Package com.github.f4b6a3.uuid.codec.uuid

Class DotNetGuid1Codec

java.lang.Object

com.github.f4b6a3.uuid.codec.uuid.DotNetGuid1Codec

All Implemented Interfaces:

UuidCodec<UUID>

public class DotNetGuid1Codec
extends Object
implements UuidCodec<UUID>

Field Summary

Fields

Modifier and Type	Field	Description
static DotNetGuid1Codec	INSTANCE	A shared immutable instance.

Constructor Summary

Constructors

Constructor	Description
DotNetGuid1Codec()

Method Summary

Modifier and Type	Method	Description
UUID	decode(UUID uuid)	Convert a .Net Guid to a time-based UUID (v1).
UUID	encode(UUID uuid)	Codec for .Net Guid.
protected static UUID	toAndFromDotNetGuid(UUID uuid)	Convert a UUID to and from a .Net Guid.

Methods inherited from class java.lang.Object

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

Field Detail

INSTANCE

public static final DotNetGuid1Codec INSTANCE

A shared immutable instance.

Constructor Detail

DotNetGuid1Codec

public DotNetGuid1Codec()

Method Detail

encode

public UUID encode(UUID uuid)

Codec for .Net Guid. This codec converts a time-based UUID (v1) to a .Net Guid. It rearranges the most significant bytes from big-endian to little-endian, and vice-versa. The .Net Guid stores the most significant bytes as little-endian, while the least significant bytes are stored as big-endian (network order).

Specified by:

encode in interface UuidCodec<UUID>

Parameters:

uuid - a UUID

Returns:

another UUID

decode

public UUID decode(UUID uuid)

Convert a .Net Guid to a time-based UUID (v1). It rearranges the most significant bytes from big-endian to little-endian, and vice-versa. The .Net Guid stores the most significant bytes as little-endian, while the least significant bytes are stored as big-endian (network order).

Specified by:

decode in interface UuidCodec<UUID>

Parameters:

uuid - a UUID

Returns:

another UUID

toAndFromDotNetGuid

protected static UUID toAndFromDotNetGuid(UUID uuid)

Convert a UUID to and from a .Net Guid. It rearranges the most significant bytes from big-endian to little-endian, and vice-versa. The .Net Guid stores the most significant bytes as little-endian, while the least significant bytes are stored as big-endian (network order). ### References * How to Generate Sequential GUIDs for SQL Server in .NET https://blogs.msdn.microsoft.com/dbrowne/2012/07/03/how-to-generate-sequential-guids-for-sql-server-in-net/ * How are GUIDs sorted by SQL Server? http://sqlblog.com/blogs/alberto_ferrari/archive/2007/08/31/how-are-guids-sorted-by-sql-server.aspx

Parameters:

uuid - a UUID

Returns:

another UUID