JPA code generator

Java Persistence code generator, working with supplied MySQL database.

JPA code generator generates following:

• a JPA configuration file (persistence.xml)
• JPA annotated model classes (Entity)
• JPA Static Metamodel classes (_Entity)
• Basic DAO classes (EntityDao)
• a JAR file which contains config and classes above

Example generated codes

You can see available commands with fab -l:

• fab generate.schema
  • reverse engineering existing MySQL tables into a schema file (schema.sql)
  • requires MySQL connection with mysqldump command
• fab generate.code:<version>
  • generate java codes from schema.sql
• fab generate.jar
  • generate a JAR file from generated java codes
• fab generate.clean
  • remove schema.sql and java codes excluding gap codes (extension classes)

Generated codes are dependent on Hibernate ORM implementation for now.

Dependencies

Dependencies for this generator, not for generated sources.

• MySQL client 5.6 (mysqldump command)
• Python 2.7
• fabric
• jinja2 (Python template module)

Usage

Fork or clone this repo.

Configuration

Edit env in fabfile/_init_.py:

env.generated_dir = 'generated'
env.project_name = 'example-entity'

env.mysql = [
    # Input password interactively
    {'host': 'localhost', 'user': 'your_mysql_user_name', 'databases': ['your_database_name']},
    # Input password on batch
    {'host': 'localhost', 'user': 'your_mysql_user_name', 'password': 'your_mysql_password', 'databases': ['your_database_name']},
]

env.persistence_unit_name_map = {
    'your_database_name': 'your_persistence_unit_name'
}

_project_dir = 'example/project'
_project_package = 'example.project'

Schema file generator

fab generate.schema

Java files generator

Run with your build version:

fab generate.code:<version>

e.g. fab generate.code:1.0.0-SNAPSHOT

If you don't need persistence.xml, you can add no_xml option:

fab generate.code:<version>,no_xml=True

then you can skip generating persistence.xml.

Jar file generator

fab generate.jar