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

Class GenericUDTFGetSplits

java.lang.Object

org.apache.hadoop.hive.ql.udf.generic.GenericUDTF

org.apache.hadoop.hive.ql.udf.generic.GenericUDTFGetSplits

public class GenericUDTFGetSplits
extends GenericUDTF

GenericUDTFGetSplits.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	GenericUDTFGetSplits.PlanFragment

Field Summary

Fields

Modifier and Type	Field and Description
protected IntObjectInspector	intOI
protected org.apache.hadoop.mapred.JobConf	jc
protected StringObjectInspector	stringOI

Constructor Summary

Constructors

Constructor and Description
GenericUDTFGetSplits()

Method Summary

Modifier and Type	Method and Description
void	close() Called to notify the UDTF that there are no more rows to process.
GenericUDTFGetSplits.PlanFragment	createPlanFragment(String query, int num, org.apache.hadoop.yarn.api.records.ApplicationId splitsAppId)
org.apache.hadoop.mapred.InputSplit[]	getSplits(org.apache.hadoop.mapred.JobConf job, int numSplits, TezWork work, Schema schema, org.apache.hadoop.yarn.api.records.ApplicationId applicationId, boolean generateSingleSplit)
StructObjectInspector	initialize(ObjectInspector[] arguments) Initialize this GenericUDTF.
void	process(Object[] arguments) Give a set of arguments for the UDTF to process.

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

configure, forward, initialize, setCollector

Methods inherited from class java.lang.Object

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

Field Detail

stringOI

protected transient StringObjectInspector stringOI

intOI

protected transient IntObjectInspector intOI

jc

protected transient org.apache.hadoop.mapred.JobConf jc

Constructor Detail

GenericUDTFGetSplits

public GenericUDTFGetSplits()

Method Detail

initialize

public StructObjectInspector initialize(ObjectInspector[] arguments)
                                 throws UDFArgumentException

Description copied from class: GenericUDTF

Initialize this GenericUDTF. This will be called only once per instance.

Overrides:

initialize in class GenericUDTF

Parameters:

arguments - An array of ObjectInspectors for the arguments

Returns:

A StructObjectInspector for output. The output struct represents a row of the table where the fields of the stuct are the columns. The field names are unimportant as they will be overridden by user supplied column aliases.

Throws:

UDFArgumentException

process

public void process(Object[] arguments)
             throws HiveException

Description copied from class: GenericUDTF

Give a set of arguments for the UDTF to process.

Specified by:

process in class GenericUDTF

Parameters:

arguments - object array of arguments

Throws:

HiveException

createPlanFragment

public GenericUDTFGetSplits.PlanFragment createPlanFragment(String query,
                                                            int num,
                                                            org.apache.hadoop.yarn.api.records.ApplicationId splitsAppId)
                                                     throws HiveException

Throws:

HiveException

getSplits

public org.apache.hadoop.mapred.InputSplit[] getSplits(org.apache.hadoop.mapred.JobConf job,
                                                       int numSplits,
                                                       TezWork work,
                                                       Schema schema,
                                                       org.apache.hadoop.yarn.api.records.ApplicationId applicationId,
                                                       boolean generateSingleSplit)
                                                throws IOException

Throws:

IOException

close

public void close()
           throws HiveException

Description copied from class: GenericUDTF

Called to notify the UDTF that there are no more rows to process. Clean up code or additional forward() calls can be made here.

Specified by:

close in class GenericUDTF

Throws:

HiveException