Package com.continuuity.tephra

Examples of com.continuuity.tephra.Transaction

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  }

  @Override
  public RegionScanner preScannerOpen(ObserverContext<RegionCoprocessorEnvironment> e, Scan scan, RegionScanner s)
    throws IOException {
    Transaction tx = txCodec.getFromOperation(scan);
    if (tx != null) {
      scan.setMaxVersions(tx.excludesSize() + 1);
      scan.setTimeRange(TxUtils.getOldestVisibleTimestamp(ttlByFamily, tx), TxUtils.getMaxVisibleTimestamp(tx));
      Filter newFilter = Filters.combine(getTransactionFilter(tx), scan.getFilter());
      scan.setFilter(newFilter);
    }
    return s;
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      }
      return null;
    }

    // construct a dummy transaction from the latest snapshot
    Transaction dummyTx = TxUtils.createDummyTransaction(snapshot);
    Scan scan = new Scan();
    // does not current support max versions setting per family
    scan.setMaxVersions(dummyTx.excludesSize() + 1);
    scan.setFilter(new IncludeInProgressFilter(dummyTx.getVisibilityUpperBound(),
                                               snapshot.getInvalid(),
                                               getTransactionFilter(dummyTx)));

    return new StoreScanner(store, store.getScanInfo(), scan, scanners,
                            type, store.getSmallestReadPoint(), earliestPutTs);
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  }

  @Override
  public void preGetOp(ObserverContext<RegionCoprocessorEnvironment> e, Get get, List<Cell> results)
    throws IOException {
    Transaction tx = txCodec.getFromOperation(get);
    if (tx != null) {
      get.setMaxVersions(tx.excludesSize() + 1);
      get.setTimeRange(TxUtils.getOldestVisibleTimestamp(ttlByFamily, tx), TxUtils.getMaxVisibleTimestamp(tx));
      Filter newFilter = Filters.combine(getTransactionFilter(tx), get.getFilter());
      get.setFilter(newFilter);
    }
  }
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  }

  @Override
  public RegionScanner preScannerOpen(ObserverContext<RegionCoprocessorEnvironment> e, Scan scan, RegionScanner s)
    throws IOException {
    Transaction tx = txCodec.getFromOperation(scan);
    if (tx != null) {
      scan.setMaxVersions(tx.excludesSize() + 1);
      scan.setTimeRange(TxUtils.getOldestVisibleTimestamp(ttlByFamily, tx), TxUtils.getMaxVisibleTimestamp(tx));
      Filter newFilter = Filters.combine(getTransactionFilter(tx), scan.getFilter());
      scan.setFilter(newFilter);
    }
    return s;
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      }
      return null;
    }

    // construct a dummy transaction from the latest snapshot
    Transaction dummyTx = TxUtils.createDummyTransaction(snapshot);
    Scan scan = new Scan();
    // does not current support max versions setting per family
    scan.setMaxVersions(dummyTx.excludesSize() + 1);
    FilterList filterList = new FilterList(FilterList.Operator.MUST_PASS_ONE);
    filterList.addFilter(getTransactionFilter(dummyTx));
    filterList.addFilter(new IncludeInProgressFilter(dummyTx.getVisibilityUpperBound(),
                                                     snapshot.getInvalid()));
    scan.setFilter(filterList);

    return new StoreScanner(store, store.getScanInfo(), scan, scanners,
                            type, store.getSmallestReadPoint(), earliestPutTs);
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  }

  @Override
  public void preGet(ObserverContext<RegionCoprocessorEnvironment> e, Get get, List<KeyValue> results)
    throws IOException {
    Transaction tx = txCodec.getFromOperation(get);
    if (tx != null) {
      if (LOG.isTraceEnabled()) {
        LOG.trace("Applying filter to GET for transaction " + tx.getWritePointer());
      }
      get.setMaxVersions(tx.excludesSize() + 1);
      get.setTimeRange(TxUtils.getOldestVisibleTimestamp(ttlByFamily, tx), TxUtils.getMaxVisibleTimestamp(tx));
      Filter newFilter = combineFilters(new TransactionVisibilityFilter(tx, ttlByFamily, allowEmptyValues),
                                        get.getFilter());
      get.setFilter(newFilter);
    }
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  }

  @Override
  public RegionScanner preScannerOpen(ObserverContext<RegionCoprocessorEnvironment> e, Scan scan, RegionScanner s)
    throws IOException {
    Transaction tx = txCodec.getFromOperation(scan);
    if (tx != null) {
      if (LOG.isTraceEnabled()) {
        LOG.trace("Applying filter to SCAN for transaction " + tx.getWritePointer());
      }
      scan.setMaxVersions(tx.excludesSize() + 1);
      scan.setTimeRange(TxUtils.getOldestVisibleTimestamp(ttlByFamily, tx), TxUtils.getMaxVisibleTimestamp(tx));
      Filter newFilter = combineFilters(new TransactionVisibilityFilter(tx, ttlByFamily, allowEmptyValues),
                                        scan.getFilter());
      scan.setFilter(newFilter);
    }
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  }

  @Override
  public void preGetOp(ObserverContext<RegionCoprocessorEnvironment> e, Get get, List<Cell> results)
    throws IOException {
    Transaction tx = txCodec.getFromOperation(get);
    if (tx != null) {
      get.setMaxVersions(tx.excludesSize() + 1);
      get.setTimeRange(TxUtils.getOldestVisibleTimestamp(ttlByFamily, tx), TxUtils.getMaxVisibleTimestamp(tx));
      Filter newFilter = combineFilters(new TransactionVisibilityFilter(tx, ttlByFamily, allowEmptyValues),
                                        get.getFilter());
      get.setFilter(newFilter);
    }
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  }

  @Override
  public RegionScanner preScannerOpen(ObserverContext<RegionCoprocessorEnvironment> e, Scan scan, RegionScanner s)
    throws IOException {
    Transaction tx = txCodec.getFromOperation(scan);
    if (tx != null) {
      scan.setMaxVersions(tx.excludesSize() + 1);
      scan.setTimeRange(TxUtils.getOldestVisibleTimestamp(ttlByFamily, tx), TxUtils.getMaxVisibleTimestamp(tx));
      Filter newFilter = combineFilters(new TransactionVisibilityFilter(tx, ttlByFamily, allowEmptyValues),
                                        scan.getFilter());
      scan.setFilter(newFilter);
    }
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Related Classes of com.continuuity.tephra.Transaction

  • com.continuuity.tephra.coprocessor.hbase94.TransactionDataJanitor
  • com.continuuity.tephra.coprocessor.hbase96.TransactionDataJanitor
  • com.continuuity.tephra.distributed.ConverterUtils
  • com.continuuity.tephra.distributed.TransactionServiceClient
  • com.continuuity.tephra.hbase94.coprocessor.TransactionProcessor
  • com.continuuity.tephra.hbase96.coprocessor.TransactionProcessor
  • com.continuuity.tephra.hbase98.coprocessor.TransactionProcessor
  • com.continuuity.tephra.inmemory.InMemoryTransactionManager
  • com.continuuity.tephra.util.TxUtils
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