org.ontoware.rdf2go.model.impl

Class DelegatingModelSet

java.lang.Object

org.ontoware.rdf2go.model.impl.AbstractModelSetImpl

org.ontoware.rdf2go.model.impl.DelegatingModelSet

All Implemented Interfaces:

Serializable, Iterable<Statement>, ClosableIterable<Statement>, Commitable, FindableModelSet, Lockable, ModelSet, ModelSetAddRemove, ModelSetIO, ModelValueFactory, NamespaceSupport, ReificationSupport, Sparqlable

Direct Known Subclasses:

NotifyingModelSetLayer

public class DelegatingModelSet
extends AbstractModelSetImpl
implements ModelSet

Author:

grimnes, voelkel

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected ModelSet	baseModelSet

Constructor Summary

Constructors

Constructor and Description
DelegatingModelSet(ModelSet baseModelSet)

Method Summary

Modifier and Type	Method and Description
boolean	addModel(Model model) Adds a model to this ModelSet.
void	addModel(Model model, URI contextURI) subclasses should overwrite this for performance reasons
void	addModelSet(ModelSet modelSet) Adds a complete ModelSet to this ModelSet.
BlankNode	addReificationOf(Statement statement) A convenience function for addReficationOf( createBlankNode(), statement );
Resource	addReificationOf(Statement statement, Resource resource) Reifies the statement, whether the statement was present in the model or not.
void	addStatement(Statement statement) This method creates a Model named statement.getContextURI if needed.
void	close() Close connection of the underlying implementation
void	commit() Deprecated.
boolean	containsModel(URI contextURI)
boolean	containsStatements(UriOrVariable contextURI, ResourceOrVariable subject, UriOrVariable predicate, NodeOrVariable object)
BlankNode	createBlankNode(String internalID) Create a new blank node with the given internal ID.
QuadPattern	createQuadPattern(UriOrVariable context, ResourceOrVariable subject, UriOrVariable predicate, NodeOrVariable object)
URI	createURI(String uriString) Creates an RDF2Go URI.
void	deleteReification(Resource reificationResource) Delete reifications made by this resource.
ClosableIterator<Statement>	findStatements(UriOrVariable contextURI, ResourceOrVariable subject, UriOrVariable predicate, NodeOrVariable object) Search across all existing models
Collection<Resource>	getAllReificationsOf(Statement statement)
Model	getDefaultModel() The default model is used when the ModelSet is loaded from a serialisation that has no context.
ModelSet	getDelegatedModelSet()
Model	getModel(URI contextURI) Get the Model with the passed URI.
ClosableIterator<Model>	getModels()
ClosableIterator<URI>	getModelURIs()
String	getNamespace(String prefix)
Map<String,String>	getNamespaces() Get all namespaces as a map of prefix to namespace.
Object	getUnderlyingModelImplementation() Deprecated.
Object	getUnderlyingModelSetImplementation()
boolean	hasReifications(Statement stmt)
boolean	isEmpty() sublcasses should override this method for performance
boolean	isOpen()
ModelSet	open() Open connection to the underlying implementation
ClosableIterable<Statement>	queryConstruct(String query, String querylanguage)
QueryResultTable	querySelect(String query, String querylanguage) returns results for queries in other query languages as a QueryResultTable as supported by underlying implementation.
void	readFrom(InputStream in) Read from InputStream assuming to read an TRiX stream.
void	readFrom(InputStream in, Syntax syntax) Reads assuming the given syntax.
void	readFrom(InputStream reader, Syntax syntax, String baseURI) Reads assuming the given syntax.
void	readFrom(Reader in) Read from Reader assuming to read a TRiX stream in UTF8 encoding.
void	readFrom(Reader in, Syntax syntax) Reads assuming the given syntax.
void	readFrom(Reader in, Syntax syntax, String baseURI) Reads assuming the given syntax.
boolean	removeModel(URI contextURI) Removes the Model (NamedGraph) denoted by contextURI from this modelset.
void	removeNamespace(String prefix) Throws no exception if the prefix was not present.
void	removeStatement(Statement statement) Removes the statement (s,p,o) from a model named statement.getContext().
void	setAutocommit(boolean autocommit) Deprecated.
void	setNamespace(String prefix, String namespaceURI)
long	size() The number of explicit statements.
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	update(DiffReader diff) Apply the changes given by this diff in one atomic operation Implementations must check that all statements to be removed are still in the Model.
void	writeTo(OutputStream out) Writing a TRiX stream in UTF8 encoding For more info on TRiX read: http://www.hpl.hp.com/techreports/2003/HPL-2003-268.html
void	writeTo(OutputStream out, Syntax syntax) Write the model to the passed writer, using the passed syntax.
void	writeTo(Writer out) Write to writer in UTF8 and TRiX.
void	writeTo(Writer out, Syntax syntax) Write the model to the passed writer, using the passed syntax.

