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

org.apache.hadoop.hbase.client.RowMutations
Performs multiple mutations atomically on a single row. Currently {@link Put} and {@link Delete} are supported.The mutations are performed in the order in which they were added.
We compare and equate mutations based off their row so be careful putting RowMutations into Sets or using them as keys in Maps.


  /**
   * Reset the split parent region info in meta table
   */
  private void resetSplitParent(HbckInfo hi) throws IOException {
    RowMutations mutations = new RowMutations(hi.metaEntry.getRegionName());
    Delete d = new Delete(hi.metaEntry.getRegionName());
    d.deleteColumn(HConstants.CATALOG_FAMILY, HConstants.SPLITA_QUALIFIER);
    d.deleteColumn(HConstants.CATALOG_FAMILY, HConstants.SPLITB_QUALIFIER);
    mutations.add(d);


    HRegionInfo hri = new HRegionInfo(hi.metaEntry);
    hri.setOffline(false);
    hri.setSplit(false);
    Put p = MetaEditor.makePutFromRegionInfo(hri);
    mutations.add(p);


    meta.mutateRow(mutations);
    meta.flushCommits();
    LOG.info("Reset split parent " + hi.metaEntry.getRegionNameAsString() + " in META" );
  }

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    MutationProto firstMutate = mutations.get(0);
    if (!region.getRegionInfo().isMetaTable()) {
      cacheFlusher.reclaimMemStoreMemory();
    }
    byte [] row = firstMutate.getRow().toByteArray();
    RowMutations rm = new RowMutations(row);
    for (MutationProto mutate: mutations) {
      MutationType type = mutate.getMutateType();
      switch (mutate.getMutateType()) {
      case PUT:
        rm.add(ProtobufUtil.toPut(mutate, cellScanner));
        break;
      case DELETE:
        rm.add(ProtobufUtil.toDelete(mutate, cellScanner));
        break;
        default:
          throw new DoNotRetryIOException(
            "mutate supports atomic put and/or delete, not "
              + type.name());

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      final CellScanner cellScanner)
  throws IOException {
    if (!region.getRegionInfo().isMetaTable()) {
      cacheFlusher.reclaimMemStoreMemory();
    }
    RowMutations rm = null;
    for (ClientProtos.Action action: actions) {
      if (action.hasGet()) {
        throw new DoNotRetryIOException("Atomic put and/or delete only, not a Get=" +
          action.getGet());
      }
      MutationType type = action.getMutation().getMutateType();
      if (rm == null) {
        rm = new RowMutations(action.getMutation().getRow().toByteArray());
      }
      switch (type) {
      case PUT:
        rm.add(ProtobufUtil.toPut(action.getMutation(), cellScanner));
        break;
      case DELETE:
        rm.add(ProtobufUtil.toDelete(action.getMutation(), cellScanner));
        break;
      default:
          throw new DoNotRetryIOException("Atomic put and/or delete only, not " + type.name());
      }
    }

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    MutationProto firstMutate = mutations.get(0);
    if (!region.getRegionInfo().isMetaTable()) {
      cacheFlusher.reclaimMemStoreMemory();
    }
    byte [] row = firstMutate.getRow().toByteArray();
    RowMutations rm = new RowMutations(row);
    for (MutationProto mutate: mutations) {
      MutationType type = mutate.getMutateType();
      switch (mutate.getMutateType()) {
      case PUT:
        rm.add(ProtobufUtil.toPut(mutate, cellScanner));
        break;
      case DELETE:
        rm.add(ProtobufUtil.toDelete(mutate, cellScanner));
        break;
        default:
          throw new DoNotRetryIOException(
            "mutate supports atomic put and/or delete, not "
              + type.name());

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  /**
   * Reset the split parent region info in meta table
   */
  private void resetSplitParent(HbckInfo hi) throws IOException {
    RowMutations mutations = new RowMutations(hi.metaEntry.getRegionName());
    Delete d = new Delete(hi.metaEntry.getRegionName());
    d.deleteColumn(HConstants.CATALOG_FAMILY, HConstants.SPLITA_QUALIFIER);
    d.deleteColumn(HConstants.CATALOG_FAMILY, HConstants.SPLITB_QUALIFIER);
    mutations.add(d);


    HRegionInfo hri = new HRegionInfo(hi.metaEntry);
    hri.setOffline(false);
    hri.setSplit(false);
    Put p = MetaEditor.makePutFromRegionInfo(hri);
    mutations.add(p);


    meta.mutateRow(mutations);
    meta.flushCommits();
    LOG.info("Reset split parent " + hi.metaEntry.getRegionNameAsString() + " in META" );
  }

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   * @param in the <code>TRowMutations</code> to convert
   *
   * @return converted <code>RowMutations</code>
   */
  public static RowMutations rowMutationsFromThrift(TRowMutations in) throws IOException {
    RowMutations out = new RowMutations(in.getRow());
    List<TMutation> mutations = in.getMutations();
    for (TMutation mutation : mutations) {
      if (mutation.isSetPut()) {
        out.add(putFromThrift(mutation.getPut()));
      }
      if (mutation.isSetDeleteSingle()) {
        out.add(deleteFromThrift(mutation.getDeleteSingle()));
      }
    }
    return out;
  }

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      Put p2 = new Put(row1);
      p2.add(fam, qual2, value);
      p2.setCellVisibility(new CellVisibility(SECRET));


      RowMutations rm = new RowMutations(row1);
      rm.add(p1);
      rm.add(p2);


      table.mutateRow(rm);


      Get get = new Get(row1);
      get.setAuthorizations(new Authorizations(CONFIDENTIAL));

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      final CellScanner cellScanner)
  throws IOException {
    if (!region.getRegionInfo().isMetaTable()) {
      cacheFlusher.reclaimMemStoreMemory();
    }
    RowMutations rm = null;
    for (ClientProtos.Action action: actions) {
      if (action.hasGet()) {
        throw new DoNotRetryIOException("Atomic put and/or delete only, not a Get=" +
          action.getGet());
      }
      MutationType type = action.getMutation().getMutateType();
      if (rm == null) {
        rm = new RowMutations(action.getMutation().getRow().toByteArray());
      }
      switch (type) {
      case PUT:
        rm.add(ProtobufUtil.toPut(action.getMutation(), cellScanner));
        break;
      case DELETE:
        rm.add(ProtobufUtil.toDelete(action.getMutation(), cellScanner));
        break;
      default:
          throw new DoNotRetryIOException("Atomic put and/or delete only, not " + type.name());
      }
    }

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    KeyValue kv = KeyValueUtil.ensureKeyValue(CELL);
    Put p = new Put(kv.getRow());
    for (int i = 0; i < cellcount; i++) {
      p.add(kv);
    }
    RowMutations rm = new RowMutations(kv.getRow());
    rm.add(p);
    try {
      rpcServer.start();
      InetSocketAddress address = rpcServer.getListenerAddress();
      // Get any method name... just so it is not null
      Method m = NothingProtocol.class.getMethod("doNothing");

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  @Override
  public void mutateRow(RowMutations rm) throws IOException {
    if (tx == null) {
      throw new IOException("Transaction not started");
    }
    RowMutations transactionalMutations = new RowMutations();
    for (Mutation mutation : rm.getMutations()) {
      if (mutation instanceof Put) {
        transactionalMutations.add(transactionalizeAction((Put) mutation));
      } else if (mutation instanceof Delete) {
        transactionalMutations.add(transactionalizeAction((Delete) mutation));
      }
    }
    hTable.mutateRow(transactionalMutations);
  }

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