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);
      Assert.assertEquals(localPage.getRecordsCount(), 0);


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


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


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


      int written = localPage.replaceRecord(index, new byte[] { 5, 2, 3, 4, 5, 11, 5, 4, 3, 2, 1, 3 }, null);
      Assert.assertEquals(localPage.getFreeSpace(), freeSpace);
      Assert.assertEquals(written, 11);

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


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


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


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


      int written = localPage.replaceRecord(index, new byte[] { 5, 2, 3, 4, 5, 11, 5, 4, 3, 2, 1, 3 }, newRecordVersion);
      Assert.assertEquals(localPage.getFreeSpace(), freeSpace);
      Assert.assertEquals(written, 11);

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        }


        try {
          beginResponse(network);
          final ORID responseRid = network.readRID();
          final ORecordVersion responseVersion = network.readVersion();


          return new ORecordMetadata(responseRid, responseVersion);
        } finally {
          endResponse(network);
        }

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          // ASYNCHRONOUS
          final int sessionId = getSessionId();
          final OSBTreeCollectionManager collectionManager = ODatabaseRecordThreadLocal.INSTANCE.get().getSbTreeCollectionManager();
          Callable<Object> response = new Callable<Object>() {
            public Object call() throws Exception {
              ORecordVersion result;


              try {
                OStorageRemoteThreadLocal.INSTANCE.get().sessionId = sessionId;
                beginResponse(network);
                result = network.readVersion();

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    final EntityStringVersion loadedObject = database.load(object.getRid());


    Assert.assertNotSame(object.getVersion(), loadedObject.getVersion(), "The same object of entity is shared between entities");
    Assert.assertEquals(object.getVersion(), loadedObject.getVersion());


    final ORecordVersion version = OVersionFactory.instance().createVersion();
    version.getSerializer().fromString(loadedObject.getVersion(), version);
    final ODocument document = database.getUnderlying().load(object.getRid());
    Assert.assertEquals(version, document.getRecordVersion());
    Assert.assertEquals(loadedObject.getVersion(), document.getRecordVersion().toString());
  }

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    getClassFields(iPojo.getClass());
    final Field idField = fieldVersions.get(iPojo.getClass());
    if (idField != null) {
      final Object ver = getFieldValue(iPojo, idField.getName());


      final ORecordVersion version = convertVersion(ver);
      if (version != null)
        return version;
    }
    throw new OObjectNotDetachedException("Cannot retrieve the object's VERSION for '" + iPojo + "' because has not been detached");
  }

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  private static ORecordVersion convertVersion(final Object ver) {
    if (ver != null) {
      if (ver instanceof ORecordVersion) {
        return (ORecordVersion) ver;
      } else if (ver instanceof Number) {
        final ORecordVersion version = OVersionFactory.instance().createVersion();
        if (version instanceof OSimpleVersion) {
          // TREATS AS CLUSTER POSITION
          version.setCounter(((Number) ver).intValue());
          return version;
        }
      } else if (ver instanceof String) {
        final ORecordVersion version = OVersionFactory.instance().createVersion();
        version.getSerializer().fromString((String) ver, version);
        return version;
      } else
        OLogManager.instance().warn(OObjectSerializerHelper.class,
            "@Version field has been declared as %s while the supported are: Number, String, Object", ver.getClass());
    }

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      return network.readRID();
    } else {
      final ORecord record = Orient.instance().getRecordFactoryManager().newInstance(network.readByte());


      final ORecordId rid = network.readRID();
      final ORecordVersion version = network.readVersion();
      final byte[] content = network.readBytes();
      ORecordInternal.fill(record, rid, version, content, false);


      return record;
    }

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    boolean versionConfigured = false;
    if (vField != null) {
      versionConfigured = true;
      Object ver = getFieldValue(iPojo, vField.getName());


      final ORecordVersion version = convertVersion(ver);
      if (version != null)
        iRecord.getRecordVersion().copyFrom(version);
    }


    if (db.isMVCC() && !versionConfigured && db.getTransaction() instanceof OTransactionOptimistic)

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      final int recordVersion = readInt();
      final long timestamp = readLong();
      final long macAddress = readLong();
      return OVersionFactory.instance().createDistributedVersion(recordVersion, timestamp, macAddress);
    } else {
      final ORecordVersion version = OVersionFactory.instance().createVersion();
      version.setCounter(readInt());
      return version;
    }
  }

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