Examples of org.apache.hadoop.hbase.client.Result

org.apache.hadoop.hbase.client.Result
Single row result of a {@link Get} or {@link Scan} query.
This class is NOT THREAD SAFE.
Convenience methods are available that return various {@link Map}structures and values directly.
To get a complete mapping of all cells in the Result, which can include multiple families and multiple versions, use {@link #getMap()}.
To get a mapping of each family to its columns (qualifiers and values), including only the latest version of each, use {@link #getNoVersionMap()}. To get a mapping of qualifiers to latest values for an individual family use {@link #getFamilyMap(byte[])}.
To get the latest value for a specific family and qualifier use {@link #getValue(byte[],byte[])}. A Result is backed by an array of {@link KeyValue} objects, each representingan HBase cell defined by the row, family, qualifier, timestamp, and value.
The underlying {@link KeyValue} objects can be accessed through the method {@link #listCells()}. Each KeyValue can then be accessed through {@link KeyValue#getRow()}, {@link KeyValue#getFamily()}, {@link KeyValue#getQualifier()}, {@link KeyValue#getTimestamp()}, and {@link KeyValue#getValue()}.
If you need to overwrite a Result with another Result instance -- as in the old 'mapred' RecordReader next invocations -- then create an empty Result with the null constructor and in then use {@link #copyFrom(Result)}

    try {
      // Now the ct is up... set into the mocks some answers that make it look
      // like things have been getting assigned. Make it so we'll return a
      // location (no matter what the Get is). Same for getHRegionInfo -- always
      // just return the meta region.
      final Result result = getMetaTableRowResult();


      // TODO: Refactor.  This method has been moved out of HConnection.
      // It works for now but has been deprecated.
      Mockito.when(connection.getRegionServerWithRetries((ServerCallable<Result>)Mockito.any())).
        thenReturn(result);

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      HConstants.CATALOG_FAMILY, HConstants.SERVER_QUALIFIER,
      Bytes.toBytes(SN.getHostAndPort())));
    kvs.add(new KeyValue(HConstants.EMPTY_BYTE_ARRAY,
      HConstants.CATALOG_FAMILY, HConstants.STARTCODE_QUALIFIER,
      Bytes.toBytes(SN.getStartcode())));
    return new Result(kvs);
  }

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        byte[] column = split[0];
        byte[] qualifier = split.length > 1 ? split[1] : null;
        kvs.add(new KeyValue(row.getKey(), column, qualifier, 
          cell.getTimestamp(), cell.getValue()));
      }
      results.add(new Result(kvs));
    }
    return results.toArray(new Result[results.size()]);
  }

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          }
          return results[0];
        }
        // fall through
      case 404:
        return new Result();
      case 509:
        try {
          Thread.sleep(sleepTime);
        } catch (InterruptedException e) { }
        break;

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    throw new IOException("get request timed out");
  }


  public boolean exists(Get get) throws IOException {
    LOG.warn("exists() is really get(), just use get()");
    Result result = get(get);
    return (result != null && !(result.isEmpty()));
  }

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        return cache != null;
      }


      @Override
      public Result next() {
        Result result = cache;
        try {
          cache = Scanner.this.next();
        } catch (IOException e) {
          LOG.warn(StringUtils.stringifyException(e));
          cache = null;

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   * @throws IOException read exceptions
   */
  public Result getClosestRowBefore(final byte [] row, final byte [] family)
  throws IOException {
    if (coprocessorHost != null) {
      Result result = new Result();
      if (coprocessorHost.preGetClosestRowBefore(row, family, result)) {
        return result;
      }
    }
    // look across all the HStores for this region and determine what the
    // closest key is across all column families, since the data may be sparse
    checkRow(row, "getClosestRowBefore");
    startRegionOperation();
    this.readRequestsCount.increment();
    try {
      Store store = getStore(family);
      // get the closest key. (HStore.getRowKeyAtOrBefore can return null)
      KeyValue key = store.getRowKeyAtOrBefore(row);
      Result result = null;
      if (key != null) {
        Get get = new Get(key.getRow());
        get.addFamily(family);
        result = get(get, null);
      }

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   * @throws IOException When reading the record failed.
   * @throws InterruptedException When the job was aborted.
   */
  public boolean nextKeyValue() throws IOException, InterruptedException {
    if (key == null) key = new ImmutableBytesWritable();
    if (value == null) value = new Result();
    try {
      try {
        value = this.scanner.next();
        if (logScannerActivity) {
          rowcount ++;

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            replicatedScanner = replicatedTable.getScanner(scan);
            return null;
          }
        });
      }
      Result res = replicatedScanner.next();
      try {
        Result.compareResults(value, res);
        context.getCounter(Counters.GOODROWS).increment(1);
      } catch (Exception e) {
        LOG.warn("Bad row", e);

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    Get g = new Get(hri.getRegionName());
    g.addFamily(HConstants.CATALOG_FAMILY);
    try {
      HRegionInterface server =
        master.connection.getHRegionConnection(mr.getServer());
      Result r = server.get(mr.getRegionName(), g);
      // If size > 3 -- presume regioninfo, startcode and server -- then presume
      // that this daughter already assigned and return.
      if (r.size() >= 3) return;
    } catch (IOException e) {
      LOG.warn("Failed get on " + HConstants.CATALOG_FAMILY_STR +
        "; possible double-assignment?", e);
    }
    this.master.regionManager.setUnassigned(hri, false);

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