Examples of org.apache.hadoop.hbase.client.HTable$ClientScanner

org.apache.hadoop.hbase.client.HTable
Implements the scanner interface for the HBase client. If there are multiple regions in a table, this scanner will iterate through them all.

          deletes.add(delete);
        if (!put.isEmpty())
          puts.add(put);
      }


      HTable table = null;
      try {
        table = getTable(tableName);
        if (!puts.isEmpty())
          table.put(puts);
        if (!deletes.isEmpty()) table.delete(deletes);
      } catch (IOException e) {
        LOG.warn(e.getMessage(), e);
        throw new IOError(e.getMessage());
      } catch (IllegalArgumentException e) {
        LOG.warn(e.getMessage(), e);

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    }


    protected long atomicIncrement(ByteBuffer tableName, ByteBuffer row,
        byte [] family, byte [] qualifier, long amount)
        throws IOError, IllegalArgument, TException {
      HTable table;
      try {
        table = getTable(tableName);
        return table.incrementColumnValue(
            getBytes(row), family, qualifier, amount);
      } catch (IOException e) {
        LOG.warn(e.getMessage(), e);
        throw new IOError(e.getMessage());
      }

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    public int scannerOpenWithScan(ByteBuffer tableName, TScan tScan,
        Map<ByteBuffer, ByteBuffer> attributes)
        throws IOError {
      try {
        HTable table = getTable(tableName);
        Scan scan = new Scan();
        addAttributes(scan, attributes);
        if (tScan.isSetStartRow()) {
          scan.setStartRow(tScan.getStartRow());
        }
        if (tScan.isSetStopRow()) {
          scan.setStopRow(tScan.getStopRow());
        }
        if (tScan.isSetTimestamp()) {
          scan.setTimeRange(Long.MIN_VALUE, tScan.getTimestamp());
        }
        if (tScan.isSetCaching()) {
          scan.setCaching(tScan.getCaching());
        }
        if (tScan.isSetColumns() && tScan.getColumns().size() != 0) {
          for(ByteBuffer column : tScan.getColumns()) {
            byte [][] famQf = KeyValue.parseColumn(getBytes(column));
            if(famQf.length == 1) {
              scan.addFamily(famQf[0]);
            } else {
              scan.addColumn(famQf[0], famQf[1]);
            }
          }
        }
        if (tScan.isSetFilterString()) {
          ParseFilter parseFilter = new ParseFilter();
          scan.setFilter(
              parseFilter.parseFilterString(tScan.getFilterString()));
        }
        return addScanner(table.getScanner(scan));
      } catch (IOException e) {
        LOG.warn(e.getMessage(), e);
        throw new IOError(e.getMessage());
      }
    }

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    @Override
    public int scannerOpen(ByteBuffer tableName, ByteBuffer startRow,
        List<ByteBuffer> columns,
        Map<ByteBuffer, ByteBuffer> attributes) throws IOError {
      try {
        HTable table = getTable(tableName);
        Scan scan = new Scan(getBytes(startRow));
        addAttributes(scan, attributes);
        if(columns != null && columns.size() != 0) {
          for(ByteBuffer column : columns) {
            byte [][] famQf = KeyValue.parseColumn(getBytes(column));
            if(famQf.length == 1) {
              scan.addFamily(famQf[0]);
            } else {
              scan.addColumn(famQf[0], famQf[1]);
            }
          }
        }
        return addScanner(table.getScanner(scan));
      } catch (IOException e) {
        LOG.warn(e.getMessage(), e);
        throw new IOError(e.getMessage());
      }
    }

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    public int scannerOpenWithStop(ByteBuffer tableName, ByteBuffer startRow,
        ByteBuffer stopRow, List<ByteBuffer> columns,
        Map<ByteBuffer, ByteBuffer> attributes)
        throws IOError, TException {
      try {
        HTable table = getTable(tableName);
        Scan scan = new Scan(getBytes(startRow), getBytes(stopRow));
        addAttributes(scan, attributes);
        if(columns != null && columns.size() != 0) {
          for(ByteBuffer column : columns) {
            byte [][] famQf = KeyValue.parseColumn(getBytes(column));
            if(famQf.length == 1) {
              scan.addFamily(famQf[0]);
            } else {
              scan.addColumn(famQf[0], famQf[1]);
            }
          }
        }
        return addScanner(table.getScanner(scan));
      } catch (IOException e) {
        LOG.warn(e.getMessage(), e);
        throw new IOError(e.getMessage());
      }
    }

