JetBrains IntelliJ IDEA Blog

Instead of wasting your time searching the menus and toolbars in an attempt find out that action you need right now, use the Find Action command (Ctrl+Shift+A) to quickly locate what you need. It works just like Go to Class:

In Maia the Show Parameter Info action (Ctrl+P) is available in SQL function calls and value expressions.

First Maia EAP brings you the following JavaEE support improvements:

• EJB 3.1 @Singleton Session Bean
  
• JPA 2.0 @ElementCollection attribute type, plus freshly allowed attribute types in embeddable objects (@OneToOne, @Embedded, etc.)
• JPA 1.0/2.0 with Hibernate provider will not throw false-positive warnings about certain JPA specification violations that occur because of differences in JPA and Hibernate.

The upcoming IntelliJ IDEA 8.1.1 includes a new option to generate separate XML mapping per entity.

In IntelliJ IDEA you can quickly configure language injection for XML tags, attributes and Java method parameters and their return values. Just use Inject Language Intention on the code like this:



and it will immediately turn to:




And you get the complete coding assistance, with syntax and error highlighting, completion and navigation.

This functionality is provided by the bundled IntelliLang plugin. The full configuration is available for edit in the Settings dialog (see screenshot below). Default configuration includes various mappings like RegExp language in Pattern.compile(), SQL in JDBC API calls, JPA & Hibernate QL injections and much more.

With IntelliJ IDEA you can quickly generate persistence mappings from any database schema. This feature is not so easy to find, so here’s the tip:

In IntelliJ IDEA HQL console can be used with pure JPA facets (as well as with Hibernate facets) to run JPAQL and HQL queries. All you need is Hibernate libraries and JDBC driver in a module classpath. If persistence.xml contains no Hibernate-specific database connection options, it should be mapped to an existing data source via JPA facet settings.

Tip: HQL console can also be used to generate DDL statements for JPA and Hibernate mappings via its Generate DDL command.

Update: If a Persistence Unit or Session Factory is mapped to a valid local Data Source there is no need to specify JDBC driver jars in a module classpath (Since 8.1.1).

In IntelliJ IDEA you can quickly navigate within JPA/Hibernate ER-Diagram using the File Structure Popup (press Ctrl+F12, or invoke View menu, File Structure Popup command):