Esempio n. 1
0
 @Override
 public List<Mutation>
     toRowMutations() { // TODO: change to List<Mutation> once it implements Row
   List<Mutation> mutations = new ArrayList<Mutation>(3);
   if (deleteRow != null) {
     // Include only deleteRow mutation if present because it takes precedence over all others
     mutations.add(deleteRow);
   } else {
     // Because we cannot enforce a not null constraint on a KV column (since we don't know if
     // the row exists when
     // we upsert it), se instead add a KV that is always emtpy. This allows us to imitate SQL
     // semantics given the
     // way HBase works.
     setValues.add(
         SchemaUtil.getEmptyColumnFamily(getColumnFamilies()),
         QueryConstants.EMPTY_COLUMN_BYTES,
         ts,
         ByteUtil.EMPTY_BYTE_ARRAY);
     mutations.add(setValues);
     if (!unsetValues.isEmpty()) {
       mutations.add(unsetValues);
     }
   }
   return mutations;
 }