#HIBERNATE JAVA HOW TO#
#HIBERNATE JAVA CODE#

So we'll need to help Hibernate out by telling it how we want to name our tables and columns.

#HIBERNATE JAVA HOW TO#

By default Hibernate doesn't know how to insert underscores (_) into the names of tables and columns. The last thing I should mention is the naming convention for tables and columns with Hibernate. If you were to put these annotations on the setter method, it won't work as Hibernate only looks at the getter methods for these annotations.

It's important to note the exact location of the and annotations: just above the getter method for the id instance variable. This.streetAddress = String getZipCode()Īs you can see above, the annotation is used at the class level, but the and annotations are used at the method level. Public void setStreetAddress(String streetAddress) This.phoneNumber = String getStreetAddress() Public void setPhoneNumber(String phoneNumber) Let's take a look at an actual example of all these annotations in action: import The first annotation ( is simple and it's used to “mark” the primary key for the table, the second annotation is and it will be used to specify HOW to generate primary keys. We still need to specify a couple of things:įor both items above, we'll use annotations. Unfortunately that's not the only step (if only it were that easy!). This is what Spring uses to know where to scan for annotations related to both the Spring framework and the Hibernate framework.

#HIBERNATE JAVA CODE#

The magic line of code above is the line. We'll need to make a quick tweak in our applicationConfig.xml file. If it finds any, then it will begin the process of looking through that particular Java object to recreate it as a table in your database!īefore Hibernate will start it's scan, not only do we need to invoke the tPackagesToScan code, but we also need to enable the scanning process that the Spring framework handles. Hibernate will scan that package for any Java objects annotated with the annotation. It works by scanning a particular package that you've specified in your configuration file (via tPackagesToScan(). So the key to getting Hibernate to create a table for us is to understand how Hibernate makes the decision to create a table. What we're going to be tackling in this post will the step #1, how to get Hibernate to create our tables for us. Establish a transactional means by which to perform CRUD operations.Give Java the ability to send queries and execute scripts on your database.Create the tables (if they're not already there) that will represent your Java objects.When I say that the goal is to communicate with your database, what I mean is: Remember, the whole point of the Hibernate framework is for you to be able to write Java code that allows you to communicate with your database. The focus of this podcast / blog post is to teach you how to create the connection between your Java objects and the SQL Database tables. Now that you've learned how to set up your first Hibernate Java project it's time to put that fresh new configuration to work! What You'll Learn

Hibernate java