org.teiid.cache
Interface Cache<K,V>

All Known Implementing Classes:

DefaultCache

public interface Cache<K,V>

Abstraction over cache providers

Nested Class Summary

static class

Cache.Type

Method Summary

void	clear() Removes all the keys and their values from the Cache
V	get(K key) Retrieves the value for the given Key
java.lang.String	getName() Name of the cache node
java.util.Set<K>	keys() Return all the keys
V	put(K key, V value, java.lang.Long ttl) Associates the specified value with the specified key this cache.
V	remove(K key) Removes the value for this key from a Cache.
int	size() Size of the cache

Method Detail

get

V get(K key)

Retrieves the value for the given Key

Parameters:

key - key under which value is to be retrieved.

Returns:

returns data held under specified key in cache

put

V put(K key,
      V value,
      java.lang.Long ttl)

Associates the specified value with the specified key 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.

value - value to be associated with the specified key.

ttl - the time for this entry to live

Returns:

previous value associated with specified key, or null if there was no mapping for key. A null return can also indicate that the key previously associated null with the specified key, if the implementation supports null values.

remove

V remove(K key)

Removes the value for this key from a Cache. Returns the value to which the Key previously associated , or null if the Key contained no mapping.

Parameters:

key - key whose mapping is to be removed

Returns:

previous value associated with specified Node's key

size

int size()

Size of the cache

Returns:

number of items in this cache

clear

void clear()

Removes all the keys and their values from the Cache

getName

java.lang.String getName()

Name of the cache node

Returns:

keys

java.util.Set<K> keys()

Return all the keys

Returns: