Package com.powsybl.triplestore.impl.jena

Class TripleStoreJena

java.lang.Object

com.powsybl.triplestore.api.AbstractPowsyblTripleStore

com.powsybl.triplestore.impl.jena.TripleStoreJena

All Implemented Interfaces:

TripleStore

public class TripleStoreJena
extends AbstractPowsyblTripleStore

Author:

Luma Zamarreño

Constructor Summary

Constructors

Constructor	Description
TripleStoreJena()

Method Summary

Modifier and Type	Method	Description
void	add(TripleStore source)	Add all statements of the source Triplestore to this Triplestore.
String	add(String contextName, String objNs, String objType, PropertyBag properties)	Add to the triple store statements for creating a new resource, instance of a specific class
void	add(String contextName, String objNs, String objType, PropertyBags statements)	Add to the triple store statements for creating new resources, instances of a specific class
void	addNamespace(String prefix, String namespace)	Add a namespace to the triple store
void	clear(String contextName)	Delete all the statements in a given context.
Set<String>	contextNames()	Get all the context names currently defined in the Triplestore.
String	getImplementationName()	Return the implementation name defined in the triple store
List<PrefixNamespace>	getNamespaces()	Return the namespaces defined in the triple store
void	print(PrintStream out)	Print a summary of the contents of the Triplestore.
PropertyBags	query(String query)	Perform a SPARQL query on the Triplestore.
void	read(InputStream is, String baseName, String contextName)	Read statements from an input stream and store them in the Triplestore under the given context name.
void	update(String query)	Perform a SPARQL update on the Triplestore.
void	write(DataSource ds)	Write the contents of the Triplestore in the given data source.
void	write(DataSource ds, String contextName)	Write the contents of a context in the given data source.

Methods inherited from class com.powsybl.triplestore.api.AbstractPowsyblTripleStore

adjustedQuery, defineQueryPrefix, namespaceForContexts, outputStream, print, rdfDescriptionClass

Methods inherited from class java.lang.Object

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

Constructor Detail

TripleStoreJena

public TripleStoreJena()

Method Detail

getImplementationName

public String getImplementationName()

Description copied from interface: TripleStore

Return the implementation name defined in the triple store

Returns:

the string implementation name of the triplestore object

read

public void read(InputStream is,
                 String baseName,
                 String contextName)

Description copied from interface: TripleStore

Read statements from an input stream and store them in the Triplestore under the given context name.

Parameters:

is - input stream containing statements that will be added to the Triplestore

baseName - the base URI used to convert relative URI's to absolute URI's

contextName - name of the context where statements will be added

write

public void write(DataSource ds)

Description copied from interface: TripleStore

Write the contents of the Triplestore in the given data source. Statements in each context will be written to separate fileNames in the output data source

Parameters:

ds - the output data source

write

public void write(DataSource ds,
                  String contextName)

Description copied from interface: TripleStore

Write the contents of a context in the given data source.

Parameters:

ds - the output data source

contextName - the context to write

print

public void print(PrintStream out)

Description copied from interface: TripleStore

Print a summary of the contents of the Triplestore. Typically a list of contexts and its size (number of statements).

Parameters:

out - output stream where the summary will be written

contextNames

public Set<String> contextNames()

Description copied from interface: TripleStore

Get all the context names currently defined in the Triplestore.

Returns:

a set of all context names

clear

public void clear(String contextName)

Description copied from interface: TripleStore

Delete all the statements in a given context.

Parameters:

contextName - the context to be cleared

query

public PropertyBags query(String query)

Description copied from interface: TripleStore

Perform a SPARQL query on the Triplestore.

Parameters:

query - the text of the query, written in SPARQL query language

Returns:

the solution sequence of the query (the ways in which the query matches the data)

add

public void add(TripleStore source)

Description copied from interface: TripleStore

Add all statements of the source Triplestore to this Triplestore.

Parameters:

source - the Triplestore containing statements to be added to this Triplestore

update

public void update(String query)

Description copied from interface: TripleStore

Perform a SPARQL update on the Triplestore.

add

public void add(String contextName,
                String objNs,
                String objType,
                PropertyBags statements)

Description copied from interface: TripleStore

Add to the triple store statements for creating new resources, instances of a specific class

Parameters:

contextName - context where the statements are added

objNs - the namespace of the class of the new resources

objType - the class of the new resources

statements - properties of the resources

add

public String add(String contextName,
                  String objNs,
                  String objType,
                  PropertyBag properties)

Description copied from interface: TripleStore

Add to the triple store statements for creating a new resource, instance of a specific class

Parameters:

contextName - the context where the statements are added

objNs - the namespace of the class of the new resource

objType - the class of the new resource

properties - properties of the resource

Returns:

the id of the new resource

addNamespace

public void addNamespace(String prefix,
                         String namespace)

Description copied from interface: TripleStore

Add a namespace to the triple store

Parameters:

prefix - the prefix of the namespace

namespace - the namespace

getNamespaces

public List<PrefixNamespace> getNamespaces()

Description copied from interface: TripleStore

Return the namespaces defined in the triple store

Returns:

the list of namespaces defined in the triple store