spring package-info 源码
spring package-info 代码
文件路径：/spring-tx/src/main/java/org/springframework/dao/package-info.java
/**
* Exception hierarchy enabling sophisticated error handling independent
* of the data access approach in use. For example, when DAOs and data
* access frameworks use the exceptions in this package (and custom
* subclasses), calling code can detect and handle common problems such
* as deadlocks without being tied to a particular data access strategy,
* such as JDBC.
*
* <p>All these exceptions are unchecked, meaning that calling code can
* leave them uncaught and treat all data access exceptions as fatal.
*
* <p>The classes in this package are discussed in Chapter 9 of
* <a href="https://www.amazon.com/exec/obidos/tg/detail/-/0764543857/">Expert One-On-One J2EE Design and Development</a>
* by Rod Johnson (Wrox, 2002).
*/
@NonNullApi
@NonNullFields
package org.springframework.dao;
import org.springframework.lang.NonNullApi;
import org.springframework.lang.NonNullFields;
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