com.hp.hpl.jena.util
Class ModelLoader

java.lang.Object
  com.hp.hpl.jena.util.ModelLoader

public class ModelLoader

extends java.lang.Object

A set of static convenience methods for getting models The loader will guess the language/type of the model using guessLang

Version:

$Id: ModelLoader.java,v 1.10 2003/07/15 13:26:47 andy_seaborne Exp $

Author:

Andy Seaborne

Field Summary

static java.lang.String	basename
static java.lang.String	defaultLanguage
static java.lang.String	langBDB
static java.lang.String	langN3
static java.lang.String	langNTriple
static java.lang.String	langSQL
static java.lang.String	langXML
static java.lang.String	langXMLAbbrev
static boolean	useARP

Constructor Summary

ModelLoader()

Method Summary

static Model	connectToDB(java.lang.String urlStr, java.lang.String dbUser, java.lang.String dbPassword, java.lang.String modelName, java.lang.String dbType, java.lang.String driverName) Connect to a database.
static java.lang.String	guessLang(java.lang.String urlStr) Guess the language/type of model data If the URI of the model starts jdbc: it is assumed to be an RDB model If the URI ends ".rdf", it is assumed to be RDF/XML If the URI end .nt, it is assumed to be N-Triples If the URI end .bdbd, it is assumed to be BerkleyDB model
static Model	loadModel(Model model, java.lang.String urlStr, java.lang.String lang) Load a model from a file into a model.
static Model	loadModel(java.lang.String urlStr) Load a model
static Model	loadModel(java.lang.String urlStr, java.lang.String lang) Load a model or attached a persistent store (but not a database).
static Model	loadModel(java.lang.String urlStr, java.lang.String lang, java.lang.String dbUser, java.lang.String dbPassword, java.lang.String modelName, java.lang.String dbType, java.lang.String driver) Load a model or attached a persistent store.
static void	setFileBase(java.lang.String _basename) Sets the directory used in resolving URIs that are raw file names (no file:) This is a global change when the ModelLoader is used.

Methods inherited from class java.lang.Object

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

Field Detail

langXML

public static final java.lang.String langXML

See Also:

Constant Field Values

langXMLAbbrev

public static final java.lang.String langXMLAbbrev

See Also:

Constant Field Values

langNTriple

public static final java.lang.String langNTriple

See Also:

Constant Field Values

langN3

public static final java.lang.String langN3

See Also:

Constant Field Values

langBDB

public static final java.lang.String langBDB

See Also:

Constant Field Values

langSQL

public static final java.lang.String langSQL

See Also:

Constant Field Values

defaultLanguage

public static java.lang.String defaultLanguage

basename

public static java.lang.String basename

useARP

public static boolean useARP

Constructor Detail

ModelLoader

public ModelLoader()

Method Detail

loadModel

public static Model loadModel(java.lang.String urlStr)

Load a model

Parameters:

urlStr - The URL or file name of the model

loadModel

public static Model loadModel(java.lang.String urlStr,
                              java.lang.String lang)

Load a model or attached a persistent store (but not a database).

Parameters:

urlStr - The URL or file name of the model

lang - The language of the data - if null, the system guesses

loadModel

public static Model loadModel(java.lang.String urlStr,
                              java.lang.String lang,
                              java.lang.String dbUser,
                              java.lang.String dbPassword,
                              java.lang.String modelName,
                              java.lang.String dbType,
                              java.lang.String driver)

Load a model or attached a persistent store. Tries to guess syntax type. Database paramters only needed if its a database.

Parameters:

urlStr - The URL or file name of the model

lang - The language of the data - if null, the system guesses

dbUser - Database user name (for RDB/JDBC)

dbPassword - Database password (for RDB/JDBC)

modelName - The name of the model

dbType - Database type (e.g. MySQL)

driver - JDBC driver to load.

Returns:

Model

loadModel

public static Model loadModel(Model model,
                              java.lang.String urlStr,
                              java.lang.String lang)
                       throws java.io.FileNotFoundException

Load a model from a file into a model.

Parameters:

model - Model to read into

urlStr - URL (or filename) to read from

lang - Null mean guess based on the URI String

Returns:

Returns the model passed in.

Throws:

java.io.FileNotFoundException

connectToDB

public static Model connectToDB(java.lang.String urlStr,
                                java.lang.String dbUser,
                                java.lang.String dbPassword,
                                java.lang.String modelName,
                                java.lang.String dbType,
                                java.lang.String driverName)

Connect to a database.

Parameters:

urlStr -

dbUser -

dbPassword -

dbType -

driverName - Load this driver (if not null)

Returns:

Model

guessLang

public static java.lang.String guessLang(java.lang.String urlStr)

Guess the language/type of model data

• If the URI of the model starts jdbc: it is assumed to be an RDB model
• If the URI ends ".rdf", it is assumed to be RDF/XML
• If the URI end .nt, it is assumed to be N-Triples
• If the URI end .bdbd, it is assumed to be BerkleyDB model

setFileBase

public static void setFileBase(java.lang.String _basename)

Sets the directory used in resolving URIs that are raw file names (no file:) This is a global change when the ModelLoader is used.