Using Your Own Policy

/**
* FIFO Eviction Policy Command
*/
component extends="cachebox.system.cache.policies.AbstractEvictionPolicy"{

    /**
    * Constructor
    * @cacheProvider The associated cache provider of type: cachebox.system.cache.ICacheProvider
    */
    FIFO function init( required cacheProvider ){
        super.init( arguments.cacheProvider );

        return this;
    }

    /**
    * Execute the policy
    */
    function execute(){
        var index       = "";

        // Get searchable index
        try{
            index = getAssociatedCache()
                .getObjectStore()
                .getIndexer()
                .getSortedKeys( "hits", "numeric", "asc" );

            // process evictions via the abstract class
            processEvictions( index );
        }
        catch(Any e){
            getLogger().error("Error sorting via store indexer #e.message# #e.detail# #e.stackTrace#.");
        }
    }

}

<---  processEvictions --->
<cffunction name="processEvictions" output="false" access="private" returntype="void" hint="Abstract processing of evictions">
    <cfargument name="index" type="array" required="true" hint="The array of metadata keys used for processing evictions"/>
    <cfscript>
        var oCacheManager   = getAssociatedCache();
        var indexer         = oCacheManager.getObjectStore().getIndexer();
        var indexLength     = arrayLen(arguments.index);
        var x               = 1;
        var md              = "";
        var evictCount      = oCacheManager.getConfiguration().evictCount;
        var evictedCounter  = 0;

        //Loop Through Metadata
        for (x=1; x lte indexLength; x=x+1){

            // verify object in indexer
            if( NOT indexer.objectExists( arguments.index[x] ) ){
                continue;
            }
            md = indexer.getObjectMetadata( arguments.index[x] );

            // Evict if not already marked for eviction or an eternal object.
            if( md.timeout gt 0 AND NOT md.isExpired ){

                // Expire Object
                oCacheManager.expireKey( arguments.index[x] );

                // Record Eviction
                oCacheManager.getStats().evictionHit();
                evictedCounter++;

                // Can we break or keep on evicting
                if( evictedCounter GTE evictCount ){
                    break;
                }
            }
        }//end for loop
    </cfscript>
</cffunction>

defaultCache = {
    objectDefaultTimeout = 120,
    objectDefaultLastAccessTimeout = 30,
    useLastAccessTimeouts = true,
    reapFrequency = 2,
    freeMemoryPercentageThreshold = 0,

    evictionPolicy = "myPath.policies.MyPolicy",

    evictCount = 1,
    maxObjects = 300,
    objectStore = "ConcurrentSoftReferenceStore",
    coldboxEnabled = false
}