org.openrdf.rdf2go

Class RepositoryModel

java.lang.Object

org.ontoware.rdf2go.model.impl.AbstractModelWriter

org.ontoware.rdf2go.model.impl.AbstractModelAddRemove

org.ontoware.rdf2go.model.impl.AbstractModelRemovePatterns

org.ontoware.rdf2go.model.impl.AbstractModel

org.ontoware.rdf2go.model.impl.AbstractLockingModel

org.openrdf.rdf2go.RepositoryModel

All Implemented Interfaces:

Serializable, Iterable<Statement>, ClosableIterable<Statement>, Commitable, FindableModel, Lockable, Model, ModelAddRemove, ModelIO, ModelRemovePatterns, ModelValueFactory, ModelWriter, NamespaceSupport, QueryableModel, ReificationSupport, Sparqlable

public class RepositoryModel
extends AbstractLockingModel
implements Model

Implementation of the RDF2Go model interface for an OpenRDF Repository. Note that RepositoryModel and RepositoryModelSet only work well together because they both keep their RepositoryConnections in auto-commit mode. This cannot be changed by the user. Do mass-updates using update(DiffReader), addAll(Iterator) or removeAll(Iterator), then the current connection will be used in non-autocommit mode and commited, including a rollback when it fails.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected org.openrdf.repository.RepositoryConnection	connection
protected URI	context
static String	DEFAULT_CONTEXT
static org.openrdf.model.URI	DEFAULT_OPENRDF_CONTEXT
protected org.openrdf.repository.Repository	repository
protected org.openrdf.model.ValueFactory	valueFactory

Fields inherited from class org.ontoware.rdf2go.model.impl.AbstractModel

model

Constructor Summary

Constructors

Constructor and Description
RepositoryModel(org.openrdf.repository.Repository repository)
RepositoryModel(URI context, org.openrdf.repository.Repository repository)

Method Summary

Modifier and Type	Method and Description
void	addAll(Iterator<? extends Statement> iterator) Add all statements contained in 'other' to this model = 'union'
void	addStatement(Resource subject, URI predicate, Node object) adds a (subject, property ,object)-statement to this model
protected void	assertModel() This method checks if the model is properly initialized and i.e.
void	close() Closes the Connection to the wrapper Repository.
void	commit() Deprecated.
BlankNode	createBlankNode() Create (but do not add) a new blank node
BlankNode	createBlankNode(String internalID) Create a new blank node with the given internal ID.
void	dump() Dumps the whole content of the model via System.out
void	finalize() Makes sure that the Connection to the wrapped Repository has been closed.
ClosableIterator<Statement>	findStatements(ResourceOrVariable subject, UriOrVariable predicate, NodeOrVariable object) get all statements in the model with this subject, predicate and object.
URI	getContextURI()
String	getNamespace(String prefix)
Map<String,String>	getNamespaces() Get all namespaces as a map of prefix to namespace.
org.openrdf.model.URI	getOpenRDFContextURI() Returns the context as a OpenRDF URI.
static org.openrdf.rio.RDFFormat	getRDFFormat(Syntax syntax) Resolves an RDF2Go Syntax to an OpenRDF RDFFormat.
Object	getUnderlyingModelImplementation()
boolean	isIsomorphicWith(Model other) Two models can be equal even if they do not contain the same statements.
boolean	isLocked()
boolean	isOpen()
boolean	isValidURI(String uriString) CHecks URI for syntax errors.
ClosableIterator<Statement>	iterator() Returns an iterator over a set of elements of type T.
void	lock() Locking a RepositoryModel disables auto-commit mode and starts a new transaction, which is left open until this RepositoryModel is unlocked.
Model	open() Open connection to defined, unterlying implementation.
ClosableIterable<Statement>	queryConstruct(String query, String querylanguage) Throws an exception if the syntax is not SPARQL
QueryResultTable	querySelect(String query, String querylanguage) Throws an exception if the syntax is not SPARQL
void	readFrom(InputStream stream) Read from InputStream assuming to read an RDF/XML stream.
void	readFrom(InputStream stream, org.openrdf.rio.RDFFormat format, String baseURI)
void	readFrom(InputStream stream, Syntax syntax) Throws an exception if the syntax is not RDF/XML.
void	readFrom(InputStream stream, Syntax syntax, String baseURI) Note: Subclasses are encouraged to overwrite this. Throws an exception if the syntax is not RDF/XML.
void	readFrom(Reader reader) Read from Reader assuming in UTF8 encoding.
void	readFrom(Reader reader, org.openrdf.rio.RDFFormat format, String baseURL)
void	readFrom(Reader reader, Syntax syntax) Reads assuming the given syntax.
void	readFrom(Reader reader, Syntax syntax, String baseURI) Note: Subclasses are encouraged to overwrite this. Throws an exception if the syntax is not RDF/XML.
void	removeAll() Removes all statements from this model.
void	removeAll(Iterator<? extends Statement> iterator) Removes all statements contained in 'other' from this model = 'difference'
void	removeNamespace(String prefix) Throws no exception if the prefix was not present.
void	removeStatement(Resource subject, URI predicate, Node object) remove a (subject, property ,object)-statement from the model
void	rollback()
void	setAutocommit(boolean autocommit) Deprecated.
void	setNamespace(String prefix, String namespaceURI)
void	setUnderlyingModelImplementation(Object object)
long	size() This is a really slow implementation, please override.
boolean	sparqlAsk(String query) SPARQL ask queries
ClosableIterable<Statement>	sparqlConstruct(String query)
ClosableIterable<Statement>	sparqlDescribe(String query) Iterator must be auto-close, i.e.
QueryResultTable	sparqlSelect(String queryString) returns results for SPARQL Select queries, as supported by underlying implementation.
void	unlock() Ends the locking status, committing all changed that have been made since this RepositoryModel was locked and switching back to auto-commit mode.
void	update(DiffReader diff) Using lock() and unlock()
void	writeTo(OutputStream stream) Writing an RDF/XML stream in UTF8 encoding
void	writeTo(OutputStream stream, Syntax syntax) Throws an exception if the syntax is not known
void	writeTo(org.openrdf.rio.RDFWriter writer)
void	writeTo(Writer writer) Writing an RDF/XML stream in UTF8 encoding
void	writeTo(Writer writer, Syntax syntax) Write the model to the passed writer, using the passed syntax.

