spring DatabasePopulator 源码
spring DatabasePopulator 代码
文件路径：/spring-jdbc/src/main/java/org/springframework/jdbc/datasource/init/DatabasePopulator.java
/*
* Copyright 2002-2022 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.datasource.init;
import java.sql.Connection;
import java.sql.SQLException;
/**
* Strategy used to populate, initialize, or clean up a database.
*
* @author Keith Donald
* @author Sam Brannen
* @since 3.0
* @see ResourceDatabasePopulator
* @see DatabasePopulatorUtils
* @see DataSourceInitializer
*/
@FunctionalInterface
public interface DatabasePopulator {
/**
* Populate, initialize, or clean up the database using the provided JDBC
* connection.
* <p><strong>Warning</strong>: Concrete implementations should not close
* the provided {@link Connection}.
* <p>Concrete implementations <em>may</em> throw an {@link SQLException} if
* an error is encountered but are <em>strongly encouraged</em> to throw a
* specific {@link ScriptException} instead. For example, Spring's
* {@link ResourceDatabasePopulator} and {@link DatabasePopulatorUtils} wrap
* all {@code SQLExceptions} in {@code ScriptExceptions}.
* @param connection the JDBC connection to use; already configured and
* ready to use; never {@code null}
* @throws SQLException if an unrecoverable data access exception occurs
* while interacting with the database
* @throws ScriptException in all other error cases
* @see DatabasePopulatorUtils#execute
*/
void populate(Connection connection) throws SQLException, ScriptException;
}
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