jdbctemplate and optimistic locking

Question

In the project I'm in Hibernate and Spring jdbctemplate are mixed. I added optimistic locking. Hibernate works great with versioning but now I have to tansform all this jdbctemplate code to use versioning too.

Is there something like LockingJdbcTemplate (like SimpleJdbcTemplate)? I was thinking I could implement a generic update method

update(String tableName, String columnsSql, String whereSql, Long version, Object... params)

Where I could:

• append version=version+1 to columnSql
• append version=? to whereSql
• add version number to correct place within params (separate param is forcing to pass that value)
• Check that exactly 1 item was updated and throw StaleObjectStateException otherwise

Is there any library that would wrap jdbctemplate and do something similar for me? Don't want to invent something that exists... :)

Answer 1

不，您必须手动将乐观锁定行为添加到更新查询中。