oracle.kv

Class ReturnValueVersion

java.lang.Object

oracle.kv.ValueVersion

oracle.kv.ReturnValueVersion

public class ReturnValueVersion
extends ValueVersion

Used with put and delete operations to return the previous value and version.

A ReturnValueVersion instance may be created and passed as the prevValue parameter to methods such as KVStore.put(Key, Value, ReturnValueVersion, Durability, long, TimeUnit).

For best performance, it is important to choose only the properties that are required. The KV Store is optimized to avoid I/O when the requested properties are in cache.

Note that because both properties are optional, the version property, value property, or both properties may be null.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ReturnValueVersion.Choice Specifies whether to return the value, version, both or neither.

Constructor Summary

Constructors

Constructor and Description
ReturnValueVersion(ReturnValueVersion.Choice returnChoice) Creates an object for returning the value, version or both.

Method Summary

Methods

Modifier and Type	Method and Description
ReturnValueVersion.Choice	getReturnChoice() Returns the ReturnValueVersion.Choice used to create this object.

Methods inherited from class oracle.kv.ValueVersion

getValue, getVersion, setValue, setVersion, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

ReturnValueVersion

public ReturnValueVersion(ReturnValueVersion.Choice returnChoice)

Creates an object for returning the value, version or both.

Parameters:

returnChoice - determines whether the value, version, both or none are returned.

Method Detail

getReturnChoice

public ReturnValueVersion.Choice getReturnChoice()

Returns the ReturnValueVersion.Choice used to create this object.