| /* |
| * 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.query; |
| |
| import java.util.Iterator ; |
| import java.util.List ; |
| |
| import org.apache.jena.rdf.model.Model ; |
| import org.apache.jena.sparql.engine.binding.Binding ; |
| |
| /** Results from a query in a table-like manner for SELECT queries. |
| * Each row corresponds to a set of bindings which fulfil the conditions |
| * of the query. Access to the results is by variable name. |
| * |
| * @see Query |
| * @see QueryExecution |
| * @see QuerySolution |
| */ |
| |
| public interface ResultSet extends Iterator<QuerySolution> |
| { |
| // Could have a ResultSetBase that does all the Node=>Resource (= ResultBinding) |
| /** |
| * Is there another result? |
| */ |
| @Override |
| public boolean hasNext() ; |
| |
| /** Moves onto the next result. */ |
| |
| @Override |
| public QuerySolution next() ; |
| |
| /** Moves onto the next result (legacy - use .next()). */ |
| public QuerySolution nextSolution() ; |
| |
| /** Move to the next binding (low level) */ |
| public Binding nextBinding() ; |
| |
| /** Return the "row" number for the current iterator item */ |
| public int getRowNumber() ; |
| |
| /** Get the variable names for the projection. Not all query |
| * solutions from a result have every variable defined. |
| */ |
| public List<String> getResultVars() ; |
| |
| /** Get the model that resources are created against - may be null */ |
| public Model getResourceModel() ; |
| } |