These requirements are supported, as stated in EJB 2.0 spec ( http://java.sun.com/products/ejb/docs.html ).
Where possible, 'quick fix' intentions are provided (e.g. 'add CreateException? to create() method throws list')
EJB Java code Errors (EB=Entity Bean, SB=Session Bean, MB=Message Driven Bean)
- for EJB Interface (including EJB Remote, Local, Remote Home, Local Home)
- should be not final interface extending corresponding javax.ejb.XXX interface (note: this can be indirect...these interfaces just need to be eventually derived from the correct one. -- WalterMundt)
- all methods should be implemented in EJB Class (except finders for EB CMP)
- for EJB Remote-involved class (including EJB Remote Interface, Remote Home interface)
- all methods should throw java.rmi.RemoteException
- all methods arguments and return types should be RMI/IIOP compatible
- for EJB Local-involved class (including EJB Local Interface, Local Home interface)
- all methods should not throw java.rmi.RemoteException
- for EJB Home (including Remote Home, Local Home)
- SB, MB should define create method
- EB should define findByPrimaryKey method which returns component interface
- create method should throw CreateException? and return component interface
- Stateless SB should define the only create()
- finder method should throw FinderException? and return component interface or Collection
- for EJB Local interface
- CMR field accessor signature should be consistent with ejb-jar.xml
- for EJB Class
- should extend corresponding javax.ejb.*Bean class
- should be public, not final
- EB CMP 2.0 should be abstract, all other should not
- should define public no-args constructor
- MB should implement javax.jms.MessageListener
- should define at least one create method (except EB)
- EB should define post create method as well
- for each post create method should be corresponding create method
- create method should be public,not final,not abstract, defined in Home, should throw CreateException?, return PK (for EB) or void
- business method should have declaration in component interface
- should not define finalize()
- CMP EB should define all CMP/CMR field accessors which should (not for CMP 1.x) be abstract
- CMP/CMR field getters/setters should be consistent (getter return type and setter argument type should be the same)
- CMR field accessor signature should be consistent with ejb-jar.xml
- ejbSelect should be not abstract, should throw FinderException?
- Business,create,finder methods and method implementations from SessionBean?/EntityBean/MessageDrivenBean interfaces should not throw RemoteException? (warning for EJB 1.x )
EJB Deployment descriptor errors
- For each Component interface there should be Home interface and vice versa
- There should be Bean class
- DD should specify ejb-name
- for EB following tags should be present: <persistent-type>, <prim-key-class>(RMI/IIOP compatible), <reentrant>
- CMP/CMR fields should be valid Java identifiers beginning with lower case letter
- --- Checks below are performed inside EJB class only (e.g. write to EJB static field from other class is not detected) ---
- There should not be writes to the EJB static fields
- EJB should not use java.awt.*, java.io.File*, java.lang.reflect.*, java.security.*, java.net.ServerSocket, java.lang.ClassLoader, java.lang.SecurityManager, java.lang.Thread*
- EJB should not pass 'this' as method result or argument
-- AlexeyKudravtsev - 28 Jun 2002
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