UniqueIdGenerator (JOSM)

java.lang.Object
- org.openstreetmap.josm.data.osm.UniqueIdGenerator

public final class UniqueIdGenerator
extends java.lang.Object

Generator of unique identifiers.

Since:: 15820

Field Summary

Fields
Modifier and Type Field Description

private java.util.concurrent.atomic.AtomicLong idCounter

Constructor Summary

Constructors
Constructor Description

UniqueIdGenerator()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`advanceUniqueId(long newId)`	Advances the current primitive unique id to skip a range of values.
`long`	`currentUniqueId()`	Returns the current primitive unique id.
`long`	`generateUniqueId()`	Generates a new primitive unique id.

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

- Field Detail
  - idCounter
```
private final java.util.concurrent.atomic.AtomicLong idCounter
```
- Constructor Detail
  - UniqueIdGenerator
```
public UniqueIdGenerator()
```
- Method Detail
  - generateUniqueId
```
public long generateUniqueId()
```
    Generates a new primitive unique id.
    
    Returns:
    
    new primitive unique (negative) id
    
    Since:
    
    16108 (made public)
  - currentUniqueId
```
public long currentUniqueId()
```
    Returns the current primitive unique id.
    
    Returns:
    
    the current primitive unique (negative) id (last generated)
  - advanceUniqueId
```
public void advanceUniqueId(long newId)
```
    Advances the current primitive unique id to skip a range of values.
    
    Parameters:
    
    newId - new unique id
    
    Throws:
    
    java.lang.IllegalArgumentException - if newId is greater than current unique id