org.apache.tools.ant.types.selectors.modifiedselector
Interface Cache
public
interface
Cache
A Cache let the user store key-value-pairs in a permanent manner and access
them.
It is possible that a client uses get() before load() therefore the
implementation must ensure that no error occurred because of the wrong
order.
The implementing class should implement a useful toString() method.
Since: Ant 1.6
Version: 2003-09-13
Method Summary |
void | delete() Deletes the cache. |
Object | get(Object key)
Returns a value for a given key from the cache. |
boolean | isValid()
Checks its prerequisites. |
Iterator | iterator()
Returns an iterator over the keys in the cache. |
void | load() Loads the cache, must handle not existing cache. |
void | put(Object key, Object value)
Saves a key-value-pair in the cache. |
void | save() Saves modification of the cache. |
public void delete()
Deletes the cache. If file based the file has to be deleted also.
public Object get(Object key)
Returns a value for a given key from the cache.
Parameters: key the key
Returns: the stored value
public boolean isValid()
Checks its prerequisites.
Returns: true if all is ok, otherwise false.
public Iterator iterator()
Returns an iterator over the keys in the cache.
Returns: An iterator over the keys.
public void load()
Loads the cache, must handle not existing cache.
public void put(Object key, Object value)
Saves a key-value-pair in the cache.
Parameters: key the key value the value
public void save()
Saves modification of the cache.
Copyright