Methods inherited from class org.ontoware.rdf2go.model.impl.AbstractModel

addModel, addReificationOf, addReificationOf, addStatement, addStatement, addStatement, addStatement, addStatement, addStatement, addStatement, contains, contains, contains, countStatements, createDatatypeLiteral, createLanguageTagLiteral, createPlainLiteral, createStatement, createTriplePattern, createURI, deleteReification, findStatements, getAllReificationsOf, getDiff, getProperty, hasReifications, isEmpty, newRandomUniqueURI, removeStatement, removeStatement, removeStatement, removeStatement, removeStatement, removeStatement, removeStatement, removeStatements, removeStatements, serialize, setProperty

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.ontoware.rdf2go.model.Model

addModel, getProperty, isEmpty, setProperty

Methods inherited from interface org.ontoware.rdf2go.model.ModelValueFactory

createDatatypeLiteral, createLanguageTagLiteral, createPlainLiteral, createStatement, createURI, newRandomUniqueURI

Methods inherited from interface org.ontoware.rdf2go.model.ModelRemovePatterns

removeStatements, removeStatements

Methods inherited from interface org.ontoware.rdf2go.model.ModelAddRemove

getDiff, removeStatement, removeStatement, removeStatement, removeStatement, removeStatement, removeStatement, removeStatement

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Methods inherited from interface org.ontoware.rdf2go.model.ModelWriter

addStatement, addStatement, addStatement, addStatement, addStatement, addStatement, addStatement

Methods inherited from interface org.ontoware.rdf2go.model.FindableModel

contains, contains, contains, countStatements, createTriplePattern, findStatements

Methods inherited from interface org.ontoware.rdf2go.model.ModelIO

serialize

Methods inherited from interface org.ontoware.rdf2go.model.ReificationSupport

addReificationOf, addReificationOf, deleteReification, getAllReificationsOf, hasReifications

Field Detail

DEFAULT_CONTEXT

public static final String DEFAULT_CONTEXT

See Also:

Constant Field Values

DEFAULT_OPENRDF_CONTEXT

public static final org.openrdf.model.URI DEFAULT_OPENRDF_CONTEXT

repository

protected org.openrdf.repository.Repository repository

connection

protected org.openrdf.repository.RepositoryConnection connection

valueFactory

protected org.openrdf.model.ValueFactory valueFactory

context

protected URI context

Constructor Detail

RepositoryModel

public RepositoryModel(org.openrdf.repository.Repository repository)
                throws ModelRuntimeException

Throws:

ModelRuntimeException

RepositoryModel

public RepositoryModel(URI context,
                       org.openrdf.repository.Repository repository)
                throws ModelRuntimeException

Throws:

ModelRuntimeException

Method Detail

getOpenRDFContextURI

public org.openrdf.model.URI getOpenRDFContextURI()

Returns the context as a OpenRDF URI.

open

public Model open()

Description copied from class: AbstractModel

Open connection to defined, unterlying implementation.

Specified by:

open in interface Model

Overrides:

open in class AbstractModel

Returns:

the model itself (now open) ready for further operations

isOpen

public boolean isOpen()
               throws ModelRuntimeException

Specified by:

isOpen in interface Model

Overrides:

isOpen in class AbstractModel

Returns:

true, if model has been opened and not yet closed.

Throws:

ModelRuntimeException

close

public void close()

Closes the Connection to the wrapper Repository.

Specified by:

close in interface Model

Overrides:

close in class AbstractModel

createBlankNode

public BlankNode createBlankNode()

Description copied from interface: ModelValueFactory

Create (but do not add) a new blank node

Specified by:

createBlankNode in interface ModelValueFactory

Returns:

a new blank node

createBlankNode

public BlankNode createBlankNode(String internalID)

Description copied from interface: ModelValueFactory

Create a new blank node with the given internal ID. The id should be one returned from BlankNode.getInternalID().

Specified by:

createBlankNode in interface ModelValueFactory

Returns:

a BlankNode with the given internal ID.

isValidURI

public boolean isValidURI(String uriString)

Description copied from interface: ModelValueFactory

CHecks URI for syntax errors.

Specified by:

isValidURI in interface ModelValueFactory

Returns:

true if the URI is valid for the given implementation

addStatement

public void addStatement(Resource subject,
                         URI predicate,
                         Node object)
                  throws ModelRuntimeException

Description copied from interface: ModelWriter

adds a (subject, property ,object)-statement to this model

Specified by:

addStatement in interface ModelWriter

Specified by:

addStatement in class AbstractModelAddRemove

Parameters:

subject - of the statement

predicate - of the statement

object - of the statement

Throws:

ModelRuntimeException - if there is either an error with the underlying model or an IOException

removeAll

public void removeAll(Iterator<? extends Statement> iterator)
               throws ModelRuntimeException

Description copied from interface: ModelAddRemove

Removes all statements contained in 'other' from this model = 'difference'

Specified by:

removeAll in interface ModelAddRemove

Overrides:

removeAll in class AbstractModel

Throws:

ModelRuntimeException

removeAll

public void removeAll()
               throws ModelRuntimeException

Description copied from interface: ModelAddRemove

Removes all statements from this model.

Specified by:

removeAll in interface ModelAddRemove

Overrides:

removeAll in class AbstractModel

Throws:

ModelRuntimeException

addAll

public void addAll(Iterator<? extends Statement> iterator)
            throws ModelRuntimeException

Description copied from interface: ModelWriter

Add all statements contained in 'other' to this model = 'union'

Specified by:

addAll in interface ModelWriter

Overrides:

addAll in class AbstractModel

Parameters:

iterator - another RDF2GO model

Throws:

ModelRuntimeException - if there is either an error with the underlying model or an IOException

removeStatement

public void removeStatement(Resource subject,
                            URI predicate,
                            Node object)
                     throws ModelRuntimeException

Description copied from interface: ModelAddRemove

remove a (subject, property ,object)-statement from the model

Specified by:

removeStatement in interface ModelAddRemove

Specified by:

removeStatement in class AbstractModelAddRemove

Parameters:

subject - URI or Object (= blankNode)

object - URI or String (=plainLiteral) or BlankNode (=blankNode) or TypedLiteral or LanguageTagLiteral

Throws:

ModelRuntimeException

findStatements

public ClosableIterator<Statement> findStatements(ResourceOrVariable subject,
                                                  UriOrVariable predicate,
                                                  NodeOrVariable object)
                                           throws ModelRuntimeException

Description copied from interface: FindableModel

get all statements in the model with this subject, predicate and object. Each of those (s,p,o) can be Variable.ANY Iterator must be auto-close, i.e. when last element is fetched, the implementation must call close().

