Java Code Examples for org.apache.hadoop.hbase.client.Scan#hasFilter()

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Example 1
Source File: SnapshotFilterImpl.java    From phoenix-omid with Apache License 2.0 5 votes vote down vote up 
TransactionalClientScanner(HBaseTransaction state, Scan scan, int maxVersions)
        throws IOException {
    if (scan.hasFilter()) {
        LOG.warn("Client scanner with filter will return un expected results. Use Coprocessor scanning");
    }
    this.state = state;
    this.innerScanner = tableAccessWrapper.getScanner(scan);
    this.maxVersions = maxVersions;
    this.familyDeletionCache = new HashMap<String, Long>();
    this.attributeMap = scan.getAttributesMap();
}
Example 2
Source File: ScanQueryMatcher.java    From hbase with Apache License 2.0 4 votes vote down vote up 
protected static Pair<DeleteTracker, ColumnTracker> getTrackers(RegionCoprocessorHost host,
    NavigableSet<byte[]> columns, ScanInfo scanInfo, long oldestUnexpiredTS, Scan userScan)
    throws IOException {
  int resultMaxVersion = scanInfo.getMaxVersions();
  int maxVersionToCheck = resultMaxVersion;
  if (userScan != null) {
    if (userScan.isRaw()) {
      resultMaxVersion = userScan.getMaxVersions();
      maxVersionToCheck = userScan.hasFilter() ? Integer.MAX_VALUE : resultMaxVersion;
    } else {
      resultMaxVersion = Math.min(userScan.getMaxVersions(), scanInfo.getMaxVersions());
      maxVersionToCheck = userScan.hasFilter() ? scanInfo.getMaxVersions() : resultMaxVersion;
    }
  }

  DeleteTracker deleteTracker;
  if (scanInfo.isNewVersionBehavior() && (userScan == null || !userScan.isRaw())) {
    deleteTracker = new NewVersionBehaviorTracker(columns, scanInfo.getComparator(),
        scanInfo.getMinVersions(), scanInfo.getMaxVersions(), resultMaxVersion,
        oldestUnexpiredTS);
  } else {
    deleteTracker = new ScanDeleteTracker(scanInfo.getComparator());
  }
  if (host != null) {
    deleteTracker = host.postInstantiateDeleteTracker(deleteTracker);
    if (deleteTracker instanceof VisibilityScanDeleteTracker && scanInfo.isNewVersionBehavior()) {
      deleteTracker = new VisibilityNewVersionBehaivorTracker(columns, scanInfo.getComparator(),
          scanInfo.getMinVersions(), scanInfo.getMaxVersions(), resultMaxVersion,
          oldestUnexpiredTS);
    }
  }

  ColumnTracker columnTracker;

  if (deleteTracker instanceof NewVersionBehaviorTracker) {
    columnTracker = (NewVersionBehaviorTracker) deleteTracker;
  } else if (columns == null || columns.size() == 0) {
    columnTracker = new ScanWildcardColumnTracker(scanInfo.getMinVersions(), maxVersionToCheck,
        oldestUnexpiredTS, scanInfo.getComparator());
  } else {
    columnTracker = new ExplicitColumnTracker(columns, scanInfo.getMinVersions(),
      maxVersionToCheck, oldestUnexpiredTS);
  }
  return new Pair<>(deleteTracker, columnTracker);
}