SuppressCache

所有类

概要:
嵌套 |
字段 |
构造器 |
方法

详细资料:
字段 |
构造器 |
方法

java.lang.Object
- com.fr.third.jgroups.util.SuppressCache<T>

```
public class SuppressCache<T>
extends java.lang.Object
```
Cache which keeps a timestamp and counter for every key. When a timestamp has expired (based on an expiry time), the corresponding key is removed.
This cache is mainly used to suppress identical warning messages (in TP), e.g. if we get 1000 warnings about reception of messages from P (who's not in our cluster), we can print such a message only every 60 seconds (expiry time = 60 secs).

从以下版本开始:

3.2

作者:

Bela Ban

嵌套类概要

嵌套类
限定符和类型类和说明

static class SuppressCache.Value

字段概要

字段
限定符和类型字段和说明

protected java.util.concurrent.ConcurrentMap<T,SuppressCache.Value> map

protected T NULL_KEY

构造器概要

构造器
构造器和说明

SuppressCache()

方法概要

方法
限定符和类型	方法和说明
`void`	`clear()`
`SuppressCache.Value`	`putIfAbsent(T key, long expiry_time)` Adds a new key to the hashmap, or updates the Value associated with the existing key if present.
`void`	`removeAll(java.util.Collection<T> list)`
`void`	`removeExpired(long expiry_time)`
`void`	`retainAll(java.util.Collection<T> list)`
`int`	`size()` Returns the total count of all values
`java.lang.String`	`toString()`

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

- 字段详细资料
  - map
```
protected final java.util.concurrent.ConcurrentMap<T,SuppressCache.Value> map
```
  - NULL_KEY
```
protected final T NULL_KEY
```
- 构造器详细资料
  - SuppressCache
```
public SuppressCache()
```
- 方法详细资料
  - putIfAbsent
```
public SuppressCache.Value putIfAbsent(T key,
                              long expiry_time)
```
    Adds a new key to the hashmap, or updates the Value associated with the existing key if present. If expiry_time is greater than the age of the Value, the key will be removed.
    
    参数:
    key - The key
    expiry_time - Expiry time (in ms)
    
    返回:
    Null if the key was present and not expired, or the Value associated with the existing key (its count incremented)
  - clear
```
public void clear()
```
  - retainAll
```
public void retainAll(java.util.Collection<T> list)
```
  - removeAll
```
public void removeAll(java.util.Collection<T> list)
```
  - removeExpired
```
public void removeExpired(long expiry_time)
```
  - size
```
public int size()
```
    Returns the total count of all values
  - toString
```
public java.lang.String toString()
```
    覆盖:
    
    toString 在类中 java.lang.Object

所有类

概要:
嵌套 |
字段 |
构造器 |
方法

详细资料:
字段 |
构造器 |
方法