Specified by:

findStatements in interface FindableModel

Parameters:

subject - URI or Object (= blankNode) or Variable

predicate - URI or Variable

object - URI or String (=plainLiteral) or BlankNode (=blankNode) or TypedLiteral or LanguageTagLiteral or Variable

Returns:

a statement iterator

Throws:

ModelRuntimeException - most often caused by underlying IOException, if any

sparqlAsk

public boolean sparqlAsk(String query)
                  throws ModelRuntimeException

Description copied from interface: Sparqlable

SPARQL ask queries

Specified by:

sparqlAsk in interface Sparqlable

Overrides:

sparqlAsk in class AbstractModel

Parameters:

query - a SPARQL AKS query

Returns:

the query result as true or false

Throws:

ModelRuntimeException - if the execution throws an exception

MalformedQueryException - if the query is not a valid SPARQL ASK query

sparqlDescribe

public ClosableIterable<Statement> sparqlDescribe(String query)
                                           throws ModelRuntimeException

Description copied from interface: Sparqlable

Iterator must be auto-close, i.e. when last element is fetched, the implementation must call close(). This means a regular user can call this method without calling close(), if all elements are consumed.

Specified by:

sparqlDescribe in interface Sparqlable

Returns:

a ClosableIterable over all statements returned by this query

Throws:

ModelRuntimeException - if the execution throws an exception

MalformedQueryException - if the query is not a valid SPARQL DESCRIBE query

sparqlConstruct

public ClosableIterable<Statement> sparqlConstruct(String query)
                                            throws ModelRuntimeException

Specified by:

sparqlConstruct in interface Sparqlable

Returns:

results for SPARQL Construct queries, as supported by underlying implementation. Iterator is auto-close, i.e. when last element is fetched, the implementation must call close().

Throws:

ModelRuntimeException - if the execution throws an exception

MalformedQueryException - if the query is not a valid SPARQL CONSTRUCT query

querySelect

public QueryResultTable querySelect(String query,
                                    String querylanguage)
                             throws QueryLanguageNotSupportedException,
                                    ModelRuntimeException

Description copied from class: AbstractModel

Throws an exception if the syntax is not SPARQL

Specified by:

querySelect in interface Sparqlable

Overrides:

querySelect in class AbstractModel

Returns:

a QueryResultTable

Throws:

QueryLanguageNotSupportedException - if the given query langauge is not supported

ModelRuntimeException - if the execution throws an exception

MalformedQueryException - if the query is not a valid query in the given query language

queryConstruct

public ClosableIterable<Statement> queryConstruct(String query,
                                                  String querylanguage)
                                           throws QueryLanguageNotSupportedException,
                                                  ModelRuntimeException

Description copied from class: AbstractModel

Throws an exception if the syntax is not SPARQL

Specified by:

queryConstruct in interface Sparqlable

Overrides:

queryConstruct in class AbstractModel

Returns:

results for other construct-like queries, as supported by underlying implementation. Iterator is auto-close, i.e. when last element is fetched, the implementation must call close().

Throws:

QueryLanguageNotSupportedException - if the adapter can't understand the given query language

ModelRuntimeException - if the execution throws an exception

MalformedQueryException - if the query is not a valid construct query in the given query language

sparqlSelect

public QueryResultTable sparqlSelect(String queryString)
                              throws ModelRuntimeException

Description copied from interface: Sparqlable

returns results for SPARQL Select queries, as supported by underlying implementation. For some implementations (Sesame) it is urgently necessary to iterate over all statements of the returned iterator in order to close resources properly. Iterator must be auto-close, i.e. when last element is fetched, the implementation must call close().

Specified by:

sparqlSelect in interface Sparqlable

Parameters:

queryString - The SPARQL select query string

Returns:

a QueryResultTable

Throws:

ModelRuntimeException - if an error happens when executing the query

MalformedQueryException - if the query is not a valid SPARQL SELECT query

iterator

public ClosableIterator<Statement> iterator()

Description copied from interface: ClosableIterable

Returns an iterator over a set of elements of type T.

Specified by:

iterator in interface Iterable<Statement>

Specified by:

iterator in interface ClosableIterable<Statement>

Returns:

an Iterator.

getUnderlyingModelImplementation

public Object getUnderlyingModelImplementation()

Specified by:

getUnderlyingModelImplementation in interface Model

Overrides:

getUnderlyingModelImplementation in class AbstractModel

Returns:

the native implementation (e.g. a Jena Model). Using this method breaks strict triple store independence, but exposes the full power and reduces API dependence. This method is part of the main API.

setUnderlyingModelImplementation

public void setUnderlyingModelImplementation(Object object)

size

public long size()
          throws ModelRuntimeException

Description copied from class: AbstractModel

This is a really slow implementation, please override.