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

addAll, addStatement, contains, countStatements, createBlankNode, createDatatypeLiteral, createLanguageTagLiteral, createPlainLiteral, createStatement, createStatement, dump, findStatements, isLocked, isValidURI, iterator, lock, newRandomUniqueURI, removeAll, removeAll, removeStatement, removeStatements, removeStatements, serialize, unlock

Methods inherited from class java.lang.Object

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

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

createStatement, dump, removeAll

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

serialize

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

contains, countStatements, findStatements

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

addAll, addStatement, removeAll, removeStatement, removeStatements, removeStatements

Methods inherited from interface org.ontoware.aifbcommons.collection.ClosableIterable

iterator

Methods inherited from interface java.lang.Iterable

forEach, spliterator

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

isLocked, lock, unlock

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

createBlankNode, createDatatypeLiteral, createLanguageTagLiteral, createPlainLiteral, createStatement, isValidURI, newRandomUniqueURI

Field Detail

baseModelSet

protected ModelSet baseModelSet

Constructor Detail

DelegatingModelSet

public DelegatingModelSet(ModelSet baseModelSet)

Method Detail

addModel

public boolean addModel(Model model)

Description copied from interface: ModelSet

Adds a model to this ModelSet. Creating the named-graph if needed, adding the triples to it if not. Same semantics as: ModelSet.getModel(model.getContextUri).add(model). Note: This method might be much quicker than addAll(model.iterator()) depending on the implementation.

Specified by:

addModel in interface ModelSet

Overrides:

addModel in class AbstractModelSetImpl

Returns:

true if successful

addStatement

public void addStatement(Statement statement)
                  throws ModelRuntimeException

Description copied from interface: ModelSetAddRemove

This method creates a Model named statement.getContextURI if needed. Then the statement (s,p,o) is inserted into that model.

Specified by:

addStatement in interface ModelSetAddRemove

Throws:

ModelRuntimeException - if any internal (I/O related) exception occurs

close

public void close()

Description copied from interface: ModelSet

Close connection of the underlying implementation

Specified by:

close in interface ModelSet

containsStatements

public boolean containsStatements(UriOrVariable contextURI,
                                  ResourceOrVariable subject,
                                  UriOrVariable predicate,
                                  NodeOrVariable object)
                           throws ModelRuntimeException

Specified by:

containsStatements in interface FindableModelSet

Overrides:

containsStatements in class AbstractModelSetImpl

Returns:

true, if a Model named 'contextURI' contains the statement (s,p,o)

Throws:

ModelRuntimeException

createQuadPattern

public QuadPattern createQuadPattern(UriOrVariable context,
                                     ResourceOrVariable subject,
                                     UriOrVariable predicate,
                                     NodeOrVariable object)

Specified by:

createQuadPattern in interface FindableModelSet

Returns:

a QuadPattern

createURI

public URI createURI(String uriString)
              throws ModelRuntimeException

Description copied from interface: ModelSet

Creates an RDF2Go URI. This allows a user to create a model via 'getModel( URI )'.

Specified by:

createURI in interface ModelSet

Specified by:

createURI in interface ModelValueFactory

Overrides:

createURI in class AbstractModelSetImpl

Returns:

an RDF2Go URI

Throws:

ModelRuntimeException - if URI has not a valid URI format - according to the adapter

findStatements

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

Description copied from interface: FindableModelSet

Search across all existing models

Specified by:

findStatements in interface FindableModelSet

Overrides:

findStatements in class AbstractModelSetImpl

Returns:

all matching statements in all models

Throws:

ModelRuntimeException

getDefaultModel

public Model getDefaultModel()

Description copied from interface: ModelSet

The default model is used when the ModelSet is loaded from a serialisation that has no context. The default model has a context of 'null'

Specified by:

getDefaultModel in interface ModelSet

Returns:

the default model. It has to be isOpen() == true.

getDelegatedModelSet

public ModelSet getDelegatedModelSet()

Returns:

the modelset to which this instances delegates everything.

getModel

public Model getModel(URI contextURI)

Description copied from interface: ModelSet

Get the Model with the passed URI. If the model does not exist yet, an empty model will be created and returned. This method will throw an Exception when ModelSet.isOpen() is false. Note that the returned model is tied to this ModelSet. Any changes in the model will be reflected here, closing this ModelSet will close the returned Model. To avoid side-effects, closing the returned Model will NOT close this ModelSet. Closing the returned model will not affect objects returned by previous calls to this method, hence this method should always return a new copy of the Model object to allow callers to close() a returned model.

