org.apache.hadoop.hive.serde2.objectinspector

Interface ListObjectInspector [ source ]

All Superinterfaces:

Cloneable, ObjectInspector

All Known Subinterfaces:

SettableListObjectInspector

All Known Implementing Classes:

LazyBinaryListObjectInspector, LazyListObjectInspector, StandardConstantListObjectInspector, StandardListObjectInspector

public interface ListObjectInspector
extends ObjectInspector

ListObjectInspector.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.hadoop.hive.serde2.objectinspector.ObjectInspector

ObjectInspector.Category

Method Summary

Methods

Modifier and Type	Method and Description
List<?>	getList(Object data) returns null for data = null.
Object	getListElement(Object data, int index) returns null for null list, out-of-the-range index.
ObjectInspector	getListElementObjectInspector()
int	getListLength(Object data) returns -1 for data = null.

Methods inherited from interface org.apache.hadoop.hive.serde2.objectinspector.ObjectInspector

getCategory, getTypeName

Method Detail

getListElementObjectInspector

ObjectInspector getListElementObjectInspector()

getListElement

Object getListElement(Object data,
                    int index)

returns null for null list, out-of-the-range index.

getListLength

int getListLength(Object data)

returns -1 for data = null.

getList

List<?> getList(Object data)

returns null for data = null. Note: This method should not return a List object that is reused by the same ListObjectInspector, because it's possible that the same ListObjectInspector will be used in multiple places in the code. However it's OK if the List object is part of the Object data.