Examples of com.orientechnologies.orient.core.version.ORecordVersion

Package com.orientechnologies.orient.core.version

Examples of com.orientechnologies.orient.core.version.ORecordVersion

com.orientechnologies.orient.core.version.ORecordVersion
Abstraction for record version. In non distributed environment it is just a number represented by {@link OSimpleVersion}. In distributed environment records can be processed concurrently, so simple number is not enough, as we need some additional information to prevent generation of two different versions of document with the same version number. This interface provide an ability to create extended versions. @author Artem Orobets @see OSimpleVersion @see ODistributedVersion


    OCacheEntry cacheEntry = new OCacheEntry(0, 0, cachePointer, false);
    try {
      OClusterPage localPage = new OClusterPage(cacheEntry, true, ODurablePage.TrackMode.FULL);


      ORecordVersion recordVersion = OVersionFactory.instance().createVersion();
      recordVersion.increment();


      List<Integer> positions = new ArrayList<Integer>();
      int lastPosition;
      byte counter = 0;
      int freeSpace = localPage.getFreeSpace();

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    OCacheEntry cacheEntry = new OCacheEntry(0, 0, cachePointer, false);
    try {
      OClusterPage localPage = new OClusterPage(cacheEntry, true, ODurablePage.TrackMode.FULL);


      ORecordVersion recordVersion = OVersionFactory.instance().createVersion();
      recordVersion.increment();
      recordVersion.increment();


      int position = localPage.appendRecord(recordVersion, new byte[] { 1, 2, 3, 4, 5, 6, 5, 4, 3, 2, 1 }, false);


      Assert.assertTrue(localPage.deleteRecord(position));


      ORecordVersion newRecordVersion = OVersionFactory.instance().createVersion();


      Assert
          .assertEquals(localPage.appendRecord(newRecordVersion, new byte[] { 2, 2, 2, 4, 5, 6, 5, 4, 2, 2, 2 }, false), position);


      int recordSize = localPage.getRecordSize(position);

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    OCacheEntry cacheEntry = new OCacheEntry(0, 0, cachePointer, false);
    try {
      OClusterPage localPage = new OClusterPage(cacheEntry, true, ODurablePage.TrackMode.FULL);


      ORecordVersion recordVersion = OVersionFactory.instance().createVersion();
      recordVersion.increment();
      recordVersion.increment();


      int position = localPage.appendRecord(recordVersion, new byte[] { 1, 2, 3, 4, 5, 6, 5, 4, 3, 2, 1 }, false);


      Assert.assertTrue(localPage.deleteRecord(position));


      ORecordVersion newRecordVersion = OVersionFactory.instance().createVersion();


      Assert.assertEquals(localPage.appendRecord(newRecordVersion, new byte[] { 2, 2, 2, 4, 5, 6, 5, 4, 2, 2, 2 }, true), position);


      int recordSize = localPage.getRecordSize(position);
      Assert.assertEquals(recordSize, 11);

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    OCacheEntry cacheEntry = new OCacheEntry(0, 0, cachePointer, false);
    try {
      OClusterPage localPage = new OClusterPage(cacheEntry, true, ODurablePage.TrackMode.FULL);


      ORecordVersion recordVersion = OVersionFactory.instance().createVersion();
      recordVersion.increment();
      recordVersion.increment();


      int position = localPage.appendRecord(recordVersion, new byte[] { 1, 2, 3, 4, 5, 6, 5, 4, 3, 2, 1 }, false);


      Assert.assertTrue(localPage.deleteRecord(position));


      ORecordVersion newRecordVersion = OVersionFactory.instance().createVersion();
      newRecordVersion.increment();
      newRecordVersion.increment();
      newRecordVersion.increment();
      newRecordVersion.increment();


      Assert
          .assertEquals(localPage.appendRecord(newRecordVersion, new byte[] { 2, 2, 2, 4, 5, 6, 5, 4, 2, 2, 2 }, false), position);


      int recordSize = localPage.getRecordSize(position);

