Interface Cache

All Known Implementing Classes:

SoftReferenceCache

public interface Cache

Method Summary

Modifier and Type	Method	Description
void	clear()	Removes all mappings from a map (optional operation).
Object	get(Object key)
Object	put(Object key, Object value, int sizeEstimate)
Object	remove(Object key)

Method Details

put

Object put(Object key,
 Object value,
 int sizeEstimate)

Parameters:

key - value to be used as key

value - value to be stored

sizeEstimate - estimated size

Returns:

the old object, that was replaced if present. Otherwise null.

get

Object get(Object key)

clear

void clear()

Removes all mappings from a map (optional operation).

Throws:

UnsupportedOperationException - if clear() is not supported by the map.

remove

Object remove(Object key)

Parameters:

key - the key of the to be removed object

Returns:

the removed object, if present. Otherwise null.