Package com.orientechnologies.orient.core.tx

Examples of com.orientechnologies.orient.core.tx.OTransactionIndexChanges

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  @Override
  public long getSize() {
    long tot = delegate.getSize();

    final OTransactionIndexChanges indexChanges = database.getTransaction().getIndexChanges(delegate.getName());
    if (indexChanges != null) {
      if (indexChanges.cleared)
        // BEGIN FROM 0
        tot = 0;
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    return this;
  }

  @Override
  public Object getFirstKey() {
    final OTransactionIndexChanges indexChanges = database.getTransaction().getIndexChanges(delegate.getName());
    if (indexChanges == null)
      return delegate.getFirstKey();

    Object indexFirstKey;
    if (indexChanges.cleared)
      indexFirstKey = null;
    else
      indexFirstKey = delegate.getFirstKey();

    Object firstKey = indexChanges.getFirstKey();
    while (true) {
      OTransactionIndexChangesPerKey changesPerKey = indexChanges.getChangesPerKey(firstKey);

      for (OTransactionIndexEntry indexEntry : changesPerKey.entries) {
        if (indexEntry.operation.equals(OPERATION.REMOVE))
          firstKey = null;
        else
          firstKey = changesPerKey.key;
      }

      if (changesPerKey.key.equals(indexFirstKey))
        indexFirstKey = firstKey;

      if (firstKey != null) {
        if (indexFirstKey != null && ((Comparable) indexFirstKey).compareTo(firstKey) < 0)
          return indexFirstKey;

        return firstKey;
      }

      firstKey = indexChanges.getHigherKey(changesPerKey.key);
      if (firstKey == null)
        return indexFirstKey;
    }
  }
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    }
  }

  @Override
  public Object getLastKey() {
    final OTransactionIndexChanges indexChanges = database.getTransaction().getIndexChanges(delegate.getName());
    if (indexChanges == null)
      return delegate.getLastKey();

    Object indexLastKey;
    if (indexChanges.cleared)
      indexLastKey = null;
    else
      indexLastKey = delegate.getLastKey();

    Object lastKey = indexChanges.getLastKey();
    while (true) {
      OTransactionIndexChangesPerKey changesPerKey = indexChanges.getChangesPerKey(lastKey);

      for (OTransactionIndexEntry indexEntry : changesPerKey.entries) {
        if (indexEntry.operation.equals(OPERATION.REMOVE))
          lastKey = null;
        else
          lastKey = changesPerKey.key;
      }

      if (changesPerKey.key.equals(indexLastKey))
        indexLastKey = lastKey;

      if (lastKey != null) {
        if (indexLastKey != null && ((Comparable) indexLastKey).compareTo(lastKey) > 0)
          return indexLastKey;

        return lastKey;
      }

      lastKey = indexChanges.getLowerKey(changesPerKey.key);
      if (lastKey == null)
        return indexLastKey;
    }
  }
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    super(database, delegate);
  }

  @Override
  public Set<OIdentifiable> get(final Object key) {
    final OTransactionIndexChanges indexChanges = database.getTransaction().getIndexChanges(delegate.getName());
    if (indexChanges == null)
      return super.get(key);

    final Set<OIdentifiable> result = new HashSet<OIdentifiable>();
    if (!indexChanges.cleared) {
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  @Override
  public OIndexCursor iterateEntriesBetween(final Object fromKey, final boolean fromInclusive, final Object toKey,
      final boolean toInclusive, final boolean ascOrder) {

    final OTransactionIndexChanges indexChanges = database.getTransaction().getIndexChanges(delegate.getName());
    if (indexChanges == null)
      return super.iterateEntriesBetween(fromKey, fromInclusive, toKey, toInclusive, ascOrder);

    final OIndexCursor txCursor;
    if (ascOrder)
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    return new OIndexTxCursor(txCursor, backedCursor, ascOrder, indexChanges);
  }

  @Override
  public OIndexCursor iterateEntriesMajor(Object fromKey, boolean fromInclusive, boolean ascOrder) {
    final OTransactionIndexChanges indexChanges = database.getTransaction().getIndexChanges(delegate.getName());
    if (indexChanges == null)
      return super.iterateEntriesMajor(fromKey, fromInclusive, ascOrder);

    final OIndexCursor txCursor;

    final Object lastKey = indexChanges.getLastKey();
    if (ascOrder)
      txCursor = new PureTxBetweenIndexForwardCursor(fromKey, fromInclusive, lastKey, true, indexChanges);
    else
      txCursor = new PureTxBetweenIndexBackwardCursor(fromKey, fromInclusive, lastKey, true, indexChanges);
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    return new OIndexTxCursor(txCursor, backedCursor, ascOrder, indexChanges);
  }