Specified by:

size in interface Model

Overrides:

size in class AbstractModel

Returns:

the (imprecise?) number of statements in the model (see comment)

Throws:

ModelRuntimeException

getContextURI

public URI getContextURI()

Specified by:

getContextURI in interface Model

Returns:

the context URI or null

isLocked

public boolean isLocked()

Specified by:

isLocked in interface Lockable

Returns:

true if a lock is active

lock

public void lock()
          throws LockException

Locking a RepositoryModel disables auto-commit mode and starts a new transaction, which is left open until this RepositoryModel is unlocked.

Specified by:

lock in interface Lockable

Throws:

LockException - if already locked

unlock

public void unlock()

Ends the locking status, committing all changed that have been made since this RepositoryModel was locked and switching back to auto-commit mode.

Specified by:

unlock in interface Lockable

rollback

public void rollback()

dump

public void dump()

Description copied from interface: Model

Dumps the whole content of the model via System.out

Specified by:

dump in interface Model

readFrom

public void readFrom(InputStream stream)
              throws IOException,
                     ModelRuntimeException

Description copied from interface: ModelIO

Read from InputStream assuming to read an RDF/XML stream.

Specified by:

readFrom in interface ModelIO

Parameters:

stream - the input to read

Throws:

IOException - on IOErrors

ModelRuntimeException - on RDF serialization errors or model errors

readFrom

public void readFrom(InputStream stream,
                     Syntax syntax)
              throws IOException,
                     ModelRuntimeException

Description copied from class: AbstractModel

Throws an exception if the syntax is not RDF/XML. Subclasses are encouraged to overwrite this.

Specified by:

readFrom in interface ModelIO

Overrides:

readFrom in class AbstractModel

syntax - syntax to use

Throws:

IOException - on IOErrors

ModelRuntimeException - on RDF serialization errors or model errors

readFrom

public void readFrom(InputStream stream,
                     Syntax syntax,
                     String baseURI)
              throws IOException,
                     ModelRuntimeException

Description copied from class: AbstractModel

Note: Subclasses are encouraged to overwrite this. Throws an exception if the syntax is not RDF/XML. Sets baseURI to the empty string.

Specified by:

readFrom in interface ModelIO

Overrides:

readFrom in class AbstractModel

Throws:

IOException

ModelRuntimeException

readFrom

public void readFrom(Reader reader,
                     Syntax syntax,
                     String baseURI)
              throws ModelRuntimeException,
                     IOException

Description copied from class: AbstractModel

Note: Subclasses are encouraged to overwrite this. Throws an exception if the syntax is not RDF/XML. Sets base URI to the empty string (default).

Specified by:

readFrom in interface ModelIO

Overrides:

readFrom in class AbstractModel

Throws:

ModelRuntimeException - from model

IOException - from reader

readFrom

public void readFrom(InputStream stream,
                     org.openrdf.rio.RDFFormat format,
                     String baseURI)
              throws IOException,
                     ModelRuntimeException

Throws:

IOException

ModelRuntimeException

readFrom

public void readFrom(Reader reader)
              throws IOException,
                     ModelRuntimeException

Description copied from interface: ModelIO

Read from Reader assuming in UTF8 encoding. Models are read with a default syntax of RDF/XML

Specified by:

readFrom in interface ModelIO

Parameters:

reader - the input to read

Throws:

IOException - on IOErrors

ModelRuntimeException - on RDF serialization errors or model errors

readFrom

public void readFrom(Reader reader,
                     Syntax syntax)
              throws IOException,
                     ModelRuntimeException

Description copied from interface: ModelIO

Reads assuming the given syntax. Encoding defaults to UTF8. When reading TRiX into a Model, the context URI is ignored.

Specified by:

readFrom in interface ModelIO

Parameters:

reader - the input to read

syntax - syntax to use

Throws:

IOException - on IOErrors

ModelRuntimeException - on RDF serialization errors or model errors

readFrom

public void readFrom(Reader reader,
                     org.openrdf.rio.RDFFormat format,
                     String baseURL)
              throws IOException,
                     ModelRuntimeException

Throws:

IOException

ModelRuntimeException

writeTo

public void writeTo(OutputStream stream)
             throws IOException,
                    ModelRuntimeException

Description copied from interface: ModelIO

Writing an RDF/XML stream in UTF8 encoding

Specified by:

writeTo in interface ModelIO

Parameters:

stream - the output to write to

Throws:

IOException - on IOErrors

ModelRuntimeException - on RDF serialization errors or model errors

writeTo

public void writeTo(OutputStream stream,
                    Syntax syntax)
             throws IOException,
                    ModelRuntimeException

