How can I generate DDL from existing entities with annotations using a maven plugin?

Question

I have maven project and I want to generate DDL from existing entities.

How can I do that?

Is there any maven plugin that I can generate the DDL?

I

Answer 1

openjpa-maven-plugin plugin provides a goal sql. Using this goal, it is possible to create the DDL from existing entities.

    org.apache.openjpa
    openjpa-maven-plugin
    2.2.0
    
        **/entity/ *.class
        true
        com.ibm.db2.jcc.DB2Driver
        true
        ${basedir}/src/main/resources/META-INF/persistence.xml
        ${skip.jpa}
        ${basedir}/src/main/resources/database.sql
    
        
            
                 org.apache.openjpa
                 openjpa
                 2.1.1
            
            
                org.slf4j
                slf4j-api
                1.6.6
            
            
                org.slf4j
                slf4j-simple
                1.6.6
            
        
    



    org.apache.openjpa
    openjpa-maven-plugin
    
        
            sql
            generate-resources
            
                sql