com.tangosol.net.cache
Class CacheLoaderCacheStore

java.lang.Object
  com.tangosol.util.Base
      com.tangosol.net.cache.AbstractCacheLoader
          com.tangosol.net.cache.AbstractCacheStore
              com.tangosol.net.cache.CacheLoaderCacheStore

All Implemented Interfaces:

CacheLoader, CacheStore

Direct Known Subclasses:

CacheLoaderCacheStore.Iterable

public class CacheLoaderCacheStore
extends AbstractCacheStore

A read-only CacheStore that wraps a CacheLoader.

Since:

Coherence 3.2

Author:

cp 2006.09.06

Nested Class Summary

static class

CacheLoaderCacheStore.Iterable An extension to the CacheLoaderCacheStore that implements the IterableCacheLoader interface.

Field Summary

protected CacheLoader

m_loader The CacheLoader to delegate to.

Constructor Summary

CacheLoaderCacheStore(CacheLoader loader)
The CacheLoader to delegate to.

Method Summary

Object	load(Object oKey) Return the value associated with the specified key, or null if the key does not have an associated value in the underlying store.
Map	loadAll(Collection colKeys) Return the values associated with each the specified keys in the passed collection.
static CacheStore	wrapCacheLoader(CacheLoader loader) Create a CacheStore wrapper for the passed CacheLoader.

Methods inherited from class com.tangosol.net.cache.AbstractCacheStore

erase, eraseAll, store, storeAll

Field Detail

m_loader

protected CacheLoader m_loader

The CacheLoader to delegate to.

Constructor Detail

CacheLoaderCacheStore

public CacheLoaderCacheStore(CacheLoader loader)

The CacheLoader to delegate to.

Method Detail

wrapCacheLoader

public static CacheStore wrapCacheLoader(CacheLoader loader)

Create a CacheStore wrapper for the passed CacheLoader. Note that the returned CacheStore will implement the IterableCacheLoader interface if and only if the passed CacheLoader implements it.

Parameters:

loader - the CacheLoader to wrap

Returns:

a CacheStore

load

public Object load(Object oKey)

Return the value associated with the specified key, or null if the key does not have an associated value in the underlying store.

Specified by:

load in interface CacheLoader

Specified by:

load in class AbstractCacheLoader

Parameters:

oKey - key whose associated value is to be returned

Returns:

the value associated with the specified key, or null if no value is available for that key

loadAll

public Map loadAll(Collection colKeys)

Return the values associated with each the specified keys in the passed collection. If a key does not have an associated value in the underlying store, then the return map will not have an entry for that key.

Specified by:

loadAll in interface CacheLoader

Overrides:

loadAll in class AbstractCacheLoader

Parameters:

colKeys - a collection of keys to load

Returns:

a Map of keys to associated values for the specified keys