| /* |
| * 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.sparql.core; |
| |
| import java.util.ArrayList ; |
| import java.util.List ; |
| import java.util.ListIterator ; |
| |
| import org.apache.jena.sparql.util.Iso ; |
| import org.apache.jena.sparql.util.NodeIsomorphismMap ; |
| |
| /** A class whose purpose is to give a name to a collection of triple paths. */ |
| |
| public class PathBlock implements Iterable<TriplePath> |
| { |
| private List<TriplePath> triplePaths = new ArrayList<>() ; |
| |
| public PathBlock() {} |
| public PathBlock(PathBlock other) {triplePaths.addAll(other.triplePaths) ; } |
| |
| public void add(TriplePath tp) { triplePaths.add(tp) ; } |
| public void addAll(PathBlock other) { triplePaths.addAll(other.triplePaths) ; } |
| public void add(int i, TriplePath tp) { triplePaths.add(i, tp) ; } |
| |
| public TriplePath get(int i) { return triplePaths.get(i) ; } |
| @Override |
| public ListIterator<TriplePath> iterator() { return triplePaths.listIterator() ; } |
| public int size() { return triplePaths.size() ; } |
| public boolean isEmpty() { return triplePaths.isEmpty() ; } |
| |
| public List<TriplePath> getList() { return triplePaths ; } |
| |
| @Override |
| public int hashCode() { return triplePaths.hashCode() ; } |
| |
| @Override |
| public boolean equals(Object other) |
| { |
| if ( this == other ) return true ; |
| if ( ! ( other instanceof PathBlock) ) |
| return false ; |
| PathBlock bp = (PathBlock)other ; |
| return triplePaths.equals(bp.triplePaths) ; |
| } |
| |
| public boolean equiv(PathBlock other, NodeIsomorphismMap isoMap) |
| { |
| if ( this.triplePaths.size() != other.triplePaths.size() ) |
| return false ; |
| |
| for ( int i = 0 ; i < this.triplePaths.size() ; i++ ) |
| { |
| TriplePath tp1 = get(i) ; |
| TriplePath tp2 = other.get(i) ; |
| |
| if ( ! Iso.triplePathIso(tp1, tp2, isoMap) ) |
| return false ; |
| } |
| return true ; |
| } |
| |
| @Override |
| public String toString() |
| { |
| return triplePaths.toString() ; |
| } |
| } |