org.apache.hadoop.hive.serde2.lazy

Class LazyUnion

java.lang.Object

org.apache.hadoop.hive.serde2.lazy.LazyObject<OI>

org.apache.hadoop.hive.serde2.lazy.LazyNonPrimitive<LazyUnionObjectInspector>

org.apache.hadoop.hive.serde2.lazy.LazyUnion

All Implemented Interfaces:

LazyObjectBase

public class LazyUnion
extends LazyNonPrimitive<LazyUnionObjectInspector>

LazyObject for storing a union. The field of a union can be primitive or non-primitive.

Field Summary

Fields inherited from class org.apache.hadoop.hive.serde2.lazy.LazyNonPrimitive

bytes, length, start

Fields inherited from class org.apache.hadoop.hive.serde2.lazy.LazyObject

isNull, oi

Constructor Summary

Constructors

Constructor and Description
LazyUnion(LazyUnionObjectInspector oi) Construct a LazyUnion object with the ObjectInspector.
LazyUnion(LazyUnionObjectInspector oi, byte tag, Object field)

Method Summary

Modifier and Type	Method and Description
Object	getField() Get the field out of the union.
byte	getTag() Get the tag of the union
void	init(ByteArrayRef bytes, int start, int length) Set the row data for this LazyUnion.

Methods inherited from class org.apache.hadoop.hive.serde2.lazy.LazyNonPrimitive

hashCode, isNull, isNull

Methods inherited from class org.apache.hadoop.hive.serde2.lazy.LazyObject

getInspector, getObject, setInspector, setNull

Methods inherited from class java.lang.Object

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

Constructor Detail

LazyUnion

public LazyUnion(LazyUnionObjectInspector oi)

Construct a LazyUnion object with the ObjectInspector.

LazyUnion

public LazyUnion(LazyUnionObjectInspector oi,
                 byte tag,
                 Object field)

Method Detail

init

public void init(ByteArrayRef bytes,
                 int start,
                 int length)

Set the row data for this LazyUnion.

Specified by:

init in interface LazyObjectBase

Overrides:

init in class LazyNonPrimitive<LazyUnionObjectInspector>

Parameters:

bytes - The wrapper of the byte[].

start - The start position inside the bytes.

length - The length of the data, starting from "start"

See Also:

LazyObject.init(ByteArrayRef, int, int)

getField

public Object getField()

Get the field out of the union.

Returns:

The field as a LazyObject

getTag

public byte getTag()

Get the tag of the union

Returns:

The tag byte