001/* 002 * HA-JDBC: High-Availability JDBC 003 * Copyright (C) 2012 Paul Ferraro 004 * 005 * This program is free software: you can redistribute it and/or modify 006 * it under the terms of the GNU Lesser General Public License as published by 007 * the Free Software Foundation, either version 3 of the License, or 008 * (at your option) any later version. 009 * 010 * This program is distributed in the hope that it will be useful, 011 * but WITHOUT ANY WARRANTY; without even the implied warranty of 012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 013 * GNU Lesser General Public License for more details. 014 * 015 * You should have received a copy of the GNU Lesser General Public License 016 * along with this program. If not, see <http://www.gnu.org/licenses/>. 017 */ 018package net.sf.hajdbc.cache.lazy; 019 020import java.sql.Connection; 021import java.sql.DatabaseMetaData; 022import java.sql.SQLException; 023 024import net.sf.hajdbc.cache.DatabaseMetaDataProvider; 025 026/** 027 * @author Paul Ferraro 028 * 029 */ 030public class LazyDatabaseMetaDataProvider implements DatabaseMetaDataProvider 031{ 032 private final ThreadLocal<Connection> threadLocal = new ThreadLocal<Connection>(); 033 034 public LazyDatabaseMetaDataProvider(DatabaseMetaData metaData) throws SQLException 035 { 036 this.setConnection(metaData.getConnection()); 037 } 038 039 public void setConnection(Connection connection) 040 { 041 this.threadLocal.set(connection); 042 } 043 044 /** 045 * @see net.sf.hajdbc.cache.DatabaseMetaDataProvider#getDatabaseMetaData() 046 */ 047 @Override 048 public DatabaseMetaData getDatabaseMetaData() throws SQLException 049 { 050 return this.threadLocal.get().getMetaData(); 051 } 052}