/*

  * This file is part of dependency-check-core.

  *

  * Licensed under the Apache License, Version 2.0 (the "License");

  * you may not use this file except in compliance with the License.

  * You may obtain a copy of the License at

  *

  *     http://www.apache.org/licenses/LICENSE-2.0

  *

  * Unless required by applicable law or agreed to in writing, software

  * distributed under the License is distributed on an "AS IS" BASIS,

  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

  * See the License for the specific language governing permissions and

  * limitations under the License.

  *

  * Copyright (c) 2012 Jeremy Long. All Rights Reserved.

  */

 package org.owasp.dependencycheck.data.update;

 import org.owasp.dependencycheck.data.update.exception.UpdateException;

 /**

  * Defines a data source who's data is retrieved from the Internet. This data can be downloaded and the local cache

  * updated.

  *

  * @author Jeremy Long

  */

 public interface CachedWebDataSource {

     /**

      * Determines if an update to the current data store is needed, if it is the new data is downloaded from the

      * Internet and imported into the current cached data store.

      *

      * @throws UpdateException is thrown if there is an exception downloading the data or updating the data store.

      */

     void update() throws UpdateException;

 }