/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.jena.rdf.model;
import java.util.*;
/**
The interface for classes that listen for model-changed events. In all cases,
the argument is [a copy of] the item that has been presented to the model,
or its underlying graph, for addition or removal. For an add, the item [or parts
of that item] may have already been present in the model; for remove, the
item [or parts of it] need not have been absent from the item.
<p>
NOTE that the listener is supplied with more-or-less faithful copies of the
original items that were added to, or removed from, the model. In particular,
graph-level updates to the model appear as statements, not triples.
*/
public interface ModelChangedListener
{
/**
Method to call when a single statement has been added to the attached model.
@param s the statement that has been presented for addition.
*/
void addedStatement( Statement s );
/**
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[]).
@param statements the array of added statements
*/
void addedStatements( Statement [] statements );
/**
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).
@param statements the list of statements that has been removed.
*/
void addedStatements( List<Statement> statements );
/**
Method to call when a statement iterator has supplied elements to be added
to the attached model. <code>statements</code> is a copy of the
original iterator.
@param statements
*/
void addedStatements( StmtIterator statements );
/**
Method to call when a model has been used to define the statements to
be added to our attached model.
@param m a model equivalent to [and sharing with] the added model
*/
void addedStatements( Model m );
/**
Method to call when a single statement has been removed from the attached model.
@param s the statement that has been presented for removal.
*/
void removedStatement( Statement s );
/**
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[]).
@param statements the array of removed statements
*/
void removedStatements( Statement [] statements );
/**
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).
@param statements the list of statements that have been removed.
*/
void removedStatements( List<Statement> statements );
/**
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.
@param statements a statement-type copy of the updating iterator
*/
void removedStatements( StmtIterator statements );
/**
Method to call when a model has been used to remove statements from
our attached model.
@param m a model equivalent to [and sharing with] the one removed
*/
void removedStatements( Model m );
void notifyEvent( Model m, Object event );
}