at.molindo.wicketutils.utils
Class RequestCycleCache

java.lang.Object
  at.molindo.wicketutils.utils.RequestCycleCache

public class RequestCycleCache
extends Object

Utility methods for (ab)using RequestCycle.getMetaData(MetaDataKey) and RequestCycle.setMetaData(MetaDataKey, Object) as request-scope cache.

Author:

stf@molindo.at

Nested Class Summary

static interface

RequestCycleCache.Function<K,V>

Method Summary

static <K,V> V	get(org.apache.wicket.MetaDataKey<at.molindo.utils.data.Pair<K,V>> metaDataKey, K key)
static <K,V> V	get(org.apache.wicket.RequestCycle cycle, org.apache.wicket.MetaDataKey<at.molindo.utils.data.Pair<K,V>> metaDataKey, K key)
static <K,V> V	getOrCreate(org.apache.wicket.MetaDataKey<at.molindo.utils.data.Pair<K,V>> metaDataKey, K key, RequestCycleCache.Function<K,V> function) tries to get value for key from cache or invokes function to generate it from key.
static <K,V> V	getOrCreate(org.apache.wicket.RequestCycle cycle, org.apache.wicket.MetaDataKey<at.molindo.utils.data.Pair<K,V>> metaDataKey, K key, RequestCycleCache.Function<K,V> function) tries to get value for key from cache or invokes function to generate it from key.
static <K,V> void	put(org.apache.wicket.MetaDataKey<at.molindo.utils.data.Pair<K,V>> metaDataKey, K key, V value)
static <K,V> void	put(org.apache.wicket.RequestCycle cycle, org.apache.wicket.MetaDataKey<at.molindo.utils.data.Pair<K,V>> metaDataKey, K key, V value)
static <K,V> void	remove(org.apache.wicket.MetaDataKey<at.molindo.utils.data.Pair<K,V>> metaDataKey)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

put

public static <K,V> void put(org.apache.wicket.MetaDataKey<at.molindo.utils.data.Pair<K,V>> metaDataKey,
                             K key,
                             V value)

put

public static <K,V> void put(org.apache.wicket.RequestCycle cycle,
                             org.apache.wicket.MetaDataKey<at.molindo.utils.data.Pair<K,V>> metaDataKey,
                             K key,
                             V value)

get

public static <K,V> V get(org.apache.wicket.MetaDataKey<at.molindo.utils.data.Pair<K,V>> metaDataKey,
                          K key)

get

public static <K,V> V get(org.apache.wicket.RequestCycle cycle,
                          org.apache.wicket.MetaDataKey<at.molindo.utils.data.Pair<K,V>> metaDataKey,
                          K key)

getOrCreate

public static <K,V> V getOrCreate(org.apache.wicket.MetaDataKey<at.molindo.utils.data.Pair<K,V>> metaDataKey,
                                  K key,
                                  RequestCycleCache.Function<K,V> function)

tries to get value for key from cache or invokes function to generate it from key.

getOrCreate

public static <K,V> V getOrCreate(org.apache.wicket.RequestCycle cycle,
                                  org.apache.wicket.MetaDataKey<at.molindo.utils.data.Pair<K,V>> metaDataKey,
                                  K key,
                                  RequestCycleCache.Function<K,V> function)

tries to get value for key from cache or invokes function to generate it from key.

remove

public static <K,V> void remove(org.apache.wicket.MetaDataKey<at.molindo.utils.data.Pair<K,V>> metaDataKey)