Package org.apache.drill.exec.expr.ClassGenerator

Examples of org.apache.drill.exec.expr.ClassGenerator.HoldingContainer

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      final LogicalExpression expr = ExpressionTreeMaterializer.materialize(od.getExpr(), batch, collector,context.getFunctionRegistry());
      if (collector.hasErrors()) {
        throw new SchemaChangeException("Failure while materializing expression. " + collector.toErrorString());
      }
      g.setMappingSet(leftMapping);
      HoldingContainer left = g.addExpr(expr, false);
      g.setMappingSet(rightMapping);
      HoldingContainer right = g.addExpr(expr, false);
      g.setMappingSet(mainMapping);

      // next we wrap the two comparison sides and add the expression block for the comparison.
      LogicalExpression fh = FunctionGenerationHelper.getComparator(left, right, context.getFunctionRegistry());
      HoldingContainer out = g.addExpr(fh, false);
      JConditional jc = g.getEvalBlock()._if(out.getValue().ne(JExpr.lit(0)));

      if (od.getDirection() == Direction.ASCENDING) {
        jc._then()._return(out.getValue());
      }else{
        jc._then()._return(out.getValue().minus());
      }
    }

    g.getEvalBlock()._return(JExpr.lit(0));
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      final LogicalExpression expr = ExpressionTreeMaterializer.materialize(od.getExpr(), batch, collector, context.getFunctionRegistry());
      if (collector.hasErrors()) {
        throw new SchemaChangeException("Failure while materializing expression. " + collector.toErrorString());
      }
      g.setMappingSet(leftMapping);
      HoldingContainer left = g.addExpr(expr, false);
      g.setMappingSet(rightMapping);
      HoldingContainer right = g.addExpr(expr, false);
      g.setMappingSet(mainMapping);

      // next we wrap the two comparison sides and add the expression block for the comparison.
      LogicalExpression fh = FunctionGenerationHelper.getComparator(left, right, context.getFunctionRegistry());
      HoldingContainer out = g.addExpr(fh, false);
      JConditional jc = g.getEvalBlock()._if(out.getValue().ne(JExpr.lit(0)));

      if (od.getDirection() == Direction.ASCENDING) {
        jc._then()._return(out.getValue());
      } else {
        jc._then()._return(out.getValue().minus());
      }
      g.rotateBlock();
    }

    g.rotateBlock();
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      // check value equality

      LogicalExpression gh = FunctionGenerationHelper.getComparator(compareThisLeftExprHolder,
        compareNextLeftExprHolder,
        context.getFunctionRegistry());
      HoldingContainer out = cg.addExpr(gh, false);

      //If not 0, it means not equal. We return this out value.
      JConditional jc = cg.getEvalBlock()._if(out.getValue().ne(JExpr.lit(0)));
      jc._then()._return(out.getValue());
    }

    //Pass the equality check for all the join conditions. Finally, return 0.
    cg.getEvalBlock()._return(JExpr.lit(0));
  }
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        ClassGenerator.HoldingContainer compareRightExprHolder = cg.addExpr(materializedRightExpr, false);

        LogicalExpression fh = FunctionGenerationHelper.getComparator(compareLeftExprHolder,
          compareRightExprHolder,
          context.getFunctionRegistry());
        HoldingContainer out = cg.addExpr(fh, false);

        // If not 0, it means not equal. We return this out value.
        // Null compares to Null should returns null (unknown). In such case, we return 1 to indicate they are not equal.
        if (compareLeftExprHolder.isOptional() && compareRightExprHolder.isOptional()) {
          JConditional jc = cg.getEvalBlock()._if(compareLeftExprHolder.getIsSet().eq(JExpr.lit(0)).
                                      cand(compareRightExprHolder.getIsSet().eq(JExpr.lit(0))));
          jc._then()._return(JExpr.lit(1));
          jc._elseif(out.getValue().ne(JExpr.lit(0)))._then()._return(out.getValue());
        } else {
          cg.getEvalBlock()._if(out.getValue().ne(JExpr.lit(0)))._then()._return(out.getValue());
        }
      }
    }

    //Pass the equality check for all the join conditions. Finally, return 0.
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      ValueVector vector = TypeHelper.getNewVector(outputField, oContext.getAllocator());
      localAllocationVectors.add(vector);
      TypedFieldId fid = outgoing.add(vector);
      ValueVectorWriteExpression write = new ValueVectorWriteExpression(fid, expr, true);
      HoldingContainer hc = cg.addExpr(write);
      cg.getEvalBlock()._if(hc.getValue().eq(JExpr.lit(0)))._then()._return(JExpr.FALSE);
    }
    cg.rotateBlock();
    cg.getEvalBlock()._return(JExpr.TRUE);
    outgoing.buildSchema(BatchSchema.SelectionVectorMode.NONE);
    try {
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  private void setupUpdateAggrValues(ClassGenerator<HashAggregator> cg) {
    cg.setMappingSet(UpdateAggrValuesMapping);

