001/* 002 * Copyright 2002-2018 the original author or authors. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * https://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017package org.springframework.jdbc.core.metadata; 018 019import java.sql.DatabaseMetaData; 020import java.sql.SQLException; 021 022/** 023 * The Derby specific implementation of {@link TableMetaDataProvider}. 024 * Overrides the Derby meta-data info regarding retrieving generated keys. 025 * 026 * @author Thomas Risberg 027 * @since 3.0 028 */ 029public class DerbyTableMetaDataProvider extends GenericTableMetaDataProvider { 030 031 private boolean supportsGeneratedKeysOverride = false; 032 033 034 public DerbyTableMetaDataProvider(DatabaseMetaData databaseMetaData) throws SQLException { 035 super(databaseMetaData); 036 } 037 038 039 @Override 040 public void initializeWithMetaData(DatabaseMetaData databaseMetaData) throws SQLException { 041 super.initializeWithMetaData(databaseMetaData); 042 if (!databaseMetaData.supportsGetGeneratedKeys()) { 043 if (logger.isWarnEnabled()) { 044 logger.warn("Overriding supportsGetGeneratedKeys from DatabaseMetaData to 'true'; it was reported as " + 045 "'false' by " + databaseMetaData.getDriverName() + " " + databaseMetaData.getDriverVersion()); 046 } 047 this.supportsGeneratedKeysOverride = true; 048 } 049 } 050 051 @Override 052 public boolean isGetGeneratedKeysSupported() { 053 return (super.isGetGeneratedKeysSupported() || this.supportsGeneratedKeysOverride); 054 } 055 056}