Specified by:

getModel in interface ModelSet

Parameters:

contextURI - the URI of the context. This is the same as the name of the named graph.

Returns:

the model identified by this context. May have a size of 0, if no data was added to it yet. Never returns null. The returned model has isOpen() == true. Closing the returned model will not close this dataset and is optional.

getModels

public ClosableIterator<Model> getModels()

Specified by:

getModels in interface ModelSet

Returns:

an Interator over all models within this ModelSet. Some models might be empty. Since 4.4.10: Each model has to be isOpen() == true. For some implementations: While you read the iterator you may not WRITE to the models.

getModelURIs

public ClosableIterator<URI> getModelURIs()

Specified by:

getModelURIs in interface ModelSet

Returns:

an iterator over all URIs used as model URIs. For some implementations: While you read the iterator you may not WRITE to the models.

getUnderlyingModelImplementation

@Deprecated
public Object getUnderlyingModelImplementation()

Deprecated.

getUnderlyingModelSetImplementation

public Object getUnderlyingModelSetImplementation()

Specified by:

getUnderlyingModelSetImplementation in interface ModelSet

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.

isOpen

public boolean isOpen()

Specified by:

isOpen in interface ModelSet

Returns:

true if ModelSet is open

open

public ModelSet open()

Description copied from interface: ModelSet

Open connection to the underlying implementation

Specified by:

open in interface ModelSet

Returns:

the modelSet itself (now open) ready for further operations

queryConstruct

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

Specified by:

queryConstruct in interface Sparqlable

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

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

ModelRuntimeException - if the execution throws an exception

querySelect

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

Description copied from interface: Sparqlable

returns results for queries in other query languages as a QueryResultTable 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:

querySelect in interface Sparqlable

Returns:

a QueryResultTable

Throws:

QueryLanguageNotSupportedException - if the given query langauge is not supported

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

ModelRuntimeException - if the execution throws an exception

readFrom

public void readFrom(InputStream in)
              throws IOException,
                     ModelRuntimeException

Description copied from interface: ModelSetIO

Read from InputStream assuming to read an TRiX stream. All Models are created with the corresponding names as defined in the TRiX stream as needed. For more info on TRiX read: http://www.hpl.hp.com/techreports/2003/HPL-2003-268.html

Specified by:

readFrom in interface ModelSetIO

Parameters:

in - the input to read

Throws:

IOException - on IOErrors

ModelRuntimeException - on RDF serialisation errors or model errors

readFrom

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

Description copied from interface: ModelSetIO

Reads assuming the given syntax. Encoding defaults to UTF8.

Specified by:

readFrom in interface ModelSetIO

Overrides:

readFrom in class AbstractModelSetImpl

syntax - syntax to use

Throws:

IOException - on IOErrors

ModelRuntimeException - on RDF serialisation errors or model errors

SyntaxNotSupportedException - if adapter can't handle the given syntax

readFrom

public void readFrom(Reader in)
              throws IOException,
                     ModelRuntimeException

Description copied from interface: ModelSetIO

Read from Reader assuming to read a TRiX stream in UTF8 encoding. All Models are created with the corresponding names as defined in the TRiX stream as needed. For more info on TRiX read: http://www.hpl.hp.com/techreports/2003/HPL-2003-268.html

Specified by:

readFrom in interface ModelSetIO

Parameters:

in - the input to read

Throws:

IOException - on IOErrors

ModelRuntimeException - on RDF serialization errors or model errors

readFrom

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

Description copied from interface: ModelSetIO

Reads assuming the given syntax. Encoding defaults to UTF8.

Specified by:

readFrom in interface ModelSetIO

Overrides:

readFrom in class AbstractModelSetImpl

Parameters:

in - the input to read

syntax - syntax to use

Throws:

IOException - on IOErrors

ModelRuntimeException - on RDF serialisation errors or model errors

SyntaxNotSupportedException - if adapter can't handle the given syntax

removeStatement

public void removeStatement(Statement statement)
                     throws ModelRuntimeException

Description copied from interface: ModelSetAddRemove

Removes the statement (s,p,o) from a model named statement.getContext(). If the model named statement.getContext() becomes empty, it remains in the ModelSet.

Specified by:

removeStatement in interface ModelSetAddRemove

Parameters:

statement - a Statement

Throws:

ModelRuntimeException - if any internal (I/O related) exception occurs

size

public long size()
          throws ModelRuntimeException

Description copied from interface: ModelSet

The number of explicit statements. Statements that are inferred e.g. using backward-chaining are per definition not in this number, and also some inferred statements may or may be not part of this size, depending on the implementation of the model. If a new triple is added to the model, the size must increase.

