Examples of org.apache.hadoop.hbase.client.Get.addColumn()

Class org.apache.hadoop.hbase.client.Get

Examples of org.apache.hadoop.hbase.client.Get.addColumn()

org.apache.hadoop.hbase.client.Get.addColumn()
Get the column from the specific family with the specified qualifier.
Overrides previous calls to addFamily for this family. @param family family name @param qualifier column qualifier @return the Get objec

         NavigableSet<byte[]> qualifiers = entry.getValue();
         if (qualifiers == null || qualifiers.isEmpty()) {
            tsget.addFamily(family);
         } else {
            for (byte[] qualifier : qualifiers) {
               tsget.addColumn(family, qualifier);
            }
         }
      }
      getsPerformed++;
      // Return the KVs that belong to the transaction snapshot, ask for more versions if needed

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         ColumnWrapper currentColumn = new ColumnWrapper(kv.getFamily(), kv.getQualifier());
         if (!currentColumn.equals(lastColumn)) {
            // New column, if we didn't read a committed value for last one, add it to pending
            if (!validRead && versionsProcessed == localVersions) {
               Get get = new Get(kv.getRow());
               get.addColumn(kv.getFamily(), kv.getQualifier());
               get.setMaxVersions(requestVersions); // TODO set maxVersions wisely
               get.setTimeRange(0, oldestUncommittedTS - 1);
               pendingGets.add(get);
            }
            validRead = false;

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        for(ByteBuffer column : columns) {
          byte [][] famAndQf = KeyValue.parseColumn(getBytes(column));
          if (famAndQf.length == 1) {
              get.addFamily(famAndQf[0]);
          } else {
              get.addColumn(famAndQf[0], famAndQf[1]);
          }
        }
        get.setTimeRange(Long.MIN_VALUE, timestamp);
        Result result = table.get(get);
        return ThriftUtilities.rowResultFromHBase(result);

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            for(ByteBuffer column : columns) {
              byte [][] famAndQf = KeyValue.parseColumn(getBytes(column));
              if (famAndQf.length == 1) {
                get.addFamily(famAndQf[0]);
              } else {
                get.addColumn(famAndQf[0], famAndQf[1]);
              }
            }
          }
          get.setTimeRange(Long.MIN_VALUE, timestamp);
          gets.add(get);

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        Get get = new Get(getBytes(row));
        addAttributes(get, attributes);
        if (qualifier == null || qualifier.length == 0) {
          get.addFamily(family);
        } else {
          get.addColumn(family, qualifier);
        }
        Result result = table.get(get);
        return ThriftUtilities.cellFromHBase(result.raw());
      } catch (IOException e) {
        LOG.warn(e.getMessage(), e);

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        Map<ByteBuffer, ByteBuffer> attributes) throws IOError {
      try {
        HTable table = getTable(tableName);
        Get get = new Get(getBytes(row));
        addAttributes(get, attributes);
        get.addColumn(family, qualifier);
        get.setMaxVersions(numVersions);
        Result result = table.get(get);
        return ThriftUtilities.cellFromHBase(result.raw());
      } catch (IOException e) {
        LOG.warn(e.getMessage(), e);

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        Map<ByteBuffer, ByteBuffer> attributes) throws IOError {
      try {
        HTable table = getTable(tableName);
        Get get = new Get(getBytes(row));
        addAttributes(get, attributes);
        get.addColumn(family, qualifier);
        get.setTimeRange(Long.MIN_VALUE, timestamp);
        get.setMaxVersions(numVersions);
        Result result = table.get(get);
        return ThriftUtilities.cellFromHBase(result.raw());
      } catch (IOException e) {

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      return;
    }


    // get assignment info and hregioninfo from meta.
    Get get = new Get(hi.getRegionName());
    get.addColumn(HConstants.CATALOG_FAMILY, HConstants.REGIONINFO_QUALIFIER);
    get.addColumn(HConstants.CATALOG_FAMILY, HConstants.SERVER_QUALIFIER);
    get.addColumn(HConstants.CATALOG_FAMILY, HConstants.STARTCODE_QUALIFIER);
    Result r = meta.get(get);
    byte[] value = r.getValue(HConstants.CATALOG_FAMILY, HConstants.SERVER_QUALIFIER);
    byte[] startcodeBytes = r.getValue(HConstants.CATALOG_FAMILY, HConstants.STARTCODE_QUALIFIER);

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    }


    // get assignment info and hregioninfo from meta.
    Get get = new Get(hi.getRegionName());
    get.addColumn(HConstants.CATALOG_FAMILY, HConstants.REGIONINFO_QUALIFIER);
    get.addColumn(HConstants.CATALOG_FAMILY, HConstants.SERVER_QUALIFIER);
    get.addColumn(HConstants.CATALOG_FAMILY, HConstants.STARTCODE_QUALIFIER);
    Result r = meta.get(get);
    byte[] value = r.getValue(HConstants.CATALOG_FAMILY, HConstants.SERVER_QUALIFIER);
    byte[] startcodeBytes = r.getValue(HConstants.CATALOG_FAMILY, HConstants.STARTCODE_QUALIFIER);
    if (value == null || startcodeBytes == null) {

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    // get assignment info and hregioninfo from meta.
    Get get = new Get(hi.getRegionName());
    get.addColumn(HConstants.CATALOG_FAMILY, HConstants.REGIONINFO_QUALIFIER);
    get.addColumn(HConstants.CATALOG_FAMILY, HConstants.SERVER_QUALIFIER);
    get.addColumn(HConstants.CATALOG_FAMILY, HConstants.STARTCODE_QUALIFIER);
    Result r = meta.get(get);
    byte[] value = r.getValue(HConstants.CATALOG_FAMILY, HConstants.SERVER_QUALIFIER);
    byte[] startcodeBytes = r.getValue(HConstants.CATALOG_FAMILY, HConstants.STARTCODE_QUALIFIER);
    if (value == null || startcodeBytes == null) {
      errors.reportError("Unable to close region "

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