Package com.helger.commons.cache

Interface ICache<KEYTYPE,VALUETYPE>

Type Parameters:

KEYTYPE - Cache key type.

VALUETYPE - Cache value type.

All Superinterfaces:

IHasName, IHasSize

All Known Subinterfaces:

IMutableCache<KEYTYPE,VALUETYPE>

All Known Implementing Classes:

Cache, DateTimeFormatterCache, MappedCache, PDTFormatter.LocalizedDateFormatCache, RegExCache

public interface ICache<KEYTYPE,VALUETYPE>
extends IHasName, IHasSize

Read-only interface for a very simple Map-like cache.

Author:

Philip Helger

Method Summary

Modifier and Type	Method	Description
VALUETYPE	getFromCache(KEYTYPE aKey)	Get the cached value associated with the passed key.

Methods inherited from interface com.helger.commons.name.IHasName

getName

Methods inherited from interface com.helger.commons.lang.IHasSize

isEmpty, isNotEmpty, size

Method Details

getFromCache

VALUETYPE getFromCache(KEYTYPE aKey)

Get the cached value associated with the passed key. If the value is not in the cache, it might be automatically retrieved from a respective provider.

Parameters:

aKey - The key to be looked up. May be nullable or not - depends upon the implementation.

Returns:

null if no such value is in the cache.