Telosys does not generate column definition (i.e. for CHAR-columns)

Question

When using Telosys to generate entities with the java7-persistence-commons-jpa-T300 templates the column annotation never includes columnDefinition when generating the @Column annotation in JpaRecord-classes. That forces database schemageneration with hbm2ddl always to generate VARCHAR columns. But when the origin database column is an CHAR-column the generated record-class should also generate columnDefinition... i.e.: @Column(columnDefinition = "CHAR(xx)", name = "VVT_NR", nullable = false, length = 20)

Is there a way to force telosys to generate the columnDefinition (with correct length for xx of course)?

Answer 1

The JPA function "$jpa.fieldAnnotations()” used in the mentioned template is a shortcut to generate the "classical" JPA annotations for a given field and indeed it doesn’t generated all the “@Column” optional elements (for example “table”, “insertable”, “updatable” and “columnDefinition” are not generated)

In version 3 there's no way to force the generator to produce the "columnDefinition".

But if you really want to generate the “columnDefinition” you can create a specific function or a specific macro.

To create a Velocity macro see :

• http://www.telosys.org/templates-doc/velocity/macro.html
• http://people.apache.org/~henning/docbook/html/ch07.html

To create a specific function see this other question :

• Is it possible in a Telosys template to call a function created specifically?

For a specific function you can reuse the "$jpa" class source code :

• https://github.com/telosys-tools-bricks/telosys-tools-generator/blob/master/src/main/java/org/telosys/tools/generator/context/Jpa.java