| /******************************************************************************* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| *******************************************************************************/ |
| package org.ofbiz.entity.jdbc; |
| |
| import java.lang.reflect.Method; |
| import java.sql.PreparedStatement; |
| import java.sql.ResultSet; |
| import java.sql.SQLException; |
| import java.sql.Statement; |
| |
| import org.ofbiz.entity.transaction.GenericTransactionException; |
| import org.ofbiz.entity.transaction.TransactionUtil; |
| |
| |
| public class CursorStatement extends AbstractCursorHandler { |
| |
| protected ResultSet currentResultSet; |
| protected Statement stmt; |
| protected boolean beganTransaction; |
| protected boolean autoCommit; |
| |
| protected CursorStatement(Statement stmt, String cursorName, int fetchSize) throws GenericTransactionException, SQLException { |
| super(cursorName, fetchSize); |
| this.stmt = stmt; |
| beganTransaction = TransactionUtil.begin(); |
| autoCommit = stmt.getConnection().getAutoCommit(); |
| stmt.getConnection().setAutoCommit(false); |
| System.err.println("beganTransaction=" + beganTransaction + ", autoCommit=" + autoCommit); |
| } |
| |
| public Object invoke(Object proxy, Method method, Object[] args) throws Throwable { |
| if ("close".equals(method.getName())) { |
| stmt.getConnection().setAutoCommit(autoCommit); |
| TransactionUtil.commit(beganTransaction); |
| stmt.close(); |
| return null; |
| } else if ("execute".equals(method.getName())) { |
| } else if ("executeQuery".equals(method.getName()) && args == null) { |
| PreparedStatement pstmt = (PreparedStatement) stmt; |
| pstmt.executeUpdate(); |
| currentResultSet = CursorResultSet.newCursorResultSet(stmt, cursorName, fetchSize); |
| return currentResultSet; |
| } else if ("executeQuery".equals(method.getName()) && args != null) { |
| args[0] = "DECLARE " + cursorName + " CURSOR FOR " + args[0]; |
| System.err.println("query=" + args[0]); |
| if (stmt.execute((String) args[0])) { |
| throw new SQLException("DECLARE returned a ResultSet"); |
| } |
| currentResultSet = CursorResultSet.newCursorResultSet(stmt, cursorName, fetchSize); |
| return currentResultSet; |
| } else if ("getMoreResults".equals(method.getName())) { |
| boolean hasMoreResults = stmt.getMoreResults(); |
| if (hasMoreResults) { |
| currentResultSet = stmt.getResultSet(); |
| } else { |
| currentResultSet = null; |
| } |
| return hasMoreResults ? Boolean.TRUE : Boolean.FALSE; |
| } else if ("getResultSet".equals(method.getName())) { |
| return currentResultSet; |
| } else if ("getCursorName".equals(method.getName())) { |
| return getCursorName(); |
| } else if ("setCursorName".equals(method.getName())) { |
| setCursorName((String) args[0]); |
| } else if ("getFetchSize".equals(method.getName())) { |
| return Integer.valueOf(getFetchSize()); |
| } else if ("setFetchSize".equals(method.getName())) { |
| setFetchSize(((Integer) args[0]).intValue()); |
| } |
| return super.invoke(stmt, proxy, method, args); |
| } |
| |
| public static Statement newCursorStatement(Statement stmt, String cursorName, int fetchSize) throws Exception { |
| return newHandler(new CursorStatement(stmt, cursorName, fetchSize), Statement.class); |
| } |
| |
| public static PreparedStatement newCursorPreparedStatement(PreparedStatement pstmt, String cursorName, int fetchSize) throws Exception { |
| return newHandler(new CursorStatement(pstmt, cursorName, fetchSize), PreparedStatement.class); |
| } |
| } |