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 */
017package org.apache.activemq.store.jdbc.adapter;
018
019import java.sql.Blob;
020import java.sql.ResultSet;
021import java.sql.SQLException;
022
023import org.apache.activemq.store.jdbc.Statements;
024
025/**
026 * Implements all the default JDBC operations that are used
027 * by the JDBCPersistenceAdapter.
028 * <p/>
029 * Subclassing is encouraged to override the default
030 * implementation of methods to account for differences
031 * in JDBC Driver implementations.
032 * <p/>
033 *
034 * @org.apache.xbean.XBean element="oracleJDBCAdapter"
035 *
036 * 
037 */
038public class OracleJDBCAdapter extends DefaultJDBCAdapter {
039
040    @Override
041    public void setStatements(Statements statements) {
042        statements.setLongDataType("NUMBER");
043        statements.setSequenceDataType("NUMBER");
044        super.setStatements(statements);
045    }
046
047    @Override
048    public String limitQuery(String query) {
049        return "SELECT * FROM (" + query + ") WHERE ROWNUM <= " + getMaxRows();
050    }
051}