Specified by:

size in interface ModelSet

Returns:

the number of statements in this ModelSet.

Throws:

ModelRuntimeException

sparqlAsk

public boolean sparqlAsk(String query)
                  throws ModelRuntimeException,
                         MalformedQueryException

Description copied from interface: Sparqlable

SPARQL ask queries

Specified by:

sparqlAsk in interface Sparqlable

Overrides:

sparqlAsk in class AbstractModelSetImpl

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

sparqlConstruct

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

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

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

sparqlSelect

public QueryResultTable sparqlSelect(String queryString)
                              throws MalformedQueryException,
                                     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:

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

ModelRuntimeException - if an error happens when executing the query

update

public void update(DiffReader diff)
            throws ModelRuntimeException

Description copied from interface: ModelSetAddRemove

Apply the changes given by this diff in one atomic operation Implementations must check that all statements to be removed are still in the Model. Otherwise an exception is thrown. First all triples to be removed are removed, then triples to be added are added. In this modelset, this means (s,p,o) is removed from the graph named c, for all statements (c,s,p,o). Note: Models becoming empty are not removed.

Specified by:

update in interface ModelSetAddRemove

Overrides:

update in class AbstractModelSetImpl

Throws:

ModelRuntimeException - if the ModelSet is locked

writeTo

public void writeTo(OutputStream out)
             throws IOException,
                    ModelRuntimeException

Description copied from interface: ModelSetIO

Writing a TRiX stream in UTF8 encoding For more info on TRiX read: http://www.hpl.hp.com/techreports/2003/HPL-2003-268.html

Specified by:

writeTo in interface ModelSetIO

Parameters:

out - the output to write to

Throws:

IOException - on IOErrors

ModelRuntimeException - on RDF serialization errors or model errors

writeTo

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

Description copied from interface: ModelSetIO

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

Specified by:

writeTo in interface ModelSetIO

Overrides:

writeTo in class AbstractModelSetImpl

Parameters:

out - the output to write to

syntax - syntax to use

Throws:

IOException - on IOErrors

ModelRuntimeException - on RDF serialization errors or model errors

SyntaxNotSupportedException - if adapter can't handle the given syntax

writeTo

public void writeTo(Writer out)
             throws IOException,
                    ModelRuntimeException

Description copied from interface: ModelSetIO

Write to writer in UTF8 and TRiX. For more info on TRiX read: http://www.hpl.hp.com/techreports/2003/HPL-2003-268.html

Specified by:

writeTo in interface ModelSetIO

Parameters:

out - the output to write to

Throws:

IOException - on IOErrors

ModelRuntimeException - on RDF serialization errors or model errors

writeTo

public void writeTo(Writer out,
                    Syntax syntax)
             throws IOException,
                    ModelRuntimeException,
                    SyntaxNotSupportedException

Description copied from interface: ModelSetIO

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

Specified by:

writeTo in interface ModelSetIO

Overrides:

writeTo in class AbstractModelSetImpl

Parameters:

out - the output to write to

syntax - syntax to use

Throws:

IOException - on IOErrors

ModelRuntimeException - on RDF serialization errors or model errors

SyntaxNotSupportedException - if adapter can't handle the given syntax

isEmpty

public boolean isEmpty()

Description copied from class: AbstractModelSetImpl

sublcasses should override this method for performance

Specified by:

isEmpty in interface ModelSet

Overrides:

isEmpty in class AbstractModelSetImpl

Returns:

true if all models in this ModelSet contain zero statements. This method might be faster than calling size() == 0 on each model. Note: This method can return isEmpty == true, even if the ModelSet contains a number of models.

containsModel

public boolean containsModel(URI contextURI)

Specified by:

containsModel in interface ModelSet

Returns:

true if a Model (NamedGraph) named 'contextURI' is known. The model might be empty. Some implementations don't manage models explicitly, here empty models can never exist.

removeModel

public boolean removeModel(URI contextURI)

Description copied from interface: ModelSet

Removes the Model (NamedGraph) denoted by contextURI from this modelset. If the model contains statements, they are deleted.

Specified by:

removeModel in interface ModelSet

Returns:

true if successful

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

Overrides:

createBlankNode in class AbstractModelSetImpl

Returns:

a BlankNode with the given internal ID.

commit

@Deprecated
public void commit()

Deprecated.

