com.hp.hpl.mesa.rdf.jena.rdb
Class DriverOracleMMGeneric

java.lang.Object
  |
  +--com.hp.hpl.mesa.rdf.jena.rdb.DriverGenericGeneric
        |
        +--com.hp.hpl.mesa.rdf.jena.rdb.DriverGenericMMGeneric
              |
              +--com.hp.hpl.mesa.rdf.jena.rdb.DriverOracleMMGeneric

All Implemented Interfaces:

IRDBDriver

public class DriverOracleMMGeneric

extends DriverGenericMMGeneric

implements IRDBDriver

Customize the MMGeneric driver for use with Oracle. The key issues with Oracle are: (1) Possible return of bignums for IDs - now handled in generic driver (2) Empty strings are stored as nulls and so do not match other empty strings, this breaks all the "langauge" field processing in literals in several ways.

Version:

$Revision: 1.1 $ on $Date: 2002/03/01 14:26:39 $

Author:

Dave Reynolds

Fields inherited from class com.hp.hpl.mesa.rdf.jena.rdb.DriverGenericGeneric

ANON_NAMESPACE

Constructor Summary

DriverOracleMMGeneric()
Create a bare instance of the driver.

Method Summary

Literal	getLiteral(IDBID id) Fetch a literal just knowing its literal rdb-id.
IDBID	getLiteralID(Literal l) Return the database ID for the literal, if it exists
IDBID	getResourceID(Resource resource) Lookup the unique ID for a resource.
java.lang.Object	wrapFlag(boolean flag) Wrap up a boolean flag as a object which the jdbc driver can assert into a boolean/short column

Methods inherited from class com.hp.hpl.mesa.rdf.jena.rdb.DriverGenericMMGeneric

allocateModelID, getModelID, listModels, supportsMultipleModels

Methods inherited from class com.hp.hpl.mesa.rdf.jena.rdb.DriverGenericGeneric

addStatement, attachStore, cleanDB, close, createConstraints, deleteStatement, detachStore, formatDB, getConnection, getNamespace, getProperty, getProperty, getResource, getResource, getSQLCache, hintPropertyTable, isDBFormatOK, isStatementPresent, listNamespaces, listStatements, listStatements, listSubjects, loadDatabaseDriver, loadProperties, makeResource, saveProperties, setConnection, toString, wrapDBID

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.hp.hpl.mesa.rdf.jena.rdb.IRDBDriver

addStatement, allocateModelID, attachStore, cleanDB, close, createConstraints, deleteStatement, detachStore, formatDB, getConnection, getModelID, getNamespace, getProperty, getProperty, getResource, getResource, getSQLCache, hintPropertyTable, isDBFormatOK, isStatementPresent, listModels, listNamespaces, listStatements, listStatements, listSubjects, loadProperties, makeResource, setConnection, supportsMultipleModels, wrapDBID

Constructor Detail

DriverOracleMMGeneric

public DriverOracleMMGeneric()

Create a bare instance of the driver. It is not functional until a database connection has been supplied via setConnection.

Method Detail

getLiteralID

public IDBID getLiteralID(Literal l)
                   throws RDFRDBException

Return the database ID for the literal, if it exists

Specified by:

getLiteralID in interface IRDBDriver

Overrides:

getLiteralID in class DriverGenericGeneric

wrapFlag

public java.lang.Object wrapFlag(boolean flag)

Wrap up a boolean flag as a object which the jdbc driver can assert into a boolean/short column

Overrides:

wrapFlag in class DriverGenericGeneric

getLiteral

public Literal getLiteral(IDBID id)
                   throws RDFException

Fetch a literal just knowing its literal rdb-id. Can be null if the ID can from a hash function and literal isn't registered yet. Patches up any mangled lang fields from Oracle.

Specified by:

getLiteral in interface IRDBDriver

Overrides:

getLiteral in class DriverGenericGeneric

getResourceID

public IDBID getResourceID(Resource resource)
                    throws RDFException

Lookup the unique ID for a resource. Return null if it does not have one yet.

Specified by:

getResourceID in interface IRDBDriver

Overrides:

getResourceID in class DriverGenericGeneric