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.camel.spi;
018    
019    import org.apache.camel.Expression;
020    import org.apache.camel.Predicate;
021    
022    /**
023     * Represents a language to be used for {@link Expression} or {@link Predicate} instances
024     *
025     * @version 
026     */
027    public interface Language {
028    
029        /**
030         * Creates a predicate based on the given string input
031         *
032         * @param expression  the expression
033         * @return the created predicate
034         */
035        Predicate createPredicate(String expression);
036    
037        /**
038         * Creates an expression based on the given string input
039         *
040         * @param expression  the expression as a string input
041         * @return the created expression
042         */
043        Expression createExpression(String expression);
044    }