  @Override
  public OIndexCursor iterateEntriesMinor(Object toKey, boolean toInclusive, boolean ascOrder) {
    final OTransactionIndexChanges indexChanges = database.getTransaction().getIndexChanges(delegate.getName());
    if (indexChanges == null)
      return super.iterateEntriesMinor(toKey, toInclusive, ascOrder);

    final OIndexCursor txCursor;

    final Object firstKey = indexChanges.getFirstKey();
    if (ascOrder)
      txCursor = new PureTxBetweenIndexForwardCursor(firstKey, true, toKey, toInclusive, indexChanges);
    else
      txCursor = new PureTxBetweenIndexBackwardCursor(firstKey, true, toKey, toInclusive, indexChanges);
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    return new OIndexTxCursor(txCursor, backedCursor, ascOrder, indexChanges);
  }

  @Override
  public OIndexCursor iterateEntries(Collection<?> keys, boolean ascSortOrder) {
    final OTransactionIndexChanges indexChanges = database.getTransaction().getIndexChanges(delegate.getName());
    if (indexChanges == null)
      return super.iterateEntries(keys, ascSortOrder);

    final List<Object> sortedKeys = new ArrayList<Object>(keys);
    if (ascSortOrder)
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      final String indexName = indexEntry.getKey();
      final ODocument indexDoc = (ODocument) indexEntry.getValue();
      if (indexDoc == null)
        continue;

      OTransactionIndexChanges transactionIndexChanges = indexEntries.get(indexEntry.getKey());

      if (transactionIndexChanges == null) {
        transactionIndexChanges = new OTransactionIndexChanges();
        indexEntries.put(indexEntry.getKey(), transactionIndexChanges);
      }

      final Boolean clearAll = indexDoc.field("clear");
      if (clearAll != null && clearAll)
        transactionIndexChanges.setCleared();

      final Collection<ODocument> entries = indexDoc.field("entries");
      if (entries == null)
        continue;

      for (final ODocument entry : entries) {
        final List<ODocument> operations = entry.field("ops");
        if (operations == null)
          continue;

        final Object key;
        try {
          ODocument keyContainer;
          if (protocolVersion <= OChannelBinaryProtocol.PROTOCOL_VERSION_24) {

            final String serializedKey = OStringSerializerHelper.decode((String) entry.field("k"));
            if (serializedKey.equals("*"))
              keyContainer = null;
            else {
              keyContainer = new ODocument();
              keyContainer.setLazyLoad(false);
              ORecordSerializerSchemaAware2CSV.INSTANCE.fromString(serializedKey, keyContainer, null);
            }
          } else {
            keyContainer = entry.field("k");
          }
          if (keyContainer != null) {
            final Object storedKey = keyContainer.field("key");
            if (storedKey instanceof List)
              key = new OCompositeKey((List<? extends Comparable<?>>) storedKey);
            else if (Boolean.TRUE.equals(keyContainer.field("binary"))) {
              key = OStreamSerializerAnyStreamable.INSTANCE.fromStream((byte[]) storedKey);
            } else
              key = storedKey;
          } else
            key = null;
        } catch (IOException ioe) {
          throw new OTransactionException("Error during index changes deserialization. ", ioe);
        }

        for (final ODocument op : operations) {
          final int operation = (Integer) op.rawField("o");
          final OTransactionIndexChanges.OPERATION indexOperation = OTransactionIndexChanges.OPERATION.values()[operation];
          final OIdentifiable value = op.field("v");

          transactionIndexChanges.getChangesPerKey(key).add(value, indexOperation);

          if (value == null)
            continue;

          final ORID rid = value.getIdentity();
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Related Classes of com.orientechnologies.orient.core.tx.OTransactionIndexChanges

  • com.orientechnologies.orient.core.index.OIndexTxAware
  • com.orientechnologies.orient.core.index.OIndexTxAwareMultiValue
  • com.orientechnologies.orient.core.index.OIndexTxAwareOneValue
  • com.orientechnologies.orient.core.index.OIndexUser
  • com.orientechnologies.orient.server.tx.OTransactionOptimisticProxy
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