Package org.apache.accumulo.core.iterators.system

Examples of org.apache.accumulo.core.iterators.system.MultiIterator

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    List<SortedKeyValueIterator<Key,Value>> sources = new ArrayList<SortedKeyValueIterator<Key,Value>>(3);
    sources.add(new SortedMapIterator(tm1));
    sources.add(new SortedMapIterator(tm2));
    sources.add(new SortedMapIterator(tm3));
   
    MultiIterator mi = new MultiIterator(sources, true);
    ai.init(mi, is.getOptions(), null);
    ai.seek(new Range(), EMPTY_COL_FAMS, false);
   
    assertTrue(ai.hasTop());
    assertEquals(nk(1, 1, 1, 1), ai.getTopKey());
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    SortedKeyValueIterator<Key,Value> source = createIteratorStack(NUM_ROWS, NUM_DOCIDS, columnFamilies, otherColumnFamilies, docs);
    SortedKeyValueIterator<Key,Value> source2 = createIteratorStack(NUM_ROWS, NUM_DOCIDS, columnFamilies, otherColumnFamilies, docs);
    ArrayList<SortedKeyValueIterator<Key,Value>> sourceIters = new ArrayList<SortedKeyValueIterator<Key,Value>>();
    sourceIters.add(source);
    sourceIters.add(source2);
    MultiIterator mi = new MultiIterator(sourceIters, false);
    IteratorSetting is = new IteratorSetting(1, IndexedDocIterator.class);
    IndexedDocIterator.setColumnFamilies(is, columnFamilies);
    IndexedDocIterator.setColfs(is, indexColf.toString(), docColfPrefix);
    IndexedDocIterator iter = new IndexedDocIterator();
    iter.init(mi, is.getOptions(), env);
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    SortedMap<Key,Value> map = new TreeMap<Key,Value>();
    map.putAll(map1);
    map.putAll(map2);
   
    MultiIterator source = new MultiIterator(Collections.singletonList((SortedKeyValueIterator<Key,Value>) new SortedMapIterator(map)), new Range(null, true,
        new Text("row1"), true));
    WholeRowIterator iter = new WholeRowIterator(source);
   
    Range range = new Range(new Text("row1"), true, new Text("row2"), true);
    iter.seek(range, new ArrayList<ByteSequence>(), false);
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  SortedKeyValueIterator<Key,Value> getTopLevelIterator(SortedKeyValueIterator<Key,Value> iter) {
    if (topLevelIterators.isEmpty())
      return iter;
    ArrayList<SortedKeyValueIterator<Key,Value>> allIters = new ArrayList<SortedKeyValueIterator<Key,Value>>(topLevelIterators);
    allIters.add(iter);
    return new MultiIterator(allIters, false);
  }
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    SortedKeyValueIterator<Key,Value> source = createIteratorStack(hitRatio, NUM_ROWS, NUM_DOCIDS, columnFamilies, otherColumnFamilies, docs);
    SortedKeyValueIterator<Key,Value> source2 = createIteratorStack(hitRatio, NUM_ROWS, NUM_DOCIDS, columnFamilies, otherColumnFamilies, docs);
    ArrayList<SortedKeyValueIterator<Key,Value>> sourceIters = new ArrayList<SortedKeyValueIterator<Key,Value>>();
    sourceIters.add(source);
    sourceIters.add(source2);
    MultiIterator mi = new MultiIterator(sourceIters, false);
    IteratorSetting is = new IteratorSetting(1, IndexedDocIterator.class);
    IndexedDocIterator.setColumnFamilies(is, columnFamilies);
    IndexedDocIterator.setColfs(is, indexColf.toString(), docColfPrefix);
    IndexedDocIterator iter = new IndexedDocIterator();
    iter.init(mi, is.getOptions(), env);
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    SortedKeyValueIterator<Key,Value> source = createIteratorStack(hitRatio, NUM_ROWS, NUM_DOCIDS, columnFamilies, otherColumnFamilies, docs);
    SortedKeyValueIterator<Key,Value> source2 = createIteratorStack(hitRatio, NUM_ROWS, NUM_DOCIDS, columnFamilies, otherColumnFamilies, docs);
    ArrayList<SortedKeyValueIterator<Key,Value>> sourceIters = new ArrayList<SortedKeyValueIterator<Key,Value>>();
    sourceIters.add(source);
    sourceIters.add(source2);
    MultiIterator mi = new MultiIterator(sourceIters, false);
    IteratorSetting is = new IteratorSetting(1, IntersectingIterator.class);
    IntersectingIterator.setColumnFamilies(is, columnFamilies);
    IntersectingIterator iter = new IntersectingIterator();
    iter.init(mi, is.getOptions(), env);
    iter.seek(new Range(), EMPTY_COL_FAMS, false);
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    List<SortedKeyValueIterator<Key,Value>> sources = new ArrayList<SortedKeyValueIterator<Key,Value>>(3);
    sources.add(new SortedMapIterator(tm1));
    sources.add(new SortedMapIterator(tm2));
    sources.add(new SortedMapIterator(tm3));
   
    MultiIterator mi = new MultiIterator(sources, true);
    ai.init(mi, opts, null);
    ai.seek(new Range(), EMPTY_COL_FAMS, false);
   
    assertTrue(ai.hasTop());
    assertEquals(nk(1, 1, 1, 1), ai.getTopKey());
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    List<SortedKeyValueIterator<Key,Value>> sources = new ArrayList<SortedKeyValueIterator<Key,Value>>(3);
    sources.add(new SortedMapIterator(tm1));
    sources.add(new SortedMapIterator(tm2));
    sources.add(new SortedMapIterator(tm3));
   
    MultiIterator mi = new MultiIterator(sources, true);
    ai.init(mi, is.getOptions(), null);
    ai.seek(new Range(), EMPTY_COL_FAMS, false);
   
    assertTrue(ai.hasTop());
    assertEquals(nk(1, 1, 1, 1), ai.getTopKey());
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    for (String file : absFiles) {
      FileSKVIterator reader = FileOperations.getInstance().openReader(file, false, fs, conf, acuTableConf, null, null);
      readers.add(reader);
    }
   
    MultiIterator multiIter = new MultiIterator(readers, extent);
   
    OfflineIteratorEnvironment iterEnv = new OfflineIteratorEnvironment();
   
    DeletingIterator delIter = new DeletingIterator(multiIter, false);
   
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    SortedKeyValueIterator<Key,Value> getTopLevelIterator(SortedKeyValueIterator<Key,Value> iter) {
      if (topLevelIterators.isEmpty())
        return iter;
      ArrayList<SortedKeyValueIterator<Key,Value>> allIters = new ArrayList<SortedKeyValueIterator<Key,Value>>(topLevelIterators);
      allIters.add(iter);
      return new MultiIterator(allIters, false);
    }
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Related Classes of org.apache.accumulo.core.iterators.system.MultiIterator

  • org.apache.accumulo.core.client.impl.OfflineIterator
  • org.apache.accumulo.core.client.impl.OfflineIterator$OfflineIteratorEnvironment
  • org.apache.accumulo.core.client.mock.MockScannerBase$MockIteratorEnvironment
  • org.apache.accumulo.core.data.Range
  • org.apache.accumulo.core.file.FileUtil
  • org.apache.accumulo.core.iterators.AggregatingIteratorTest
  • org.apache.accumulo.core.iterators.system.MultiIteratorTest
  • org.apache.accumulo.core.iterators.user.CombinerTest
  • org.apache.accumulo.core.iterators.user.IndexedDocIteratorTest
  • org.apache.accumulo.core.iterators.user.IntersectingIteratorTest
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