org.geotools.data.postgis

Class PostgisNGDataStoreFactory

Object

JDBCDataStoreFactory

PostgisNGDataStoreFactory

All Implemented Interfaces:

DataAccessFactory, DataStoreFactorySpi, Factory

public class PostgisNGDataStoreFactory
extends JDBCDataStoreFactory

Nested Class Summary

Nested classes/interfaces inherited from interface DataAccessFactory

DataAccessFactory.Param

Field Summary

Fields

Modifier and Type	Field and Description
static DataAccessFactory.Param	CREATE_DB_IF_MISSING attempt to create the database if missing
static DataAccessFactory.Param	CREATE_PARAMS attempt to create the database if missing
static DataAccessFactory.Param	DBTYPE parameter for database type
static DataAccessFactory.Param	ENCODE_FUNCTIONS Enables direct encoding of selected filter functions in sql
static DataAccessFactory.Param	ESTIMATED_EXTENTS parameter that enables estimated extends instead of exact ones
static DataAccessFactory.Param	LOOSEBBOX enables using && in bbox queries
static DataAccessFactory.Param	PORT parameter for database port
static DataAccessFactory.Param	PREPARED_STATEMENTS Wheter a prepared statements based dialect should be used, or not
static DataAccessFactory.Param	SCHEMA parameter for database schema
static DataAccessFactory.Param	SIMPLIFY Enables usage of ST_Simplify when the queries contain geometry simplification hints

Fields inherited from class JDBCDataStoreFactory

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

Constructor Summary

Constructors

Constructor and Description
PostgisNGDataStoreFactory()

Method Summary

Modifier and Type	Method and Description
protected boolean	checkDBType(Map params)
protected DataSource	createDataSource(Map params, SQLDialect dialect) Creates the datasource for the data store.
protected JDBCDataStore	createDataStoreInternal(JDBCDataStore dataStore, Map 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.
void	dropDatabase(Map<String,Object> params) Drops the database specified in the connection params.
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 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.
protected void	setupParameters(Map parameters) Sets up the database connection parameters.

Methods inherited from class JDBCDataStoreFactory

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

Methods inherited from class Object

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

Field Detail

DBTYPE

public static final DataAccessFactory.Param DBTYPE

parameter for database type

LOOSEBBOX

public static final DataAccessFactory.Param LOOSEBBOX

enables using && in bbox queries

ESTIMATED_EXTENTS

public static final DataAccessFactory.Param ESTIMATED_EXTENTS

parameter that enables estimated extends instead of exact ones

PORT

public static final DataAccessFactory.Param PORT

parameter for database port

SCHEMA

public static final DataAccessFactory.Param SCHEMA

parameter for database schema

CREATE_DB_IF_MISSING

public static final DataAccessFactory.Param CREATE_DB_IF_MISSING

attempt to create the database if missing

CREATE_PARAMS

public static final DataAccessFactory.Param CREATE_PARAMS

attempt to create the database if missing

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

SIMPLIFY

public static final DataAccessFactory.Param SIMPLIFY

Enables usage of ST_Simplify when the queries contain geometry simplification hints

Constructor Detail

PostgisNGDataStoreFactory

public PostgisNGDataStoreFactory()

Method Detail

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.

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

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.

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

checkDBType

protected boolean checkDBType(Map params)

Overrides:

checkDBType in class JDBCDataStoreFactory

createDataStoreInternal

protected JDBCDataStore createDataStoreInternal(JDBCDataStore dataStore,
                                                Map 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

setupParameters

protected void setupParameters(Map 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 Param objects.

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

Returns:

getJDBCUrl

protected String getJDBCUrl(Map 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

Returns:

Throws:

IOException

createDataSource

protected DataSource createDataSource(Map 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

dropDatabase

public void dropDatabase(Map<String,Object> params)
                  throws IOException

Drops the database specified in the connection params. The database must not be in use, and the user must have the necessary privileges

Parameters:

params -

Throws:

IOException