Package org.apache.drill.exec.expr.fn

Examples of org.apache.drill.exec.expr.fn.AbstractFuncHolder

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    @Override
    public HoldingContainer visitFunctionHolderExpression(FunctionHolderExpression holderExpr,
        ClassGenerator<?> generator) throws RuntimeException {

      AbstractFuncHolder holder = (AbstractFuncHolder) holderExpr.getHolder();

      JVar[] workspaceVars = holder.renderStart(generator, null);

      if (holder.isNested())
        generator.getMappingSet().enterChild();

      HoldingContainer[] args = new HoldingContainer[holderExpr.args.size()];
      for (int i = 0; i < holderExpr.args.size(); i++) {
        args[i] = holderExpr.args.get(i).accept(this, generator);
      }

      holder.renderMiddle(generator, args, workspaceVars);

      if (holder.isNested())
        generator.getMappingSet().exitChild();

      return holder.renderEnd(generator, args, workspaceVars);
    }
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        return matchedFuncHolder.getExpr(call.getName(), argsWithCast, call.getPosition());
      }

      // as no drill func is found, search for a non-Drill function.
      AbstractFuncHolder matchedNonDrillFuncHolder = registry.findNonDrillFunction(call);
      if (matchedNonDrillFuncHolder != null) {
        // Insert implicit cast function holder expressions if required
        List<LogicalExpression> extArgsWithCast = Lists.newArrayList();

        for (int i = 0; i < call.args.size(); ++i) {
          LogicalExpression currentArg = call.args.get(i);
          TypeProtos.MajorType parmType = matchedNonDrillFuncHolder.getParmMajorType(i);

          if (Types.softEquals(parmType, currentArg.getMajorType(), true)) {
            extArgsWithCast.add(currentArg);
          } else {
            // Insert cast if param type is different from arg type.
            extArgsWithCast.add(addCastExpression(call.args.get(i), parmType, registry));
          }
        }

        return matchedNonDrillFuncHolder.getExpr(call.getName(), extArgsWithCast, call.getPosition());
      }

      logFunctionResolutionError(errorCollector, call);
      return NullExpression.INSTANCE;
    }
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        return matchedFuncHolder.getExpr(call.getName(), argsWithCast, call.getPosition());
      }

      // as no drill func is found, search for a non-Drill function.
      AbstractFuncHolder matchedNonDrillFuncHolder = registry.findNonDrillFunction(call);
      if (matchedNonDrillFuncHolder != null) {
        // Insert implicit cast function holder expressions if required
        List<LogicalExpression> extArgsWithCast = Lists.newArrayList();

        for (int i = 0; i < call.args.size(); ++i) {
          LogicalExpression currentArg = call.args.get(i);
          TypeProtos.MajorType parmType = matchedNonDrillFuncHolder.getParmMajorType(i);

          if (Types.softEquals(parmType, currentArg.getMajorType(), true)) {
            extArgsWithCast.add(currentArg);
          } else {
            // Insert cast if param type is different from arg type.
            extArgsWithCast.add(addCastExpression(call.args.get(i), parmType, registry));
          }
        }

        return matchedNonDrillFuncHolder.getExpr(call.getName(), extArgsWithCast, call.getPosition());
      }

      logFunctionResolutionError(errorCollector, call);
      return NullExpression.INSTANCE;
    }
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    @Override
    public HoldingContainer visitFunctionHolderExpression(FunctionHolderExpression holderExpr,
        ClassGenerator<?> generator) throws RuntimeException {

      AbstractFuncHolder holder = (AbstractFuncHolder) holderExpr.getHolder();

      JVar[] workspaceVars = holder.renderStart(generator, null);

      if (holder.isNested()) {
        generator.getMappingSet().enterChild();
      }

      HoldingContainer[] args = new HoldingContainer[holderExpr.args.size()];
      for (int i = 0; i < holderExpr.args.size(); i++) {
        args[i] = holderExpr.args.get(i).accept(this, generator);
      }

      holder.renderMiddle(generator, args, workspaceVars);

      if (holder.isNested()) {
        generator.getMappingSet().exitChild();
      }

      return holder.renderEnd(generator, args, workspaceVars);
    }
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    @Override
    public HoldingContainer visitFunctionHolderExpression(FunctionHolderExpression holderExpr,
        ClassGenerator<?> generator) throws RuntimeException {

      AbstractFuncHolder holder = (AbstractFuncHolder) holderExpr.getHolder();

      JVar[] workspaceVars = holder.renderStart(generator, null);

      if (holder.isNested())
        generator.getMappingSet().enterChild();

      HoldingContainer[] args = new HoldingContainer[holderExpr.args.size()];
      for (int i = 0; i < holderExpr.args.size(); i++) {
        args[i] = holderExpr.args.get(i).accept(this, generator);
      }

      holder.renderMiddle(generator, args, workspaceVars);

      if (holder.isNested())
        generator.getMappingSet().exitChild();

      return holder.renderEnd(generator, args, workspaceVars);
    }
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Related Classes of org.apache.drill.exec.expr.fn.AbstractFuncHolder

  • org.apache.drill.exec.expr.EvaluationVisitor$EvalVisitor
  • org.apache.drill.exec.expr.ExpressionTreeMaterializer$MaterializeVisitor
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