spring Db2CallMetaDataProvider 源码
spring Db2CallMetaDataProvider 代码
文件路径：/spring-jdbc/src/main/java/org/springframework/jdbc/core/metadata/Db2CallMetaDataProvider.java
/*
* Copyright 2002-2018 the original author or authors.
*
* Licensed 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
*
* https://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.springframework.jdbc.core.metadata;
import java.sql.DatabaseMetaData;
import java.sql.SQLException;
import org.springframework.lang.Nullable;
/**
* DB2 specific implementation for the {@link CallMetaDataProvider} interface.
* This class is intended for internal use by the Simple JDBC classes.
*
* @author Thomas Risberg
* @author Juergen Hoeller
* @since 2.5
*/
public class Db2CallMetaDataProvider extends GenericCallMetaDataProvider {
public Db2CallMetaDataProvider(DatabaseMetaData databaseMetaData) throws SQLException {
super(databaseMetaData);
}
@Override
public void initializeWithMetaData(DatabaseMetaData databaseMetaData) throws SQLException {
try {
setSupportsCatalogsInProcedureCalls(databaseMetaData.supportsCatalogsInProcedureCalls());
}
catch (SQLException ex) {
logger.debug("Error retrieving 'DatabaseMetaData.supportsCatalogsInProcedureCalls' - " + ex.getMessage());
}
try {
setSupportsSchemasInProcedureCalls(databaseMetaData.supportsSchemasInProcedureCalls());
}
catch (SQLException ex) {
logger.debug("Error retrieving 'DatabaseMetaData.supportsSchemasInProcedureCalls' - " + ex.getMessage());
}
try {
setStoresUpperCaseIdentifiers(databaseMetaData.storesUpperCaseIdentifiers());
}
catch (SQLException ex) {
logger.debug("Error retrieving 'DatabaseMetaData.storesUpperCaseIdentifiers' - " + ex.getMessage());
}
try {
setStoresLowerCaseIdentifiers(databaseMetaData.storesLowerCaseIdentifiers());
}
catch (SQLException ex) {
logger.debug("Error retrieving 'DatabaseMetaData.storesLowerCaseIdentifiers' - " + ex.getMessage());
}
}
@Override
@Nullable
public String metaDataSchemaNameToUse(@Nullable String schemaName) {
if (schemaName != null) {
return super.metaDataSchemaNameToUse(schemaName);
}
// Use current user schema if no schema specified...
String userName = getUserName();
return (userName != null ? userName.toUpperCase() : null);
}
}
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