/*
* 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 com.hp.hpl.jena.tdb.transaction;
import java.util.Iterator ;
import org.junit.Test ;
import org.openjena.atlas.iterator.Iter ;
import org.openjena.atlas.junit.BaseTest ;
import com.hp.hpl.jena.tdb.base.record.Record ;
import com.hp.hpl.jena.tdb.base.record.RecordLib ;
import com.hp.hpl.jena.tdb.index.IndexTestLib ;
import com.hp.hpl.jena.tdb.index.RangeIndex ;
import com.hp.hpl.jena.tdb.index.bplustree.BPlusTree ;
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) ;
}
}