View Full Code Here


    OCacheEntry cacheEntry = new OCacheEntry(0, 0, cachePointer, false);
    try {
      OClusterPage localPage = new OClusterPage(cacheEntry, true, ODurablePage.TrackMode.FULL);


      ORecordVersion recordVersion = OVersionFactory.instance().createVersion();
      recordVersion.increment();
      recordVersion.increment();


      int position = localPage.appendRecord(recordVersion, new byte[] { 1, 2, 3, 4, 5, 6, 5, 4, 3, 2, 1 }, false);


      Assert.assertTrue(localPage.deleteRecord(position));


      Assert.assertEquals(localPage.appendRecord(recordVersion, new byte[] { 2, 2, 2, 4, 5, 6, 5, 4, 2, 2, 2 }, false), position);


      int recordSize = localPage.getRecordSize(position);
      Assert.assertEquals(recordSize, 11);


      recordVersion.increment();
      Assert.assertEquals(localPage.getRecordVersion(position), recordVersion);
      Assert.assertEquals(localPage.getRecordBinaryValue(position, 0, recordSize), new byte[] { 2, 2, 2, 4, 5, 6, 5, 4, 2, 2, 2 });


      assertChangesTracking(localPage, pagePointer);
    } finally {

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    OCacheEntry cacheEntry = new OCacheEntry(0, 0, cachePointer, false);
    try {
      OClusterPage localPage = new OClusterPage(cacheEntry, true, ODurablePage.TrackMode.FULL);


      ORecordVersion recordVersion = OVersionFactory.instance().createVersion();
      recordVersion.increment();
      recordVersion.increment();


      int position = localPage.appendRecord(recordVersion, new byte[] { 1, 2, 3, 4, 5, 6, 5, 4, 3, 2, 1 }, false);


      Assert.assertTrue(localPage.deleteRecord(position));

View Full Code Here


    OCacheEntry cacheEntry = new OCacheEntry(0, 0, cachePointer, false);
    try {
      OClusterPage localPage = new OClusterPage(cacheEntry, true, ODurablePage.TrackMode.FULL);


      ORecordVersion recordVersion = OVersionFactory.instance().createVersion();
      recordVersion.increment();


      int positionOne = localPage.appendRecord(recordVersion, new byte[] { 1, 2, 3, 4, 5, 6, 5, 4, 3, 2, 1 }, false);
      int positionTwo = localPage.appendRecord(recordVersion, new byte[] { 2, 2, 3, 4, 5, 6, 5, 4, 3, 2, 2 }, false);
      int positionThree = localPage.appendRecord(recordVersion, new byte[] { 3, 2, 3, 4, 5, 6, 5, 4, 3, 2, 3 }, false);
      int positionFour = localPage.appendRecord(recordVersion, new byte[] { 4, 2, 3, 4, 5, 6, 5, 4, 3, 2, 4 }, false);

View Full Code Here

      Set<Integer> deletedPositions = new HashSet<Integer>();


      int lastPosition;
      byte counter = 0;
      int freeSpace = localPage.getFreeSpace();
      ORecordVersion recordVersion = OVersionFactory.instance().createVersion();
      recordVersion.increment();


      do {
        lastPosition = localPage.appendRecord(recordVersion, new byte[] { counter, counter, counter }, false);
        if (lastPosition >= 0) {
          Assert.assertEquals(lastPosition, positionCounter.size());
          positionCounter.put(lastPosition, counter);
          counter++;


          Assert.assertEquals(localPage.getFreeSpace(), freeSpace - (19 + OVersionFactory.instance().getVersionSize()));
          freeSpace = localPage.getFreeSpace();
        }
      } while (lastPosition >= 0);


      int filledRecordsCount = positionCounter.size();
      Assert.assertEquals(localPage.getRecordsCount(), filledRecordsCount);


      for (int i = 0; i < filledRecordsCount; i += 2) {
        localPage.deleteRecord(i);
        deletedPositions.add(i);
        positionCounter.remove(i);
      }


      freeSpace = localPage.getFreeSpace();
      do {
        lastPosition = localPage.appendRecord(recordVersion, new byte[] { counter, counter, counter }, false);
        if (lastPosition >= 0) {
          positionCounter.put(lastPosition, counter);
          counter++;


