Examples of javax.util.jcache.CacheLoader.load()

javax.util.jcache.CacheLoader.load()

this method must be implemented by the user to load objects into the cache. This will typically be a database-call or directory call, or extracting information from a file. This method returns a reference to the newly loaded object. If the object being loaded is a StreamAccess object or a disk object, the OutputStream object created by the createStream method, or the File created by the createDiskObject method should be returned. @param handle is supplied by the cache and is used by the netSearch andsetAttributes methods to access information about the object being searched for. @param arguments is the object pass to the cache in the get method. @return a reference to the newly created object.

        if (objHandle.needsLoading(arguments)) {
            Attributes attribs = objHandle.getAttributes();
            CacheLoader loader = attribs.getLoader();
            Object retrievedObject;
            try {
                retrievedObject = loader.load(objHandle, arguments);
                if (retrievedObject == null) {
                    throw new ObjectNotFoundException("The returned object from the CacheLoader " + loader.getClass().getName() + " was null.");
                }
                if (retrievedObject instanceof CacheOutputStream) {
                    /*

                throw new ObjectNotFoundException("The object has no CacheLoader associated with it.");
            }
            Runnable runnable = new Runnable() {
                public void run() {
                    try {
                        loader.load(obj, arguments);
                    } catch (CacheException e) {
                        if (logger != null) {
                            logger.log("The object was not found in the cache.", e);
                        }
                    }

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