org.ontoware.rdf2go.model.impl

Class DiffImpl

java.lang.Object

org.ontoware.rdf2go.model.impl.AbstractModelWriter

org.ontoware.rdf2go.model.impl.AbstractModelAddRemove

org.ontoware.rdf2go.model.impl.DiffImpl

All Implemented Interfaces:

Serializable, Iterable<Statement>, ClosableIterable<Statement>, Diff, DiffReader, Lockable, ModelAddRemove, ModelWriter

public class DiffImpl
extends AbstractModelAddRemove
implements Diff

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
DiffImpl()
DiffImpl(Iterator<? extends Statement> added, Iterator<? extends Statement> removed)

Method Summary

Modifier and Type	Method and Description
void	addAll(Iterator<? extends Statement> other) 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
void	addStatement(Statement statement) adds a statement to this model
Diff	create(Iterator<? extends Statement> added, Iterator<? extends Statement> removed) Should also be offered by a constructor
void	dump()
boolean	equals(Object other)
static boolean	equals(Set<Statement> a, Set<Statement> b)
Iterable<Statement>	getAdded()
Diff	getDiff(Iterator<? extends Statement> statements)
Iterable<Statement>	getRemoved()
int	hashCode()
boolean	isLocked()
ClosableIterator<Statement>	iterator() Returns an iterator over a set of elements of type T.
void	lock() Tries to obtain a lock.
void	removeAll() Removes all statements from this model.
void	removeAll(Iterator<? extends Statement> other) Removes all statements contained in 'other' from this model = 'difference'
void	removeStatement(Resource subject, URI predicate, Node object) remove a (subject, property ,object)-statement from the model
void	removeStatement(Statement statement) remove a rdf2go-statement from the model
void	unlock() Removes a lock.
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.

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

removeStatement, removeStatement, removeStatement, removeStatement, removeStatement, removeStatement

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

addStatement, addStatement, addStatement, addStatement, addStatement, addStatement

Methods inherited from class java.lang.Object

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

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

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

Constructor Detail

DiffImpl

public DiffImpl()

DiffImpl

public DiffImpl(Iterator<? extends Statement> added,
                Iterator<? extends Statement> removed)

Method Detail

create

public Diff create(Iterator<? extends Statement> added,
                   Iterator<? extends Statement> removed)

Description copied from interface: Diff

Should also be offered by a constructor

Specified by:

create in interface Diff

getAdded

public Iterable<Statement> getAdded()

Specified by:

getAdded in interface DiffReader

getRemoved

public Iterable<Statement> getRemoved()

Specified by:

getRemoved in interface DiffReader

removeStatement

public void removeStatement(Statement statement)
                     throws ModelRuntimeException

Description copied from interface: ModelAddRemove

remove a rdf2go-statement from the model

Specified by:

removeStatement in interface ModelAddRemove

Overrides:

removeStatement in class AbstractModelAddRemove

Throws:

ModelRuntimeException

removeAll

public void removeAll(Iterator<? extends Statement> other)
               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 AbstractModelAddRemove

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 AbstractModelAddRemove

Throws:

ModelRuntimeException

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.

addStatement

public void addStatement(Statement statement)
                  throws ModelRuntimeException

Description copied from interface: ModelWriter

adds a statement to this model

Specified by:

addStatement in interface ModelWriter

Overrides:

addStatement in class AbstractModelWriter

Parameters:

statement - the statement to add

Throws:

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

addAll

public void addAll(Iterator<? extends Statement> other)
            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 AbstractModelWriter

Parameters:

other - another RDF2GO model

Throws:

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

getDiff

public Diff getDiff(Iterator<? extends Statement> statements)
             throws ModelRuntimeException

Specified by:

getDiff in interface ModelAddRemove

Returns:

a Diff between this model and the statements given in the iterator

Throws:

ModelRuntimeException

update

public void update(DiffReader diff)
            throws ModelRuntimeException

Description copied from interface: ModelAddRemove

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.

Specified by:

update in interface ModelAddRemove

Overrides:

update in class AbstractModelAddRemove

Throws:

ModelRuntimeException

lock

public void lock()
          throws LockException

Description copied from interface: Lockable

Tries to obtain a lock.

Specified by:

lock in interface Lockable

Throws:

LockException - if already locked

isLocked

public boolean isLocked()

Specified by:

isLocked in interface Lockable

Returns:

true if a lock is active

unlock

public void unlock()

Description copied from interface: Lockable

Removes a lock. If no lock was set, nothing happens.

Specified by:

unlock in interface Lockable

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

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

dump

public void dump()

Specified by:

dump in interface Diff

equals

public static final boolean equals(Set<Statement> a,
                                   Set<Statement> b)

equals

public boolean equals(Object other)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object