Object> parameters)	Sets up the database connection parameters.

Methods inherited from class JDBCDataStoreFactory

canProcess, checkDBType, checkDBType, createDataSource, createDataStore, createNewDataStore, getImplementationHints, getParametersInfo, isAvailable

Methods inherited from class Object

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

Field Details

DBTYPE

public static final DataAccessFactory.Param DBTYPE

parameter for database type

ASSOCIATIONS

public static final DataAccessFactory.Param ASSOCIATIONS

parameter for how to handle associations

USER

public static final DataAccessFactory.Param USER

optional user parameter

HOST

public static final DataAccessFactory.Param HOST

optional host parameter

PORT

public static final DataAccessFactory.Param PORT

optional port parameter

AUTO_SERVER

public static final DataAccessFactory.Param AUTO_SERVER

optional parameter to access the same database without having to start the server manually

ESTIMATED_EXTENTS

public static final DataAccessFactory.Param ESTIMATED_EXTENTS

parameter that enables estimated extends instead of exact ones

PREPARED_STATEMENTS

public static final DataAccessFactory.Param PREPARED_STATEMENTS

Wheter a prepared statements based dialect should be used, or not

ENCODE_FUNCTIONS

public static final DataAccessFactory.Param ENCODE_FUNCTIONS

Enables direct encoding of selected filter functions in sql

Constructor Details

H2GISDataStoreFactory

public H2GISDataStoreFactory()

Method Details

setBaseDirectory

public void setBaseDirectory(File baseDirectory)

Sets the base location to store h2 database files.

Parameters:

baseDirectory - A directory.

setupParameters

protected void setupParameters(Map<String,Object> parameters)

Description copied from class: JDBCDataStoreFactory

Sets up the database connection parameters.

Subclasses may extend, but should not override. This implementation registers the following parameters.

• JDBCDataStoreFactory.HOST
• JDBCDataStoreFactory.PORT
• JDBCDataStoreFactory.DATABASE
• JDBCDataStoreFactory.SCHEMA
• JDBCDataStoreFactory.USER
• JDBCDataStoreFactory.PASSWD

Subclass implementation may remove any parameters from the map, or may overrwrite any parameters in the map.

Overrides:

setupParameters in class JDBCDataStoreFactory

Parameters:

parameters - Map of DataAccessFactory.Param objects.

getDisplayName

public String getDisplayName()

Description copied from interface: DataAccessFactory

Name suitable for display to end user.

A non localized display name for this data store type.

Specified by:

getDisplayName in interface DataAccessFactory

Overrides:

getDisplayName in class JDBCDataStoreFactory

Returns:

A short name suitable for display in a user interface.

getDescription

public String getDescription()

Description copied from interface: DataAccessFactory

Describe the nature of the datasource constructed by this factory.

A non localized description of this data store type.

Returns:

A human readable description that is suitable for inclusion in a list of available datasources.

getDatabaseID

protected String getDatabaseID()

Description copied from class: JDBCDataStoreFactory

Returns a string to identify the type of the database.

Example: 'postgis'.

Specified by:

getDatabaseID in class JDBCDataStoreFactory

getDriverClassName

protected String getDriverClassName()

Description copied from class: JDBCDataStoreFactory

Returns the fully qualified class name of the jdbc driver.

For example: org.postgresql.Driver

Specified by:

getDriverClassName in class JDBCDataStoreFactory

createSQLDialect

protected SQLDialect createSQLDialect(JDBCDataStore dataStore,
 Map<String,?> params)

Description copied from class: JDBCDataStoreFactory

Creates the dialect that the datastore uses for communication with the underlying database.

Overrides:

createSQLDialect in class JDBCDataStoreFactory

Parameters:

dataStore - The datastore.

params - The connection parameters

createSQLDialect

protected SQLDialect createSQLDialect(JDBCDataStore dataStore)

Description copied from class: JDBCDataStoreFactory

Creates the dialect that the datastore uses for communication with the underlying database.

Specified by:

createSQLDialect in class JDBCDataStoreFactory

Parameters:

dataStore - The datastore.

getJDBCUrl

protected String getJDBCUrl(Map<String,?> params)
                     throws IOException

Description copied from class: JDBCDataStoreFactory

Builds up the JDBC url in a jdbc:://:/ Override if you need a different setup

Overrides:

getJDBCUrl in class JDBCDataStoreFactory

Throws:

IOException

createDataSource

protected DataSource createDataSource(Map<String,?> params,
 SQLDialect dialect)
                               throws IOException

Description copied from class: JDBCDataStoreFactory

Creates the datasource for the data store.

This method creates a BasicDataSource instance and populates it as follows:

• poolPreparedStatements -> false
• driverClassName -> JDBCDataStoreFactory.getDriverClassName()
• url -> 'jdbc:<JDBCDataStoreFactory.getDatabaseID()>://<JDBCDataStoreFactory.HOST>/<JDBCDataStoreFactory.DATABASE>'
• username -> <JDBCDataStoreFactory.USER>
• password -> <JDBCDataStoreFactory.PASSWD>

If different behaviour is needed, this method should be extended or overridden.

Overrides:

createDataSource in class JDBCDataStoreFactory

Throws:

IOException

createDataStoreInternal

protected JDBCDataStore createDataStoreInternal(JDBCDataStore dataStore,
 Map<String,?> params)
                                         throws IOException

Description copied from class: JDBCDataStoreFactory

Subclass hook to do additional initialization of a newly created datastore.

Typically subclasses will want to override this method in the case where they provide additional datastore parameters, those should be processed here.

This method is provided with an instance of the datastore. In some cases subclasses may wish to create a new instance of the datastore, for instance in order to wrap the original instance. This is supported but the new datastore must be returned from this method. If not is such the case this method should still return the original passed in.

Overrides:

createDataStoreInternal in class JDBCDataStoreFactory

Parameters:

dataStore - The newly created datastore.

params - THe datastore parameters.

Throws:

IOException

getValidationQuery

protected String getValidationQuery()

Description copied from class: JDBCDataStoreFactory

Override this to return a good validation query (a very quick one, such as one that asks the database what time is it) or return null if the factory does not support validation.

Specified by:

getValidationQuery in class JDBCDataStoreFactory