/wheels/cache/strategy/Age.cfc

<cfcomponent extends="BaseStrategy" implements="AbstractStrategy" output="false">



	<cffunction name="getExpired" access="public" output="false" returntype="array">

		<cfargument name="keys" type="array" required="true">

		<cfargument name="storage" type="any" required="true">

		<cfargument name="currentTime" type="date" required="true">

		<cfscript>

			var loc = {};

			loc.expiredKeys = [];

			if ((variables.$instance.cacheCullPercentage gt 0 

					&& variables.$instance.cacheLastCulledAt < DateAdd("n", -variables.$instance.cacheCullInterval, arguments.currentTime) 

					&& arguments.storage.count() gte variables.$instance.maximumItemsToCache)

				|| ArrayLen(arguments.keys) == 1)

			{

				// cache is full so flush out expired items from this cache to make more room if possible

				for (loc.i = 1; loc.i lte ArrayLen(arguments.keys); loc.i++)

				{

					loc.key = arguments.keys[loc.i];

					loc.cacheItem = arguments.storage.get(loc.key);

					

					if (arguments.currentTime gt loc.cacheItem.expiresAt)

					{

						ArrayAppend(loc.expiredKeys, loc.key);

						if (variables.$instance.cacheCullPercentage < 100)

						{

							loc.percentageDeleted = (ArrayLen(loc.expiredKeys) / ArrayLen(arguments.keys)) * 100;

							if (loc.percentageDeleted gte variables.$instance.cacheCullPercentage)

								break;

						}

					}

				}

				variables.$instance.cacheLastCulledAt = arguments.currentTime;				

			}

		</cfscript>

		<cfreturn loc.expiredKeys>

	</cffunction>

	

	<cffunction name="checkExpired" access="public" output="false" returntype="array">

		<cfargument name="value" type="struct" required="true">

		<cfargument name="storage" type="AbstractStorage" required="true">

	</cffunction>



</cfcomponent>