Package org.apache.drill.exec.expr

Class GetSetVectorHelper

java.lang.Object

org.apache.drill.exec.expr.GetSetVectorHelper

public class GetSetVectorHelper
extends Object

Constructor Summary

Constructors

Constructor	Description
GetSetVectorHelper()

Method Summary

Modifier and Type	Method	Description
static void	read(TypeProtos.MajorType type, com.sun.codemodel.JExpression vector, com.sun.codemodel.JBlock eval, ClassGenerator.HoldingContainer out, com.sun.codemodel.JCodeModel model, com.sun.codemodel.JExpression indexVariable)	Generates the code to read a vector into a holder.
static com.sun.codemodel.JInvocation	write(TypeProtos.MajorType type, com.sun.codemodel.JVar vector, ClassGenerator.HoldingContainer in, com.sun.codemodel.JExpression indexVariable, String setMethodName)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

GetSetVectorHelper

public GetSetVectorHelper()

Method Details

read

public static void read(TypeProtos.MajorType type,
 com.sun.codemodel.JExpression vector,
 com.sun.codemodel.JBlock eval,
 ClassGenerator.HoldingContainer out,
 com.sun.codemodel.JCodeModel model,
 com.sun.codemodel.JExpression indexVariable)

Generates the code to read a vector into a holder. Example:

   NullableBigIntHolder out3 = new NullableBigIntHolder();
   {
    out3 .isSet = vv0 [((leftIndex)>>> 16)].getAccessor().isSet(((leftIndex)& 65535));
    if (out3 .isSet == 1) {
      out3 .value = vv0 [((leftIndex)>>> 16)].getAccessor().get(((leftIndex)& 65535));
    }
  }

write

public static com.sun.codemodel.JInvocation write(TypeProtos.MajorType type,
 com.sun.codemodel.JVar vector,
 ClassGenerator.HoldingContainer in,
 com.sun.codemodel.JExpression indexVariable,
 String setMethodName)