| java.lang.Object
 org.griphyn.vdl.router.Cache
| Cache | | public class Cache (Code) | |
author:
Jens-S. Vöckler
author:
Yong Zhao
version:
$Revision: 50 $ |
| Inner Class :public class CacheEntry | |
| Field Summary | |
| java.util.Map | m_cache
remember the objects to cache for. | | static long[] | m_stats
Maintains statistics. | | long | m_ttl
remember how long to save a cache entry. |
| Constructor Summary | |
| public | Cache(int ttl)
ctor: Initialize the base functionalities of the cache. |
| Method Summary | |
| public Object | get(Object key)
Requests an item from the cache. | | public long[] | getStatistics()
Requests a copy of the statistics counters. | | public Object | set(Object key, Object value)
Enters a value into the cache.
Parameters:
key - is a concise, unique description of the object.
Parameters:
value - is the object to be cached. |
| m_cache | | java.util.Map m_cache(Code) | | remember the objects to cache for. The cache consists of a concise
key to locate any object, a value for the located large object, and
a lifetime for the object.
|
| m_stats | | static long[] m_stats(Code) | | Maintains statistics.
|
| m_ttl | | long m_ttl(Code) | | remember how long to save a cache entry.
|
| Cache | | public Cache(int ttl)(Code) | | ctor: Initialize the base functionalities of the cache.
Parameters:
ttl - is the lifetime of a positive entry in seconds. |
| get | | public Object get(Object key)(Code) | | Requests an item from the cache.
Parameters:
key - is the descriptor of the object. |
| getStatistics | | public long[] getStatistics()(Code) | | Requests a copy of the statistics counters.
the counter values. |
| set | | public Object set(Object key, Object value)(Code) | | Enters a value into the cache.
Parameters:
key - is a concise, unique description of the object.
Parameters:
value - is the object to be cached. null for a fresh object, or the old CacheEntry. |
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