ConfigEpoch (IBM WebSphere Application Server, Release 9.0)

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IBM WebSphere Application Server^TM
Release 9.0

All Classes

Summary:
Nested |
Field |
Constr |
Method

Detail:
Field |
Constr |
Method

java.lang.Object
- com.ibm.websphere.management.repository.ConfigEpoch

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable
```
public class ConfigEpoch
extends java.lang.Object
implements java.lang.Comparable, java.io.Serializable
```
A ConfigEpoch is used to determine if changes have been made to the repository between points in time. A config epoch is a span of time during which there are no repository changes; all ConfigEpoch instances obtained during a single config epoch will be equal to each other. Whenever the repository is changed, a new config epoch begins.
By comparing two ConfigEpoch instances obtained at different points in time, it is possible to determine whether the repository has changed between those points in time. If the objects are not equal, the repository has changed; otherwise, the repository has not changed.

See Also:
Serialized Form

Constructor Summary

Constructors
Constructor and Description

ConfigEpoch()
Creates a ConfigEpoch with the current timestamp.

Method Summary

Methods
Modifier and Type	Method and Description
`int`	`compareTo(java.lang.Object obj)` Compares this `ConfigEpoch` instance with the specified object for order.
`boolean`	`equals(java.lang.Object obj)` Compares this ConfigEpoch instance to another object.
`void`	`refresh()` Not for public use.
`java.lang.String`	`toString()`
`void`	`update()` Not for public use.

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

- Constructor Detail
  - ConfigEpoch
```
public ConfigEpoch()
```
    Creates a ConfigEpoch with the current timestamp.
- Method Detail
  - update
```
public void update()
```
    Not for public use.
  - refresh
```
public void refresh()
```
    Not for public use.
  - equals
```
public boolean equals(java.lang.Object obj)
```
    Compares this ConfigEpoch instance to another object.
    
    Overrides:
    
    equals in class java.lang.Object
    
    Parameters:
    obj - object to be compared to this ConfigEpoch instance
    
    Returns:
    true if obj is an instance of ConfigEpoch with the same value as this instance
  - toString
```
public java.lang.String toString()
```
    Overrides:
    
    toString in class java.lang.Object
  - compareTo
```
public int compareTo(java.lang.Object obj)
```
    Compares this ConfigEpoch instance with the specified object for order. Returns a negative integer, zero, or a positive integer as this object is older than, equal to, or newer than the specified object.
    
    Specified by:
    
    compareTo in interface java.lang.Comparable
    
    Parameters:
    obj - the object to be compared
    
    Returns:
    a negative integer, zero, or a positive integer as this object is older than, equal to, or greater than the specified object.
    
    Throws:
    
    java.lang.ClassCastException - if the specified object is not an instance of ConfigEpoch