Spring @Value and resolving property names with dots

I'm moving a legacy application (I seem to be doing that a lot recently) to Spring and injecting properties with @Value into Spring managed beans all over the place. And it doesn't work: public class SomeService{ @Value("#{the.org.namespace.someProperty}") private String someProperty; } Dots have apparently a special meaning, so this fails with a message that 'the' … Continue reading Spring @Value and resolving property names with dots →

Note to self: how to post on facebook as a page

How to obtain a long-term access token for a page and programmaticaly post to it: From here: http://stackoverflow.com/questions/8231877/facebook-access-token-for-pages Go to the Graph API Explorer Choose your app from the dropdown menu Click "Get Access Token" Choose the manage_pages permission (you may need the user_events permission too, not sure) Now access the me/accounts connection and copy … Continue reading Note to self: how to post on facebook as a page →

logging container-managed datasource jdbc with log4jdbc

In my new 'old' project which I just inherited there is - once more - Hibernate and plain JDBC access to a database, happily mixed. Hibernate logs SQL nicely, but that leaves out whatever datbase access the rest of the application is performing. I found log4jdbc very convenient which allows fain-grained logging over every interaction … Continue reading logging container-managed datasource jdbc with log4jdbc →

JPA and postgres transaction isolation

The short story: the default Postgres transaction isolation level can lead to trouble in a web application. I'm showing here a way to change it in a Spring/JPA application. The long story: One of the applications I worked recently on consists of a rich client which issues an HTTP request for every little thing it … Continue reading JPA and postgres transaction isolation →

Reddit as an OAuth provider for a Java backend

OAuth (2) and Java work well together, there are plenty of libraries available which handle the general case and the more specific peculiarities of the various OAuth providers. Despite solid implementations like my favourite Spring Social [1] framework the state of OAuth is at best fragmented. Not only because Spring Social is not as well … Continue reading Reddit as an OAuth provider for a Java backend →