/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.
 */
module hunt.shiro.authz.permission.RolePermissionResolver;

import hunt.shiro.authz.permission.Permission;

import hunt.collection;

/**
 * A RolePermissionResolver resolves a string value and converts it into a Collection of
 * {@link hunt.shiro.authz.Permission} instances.
 * <p/>
 * In some cases a {@link hunt.shiro.realm.Realm} my only be able to return a list of roles.  This
 * component allows an application to resolve the roles into permissions.
 *
 */
interface RolePermissionResolver {

    /**
     * Resolves a Collection of Permissions based on the given string representation.
     *
     * @param roleString the string representation of a role name to resolve.
     * @return a Collection of Permissions based on the given string representation.
     */
    Collection!(Permission) resolvePermissionsInRole(string roleString);

}