@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; }
@Override public void setValue(PColumn column, byte[] byteValue) { deleteRow = null; byte[] family = column.getFamilyName().getBytes(); byte[] qualifier = column.getName().getBytes(); PDataType type = column.getDataType(); // Check null, since some types have no byte representation for null if (byteValue == null || byteValue.length == 0) { if (!column.isNullable()) { throw new ConstraintViolationException( name.getString() + "." + column.getName().getString() + " may not be null"); } removeIfPresent(setValues, family, qualifier); unsetValues.deleteColumns(family, qualifier, ts); } else { Integer byteSize = column.getByteSize(); if (type.isFixedWidth()) { // TODO: handle multi-byte characters if (byteValue.length != byteSize) { throw new ConstraintViolationException( name.getString() + "." + column.getName().getString() + " must be " + byteSize + " bytes (" + type.toObject(byteValue) + ")"); } } else if (byteSize != null && byteValue.length > byteSize) { throw new ConstraintViolationException( name.getString() + "." + column.getName().getString() + " may not exceed " + byteSize + " bytes (" + type.toObject(byteValue) + ")"); } removeIfPresent(unsetValues, family, qualifier); setValues.add(family, qualifier, ts, byteValue); } }