Rule

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.protocols.rules.Rule

所有已实现的接口:

java.lang.Runnable

直接已知子类:

CheckFDMonitor, SampleRule
```
public abstract class Rule
extends java.lang.Object
implements java.lang.Runnable
```
A rule with a condition and (optional) action. When a rule is run, the condition is checked with eval() and - if true - the action is triggered with trigger().

从以下版本开始:

3.3

作者:

Bela Ban

字段概要

字段
限定符和类型字段和说明

protected Log log

protected SUPERVISOR sv

构造器概要

构造器
构造器和说明

Rule()

方法概要

方法
限定符和类型	方法和说明
`abstract java.lang.String`	`condition()` Returns a description of the condition that led to `eval()` returning true
`abstract java.lang.String`	`description()` Describes what the rules does
`void`	`destroy()` Called when rule is uninstalled
`abstract boolean`	`eval()` Evaluates the condition.
`void`	`init()` Called when rule is installed
`Rule`	`log(Log log)`
`abstract java.lang.String`	`name()` Returns the name of the rule.
`void`	`run()`
`Rule`	`supervisor(SUPERVISOR sv)`
`abstract void`	`trigger()` The action of the rule.

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

- 字段详细资料
  - sv
```
protected SUPERVISOR sv
```
  - log
```
protected Log log
```
- 构造器详细资料
  - Rule
```
public Rule()
```
- 方法详细资料
  - supervisor
```
public Rule supervisor(SUPERVISOR sv)
```
  - log
```
public Rule log(Log log)
```
  - name
```
public abstract java.lang.String name()
```
    Returns the name of the rule. Should be unique if a rule needs to be uninstalled
  - description
```
public abstract java.lang.String description()
```
    Describes what the rules does
  - init
```
public void init()
```
    Called when rule is installed
  - destroy
```
public void destroy()
```
    Called when rule is uninstalled
  - eval
```
public abstract boolean eval()
```
    Evaluates the condition. If true, the rule is triggered. If true, the next execution of condition() should return a non-null string
  - condition
```
public abstract java.lang.String condition()
```
    Returns a description of the condition that led to eval() returning true
  - trigger
```
public abstract void trigger()
                      throws java.lang.Throwable
```
    The action of the rule. Triggered if eval() returned true
    
    抛出:
    
    java.lang.Throwable
  - run
```
public void run()
```
    指定者:
    
    run 在接口中 java.lang.Runnable

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