    for (LogicalExpression aggr : aggrExprs) {
      HoldingContainer hc = cg.addExpr(aggr);
      cg.getBlock(BlockType.EVAL)._if(hc.getValue().eq(JExpr.lit(0)))._then()._return(JExpr.FALSE);
    }

    cg.getBlock(BlockType.EVAL)._return(JExpr.TRUE);
  }
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      final LogicalExpression expr = ExpressionTreeMaterializer.materialize(od.getExpr(), batch, collector, context.getFunctionRegistry());
      if (collector.hasErrors()) {
        throw new SchemaChangeException("Failure while materializing expression. " + collector.toErrorString());
      }
      g.setMappingSet(leftMapping);
      HoldingContainer left = g.addExpr(expr, false);
      g.setMappingSet(rightMapping);
      HoldingContainer right = g.addExpr(expr, false);
      g.setMappingSet(mainMapping);

      // next we wrap the two comparison sides and add the expression block for the comparison.
      LogicalExpression fh = FunctionGenerationHelper.getComparator(left, right, context.getFunctionRegistry());
      HoldingContainer out = g.addExpr(fh, false);
      JConditional jc = g.getEvalBlock()._if(out.getValue().ne(JExpr.lit(0)));

      if (od.getDirection() == Direction.ASCENDING) {
        jc._then()._return(out.getValue());
      }else{
        jc._then()._return(out.getValue().minus());
      }
      g.rotateBlock();
    }

    g.rotateBlock();
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      final LogicalExpression expr = ExpressionTreeMaterializer.materialize(od.getExpr(), batch, collector,context.getFunctionRegistry());
      if (collector.hasErrors()) {
        throw new SchemaChangeException("Failure while materializing expression. " + collector.toErrorString());
      }
      g.setMappingSet(LEFT_MAPPING);
      HoldingContainer left = g.addExpr(expr, false);
      g.setMappingSet(RIGHT_MAPPING);
      HoldingContainer right = g.addExpr(expr, false);
      g.setMappingSet(MAIN_MAPPING);

      // next we wrap the two comparison sides and add the expression block for the comparison.
      LogicalExpression fh = FunctionGenerationHelper.getComparator(left, right, context.getFunctionRegistry());
      HoldingContainer out = g.addExpr(fh, false);
      JConditional jc = g.getEvalBlock()._if(out.getValue().ne(JExpr.lit(0)));

      if (od.getDirection() == Direction.ASCENDING) {
        jc._then()._return(out.getValue());
      }else{
        jc._then()._return(out.getValue().minus());
      }
      g.rotateBlock();
    }

    g.rotateBlock();
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    }

    int i = 0;
    for (LogicalExpression expr : keyExprs) {
      cg.setMappingSet(incomingMapping);
      HoldingContainer left = cg.addExpr(expr, false);

      cg.setMappingSet(htableMapping);
      ValueVectorReadExpression vvrExpr = new ValueVectorReadExpression(htKeyFieldIds[i++]);
      HoldingContainer right = cg.addExpr(vvrExpr, false);

      // next we wrap the two comparison sides and add the expression block for the comparison.
      LogicalExpression f = FunctionGenerationHelper.getComparator(left, right, context.getFunctionRegistry());
      HoldingContainer out = cg.addExpr(f, false);

      // check if two values are not equal (comparator result != 0)
      JConditional jc = cg.getEvalBlock()._if(out.getValue().ne(JExpr.lit(0)));

      jc._then()._return(JExpr.FALSE);
    }

    // All key expressions compared equal, so return TRUE
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    int i = 0;
    for (LogicalExpression expr : keyExprs) {
      ValueVectorWriteExpression vvwExpr = new ValueVectorWriteExpression(htKeyFieldIds[i++], expr, true) ;

      HoldingContainer hc = cg.addExpr(vvwExpr, false); // this will write to the htContainer at htRowIdx
      cg.getEvalBlock()._if(hc.getValue().eq(JExpr.lit(0)))._then()._return(JExpr.FALSE);
    }

    cg.getEvalBlock()._return(JExpr.TRUE);

  }
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Related Classes of org.apache.drill.exec.expr.ClassGenerator.HoldingContainer

  • org.apache.drill.exec.expr.EvaluationVisitor$ConstantFilter
  • org.apache.drill.exec.expr.EvaluationVisitor$EvalVisitor
  • org.apache.drill.exec.expr.fn.DrillAggFuncHolder
  • org.apache.drill.exec.expr.fn.DrillFuncHolder
  • org.apache.drill.exec.expr.fn.DrillSimpleFuncHolder
  • org.apache.drill.exec.expr.fn.HiveFuncHolder
  • org.apache.drill.exec.physical.impl.aggregate.HashAggBatch
  • org.apache.drill.exec.physical.impl.aggregate.StreamingAggBatch
  • org.apache.drill.exec.physical.impl.common.ChainedHashTable
  • org.apache.drill.exec.physical.impl.flatten.FlattenRecordBatch
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