Description copied from interface: Commitable

Writes all changes to underlying persistence layer - if such a layer is used by the implementation. Otherwise nothing happens.

Specified by:

commit in interface Commitable

setAutocommit

@Deprecated
public void setAutocommit(boolean autocommit)

Deprecated.

Description copied from interface: Commitable

The default value is true.

Specified by:

setAutocommit in interface Commitable

Parameters:

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

addReificationOf

public Resource addReificationOf(Statement statement,
                                 Resource resource)

Description copied from interface: ReificationSupport

Reifies the statement, whether the statement was present in the model or not. The statement itself is never added to the model, but it might have been in the model before this method call. This method creates only triples like (resource )rdf:subject s; rdf:predicate p; rdf:object o. Where s,p, and o are taken from the given statement. Adds the following statements, as defined in @see http://www.w3.org/TR/rdf-mt/#Reif

 (resource) rdf:type       rdf:Statement .
 (resource) rdf:subject   (statement.getSubject()) .
 (resource) rdf:predicate (statement.getPredicate()) .
 (resource) rdf:object    (statement.getObject()) .
 

Specified by:

addReificationOf in interface ReificationSupport

Overrides:

addReificationOf in class AbstractModelSetImpl

Parameters:

statement - which will be reified

resource - used to represent the reified statement

Returns:

the given resource

addReificationOf

public BlankNode addReificationOf(Statement statement)

Description copied from interface: ReificationSupport

A convenience function for addReficationOf( createBlankNode(), statement );

Specified by:

addReificationOf in interface ReificationSupport

Overrides:

addReificationOf in class AbstractModelSetImpl

Returns:

a new BlankNode which holds the reification of the given statement.

deleteReification

public void deleteReification(Resource reificationResource)

Description copied from interface: ReificationSupport

Delete reifications made by this resource. More technically, this method will remove the following patterns:

 (reificationResource) rdf:type      rdf:Statement . 
 (reificationResource) rdf:subject   * .
 (reificationResource) rdf:predicate * .
 (reificationResource) rdf:object    * .
 

Note that one resource might have been used in several reifications. Although semantic nonsense, this can happen. This method cleans up also these cases. Note that this method deletes the reification from all contexts.

Specified by:

deleteReification in interface ReificationSupport

Overrides:

deleteReification in class AbstractModelSetImpl

getAllReificationsOf

public Collection<Resource> getAllReificationsOf(Statement statement)

Specified by:

getAllReificationsOf in interface ReificationSupport

Overrides:

getAllReificationsOf in class AbstractModelSetImpl

Returns:

a collection which contains all resources that are a reification of the given statement.

hasReifications

public boolean hasReifications(Statement stmt)

Specified by:

hasReifications in interface ReificationSupport

Overrides:

hasReifications in class AbstractModelSetImpl

Returns:

true if the model contains results to the query

 ?reificationResource rdf:type      rdf:Statement . 
 ?reificationResource rdf:subject   ?s .
 ?reificationResource rdf:predicate ?p .
 ?reificationResource rdf:object    ?o .
 

readFrom

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

Description copied from interface: ModelSetIO

Reads assuming the given syntax. Encoding defaults to UTF8.

Specified by:

readFrom in interface ModelSetIO

syntax - syntax to use

baseURI - base URI to use

Throws:

IOException - on IOErrors

ModelRuntimeException - on RDF serialisation errors or model errors

SyntaxNotSupportedException - if adapter can't handle the given syntax

readFrom

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

Description copied from interface: ModelSetIO

Reads assuming the given syntax. Encoding defaults to UTF8.

Specified by:

readFrom in interface ModelSetIO

Parameters:

in - the input to read

syntax - syntax to use

baseURI - baseURI to use

Throws:

IOException - on IOErrors

ModelRuntimeException - on RDF serialisation errors or model errors

SyntaxNotSupportedException - if adapter can't handle the given syntax

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.

addModel

public void addModel(Model model,
                     URI contextURI)
              throws ModelRuntimeException

Description copied from class: AbstractModelSetImpl

subclasses should overwrite this for performance reasons

Specified by:

addModel in interface ModelSet

Overrides:

addModel in class AbstractModelSetImpl

Throws:

ModelRuntimeException - if any internal (I/O related) exception occurs

addModelSet

public void addModelSet(ModelSet modelSet)
                 throws ModelRuntimeException

Description copied from interface: ModelSet

Adds a complete ModelSet to this ModelSet. Context URIs in the Statements of the modelSet are respected.

Specified by:

addModelSet in interface ModelSet

Overrides:

addModelSet in class AbstractModelSetImpl

Throws:

ModelRuntimeException - if any internal (I/O related) exception occurs