package org.apache.onami.configuration.variables;

 /*

  * 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.

  */

 import java.util.Map;

 /**

  * Resolve what should be resolved against a configuration.

  */

 public interface Resolver

 {

     /**

      * @param data

      * @return Resolved value

      */

     String resolve( Map<String, String> data );

     /**

      * @return False if it's not worth to call {@link #resolve(Map)}.

      */

     boolean needsResolving();

 }