ConcurrentMap (OpenJPA Utilities Library 4.1.0 API)

All Superinterfaces:

Map

All Known Implementing Classes:

ConcurrentHashMap, ConcurrentReferenceHashMap
```
public interface ConcurrentMap
extends Map
```
A highly concurrent map.

Author:

Abe White

Nested Class Summary
- Nested classes/interfaces inherited from interface java.util.Map
  Map.Entry<K extends Object,V extends Object>

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`Iterator`	`randomEntryIterator()`	Iterate over map entries, beginning at an arbitrary (not strictly random) entry.
`Map.Entry`	`removeRandom()`	Remove an arbitrary(not strictly random) entry from the map.

Methods inherited from interface java.util.Map
clear, compute, computeIfAbsent, computeIfPresent, containsKey, containsValue, entrySet, equals, forEach, get, getOrDefault, hashCode, isEmpty, keySet, merge, put, putAll, putIfAbsent, remove, remove, replace, replace, replaceAll, size, values

- Method Detail
  - removeRandom
```
Map.Entry removeRandom()
```
    Remove an arbitrary(not strictly random) entry from the map. This allows implementation of concurrent caches with size ceilings.
    
    Returns:
    
    the removed entry, or null if map is empty
  - randomEntryIterator
```
Iterator randomEntryIterator()
```
    Iterate over map entries, beginning at an arbitrary (not strictly random) entry.