UUIDs (elasticsearch-extend 3.2 API)

java.lang.Object
- org.elasticsearch.common.UUIDs

```
public class UUIDs
extends Object
```

Constructor Summary

Constructors
Constructor Description

UUIDs()

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static String`	`base64UUID()`	Generates a time-based UUID (similar to Flake IDs), which is preferred when generating an ID to be indexed into a Lucene index as primary key.
`static String`	`legacyBase64UUID()`	Legacy implementation of `base64UUID()`, for pre 6.0 indices.
`static String`	`randomBase64UUID()`	Returns a Base64 encoded version of a Version 4.0 compatible UUID as defined here: http://www.ietf.org/rfc/rfc4122.txt, using a private `SecureRandom` instance
`static String`	`randomBase64UUID(Random random)`	Returns a Base64 encoded version of a Version 4.0 compatible UUID as defined here: http://www.ietf.org/rfc/rfc4122.txt, using the provided `Random` instance
`static SecureString`	`randomBase64UUIDSecureString()`	Returns a Base64 encoded `SecureString` of a Version 4.0 compatible UUID as defined here: http://www.ietf.org/rfc/rfc4122.txt, using a private `SecureRandom` instance

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - UUIDs
```
public UUIDs()
```
- Method Detail
  - base64UUID
```
public static String base64UUID()
```
    Generates a time-based UUID (similar to Flake IDs), which is preferred when generating an ID to be indexed into a Lucene index as primary key. The id is opaque and the implementation is free to change at any time!
  - legacyBase64UUID
```
public static String legacyBase64UUID()
```
    Legacy implementation of base64UUID(), for pre 6.0 indices.
  - randomBase64UUID
```
public static String randomBase64UUID(Random random)
```
    Returns a Base64 encoded version of a Version 4.0 compatible UUID as defined here: http://www.ietf.org/rfc/rfc4122.txt, using the provided Random instance
  - randomBase64UUID
```
public static String randomBase64UUID()
```
    Returns a Base64 encoded version of a Version 4.0 compatible UUID as defined here: http://www.ietf.org/rfc/rfc4122.txt, using a private SecureRandom instance
  - randomBase64UUIDSecureString
```
public static SecureString randomBase64UUIDSecureString()
```
    Returns a Base64 encoded SecureString of a Version 4.0 compatible UUID as defined here: http://www.ietf.org/rfc/rfc4122.txt, using a private SecureRandom instance