Package org.apache.tajo.datum

Examples of org.apache.tajo.datum.Datum.type()

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  @Override
  public void eval(EvalContext ctx, Schema schema, Tuple tuple) {
    IsNullEvalCtx isNullCtx = (IsNullEvalCtx) ctx;
    leftExpr.eval(isNullCtx.predicandContext, schema, tuple);
    Datum result = leftExpr.terminate(((IsNullEvalCtx)ctx).predicandContext);
    ((IsNullEvalCtx) ctx).result = DatumFactory.createBool(isNot ^ (result.type() == TajoDataTypes.Type.NULL));
  }

  @Override
  public Datum terminate(EvalContext ctx) {
    return ((IsNullEvalCtx)ctx).result;
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      return lhs.divide(rhs);
    case MODULAR:
      return lhs.modular(rhs);

    case CONCATENATE:
      if (lhs.type() == Type.NULL_TYPE || rhs.type() == Type.NULL_TYPE) {
        return NullDatum.get();
      }
      return DatumFactory.createText(lhs.asChars() + rhs.asChars());
    default:
      throw new InvalidEvalException("We does not support " + type + " expression yet");
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