org.apache.hadoop.hive.serde2.objectinspector

Class DelegatedListObjectInspector

java.lang.Object

org.apache.hadoop.hive.serde2.objectinspector.DelegatedListObjectInspector

All Implemented Interfaces:

java.lang.Cloneable, ListObjectInspector, ObjectInspector

public class DelegatedListObjectInspector
extends java.lang.Object
implements ListObjectInspector

Nested Class Summary

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

ObjectInspector.Category

Constructor Summary

Constructors

Constructor and Description
DelegatedListObjectInspector(ListObjectInspector delegate)

Method Summary

Modifier and Type	Method and Description
ObjectInspector.Category	getCategory() An ObjectInspector must inherit from one of the following interfaces if getCategory() returns: PRIMITIVE: PrimitiveObjectInspector LIST: ListObjectInspector MAP: MapObjectInspector STRUCT: StructObjectInspector.
java.util.List<?>	getList(java.lang.Object data) returns null for data = null.
java.lang.Object	getListElement(java.lang.Object data, int index) returns null for null list, out-of-the-range index.
ObjectInspector	getListElementObjectInspector()
int	getListLength(java.lang.Object data) returns -1 for data = null.
java.lang.String	getTypeName() Returns the name of the data type that is inspected by this ObjectInspector.
void	reset(ListObjectInspector delegate)

Methods inherited from class java.lang.Object

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

Constructor Detail

DelegatedListObjectInspector

public DelegatedListObjectInspector(ListObjectInspector delegate)

Method Detail

reset

public void reset(ListObjectInspector delegate)

getListElementObjectInspector

public ObjectInspector getListElementObjectInspector()

Specified by:

getListElementObjectInspector in interface ListObjectInspector

getListElement

public java.lang.Object getListElement(java.lang.Object data,
                                       int index)

Description copied from interface: ListObjectInspector

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

Specified by:

getListElement in interface ListObjectInspector

getListLength

public int getListLength(java.lang.Object data)

Description copied from interface: ListObjectInspector

returns -1 for data = null.

Specified by:

getListLength in interface ListObjectInspector

getList

public java.util.List<?> getList(java.lang.Object data)

Description copied from interface: ListObjectInspector

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.

Specified by:

getList in interface ListObjectInspector

getTypeName

public java.lang.String getTypeName()

Description copied from interface: ObjectInspector

Returns the name of the data type that is inspected by this ObjectInspector. This is used to display the type information to the user. For primitive types, the type name is standardized. For other types, the type name can be something like "list", "map", java class names, or user-defined type names similar to typedef.

Specified by:

getTypeName in interface ObjectInspector

getCategory

public ObjectInspector.Category getCategory()

Description copied from interface: ObjectInspector

An ObjectInspector must inherit from one of the following interfaces if getCategory() returns: PRIMITIVE: PrimitiveObjectInspector LIST: ListObjectInspector MAP: MapObjectInspector STRUCT: StructObjectInspector.

Specified by:

getCategory in interface ObjectInspector