com.hazelcast.internal.util

Class UuidUtil

java.lang.Object

com.hazelcast.internal.util.UuidUtil

public final class UuidUtil
extends Object

Util class to generate type 4 (pseudo randomly generated) UUID.

Creates UUID of different quality of randomness, which are based on cryptographically weak Random and strong SecureRandom pseudo random number generators.

Field Summary

Fields

Modifier and Type	Field and Description
static UUID	NIL_UUID The nil UUID is special form of UUID that is specified to have all 128 bits set to zero as described in the RFC 4122.

Method Summary

Modifier and Type	Method and Description
static UUID	newSecureUUID() Static factory to retrieve a type 4 (pseudo randomly generated) UUID.
static String	newSecureUuidString() Static factory to retrieve a type 4 (pseudo randomly generated) UUID based string.
static UUID	newUnsecureUUID() Static factory to retrieve a type 4 (pseudo randomly generated) UUID.
static String	newUnsecureUuidString() Static factory to retrieve a type 4 (pseudo randomly generated) UUID based string.

Methods inherited from class java.lang.Object

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

Field Detail

NIL_UUID

public static final UUID NIL_UUID

The nil UUID is special form of UUID that is specified to have all 128 bits set to zero as described in the RFC 4122.

Method Detail

newUnsecureUuidString

public static String newUnsecureUuidString()

Static factory to retrieve a type 4 (pseudo randomly generated) UUID based string. The UUID string is generated using a cryptographically weak pseudo random number generator.

Returns:

A randomly generated UUID base string

newSecureUuidString

public static String newSecureUuidString()

Static factory to retrieve a type 4 (pseudo randomly generated) UUID based string. The UUID string is generated using a cryptographically strong pseudo random number generator.

Returns:

A randomly generated UUID base string

newUnsecureUUID

public static UUID newUnsecureUUID()

Static factory to retrieve a type 4 (pseudo randomly generated) UUID. The UUID is generated using a cryptographically weak pseudo random number generator.

Returns:

A randomly generated UUID

newSecureUUID

public static UUID newSecureUUID()

Static factory to retrieve a type 4 (pseudo randomly generated) UUID. The UUID is generated using a cryptographically strong pseudo random number generator.

Returns:

A randomly generated UUID