Examples of org.apache.hadoop.hbase.KeyValue$KeyComparator

org.apache.hadoop.hbase.KeyValue
Compare key portion of a {@link KeyValue}.

      List<KeyValue> kvs = new ArrayList<KeyValue>();
      for (CellModel cell: row.getCells()) {
        byte[][] split = KeyValue.parseColumn(cell.getColumn());
        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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  }


  public boolean checkAndPut(byte[] row, byte[] family, byte[] qualifier,
      byte[] value, Put put) throws IOException {
    // column to check-the-value
    put.add(new KeyValue(row, family, qualifier, value));


    CellSetModel model = buildModelFromPut(put);
    StringBuilder sb = new StringBuilder();
    sb.append('/');
    if (accessToken != null) {

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  public boolean checkAndDelete(byte[] row, byte[] family, byte[] qualifier,
      byte[] value, Delete delete) throws IOException {
    Put put = new Put(row);
    // column to check-the-value
    put.add(new KeyValue(row, family, qualifier, value));
    CellSetModel model = buildModelFromPut(put);
    StringBuilder sb = new StringBuilder();
    sb.append('/');
    if (accessToken != null) {
      sb.append(accessToken);

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      this.cacheFlushLock.unlock();
    }
  }


  private WALEdit completeCacheFlushLogEdit() {
    KeyValue kv = new KeyValue(METAROW, METAFAMILY, null,
      System.currentTimeMillis(), COMPLETE_CACHE_FLUSH);
    WALEdit e = new WALEdit();
    e.add(kv);
    return e;
  }

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    byte[] row = r.getRegionName();
    Integer lid = meta.obtainRowLock(row);
    try {
      final long now = EnvironmentEdgeManager.currentTimeMillis();
      final List<KeyValue> edits = new ArrayList<KeyValue>(2);
      edits.add(new KeyValue(row, HConstants.CATALOG_FAMILY,
        HConstants.REGIONINFO_QUALIFIER, now,
        Writables.getBytes(r.getRegionInfo())));
      // Set into the root table the version of the meta table.
      edits.add(new KeyValue(row, HConstants.CATALOG_FAMILY,
        HConstants.META_VERSION_QUALIFIER, now,
        Bytes.toBytes(HConstants.META_VERSION)));
      meta.put(HConstants.CATALOG_FAMILY, edits);
    } finally {
      meta.releaseRowLock(lid);

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          // Avoid as much copying as possible. Every byte is copied at most
          // once.
          // Would be nice if KeyValue had scatter/gather logic
          int idx = 0;
          for (KeyValue kv : family.getValue()) {
            KeyValue newKV;
            if (idx < results.size()
                && results.get(idx).matchingQualifier(kv.getBuffer(),
                    kv.getQualifierOffset(), kv.getQualifierLength())) {
              KeyValue oldKv = results.get(idx);
              // allocate an empty kv once
              newKV = new KeyValue(row.length, kv.getFamilyLength(),
                  kv.getQualifierLength(), now, KeyValue.Type.Put,
                  oldKv.getValueLength() + kv.getValueLength());
              // copy in the value
              System.arraycopy(oldKv.getBuffer(), oldKv.getValueOffset(),
                  newKV.getBuffer(), newKV.getValueOffset(),
                  oldKv.getValueLength());
              System.arraycopy(kv.getBuffer(), kv.getValueOffset(),
                  newKV.getBuffer(),
                  newKV.getValueOffset() + oldKv.getValueLength(),
                  kv.getValueLength());
              idx++;
            } else {
              // allocate an empty kv once
              newKV = new KeyValue(row.length, kv.getFamilyLength(),
                  kv.getQualifierLength(), now, KeyValue.Type.Put,
                  kv.getValueLength());
              // copy in the value
              System.arraycopy(kv.getBuffer(), kv.getValueOffset(),
                  newKV.getBuffer(), newKV.getValueOffset(),

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          int idx = 0;
          for (Map.Entry<byte [], Long> column : family.getValue().entrySet()) {
            long amount = column.getValue();
            if (idx < results.size() &&
                results.get(idx).matchingQualifier(column.getKey())) {
              KeyValue kv = results.get(idx);
              amount += Bytes.toLong(kv.getBuffer(), kv.getValueOffset());
              idx++;
            }


            // Append new incremented KeyValue to list
            KeyValue newKV = new KeyValue(row, family.getKey(), column.getKey(),
                now, Bytes.toBytes(amount));
            kvs.add(newKV);


            // Append update to WAL
            if (writeToWAL) {

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        // we don't want to invoke coprocessor in this case; ICV is wrapped
        // in HRegionServer, so we leave getLastIncrement alone
        List<KeyValue> results = get(get, false);


        if (!results.isEmpty()) {
          KeyValue kv = results.get(0);
          if(kv.getValueLength() == 8){
            byte [] buffer = kv.getBuffer();
            int valueOffset = kv.getValueOffset();
            result += Bytes.toLong(buffer, valueOffset, Bytes.SIZEOF_LONG);
          }
          else{
            wrongLength = true;
          }
        }
        if(!wrongLength){
          // build the KeyValue now:
          KeyValue newKv = new KeyValue(row, family,
            qualifier, EnvironmentEdgeManager.currentTimeMillis(),
            Bytes.toBytes(result));


          // now log it:
          if (writeToWAL) {

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    return operator == Operator.MUST_PASS_ONE;
  }


  @Override
  public KeyValue transform(KeyValue v) {
    KeyValue current = v;
    for (Filter filter : filters) {
      current = filter.transform(current);
    }
    return current;
  }

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    }
  }


  @Override
  public KeyValue getNextKeyHint(KeyValue currentKV) {
    KeyValue keyHint = null;
    for (Filter filter : filters) {
      KeyValue curKeyHint = filter.getNextKeyHint(currentKV);
      if (curKeyHint == null && operator == Operator.MUST_PASS_ONE) {
        // If we ever don't have a hint and this is must-pass-one, then no hint
        return null;
      }
      if (curKeyHint != null) {

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