Package org.apache.drill.exec.expr.holders

Examples of org.apache.drill.exec.expr.holders.ValueHolder

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    InterEvalVisitor evalVisitor = new InterEvalVisitor(incoming);

    expr.accept(initVisitor, incoming);

    for (int i = 0; i < incoming.getRecordCount(); i++) {
      ValueHolder out = expr.accept(evalVisitor, i);
      TypeHelper.setValueSafe(outVV, i, out);
    }

    outVV.getMutator().setValueCount(incoming.getRecordCount());
  }
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        DrillSimpleFuncInterpreter interpreter =  ((DrillFuncHolderExpr) holderExpr).getInterpreter();

        Preconditions.checkArgument(interpreter != null, "interpreter could not be null when use interpreted model to evaluate function " + holder.getRegisteredNames()[0]);

        interpreter.doSetup(args, incoming);
        ValueHolder out = interpreter.doEval(args);

        if (TypeHelper.getValueHolderType(out).getMode() == TypeProtos.DataMode.OPTIONAL &&
            holderExpr.getMajorType().getMode() == TypeProtos.DataMode.REQUIRED) {
          return TypeHelper.deNullify(out);
        } else if (TypeHelper.getValueHolderType(out).getMode() == TypeProtos.DataMode.REQUIRED &&
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      }
    }

    @Override
    public ValueHolder visitIfExpression(IfExpression ifExpr, Integer inIndex) throws RuntimeException {
      ValueHolder condHolder = ifExpr.ifCondition.condition.accept(this, inIndex);

      assert (condHolder instanceof BitHolder || condHolder instanceof NullableBitHolder);

      Trivalent flag = isBitOn(condHolder);
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    protected ValueHolder visitValueVectorReadExpression(ValueVectorReadExpression e, Integer inIndex)
        throws RuntimeException {
      TypeProtos.MajorType type = e.getMajorType();

      ValueVector vv;
      ValueHolder holder;
      try {
        switch (type.getMode()) {
          case OPTIONAL:
          case REQUIRED:
            vv = incoming.getValueAccessorById(TypeHelper.getValueVectorClass(type.getMinorType(),type.getMode()), e.getFieldId().getFieldIds()).getValueVector();
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    //          2) if none argument is false, but at least one is null, return null.
    //          3) finally, return true (finalValue).
    private ValueHolder visitBooleanAnd(BooleanOperator op, Integer inIndex) {
      ValueHolder [] args = new ValueHolder [op.args.size()];
      boolean hasNull = false;
      ValueHolder out = null;
      for (int i = 0; i < op.args.size(); i++) {
        args[i] = op.args.get(i).accept(this, inIndex);

        Trivalent flag = isBitOn(args[i]);
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    //    null    false    null
    //    null    null     null
    private ValueHolder visitBooleanOr(BooleanOperator op, Integer inIndex) {
      ValueHolder [] args = new ValueHolder [op.args.size()];
      boolean hasNull = false;
      ValueHolder out = null;
      for (int i = 0; i < op.args.size(); i++) {
        args[i] = op.args.get(i).accept(this, inIndex);

        Trivalent flag = isBitOn(args[i]);
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Related Classes of org.apache.drill.exec.expr.holders.ValueHolder

  • org.apache.drill.exec.expr.fn.interpreter.InterpreterEvaluator
  • org.apache.drill.exec.expr.fn.interpreter.InterpreterEvaluator$InterEvalVisitor
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