Package com.vividsolutions.jump.datastore.spatialdatabases

Class SpatialDatabasesSQLBuilder

java.lang.Object

com.vividsolutions.jump.datastore.spatialdatabases.SpatialDatabasesSQLBuilder

Direct Known Subclasses:

H2SQLBuilder, MariadbSQLBuilder, OracleSQLBuilder, PostgisSQLBuilder, SpatialiteSQLBuilder

public class SpatialDatabasesSQLBuilder
extends Object

Creates SQL query strings for a Spatial database. To be overloaded by classes implementing a spatial database support.

Field Summary

Fields

Modifier and Type	Field	Description
protected String[]	colNames
protected SpatialDatabasesDSMetadata	dbMetadata
protected SpatialReferenceSystemID	defaultSRID

Constructor Summary

Constructors

Constructor	Description
SpatialDatabasesSQLBuilder(SpatialDatabasesDSMetadata dbMetadata, SpatialReferenceSystemID defaultSRID, String[] colNames)

Method Summary

Modifier and Type	Method	Description
protected String	buildBoxFilter(FilterQuery query)
String	getCheckSQL(DataStoreLayer dsLayer)	Builds a check SQL query for the given DataStoreLayer.
protected String	getColumnListSpecifier(String[] colNames, String geomColName)	Returns the string representing a SQL column definition.
protected SpatialDatabasesDSMetadata	getDbMetadata()
String	getSQL(FilterQuery query)	Builds a valid SQL spatial query with the given spatial filter.
protected String	getSRID(SpatialReferenceSystemID querySRID)

Methods inherited from class java.lang.Object

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

Field Detail

defaultSRID

protected SpatialReferenceSystemID defaultSRID

colNames

protected String[] colNames

dbMetadata

protected SpatialDatabasesDSMetadata dbMetadata

Constructor Detail

SpatialDatabasesSQLBuilder

public SpatialDatabasesSQLBuilder(SpatialDatabasesDSMetadata dbMetadata,
                                  SpatialReferenceSystemID defaultSRID,
                                  String[] colNames)

Method Detail

getSQL

public String getSQL(FilterQuery query)

Builds a valid SQL spatial query with the given spatial filter.

Parameters:

query - the filter query

Returns:

a SQL query to get column names

getCheckSQL

public String getCheckSQL(DataStoreLayer dsLayer)

Builds a check SQL query for the given DataStoreLayer.

Parameters:

dsLayer - the @link DataStoreLayer to test

Returns:

a SQL query forced to limit 0 to test the layer source

getColumnListSpecifier

protected String getColumnListSpecifier(String[] colNames,
                                        String geomColName)

Returns the string representing a SQL column definition. Implementors should take care of column names (case, quotes)

Parameters:

colNames - list of column names

geomColName - name of the geometry column

Returns:

column list

getDbMetadata

protected SpatialDatabasesDSMetadata getDbMetadata()

buildBoxFilter

protected String buildBoxFilter(FilterQuery query)

getSRID

protected String getSRID(SpatialReferenceSystemID querySRID)