          Assert.assertEquals(localPage.getFreeSpace(), freeSpace - 15);
          freeSpace = localPage.getFreeSpace();
        }
      } while (lastPosition >= 0);


      ORecordVersion deletedVersion = OVersionFactory.instance().createVersion();
      deletedVersion.copyFrom(recordVersion);


      deletedVersion.increment();


      Assert.assertEquals(localPage.getRecordsCount(), filledRecordsCount);
      for (Map.Entry<Integer, Byte> entry : positionCounter.entrySet()) {
        Assert.assertEquals(localPage.getRecordBinaryValue(entry.getKey(), 0, 3), new byte[] { entry.getValue(), entry.getValue(),
            entry.getValue() });

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      Set<Integer> deletedPositions = new HashSet<Integer>();


      int lastPosition;
      byte counter = 0;
      int freeSpace = localPage.getFreeSpace();
      ORecordVersion recordVersion = OVersionFactory.instance().createVersion();
      recordVersion.increment();


      do {
        lastPosition = localPage.appendRecord(recordVersion, new byte[] { counter, counter, counter }, false);
        if (lastPosition >= 0) {
          Assert.assertEquals(lastPosition, positionCounter.size());
          positionCounter.put(lastPosition, counter);
          counter++;


          Assert.assertEquals(localPage.getFreeSpace(), freeSpace - (19 + OVersionFactory.instance().getVersionSize()));
          freeSpace = localPage.getFreeSpace();
        }
      } while (lastPosition >= 0);


      int filledRecordsCount = positionCounter.size();
      Assert.assertEquals(localPage.getRecordsCount(), filledRecordsCount);


      for (int i = 0; i < filledRecordsCount; i += 2) {
        localPage.deleteRecord(i);
        deletedPositions.add(i);
        positionCounter.remove(i);
      }


      freeSpace = localPage.getFreeSpace();
      do {
        lastPosition = localPage.appendRecord(recordVersion, new byte[] { counter, counter, counter }, false);
        if (lastPosition >= 0) {
          positionCounter.put(lastPosition, counter);
          counter++;


          Assert.assertEquals(localPage.getFreeSpace(), freeSpace - 15);
          freeSpace = localPage.getFreeSpace();
        }
      } while (lastPosition >= 0);


      ORecordVersion deletedVersion = OVersionFactory.instance().createVersion();
      deletedVersion.copyFrom(recordVersion);


      deletedVersion.increment();


      Assert.assertEquals(localPage.getRecordsCount(), filledRecordsCount);
      for (Map.Entry<Integer, Byte> entry : positionCounter.entrySet()) {
        Assert.assertEquals(localPage.getRecordBinaryValue(entry.getKey(), 0, 3), new byte[] { entry.getValue(), entry.getValue(),
            entry.getValue() });

View Full Code Here


    OCacheEntry cacheEntry = new OCacheEntry(0, 0, cachePointer, false);
    try {
      OClusterPage localPage = new OClusterPage(cacheEntry, true, ODurablePage.TrackMode.FULL);


      ORecordVersion recordVersion = OVersionFactory.instance().createVersion();
      recordVersion.increment();
      recordVersion.increment();


      final byte[] bigChunk = new byte[OClusterPage.MAX_ENTRY_SIZE / 2];
      final MersenneTwisterFast mersenneTwisterFast = new MersenneTwisterFast();
      mersenneTwisterFast.nextBytes(bigChunk);


      int position = localPage.appendRecord(recordVersion, bigChunk, false);
      Assert.assertEquals(position, 0);
      Assert.assertEquals(localPage.getRecordVersion(0), recordVersion);


      Assert.assertTrue(localPage.deleteRecord(0));


      recordVersion.increment();
      int freeSpace = localPage.getFreeSpace();
      Map<Integer, Byte> positionCounter = new HashMap<Integer, Byte>();
      int lastPosition;
      byte counter = 0;
      do {

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