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.activemq.store.jdbc.adapter;
018    
019    import java.sql.Blob;
020    import java.sql.ResultSet;
021    import java.sql.SQLException;
022    import org.apache.activemq.store.jdbc.Statements;
023    
024    /**
025     * Implements all the default JDBC operations that are used
026     * by the JDBCPersistenceAdapter.
027     * <p/>
028     * Subclassing is encouraged to override the default
029     * implementation of methods to account for differences
030     * in JDBC Driver implementations.
031     * <p/>
032     * The JDBCAdapter inserts and extracts BLOB data using the
033     * getBytes()/setBytes() operations.
034     * <p/>
035     * The databases/JDBC drivers that use this adapter are:
036     * <ul>
037     * <li></li>
038     * </ul>
039     *
040     * @org.apache.xbean.XBean element="oracleBlobJDBCAdapter"
041     *
042     * 
043     */
044    public class OracleBlobJDBCAdapter extends BlobJDBCAdapter {
045    
046        @Override
047        public void setStatements(Statements statements) {
048            statements.setLongDataType("NUMBER");
049            statements.setSequenceDataType("NUMBER");
050    
051            String addMessageStatement = "INSERT INTO "
052                + statements.getFullMessageTableName()
053                + "(ID, MSGID_PROD, MSGID_SEQ, CONTAINER, EXPIRATION, PRIORITY, MSG) VALUES (?, ?, ?, ?, ?, ?, empty_blob())";
054            statements.setAddMessageStatement(addMessageStatement);
055    
056            String findMessageByIdStatement = "SELECT MSG FROM " +
057                    statements.getFullMessageTableName() + " WHERE ID=? FOR UPDATE";
058            statements.setFindMessageByIdStatement(findMessageByIdStatement);
059    
060            super.setStatements(statements);
061        }
062    
063        @Override
064        protected byte[] getBinaryData(ResultSet rs, int index) throws SQLException {
065            // Get as a BLOB
066            Blob aBlob = rs.getBlob(index);
067            if (aBlob == null) {
068                return null;
069            }
070            return aBlob.getBytes(1, (int) aBlob.length());
071        }
072    }