Archive for the ‘java’ Category
Spring row mapper
Posted by: pureessence on: May 18, 2011
- In: geeky | java
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A coworker and I were chatting regarding spring rowMappers and I did a little more research and found the following: Spring’s simpleJdbcTemplate deprecated methods with parameterizedRowMapper in spring 3. The class ParameterizedRowMapper is not deprecated. Spring’s jdbcTemplate however only has methods that take RowMapper<T> so it will continue to work with parameterizedRowMapper. But it seems [...]
Spring: check if a column exist using resultset
Posted by: pureessence on: May 12, 2011
- In: geeky | java
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If you have a strange requirement in the rowMapper to check if a column exists or not, you could try to catch a SQLException of invalid column name or you could try:
Dynamically invoke methods using spring config
Posted by: pureessence on: March 25, 2011
- In: geeky | java
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A business rule at work requires some flexible configurations. I attempted to fulfill the need by create different spring batch steps/tasklets to execute each requirement based on a property value. For example, step 1 will need to execute methodOne on the class Repository with the appropriate parameters. The method signature & parameters are determined by [...]
How to execute IN() SQL in spring jdbcTemplate
Posted by: pureessence on: March 16, 2011
So for a long time, I wondered how you’d do the sql IN() using spring jdbcTemplate. Today I had an opportunity to work it out. Normally I used It’s not too friendly if you do If you wish to use the “where in” sql, there is a pretty elegant way to do it in spring [...]
Spring loading properties from database with a twist
Posted by: pureessence on: February 10, 2011
- In: geeky | java
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Watched the spring framework 3.1 webinar today and it was pretty interesting. Anyway, at work we are trying to possibly load property values from a database to resolve some tension between the developers and system specialists. I played a little bit at home as how we would set this up. This is not a new [...]
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Eclipse 3.6 toggle comment findings
Posted by: pureessence on: May 20, 2011
Despite of the usual convention of using ctrl+/, I found ctrl+shift+c is actually the way to go if you want it to work on everything. I care mostly about being able to toggle comment in the following file types: source code – comment with // or /* and */ block markup e.g. xml/html – comment [...]