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                                     ByteBuffer startAndPrefix,
                                     List<ByteBuffer> columns,
        Map<ByteBuffer, ByteBuffer> attributes)
        throws IOError, TException {
      try {
        HTable table = getTable(tableName);
        Scan scan = new Scan(getBytes(startAndPrefix));
        addAttributes(scan, attributes);
        Filter f = new WhileMatchFilter(
            new PrefixFilter(getBytes(startAndPrefix)));
        scan.setFilter(f);
        if (columns != null && columns.size() != 0) {
          for(ByteBuffer column : columns) {
            byte [][] famQf = KeyValue.parseColumn(getBytes(column));
            if(famQf.length == 1) {
              scan.addFamily(famQf[0]);
            } else {
              scan.addColumn(famQf[0], famQf[1]);
            }
          }
        }
        return addScanner(table.getScanner(scan));
      } catch (IOException e) {
        LOG.warn(e.getMessage(), e);
        throw new IOError(e.getMessage());
      }
    }

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    @Override
    public int scannerOpenTs(ByteBuffer tableName, ByteBuffer startRow,
        List<ByteBuffer> columns, long timestamp,
        Map<ByteBuffer, ByteBuffer> attributes) throws IOError, TException {
      try {
        HTable table = getTable(tableName);
        Scan scan = new Scan(getBytes(startRow));
        addAttributes(scan, attributes);
        scan.setTimeRange(Long.MIN_VALUE, timestamp);
        if (columns != null && columns.size() != 0) {
          for (ByteBuffer column : columns) {
            byte [][] famQf = KeyValue.parseColumn(getBytes(column));
            if(famQf.length == 1) {
              scan.addFamily(famQf[0]);
            } else {
              scan.addColumn(famQf[0], famQf[1]);
            }
          }
        }
        return addScanner(table.getScanner(scan));
      } catch (IOException e) {
        LOG.warn(e.getMessage(), e);
        throw new IOError(e.getMessage());
      }
    }

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    public int scannerOpenWithStopTs(ByteBuffer tableName, ByteBuffer startRow,
        ByteBuffer stopRow, List<ByteBuffer> columns, long timestamp,
        Map<ByteBuffer, ByteBuffer> attributes)
        throws IOError, TException {
      try {
        HTable table = getTable(tableName);
        Scan scan = new Scan(getBytes(startRow), getBytes(stopRow));
        addAttributes(scan, attributes);
        scan.setTimeRange(Long.MIN_VALUE, timestamp);
        if (columns != null && columns.size() != 0) {
          for (ByteBuffer column : columns) {
            byte [][] famQf = KeyValue.parseColumn(getBytes(column));
            if(famQf.length == 1) {
              scan.addFamily(famQf[0]);
            } else {
              scan.addColumn(famQf[0], famQf[1]);
            }
          }
        }
        scan.setTimeRange(Long.MIN_VALUE, timestamp);
        return addScanner(table.getScanner(scan));
      } catch (IOException e) {
        LOG.warn(e.getMessage(), e);
        throw new IOError(e.getMessage());
      }
    }

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        ByteBuffer tableName) throws IOError, TException {
      try {
        TreeMap<ByteBuffer, ColumnDescriptor> columns =
          new TreeMap<ByteBuffer, ColumnDescriptor>();


        HTable table = getTable(tableName);
        HTableDescriptor desc = table.getTableDescriptor();


        for (HColumnDescriptor e : desc.getFamilies()) {
          ColumnDescriptor col = ThriftUtilities.colDescFromHbase(e);
          columns.put(col.name, col);
        }

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    @Override
    public List<TCell> getRowOrBefore(ByteBuffer tableName, ByteBuffer row,
        ByteBuffer family) throws IOError {
      try {
        HTable table = getTable(getBytes(tableName));
        Result result = table.getRowOrBefore(getBytes(row), getBytes(family));
        return ThriftUtilities.cellFromHBase(result.raw());
      } catch (IOException e) {
        LOG.warn(e.getMessage(), e);
        throw new IOError(e.getMessage());
      }

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