DefaultExpirationPolicy (org.apache.xmlgraphics:xmlgraphics-commons 2.7 API)

java.lang.Object
- org.apache.xmlgraphics.image.loader.cache.DefaultExpirationPolicy

All Implemented Interfaces:

ExpirationPolicy
```
public class DefaultExpirationPolicy
extends Object
implements ExpirationPolicy
```
Implements the default expiration policy for the image cache.

Field Summary

Fields
Modifier and Type Field Description

static int EXPIRATION_IMMEDIATE

static int EXPIRATION_NEVER

Constructor Summary

Constructors
Constructor	Description
`DefaultExpirationPolicy()`	Creates a new policy with default settings (expiration in 60 seconds).
`DefaultExpirationPolicy(int expirationAfter)`	Creates a new policy.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`isExpired(org.apache.xmlgraphics.image.loader.cache.TimeStampProvider provider, long timestamp)`	Indicates whether a cache entry is expired given its creation time stamp.

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

- Field Detail
  - EXPIRATION_IMMEDIATE
```
public static final int EXPIRATION_IMMEDIATE
```
    See Also:
    
    Constant Field Values
  - EXPIRATION_NEVER
```
public static final int EXPIRATION_NEVER
```
    See Also:
    
    Constant Field Values
- Constructor Detail
  - DefaultExpirationPolicy
```
public DefaultExpirationPolicy()
```
    Creates a new policy with default settings (expiration in 60 seconds).
  - DefaultExpirationPolicy
```
public DefaultExpirationPolicy(int expirationAfter)
```
    Creates a new policy.
    
    Parameters:
    
    expirationAfter - the expiration in seconds (a negative value means: never expire)
- Method Detail
  - isExpired
```
public boolean isExpired(org.apache.xmlgraphics.image.loader.cache.TimeStampProvider provider,
                         long timestamp)
```
    Indicates whether a cache entry is expired given its creation time stamp.
    
    Specified by:
    
    isExpired in interface ExpirationPolicy
    
    Parameters:
    
    provider - the provider for new time stamps
    
    timestamp - the creation time stamp (the semantics of System.currentTimeMillis() apply)
    
    Returns:
    
    true if the entry is to be considered expired, false if not