org.apache.hadoop.hive.ql.udf.generic
Class GenericUDAFLag

java.lang.Object
  extended by org.apache.hadoop.hive.ql.udf.generic.AbstractGenericUDAFResolver
      extended by org.apache.hadoop.hive.ql.udf.generic.GenericUDAFLeadLag
          extended by org.apache.hadoop.hive.ql.udf.generic.GenericUDAFLag
All Implemented Interfaces:
GenericUDAFResolver, GenericUDAFResolver2

@WindowFunctionDescription(description=,
                           supportsWindow=false,
                           pivotResult=true,
                           impliesOrder=true)
public class GenericUDAFLag
extends GenericUDAFLeadLag


Nested Class Summary
static class GenericUDAFLag.GenericUDAFLagEvaluator
           
 
Nested classes/interfaces inherited from class org.apache.hadoop.hive.ql.udf.generic.GenericUDAFLeadLag
GenericUDAFLeadLag.GenericUDAFLeadLagEvaluator
 
Constructor Summary
GenericUDAFLag()
           
 
Method Summary
protected  GenericUDAFLeadLag.GenericUDAFLeadLagEvaluator createLLEvaluator()
           
protected  String functionName()
           
 
Methods inherited from class org.apache.hadoop.hive.ql.udf.generic.GenericUDAFLeadLag
getEvaluator
 
Methods inherited from class org.apache.hadoop.hive.ql.udf.generic.AbstractGenericUDAFResolver
getEvaluator
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

GenericUDAFLag

public GenericUDAFLag()
Method Detail

functionName

protected String functionName()
Specified by:
functionName in class GenericUDAFLeadLag

createLLEvaluator

protected GenericUDAFLeadLag.GenericUDAFLeadLagEvaluator createLLEvaluator()
Specified by:
createLLEvaluator in class GenericUDAFLeadLag


Copyright © 2012 The Apache Software Foundation