| java.lang.Object
 org.mmbase.cache.CachePolicy
| CachePolicy | | abstract public class CachePolicy implements Serializable(Code) | | A CachePolicy object determines for a given object whether it should be cached or not, and how.
Code that makes use of a cache should use a CachePolicy object, when available, to determine if the
object should be cached or not.
since:
MMBase 1.8
author:
Pierre van Rooden
version:
$Id: CachePolicy.java,v 1.4 2007/02/11 19:21:11 nklasens Exp $ |
| Field Summary | |
| public static CachePolicy | ALWAYS
Standard cache policy that advises to always cache a passed object. | | public static CachePolicy | NEVER
Standard cache policy that advises to never cache a passed object. |
| Constructor Summary | |
| protected | CachePolicy(Object policyKey)
Instantiates a new cache policy, and registers it with the given policy key. | | protected | CachePolicy()
|
| ALWAYS | | public static CachePolicy ALWAYS(Code) | | Standard cache policy that advises to always cache a passed object.
Accessible with the key "always".
|
| NEVER | | public static CachePolicy NEVER(Code) | | Standard cache policy that advises to never cache a passed object.
Accessible with the key "never".
|
| CachePolicy | | protected CachePolicy(Object policyKey)(Code) | | Instantiates a new cache policy, and registers it with the given policy key.
|
| CachePolicy | | protected CachePolicy()(Code) | | Instantiates a new cache policy without registering it
|
| checkPolicy | | abstract public boolean checkPolicy(Object o)(Code) | | Checks whether the policy advises to cache the passed object.
Parameters:
o - the object to check the cache for true if the policy advises to cache this object, false otherwise. |
| getDescription | | public String getDescription()(Code) | | Returns a description of the policy.
|
| getPolicy | | public static CachePolicy getPolicy(Object policyKey)(Code) | | Obtains a cache policy given a policy key.
Parameters:
policyKey - the key of the cache policy the policy key
throws:
IllegalArgumentException - if the policy does not exist |
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