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.language.simple.ast;
018    
019    import org.apache.camel.Expression;
020    import org.apache.camel.language.simple.types.SimpleParserException;
021    import org.apache.camel.language.simple.types.SimpleToken;
022    
023    /**
024     * Represents a node in the Simple AST
025     */
026    public interface SimpleNode {
027    
028        /**
029         * Gets the token by which this model was based upon
030         *
031         * @return the token
032         */
033        SimpleToken getToken();
034    
035        /**
036         * Creates a Camel {@link Expression} based on this model.
037         *
038         * @param expression the input string
039         * @return the created {@link Expression}
040         * @throws org.apache.camel.language.simple.types.SimpleParserException
041         *          should be thrown if error parsing the model
042         */
043        Expression createExpression(String expression) throws SimpleParserException;
044    
045    }