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.sql;
018    
019    import javax.xml.namespace.QName;
020    
021    import org.apache.camel.Expression;
022    import org.apache.camel.IsSingleton;
023    import org.apache.camel.Predicate;
024    import org.apache.camel.RuntimeCamelException;
025    import org.apache.camel.builder.sql.SqlBuilder;
026    import org.apache.camel.builder.xml.XPathBuilder;
027    import org.apache.camel.spi.Language;
028    import org.josql.QueryParseException;
029    
030    /**
031     * XPath language.
032     *
033     * @version $Revision: 980681 $
034     */
035    public class SqlLanguage implements Language, IsSingleton {
036       
037        public Predicate createPredicate(String expression) {
038            try {
039                SqlBuilder builder = SqlBuilder.sql(expression);
040                return builder;
041            } catch (QueryParseException e) {
042                RuntimeException exception = new RuntimeCamelException("Canont create the SqlBuilder.", e);
043                throw exception;
044            }
045            
046        }
047    
048        public Expression createExpression(String expression) {
049            try {
050                SqlBuilder builder = SqlBuilder.sql(expression);
051                return builder;
052            } catch (QueryParseException e) {
053                RuntimeException exception = new RuntimeCamelException("Canont create the SqlBuilder.", e);
054                throw exception;
055            }
056        }
057        
058        public boolean isSingleton() {
059            return true;
060        }
061    }