org.apache.hadoop.hive.serde2.lazy

Class LazyArray

java.lang.Object

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

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

org.apache.hadoop.hive.serde2.lazy.LazyArray

All Implemented Interfaces:

LazyObjectBase

public class LazyArray
extends LazyNonPrimitive<LazyListObjectInspector>

LazyArray stores an array of Lazy Objects. LazyArray does not deal with the case of a NULL array. That is handled by the parent LazyObject.

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

Modifier	Constructor and Description
protected	LazyArray(LazyListObjectInspector oi) Construct a LazyArray object with the ObjectInspector.

Method Summary

Modifier and Type	Method and Description
List<Object>	getList() Returns the List of actual primitive objects.
Object	getListElementObject(int index) Returns the actual primitive object at the index position inside the array represented by this LazyObject.
int	getListLength() Returns -1 for null array.
void	init(ByteArrayRef bytes, int start, int length) Set the row data for this LazyArray.

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

LazyArray

protected LazyArray(LazyListObjectInspector oi)

Construct a LazyArray object with the ObjectInspector.

Parameters:

oi - the oi representing the type of this LazyArray as well as meta information like separator etc.

Method Detail

init

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

Set the row data for this LazyArray.

Specified by:

init in interface LazyObjectBase

Overrides:

init in class LazyNonPrimitive<LazyListObjectInspector>

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)

getListElementObject

public Object getListElementObject(int index)

Returns the actual primitive object at the index position inside the array represented by this LazyObject.

getListLength

public int getListLength()

Returns -1 for null array.

getList

public List<Object> getList()

Returns the List of actual primitive objects. Returns null for null array.