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 022import org.springframework.lang.Nullable; 023 024/** 025 * DB2 specific implementation for the {@link CallMetaDataProvider} interface. 026 * This class is intended for internal use by the Simple JDBC classes. 027 * 028 * @author Thomas Risberg 029 * @author Juergen Hoeller 030 * @since 2.5 031 */ 032public class Db2CallMetaDataProvider extends GenericCallMetaDataProvider { 033 034 public Db2CallMetaDataProvider(DatabaseMetaData databaseMetaData) throws SQLException { 035 super(databaseMetaData); 036 } 037 038 039 @Override 040 public void initializeWithMetaData(DatabaseMetaData databaseMetaData) throws SQLException { 041 try { 042 setSupportsCatalogsInProcedureCalls(databaseMetaData.supportsCatalogsInProcedureCalls()); 043 } 044 catch (SQLException ex) { 045 logger.debug("Error retrieving 'DatabaseMetaData.supportsCatalogsInProcedureCalls' - " + ex.getMessage()); 046 } 047 try { 048 setSupportsSchemasInProcedureCalls(databaseMetaData.supportsSchemasInProcedureCalls()); 049 } 050 catch (SQLException ex) { 051 logger.debug("Error retrieving 'DatabaseMetaData.supportsSchemasInProcedureCalls' - " + ex.getMessage()); 052 } 053 try { 054 setStoresUpperCaseIdentifiers(databaseMetaData.storesUpperCaseIdentifiers()); 055 } 056 catch (SQLException ex) { 057 logger.debug("Error retrieving 'DatabaseMetaData.storesUpperCaseIdentifiers' - " + ex.getMessage()); 058 } 059 try { 060 setStoresLowerCaseIdentifiers(databaseMetaData.storesLowerCaseIdentifiers()); 061 } 062 catch (SQLException ex) { 063 logger.debug("Error retrieving 'DatabaseMetaData.storesLowerCaseIdentifiers' - " + ex.getMessage()); 064 } 065 } 066 067 @Override 068 @Nullable 069 public String metaDataSchemaNameToUse(@Nullable String schemaName) { 070 if (schemaName != null) { 071 return super.metaDataSchemaNameToUse(schemaName); 072 } 073 074 // Use current user schema if no schema specified... 075 String userName = getUserName(); 076 return (userName != null ? userName.toUpperCase() : null); 077 } 078 079}