| /* |
| * 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.tdb.transaction; |
| |
| import java.util.Iterator ; |
| |
| import org.apache.jena.atlas.iterator.Iter ; |
| import org.apache.jena.atlas.junit.BaseTest ; |
| import org.apache.jena.tdb.base.record.Record ; |
| import org.apache.jena.tdb.base.record.RecordLib ; |
| import org.apache.jena.tdb.index.IndexTestLib ; |
| import org.apache.jena.tdb.index.RangeIndex ; |
| import org.apache.jena.tdb.index.bplustree.BPlusTree ; |
| import org.junit.Test ; |
| |
| public class TestTransIterator extends BaseTest |
| { |
| static BPlusTree build(int order, int[] values) |
| { |
| // See TestBPlusTree |
| BPlusTree bpt = BPlusTree.makeMem(order, order, RecordLib.TestRecordLength, 0) ; |
| bpt = BPlusTree.addTracking(bpt) ; |
| IndexTestLib.add(bpt, values) ; |
| return bpt ; |
| } |
| |
| @Test public void transIter_01() |
| { |
| int vals[] = { } ; |
| RangeIndex rIndex = build(2, vals) ; |
| Iterator<Record> iter1 = rIndex.iterator() ; |
| Iterator<Record> iter2 = rIndex.iterator() ; |
| count(iter1, vals.length) ; |
| count(iter2, vals.length) ; |
| } |
| |
| @Test public void transIter_02() |
| { |
| int vals[] = { 1, 2, 3, 4, 5, 6, 7 } ; |
| RangeIndex rIndex = build(2, vals) ; |
| Iterator<Record> iter1 = rIndex.iterator() ; |
| Iterator<Record> iter2 = rIndex.iterator() ; |
| count(iter1, vals.length) ; |
| count(iter2, vals.length) ; |
| } |
| |
| @Test public void transIter_03() |
| { |
| // Interleaved. |
| int vals[] = { 1, 2, 3, 4, 5, 6, 7 } ; |
| RangeIndex rIndex = build(2, vals) ; |
| Iterator<Record> iter1 = rIndex.iterator() ; |
| Iterator<Record> iter2 = rIndex.iterator() ; |
| for ( ; iter1.hasNext() ; ) |
| { |
| Record r1 = iter1.next(); |
| Record r2 = iter2.next(); |
| } |
| assertFalse(iter2.hasNext()) ; |
| } |
| |
| private static void count(Iterator<Record> iter, long expected) |
| { |
| long x = Iter.count(iter) ; |
| assertEquals(expected, x) ; |
| } |
| |
| } |