com.hp.hpl.jena.rdf.listeners
Class ChangedListener

java.lang.Object
  com.hp.hpl.jena.rdf.listeners.ChangedListener

All Implemented Interfaces:

ModelChangedListener

public class ChangedListener
extends Object
implements ModelChangedListener

Class that merely notes that a change has occurred. The only method its user should be interested in is hasChanged().

Author:

kers

Constructor Summary

ChangedListener()

Method Summary

void	addedStatement(Statement s) Method to call when a single statement has been added to the attached model.
void	addedStatements(List<Statement> statements) Method to call when a list of statements has been added to the attached model.
void	addedStatements(Model m) Method to call when a model has been used to define the statements to be added to our attached model.
void	addedStatements(Statement[] statements) Method to call when an array of statements has been added to the attached model.
void	addedStatements(StmtIterator statements) Method to call when a statement iterator has supplied elements to be added to the attached model.
boolean	hasChanged() Answer true iff a change has occurred since the last hasChanged and set changed false.
void	notifyEvent(Model m, Object event)
void	removedStatement(Statement s) Method to call when a single statement has been removed from the attached model.
void	removedStatements(List<Statement> statements) Method to call when a list of statements has been deleted from the attached model.
void	removedStatements(Model m) Method to call when a model has been used to remove statements from our attached model.
void	removedStatements(Statement[] statements) Method to call when an array of statements has been removed from the attached model.
void	removedStatements(StmtIterator statements) Method to call when a statement iterator has been used to remove statements from the attached model.

Methods inherited from class java.lang.Object

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

Constructor Detail

ChangedListener

public ChangedListener()

Method Detail

hasChanged

public boolean hasChanged()

Answer true iff a change has occurred since the last hasChanged and set changed false.

Returns:

true iff a change has occurred since the last call to hasChanged

addedStatement

public void addedStatement(Statement s)

Description copied from interface: ModelChangedListener

Method to call when a single statement has been added to the attached model.

Specified by:

addedStatement in interface ModelChangedListener

Parameters:

s - the statement that has been presented for addition.

addedStatements

public void addedStatements(Statement[] statements)

Description copied from interface: ModelChangedListener

Method to call when an array of statements has been added to the attached model. NOTE. This array need not be == to the array added using Model::add(Statement[]).

Specified by:

addedStatements in interface ModelChangedListener

Parameters:

statements - the array of added statements

addedStatements

public void addedStatements(List<Statement> statements)

Description copied from interface: ModelChangedListener

Method to call when a list of statements has been added to the attached model. NOTE. This list need not be == to the list added using Model::add(List).

Specified by:

addedStatements in interface ModelChangedListener

Parameters:

statements - the list of statements that has been removed.

addedStatements

public void addedStatements(StmtIterator statements)

Description copied from interface: ModelChangedListener

Method to call when a statement iterator has supplied elements to be added to the attached model. statements is a copy of the original iterator.

Specified by:

addedStatements in interface ModelChangedListener

addedStatements

public void addedStatements(Model m)

Description copied from interface: ModelChangedListener

Method to call when a model has been used to define the statements to be added to our attached model.

Specified by:

addedStatements in interface ModelChangedListener

Parameters:

m - a model equivalent to [and sharing with] the added model

removedStatement

public void removedStatement(Statement s)

Description copied from interface: ModelChangedListener

Method to call when a single statement has been removed from the attached model.

Specified by:

removedStatement in interface ModelChangedListener

Parameters:

s - the statement that has been presented for removal.

removedStatements

public void removedStatements(Statement[] statements)

Description copied from interface: ModelChangedListener

Method to call when an array of statements has been removed from the attached model. NOTE. This array need not be == to the array added using Model::remove(Statement[]).

Specified by:

removedStatements in interface ModelChangedListener

Parameters:

statements - the array of removed statements

removedStatements

public void removedStatements(List<Statement> statements)

Description copied from interface: ModelChangedListener

Method to call when a list of statements has been deleted from the attached model. NOTE. This list need not be == to the list added using Model::remov(List).

Specified by:

removedStatements in interface ModelChangedListener

Parameters:

statements - the list of statements that have been removed.

removedStatements

public void removedStatements(StmtIterator statements)

Description copied from interface: ModelChangedListener

Method to call when a statement iterator has been used to remove statements from the attached model. The iterator will be a copy, in the correct order, of the iterator supplied for the removal.

Specified by:

removedStatements in interface ModelChangedListener

Parameters:

statements - a statement-type copy of the updating iterator

removedStatements

public void removedStatements(Model m)

Description copied from interface: ModelChangedListener

Method to call when a model has been used to remove statements from our attached model.

Specified by:

removedStatements in interface ModelChangedListener

Parameters:

m - a model equivalent to [and sharing with] the one removed

notifyEvent

public void notifyEvent(Model m,
                        Object event)

Specified by:

notifyEvent in interface ModelChangedListener