https://github.com/spring-projects/spring-framework: Spring JDBC (Spring IO)
  • Juergen Hoeller 
The classes in this package represent RDBMS queries, updates,
and stored procedures as threadsafe, reusable objects. This approach
is modelled by JDO, although of course objects returned by queries
are "disconnected" from the database.

This higher level of JDBC abstraction depends on the lower-level abstraction in the org.springframework.jdbc.core package. Exceptions thrown are as in the org.springframework.dao package, meaning that code using this package does not need to implement JDBC or RDBMS-specific error handling. 
This package and related packages are discussed in Chapter 9 of
Expert One-On-One J2EE Design and Development
by Rod Johnson (Wrox, 2002).

/**
 * The classes in this package represent RDBMS queries, updates,
 * and stored procedures as threadsafe, reusable objects. This approach
 * is modelled by JDO, although of course objects returned by queries
 * are "disconnected" from the database.
 *
 * <p>This higher level of JDBC abstraction depends on the lower-level
 * abstraction in the {@code org.springframework.jdbc.core} package.
 * Exceptions thrown are as in the {@code org.springframework.dao} package,
 * meaning that code using this package does not need to implement JDBC or
 * RDBMS-specific error handling.
 *
 * <p>This package and related packages 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.jdbc.object;

import org.springframework.lang.NonNullApi;
import org.springframework.lang.NonNullFields;