Package com.orientechnologies.orient.core.storage

Examples of com.orientechnologies.orient.core.storage.OCluster

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  public boolean dropCluster(final int iClusterId) {
    lock.acquireExclusiveLock();
    try {

      OCluster c = clusters.get(iClusterId);
      c.delete();
      clusters.set(iClusterId, null);
      getLevel2Cache().freeCluster(iClusterId);

    } catch (IOException e) {
    } finally {
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    lock.acquireSharedLock();
    try {

      final long offset = data.createRecord(iContent);
      final OCluster cluster = getClusterById(iRid.clusterId);

      iRid.clusterPosition = cluster.addPhysicalPosition(0, offset, iRecordType);
      return iRid.clusterPosition;
    } catch (IOException e) {
      throw new OStorageException("Error on create record in cluster: " + iRid.clusterId, e);

    } finally {
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  }

  public int updateRecord(final ORecordId iRid, final byte[] iContent, final int iVersion, final byte iRecordType) {
    final long timer = OProfiler.getInstance().startChrono();

    final OCluster cluster = getClusterById(iRid.clusterId);

    lock.acquireSharedLock();
    try {

      lockManager.acquireLock(Thread.currentThread(), iRid, LOCK.EXCLUSIVE);
      try {

        final OPhysicalPosition ppos = cluster.getPhysicalPosition(iRid.clusterPosition, new OPhysicalPosition());
        if (ppos == null)
          return -1;

        // MVCC TRANSACTION: CHECK IF VERSION IS THE SAME
        if (iVersion > -1 && ppos.version != iVersion)
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  }

  public boolean deleteRecord(final ORecordId iRid, final int iVersion) {
    final long timer = OProfiler.getInstance().startChrono();

    final OCluster cluster = getClusterById(iRid.clusterId);

    lock.acquireSharedLock();
    try {

      lockManager.acquireLock(Thread.currentThread(), iRid, LOCK.EXCLUSIVE);
      try {

        final OPhysicalPosition ppos = cluster.getPhysicalPosition(iRid.clusterPosition, new OPhysicalPosition());

        if (ppos == null)
          return false;

        // MVCC TRANSACTION: CHECK IF VERSION IS THE SAME
        if (iVersion > -1 && ppos.version != iVersion)
          throw new OConcurrentModificationException(
              "Can't delete record "
                  + iRid
                  + " because the version is not the latest one. Probably you are deleting an old record or it has been modified by another user (db=v"
                  + ppos.version + " your=v" + iVersion + ")");

        cluster.removePhysicalPosition(iRid.clusterPosition, null);
        data.deleteRecord(ppos.dataPosition);

        return true;

      } finally {
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      OProfiler.getInstance().stopChrono("OStorageMemory.deleteRecord", timer);
    }
  }

  public long count(final int iClusterId) {
    final OCluster cluster = getClusterById(iClusterId);

    lock.acquireSharedLock();
    try {

      return cluster.getEntries();

    } finally {
      lock.releaseSharedLock();
    }
  }
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      lock.releaseSharedLock();
    }
  }

  public long[] getClusterDataRange(final int iClusterId) {
    final OCluster cluster = getClusterById(iClusterId);
    lock.acquireSharedLock();
    try {

      return new long[] { cluster.getFirstEntryPosition(), cluster.getLastEntryPosition() };

    } catch (IOException e) {
      throw new OStorageException("Error on getting last entry position in cluster: " + iClusterId, e);
    } finally {
      lock.releaseSharedLock();
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  private void commitEntry(final int iTxId, final OTransactionRecordEntry txEntry) throws IOException {

    final ORecordId rid = (ORecordId) txEntry.getRecord().getIdentity();

    final OCluster cluster = txEntry.clusterName != null ? getClusterByName(txEntry.clusterName) : getClusterById(rid.clusterId);
    rid.clusterId = cluster.getId();

    switch (txEntry.status) {
    case OTransactionRecordEntry.LOADED:
      break;
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    if (txEntry.status != OTransactionRecordEntry.DELETED && !txEntry.getRecord().isDirty())
      return;

    final ORecordId rid = (ORecordId) txEntry.getRecord().getIdentity();

    final OCluster cluster = txEntry.clusterName != null ? storage.getClusterByName(txEntry.clusterName) : storage
        .getClusterById(rid.clusterId);

    if (cluster.getName().equals(OStorage.CLUSTER_INDEX_NAME))
      // AVOID TO COMMIT INDEX STUFF
      return;

    if (!(cluster instanceof OClusterLocal))
      // ONLY LOCAL CLUSTER ARE INVOLVED IN TX
      return;

    if (txEntry.getRecord() instanceof OTxListener)
      ((OTxListener) txEntry.getRecord()).onEvent(txEntry, OTxListener.EVENT.BEFORE_COMMIT);

    switch (txEntry.status) {
    case OTransactionRecordEntry.LOADED:
      break;

    case OTransactionRecordEntry.CREATED: {
      // CHECK 2 TIMES TO ASSURE THAT IT'S A CREATE OR AN UPDATE BASED ON RECURSIVE TO-STREAM METHOD
      byte[] stream = txEntry.getRecord().toStream();

      if (rid.isNew()) {
        if (iTx.getDatabase().callbackHooks(ORecordHook.TYPE.BEFORE_CREATE, txEntry.getRecord()))
          // RECORD CHANGED: RE-STREAM IT
          stream = txEntry.getRecord().toStream();

        rid.clusterId = cluster.getId();

        if (iUseLog)
          createRecord(iTx.getId(), cluster, rid, stream, txEntry.getRecord().getRecordType());
        else
          iTx.getDatabase().getStorage().createRecord(rid, stream, txEntry.getRecord().getRecordType());
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  public boolean dropCluster(final int iClusterId) {
    lock.acquireExclusiveLock();
    try {

      OCluster c = clusters.get(iClusterId);
      c.delete();
      clusters.set(iClusterId, null);
      getLevel2Cache().freeCluster(iClusterId);

    } catch (IOException e) {
    } finally {
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    lock.acquireSharedLock();
    try {

      final long offset = data.createRecord(iContent);
      final OCluster cluster = getClusterById(iRid.clusterId);

      iRid.clusterPosition = cluster.addPhysicalPosition(0, offset, iRecordType);
      return iRid.clusterPosition;
    } catch (IOException e) {
      throw new OStorageException("Error on create record in cluster: " + iRid.clusterId, e);

    } finally {
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Related Classes of com.orientechnologies.orient.core.storage.OCluster

  • com.orientechnologies.orient.client.remote.OStorageRemote
  • com.orientechnologies.orient.console.OConsoleDatabaseApp
  • com.orientechnologies.orient.core.metadata.schema.OSchemaShared
  • com.orientechnologies.orient.core.sql.OCommandExecutorSQLAlterCluster
  • com.orientechnologies.orient.core.sql.OCommandExecutorSQLDropClass
  • com.orientechnologies.orient.core.sql.OCommandExecutorSQLTruncateCluster
  • com.orientechnologies.orient.core.storage.impl.local.OAbstractPaginatedStorage
  • com.orientechnologies.orient.core.storage.impl.local.ODataLocal
  • com.orientechnologies.orient.core.storage.impl.local.OStorageLocal
  • com.orientechnologies.orient.core.storage.impl.local.OStorageLocalTxExecuter
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