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

java.lang.Object
  org.apache.hadoop.hive.ql.udf.generic.GenericUDF
      org.apache.hadoop.hive.ql.udf.generic.GenericUDFLeadLag
          org.apache.hadoop.hive.ql.udf.generic.GenericUDFLag

All Implemented Interfaces:

Closeable

public class GenericUDFLag
extends GenericUDFLeadLag

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.hive.ql.udf.generic.GenericUDF

GenericUDF.DeferredJavaObject, GenericUDF.DeferredObject

Constructor Summary

GenericUDFLag()

Method Summary

protected String	_getFnName()
protected int	getIndex(int amt)
protected Object	getRow(int amt)

Methods inherited from class org.apache.hadoop.hive.ql.udf.generic.GenericUDFLeadLag

evaluate, getAmt, getDefaultArgOI, getDefaultValueConverter, getDisplayString, getExprEvaluator, getFirstArgOI, getpItr, initialize, setAmt, setDefaultArgOI, setDefaultValueConverter, setExprEvaluator, setFirstArgOI, setpItr

Methods inherited from class org.apache.hadoop.hive.ql.udf.generic.GenericUDF

close, configure, copyToNewInstance, flip, getRequiredFiles, getRequiredJars, getUdfName, initializeAndFoldConstants

Methods inherited from class java.lang.Object

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

Constructor Detail

GenericUDFLag

public GenericUDFLag()

Method Detail

_getFnName

protected String _getFnName()

Specified by:

_getFnName in class GenericUDFLeadLag

getIndex

protected int getIndex(int amt)

Specified by:

getIndex in class GenericUDFLeadLag

getRow

protected Object getRow(int amt)
                 throws HiveException

Specified by:

getRow in class GenericUDFLeadLag

Throws:

HiveException