com.zentadata.client

Class DataFrame

java.lang.Object

com.zentadata.client.DataFrame

public class DataFrame
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	DataFrame.Distinct
static class	DataFrame.DropColumn
static class	DataFrame.GroupBy
static class	DataFrame.Join
static class	DataFrame.LeftJoin
static class	DataFrame.Limit
static interface	DataFrame.Operation
static class	DataFrame.Select
static class	DataFrame.Sort
static class	DataFrame.Where
static class	DataFrame.WithColumn

Method Summary

Modifier and Type	Method and Description
Expression	col(String value)
ResultSet	collect()
DataFrame	distinct()
DataFrame	dropColumn(String colName)
DataFormat	getDataFormat()
String	getDataLinkId()
List<DataFrame.Operation>	getOps()
Map<String,String>	getOptions()
List<String>	getReference()
String	getStage()
DataFrame	groupBy(List<Expression> group, Expression... aggs)
DataFrame	join(DataFrame de, Expression expr)
DataFrame	leftJoin(DataFrame de, Expression expr)
DataFrame	limit(int limit)
DataFrame	select(Expression... expressions)
DataFrame	sort(Expression... expressions)
String	toString()
DataFrame	where(Expression expr)
DataFrame	withColumn(String colName, Expression expr)
WriteRequestBuilder	write(String dataLinkId)

Methods inherited from class java.lang.Object

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

Method Detail

getDataLinkId

public String getDataLinkId()

getReference

public List<String> getReference()

getDataFormat

public DataFormat getDataFormat()

getOptions

public Map<String,String> getOptions()

getOps

public List<DataFrame.Operation> getOps()

getStage

public String getStage()

select

public DataFrame select(Expression... expressions)

where

public DataFrame where(Expression expr)

join

public DataFrame join(DataFrame de,
                      Expression expr)

leftJoin

public DataFrame leftJoin(DataFrame de,
                          Expression expr)

groupBy

public DataFrame groupBy(List<Expression> group,
                         Expression... aggs)

limit

public DataFrame limit(int limit)

sort

public DataFrame sort(Expression... expressions)

distinct

public DataFrame distinct()

withColumn

public DataFrame withColumn(String colName,
                            Expression expr)

dropColumn

public DataFrame dropColumn(String colName)

col

public Expression col(String value)

toString

public String toString()

Overrides:

toString in class Object

collect

public ResultSet collect()
                  throws JobException

Throws:

JobException

write

public WriteRequestBuilder write(String dataLinkId)