| org.jaffa.cache.ICache
All known Subclasses: org.jaffa.cache.WeakCache, org.jaffa.cache.SimpleCache,
| ICache | | public interface ICache (Code) | | This is the interface for the various cache implementations.
author:
GautamJ |
| Method Summary | |
| public void | clear()
Removes all mappings from this cache. | | public boolean | containsKey(Object key)
Returns true if this cache contains a mapping for the specified key.
Parameters:
key - key whose presence in this cache is to be tested. | | public Object | get(Object key)
Returns the value to which cache maps the specified key. | | public boolean | isEmpty()
Returns true if this cache contains no key-value mappings. | | public Set | keySet()
Returns a set view of the keys contained in this cache. | | public void | put(Object key, Object value)
Associates the specified value with the specified key in this cache. | | public void | remove(Object key)
Removes the mapping for this key from this cache if it is present. | | public int | size()
Returns the number of key-value mappings in this cache. |
| clear | | public void clear()(Code) | | Removes all mappings from this cache.
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| containsKey | | public boolean containsKey(Object key)(Code) | | Returns true if this cache contains a mapping for the specified key.
Parameters:
key - key whose presence in this cache is to be tested. true if this cache contains a mapping for the specified key. |
| get | | public Object get(Object key)(Code) | | Returns the value to which cache maps the specified key. Returns null if the cache contains no mapping for this key. A return value of null does not necessarily indicate that the cache contains no mapping for the key; it's also possible that the cache explicitly maps the key to null. The containsKey operation may be used to distinguish these two cases.
Parameters:
key - key whose associated value is to be returned. the value to which this cache maps the specified key, or null if the cache contains no mapping for this key. |
| isEmpty | | public boolean isEmpty()(Code) | | Returns true if this cache contains no key-value mappings.
true if this cache contains no key-value mappings. |
| keySet | | public Set keySet()(Code) | | Returns a set view of the keys contained in this cache. The set is backed by the cache, so changes to the cache are reflected in the set, and vice-versa. If the cache is modified while an iteration over the set is in progress, the results of the iteration are undefined.
a set view of the keys contained in this cache. |
| put | | public void put(Object key, Object value)(Code) | | Associates the specified value with the specified key in this cache. If the cache previously contained a mapping for this key, the old value is replaced by the specified value.
Parameters:
key - key with which the specified value is to be associated.
Parameters:
value - value to be associated with the specified key. |
| remove | | public void remove(Object key)(Code) | | Removes the mapping for this key from this cache if it is present.
Parameters:
key - key whose mapping is to be removed from the cache. |
| size | | public int size()(Code) | | Returns the number of key-value mappings in this cache.
the number of key-value mappings in this cache. |
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