UlidCreator (polaris-toolkit 3.3.6 API)

java.lang.Object
- io.polaris.core.ulid.UlidCreator

```
public final class UlidCreator
extends Object
```
A class that generates ULIDs.
Both types of ULID can be easily created by this generator, i.e. monotonic and non-monotonic.
In addition, a "non-standard" hash-based ULID can also be generated, in which the random component is replaced with the first 10 bytes of an SHA-256 hash.

作者:

Qt

另请参阅:

ULID Specification, ULID Creator

方法概要

所有方法静态方法具体方法
限定符和类型	方法和说明
`static Ulid`	`getHashUlid(long time, byte[] bytes)` Returns a Hash ULID.
`static Ulid`	`getHashUlid(long time, String string)` Returns a Hash ULID.
`static Ulid`	`getMonotonicUlid()` Returns a Monotonic ULID.
`static Ulid`	`getMonotonicUlid(long time)` Returns a Monotonic ULID.
`static Ulid`	`getUlid()` Returns a ULID.
`static Ulid`	`getUlid(long time)` Returns a ULID.

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- 方法详细资料
  - getUlid
```
public static Ulid getUlid()
```
    Returns a ULID.
    The random component is reset for each new ULID generated.
    
    返回:
    
    a ULID
  - getUlid
```
public static Ulid getUlid(long time)
```
    Returns a ULID.
    The random component is reset for each new ULID generated.
    
    参数:
    
    time - the current time in milliseconds, measured from the UNIX epoch of 1970-01-01T00:00Z (UTC)
    
    返回:
    
    a ULID
  - getMonotonicUlid
```
public static Ulid getMonotonicUlid()
```
    Returns a Monotonic ULID.
    The random component is incremented for each new ULID generated in the same millisecond.
    
    返回:
    
    a ULID
  - getMonotonicUlid
```
public static Ulid getMonotonicUlid(long time)
```
    Returns a Monotonic ULID.
    The random component is incremented for each new ULID generated in the same millisecond.
    
    参数:
    
    time - the current time in milliseconds, measured from the UNIX epoch of 1970-01-01T00:00Z (UTC)
    
    返回:
    
    a ULID
  - getHashUlid
```
public static Ulid getHashUlid(long time,
                               String string)
```
    Returns a Hash ULID.
    The random component is replaced with the first 10 bytes of an SHA-256 hash.
    It always returns the same ULID for a specific pair of time and string.
    Usage example:
```
 long time = file.getCreatedAt();
 String name = file.getFileName();
 Ulid ulid = UlidCreator.getHashUlid(time, name);
 
```
    参数:
    
    time - the time in milliseconds, measured from the UNIX epoch of 1970-01-01T00:00Z (UTC)
    
    string - a string to be hashed using SHA-256 algorithm.
    
    返回:
    
    a ULID
    
    从以下版本开始:
    
    5.2.0
  - getHashUlid
```
public static Ulid getHashUlid(long time,
                               byte[] bytes)
```
    Returns a Hash ULID.
    The random component is replaced with the first 10 bytes of an SHA-256 hash.
    It always returns the same ULID for a specific pair of time and bytes.
    Usage example:
```
 long time = file.getCreatedAt();
 byte[] bytes = file.getFileBinary();
 Ulid ulid = UlidCreator.getHashUlid(time, bytes);
 
```
    参数:
    
    time - the time in milliseconds, measured from the UNIX epoch of 1970-01-01T00:00Z (UTC)
    
    bytes - a byte array to be hashed using SHA-256 algorithm.
    
    返回:
    
    a ULID
    
    从以下版本开始:
    
    5.2.0

类 UlidCreator

方法概要

从类继承的方法 java.lang.Object

方法详细资料

getUlid

getUlid

getMonotonicUlid

getMonotonicUlid

getHashUlid

getHashUlid