Description copied from class: AbstractModel

Throws an exception if the syntax is not known

Specified by:

writeTo in interface ModelIO

Overrides:

writeTo in class AbstractModel

Parameters:

stream - the output to write to

syntax - syntax to use

Throws:

IOException - on IOErrors

ModelRuntimeException - on RDF serialization errors or model errors

writeTo

public void writeTo(Writer writer)
             throws ModelRuntimeException

Description copied from interface: ModelIO

Writing an RDF/XML stream in UTF8 encoding

Specified by:

writeTo in interface ModelIO

Parameters:

writer - the output to write to

Throws:

ModelRuntimeException - on RDF serialization errors or model errors

writeTo

public void writeTo(Writer writer,
                    Syntax syntax)
             throws ModelRuntimeException

Description copied from interface: ModelIO

Write the model to the passed writer, using the passed syntax.

Specified by:

writeTo in interface ModelIO

Parameters:

writer - the output to write to

syntax - syntax to use

Throws:

ModelRuntimeException - on RDF serialization errors or model errors

getRDFFormat

public static org.openrdf.rio.RDFFormat getRDFFormat(Syntax syntax)
                                              throws SyntaxNotSupportedException

Resolves an RDF2Go Syntax to an OpenRDF RDFFormat.

Parameters:

syntax - The RDF2Go Syntax to resolve.

Returns:

A RDFFormat for the specified syntax.

Throws:

SyntaxNotSupportedException - When the Syntax could not be resolved to a RDFFormat.

writeTo

public void writeTo(org.openrdf.rio.RDFWriter writer)
             throws ModelRuntimeException

Throws:

ModelRuntimeException

commit

@Deprecated
public void commit()

Deprecated.

Description copied from class: AbstractModel

OVERWRITE ME

Specified by:

commit in interface Commitable

Overrides:

commit in class AbstractModel

setAutocommit

@Deprecated
public void setAutocommit(boolean autocommit)

Deprecated.

Description copied from class: AbstractModel

Note: Subclasses SHOULD overwrite this. This implementation simply ignores the request.

Specified by:

setAutocommit in interface Commitable

Overrides:

setAutocommit in class AbstractModel

Parameters:

autocommit - If true, all changes are immediately written to the underlying persistence layer, if any is used.

finalize

public void finalize()
              throws Throwable

Makes sure that the Connection to the wrapped Repository has been closed.

Overrides:

finalize in class Object

Throws:

Throwable

assertModel

protected void assertModel()

Description copied from class: AbstractModel

This method checks if the model is properly initialized and i.e. not closed.

Overrides:

assertModel in class AbstractModel

isIsomorphicWith

public boolean isIsomorphicWith(Model other)

Description copied from interface: Model

Two models can be equal even if they do not contain the same statements. We owe this problem mainly to blank nodes. See http://www.w3.org/TR/2002/WD-rdf-concepts-20020829/#xtocid103648 for the official definition of graph equality (which is based on graph isomorphism). See also http://www.w3.org/TR/rdf-mt/.

Specified by:

isIsomorphicWith in interface Model

Returns:

true if the two models are isomorphic as defined in http://www.w3.org/TR/rdf-mt/

update

public void update(DiffReader diff)
            throws ModelRuntimeException

Description copied from class: AbstractLockingModel

Using lock() and unlock()

Specified by:

update in interface ModelAddRemove

Overrides:

update in class AbstractLockingModel

Throws:

ModelRuntimeException

getNamespace

public String getNamespace(String prefix)

Specified by:

getNamespace in interface NamespaceSupport

Returns:

the namespace that is associated with the specified prefix, if any. Null otherwise.

getNamespaces

public Map<String,String> getNamespaces()

Description copied from interface: NamespaceSupport

Get all namespaces as a map of prefix to namespace.

Specified by:

getNamespaces in interface NamespaceSupport

Returns:

An unmodifiable view on the namespaces. (compare to Collections.unmodifiableMap()). Never returns null.

removeNamespace

public void removeNamespace(String prefix)

Description copied from interface: NamespaceSupport

Throws no exception if the prefix was not present.

Specified by:

removeNamespace in interface NamespaceSupport

setNamespace

public void setNamespace(String prefix,
                         String namespaceURI)
                  throws IllegalArgumentException

Specified by:

setNamespace in interface NamespaceSupport

Throws:

IllegalArgumentException - if the given namespaceURI is not a valid URI in this environment.