mysql - Auto creation of database tables using JDO -

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i new jdo , mysql. in project, want entities should converted in table automatically.

i had start using jdo , defined properties this,

javax.jdo.persistencemanagerfactoryclass=org.datanucleus.api.jdo.jdopersistencemanagerfactory   datanucleus.autocreateschema=true datanucleus.validatetables=false datanucleus.validateconstraints=false datanucleus.query.sql.allowall = true  javax.jdo.option.connectiondrivername=com.mysql.jdbc.driver javax.jdo.option.connectionurl=jdbc:mysql://127.0.0.1:3306/db_name javax.jdo.option.connectionusername=user javax.jdo.option.connectionpassword=123456 javax.jdo.option.mapping=hsql

sample entity:

@persistencecapable(identitytype = identitytype.application, table = "heartbeat") public class heartbeat implements serializable{     @primarykey     @column(length=128)     private string userid; ....... }

now, when compile or run application tables not being auto created. not sure property should use auto creation of tables based on entities created.

please bear question new jdo , mysql integration.

thanks in advance.


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