Learning the code way

We saw the query cache in our previous post . We know that UpdateTimestampsCache is only used for query caching. I decided to try and brin...

In the previous posts we saw the Hibernate cache system and the Cache modes . We saw the query cache is disabled by default.

In the previous few posts we saw how JPA provides us with an annotation driven approach to configure our entities. As with all standard API...

In the previous post we saw the GET and IGNORE values for CacheMode . The other values are PUT and REFRESH . Consider the below code:

Hibernate offers us a CacheMode option. This is something that allows us to control the behavior of the second level cache . Consider the ...

In earlier posts we saw the settings needed for configuring Hibernate's second level cache and the various caches providers supported ...

In the previous post we saw how to setup the cache provider for Hibernate . But that is not the end of the story. We need to decide what ki...

The Hibernate framework comes with a complete caching system. This cache system is used to reduce the amount of SQL queries fired in the sy...

We have already seen that Hibernate extensively uses proxies. It uses proxies when we call load , it uses proxies for lazily loading assoc...

In the previous post we saw the need for ResultTransformer , how using the value of Criteria.DISTINCT_ROOT_ENTITY filters duplicate record...

Consider the below criteria example which simply loads the Entity records from the database with ids less than 6.

Hibernate provides us with the option to fire explicit SQL queries. But with the presence of HQL and Criteria why would one want to do that...

We often have grids in our application where we need to show the results as pages. There is also often a row of text making the claim ...

In an earlier post we saw how Criteria provided us with the ability to add restrictions in the where clause using pure SQL . The next quest...

We saw aggregate functions with HQL . Criteria too has methods that provide for using aggregate functions. Consider the below code that sim...

In previous posts we have seen how to use the Criteria interface. We have also been using the setProjection method when needed to select pr...

Before I start let me state that I am still to come across a valid scenario in actual application code where I could find this functionalit...

Few posts ago we saw HQL's extensive support for joins . I decided to check out Criteria's claims to the same. I decided to start o...

We earlier how a custom criterion could be created to handle special scenarios. However this may seem overkill if the condition can be eas...

I need to execute a query to fetch all entities with id is greater than 5 and the names start with "ent". That means there are tw...