001    /*
002     * Licensed to the Apache Software Foundation (ASF) under one or more
003     * contributor license agreements.  See the NOTICE file distributed with
004     * this work for additional information regarding copyright ownership.
005     * The ASF licenses this file to You under the Apache License, Version 2.0
006     * (the "License"); you may not use this file except in compliance with
007     * the License.  You may obtain a copy of the License at
008     *
009     *      http://www.apache.org/licenses/LICENSE-2.0
010     *
011     * Unless required by applicable law or agreed to in writing, software
012     * distributed under the License is distributed on an "AS IS" BASIS,
013     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014     * See the License for the specific language governing permissions and
015     * limitations under the License.
016     */
017    package org.apache.commons.jexl2;
018    
019    /**
020     * Interface for objects carrying information usefull to debugging.
021     * @since 1.0
022     */
023    public interface JexlInfo {
024        /**
025         * Formats this information for debugging purpose.
026         * @return a human readable string.
027         */
028        String debugString();
029        /**
030         * Gets the underlying debugging information.
031         * @return a debug info instance
032         * @since 2.1
033         */
034        DebugInfo debugInfo();
035    }