org.apache.hadoop.hive.serde2.lazy

Class LazyObjectBase

java.lang.Object

org.apache.hadoop.hive.serde2.lazy.LazyObjectBase

Direct Known Subclasses:

LazyBinaryObject, LazyObject

public abstract class LazyObjectBase
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
LazyObjectBase()

Method Summary

Modifier and Type	Method and Description
abstract java.lang.Object	getObject() If the LazyObjectBase is a primitive Object, then deserialize it and return the actual primitive Object.
abstract void	init(ByteArrayRef bytes, int start, int length) Set the data for this LazyObjectBase.

Methods inherited from class java.lang.Object

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

Constructor Detail

LazyObjectBase

public LazyObjectBase()

Method Detail

init

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

Set the data for this LazyObjectBase. We take ByteArrayRef instead of byte[] so that we will be able to drop the reference to byte[] by a single assignment. The ByteArrayRef object can be reused across multiple rows.

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:

ByteArrayRef

getObject

public abstract java.lang.Object getObject()

If the LazyObjectBase is a primitive Object, then deserialize it and return the actual primitive Object. Otherwise (array, map, struct), return this.