[hibernate-issues] [Hibernate-JIRA] Commented: (HBX-755) incorrect genreated code for many-to-many relationship

[Robert Banfill (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/HBX-755?page=comments#action_25050 ] 

Robert Banfill commented on HBX-755:
------------------------------------

Since Hibernate requires that the association table be named 'owningEnd_inverseEnd' in order for many-to-many's to work at runtime, it seems like the tool could take the inverse end name from the table and only add 'mappedBy' to that end.  It seems like this should be correct in all cases but we should probably still be able to override via the reverse engineering file.  Any thoughts?

> incorrect genreated code for many-to-many relationship 
> -------------------------------------------------------
>
>          Key: HBX-755
>          URL: http://opensource.atlassian.com/projects/hibernate/browse/HBX-755
>      Project: Hibernate Tools
>         Type: Bug

>   Components: ant
>     Versions: 3.2beta7
>     Reporter: azamjalali

>
>
> The following code is generated for Table rolea and roleb( these tables have many-to-many relation). Both of entities use ManytoMany annotation without jointable annotation.
>     /////////////////////////////////////////////////////////////////////
> package trce.impr.subsystem.entity;
> // Generated Sep 17, 2006 1:04:06 AM by Hibernate Tools 3.2.0.beta7
> import java.util.HashSet;
> import java.util.Set;
> import javax.persistence.CascadeType;
> import javax.persistence.Column;
> import javax.persistence.Entity;
> import javax.persistence.FetchType;
> import javax.persistence.Id;
> import javax.persistence.ManyToMany;
> import javax.persistence.Table;
> /**
>  * RoleB generated by hbm2java
>  */
> @Entity
> @Table(name="roleb"
>     ,catalog="registration"
>     , uniqueConstraints = {  }
> )
> public class RoleB  implements java.io.Serializable {
>     // Fields    
>      private int rolebId;
>      private Set<RoleA> roleas = new HashSet<RoleA>(0);
>      // Constructors
>     /** default constructor */
>     public RoleB() {
>     }
> 	/** minimal constructor */
>     public RoleB(int rolebId) {
>         this.rolebId = rolebId;
>     }
>     /** full constructor */
>     public RoleB(int rolebId, Set<RoleA> roleas) {
>        this.rolebId = rolebId;
>        this.roleas = roleas;
>     }
>    
>     // Property accessors
>      @Id
>     
>     @Column(name="roleb_id", unique=true, nullable=false, insertable=true, updatable=true)
>     public int getRolebId() {
>         return this.rolebId;
>     }
>     
>     public void setRolebId(int rolebId) {
>         this.rolebId = rolebId;
>     }
>     @ManyToMany(cascade={CascadeType.ALL}, fetch=FetchType.LAZY, mappedBy="rolebs")
>     public Set<RoleA> getRoleas() {
>         return this.roleas;
>     }
>     
>     public void setRoleas(Set<RoleA> roleas) {
>         this.roleas = roleas;
>     }
> }
> ////////////////////////////////////////////////////////////////////////////////////
> package trce.impr.subsystem.entity;
> // Generated Sep 17, 2006 1:04:06 AM by Hibernate Tools 3.2.0.beta7
> import java.util.HashSet;
> import java.util.Set;
> import javax.persistence.CascadeType;
> import javax.persistence.Column;
> import javax.persistence.Entity;
> import javax.persistence.FetchType;
> import javax.persistence.Id;
> import javax.persistence.ManyToMany;
> import javax.persistence.Table;
> /**
>  * RoleA generated by hbm2java
>  */
> @Entity
> @Table(name="rolea"
>     ,catalog="registration"
>     , uniqueConstraints = {  }
> )
> public class RoleA  implements java.io.Serializable {
>     // Fields    
>      private int roleaId;
>      private Set<RoleB> rolebs = new HashSet<RoleB>(0);
>      // Constructors
>     /** default constructor */
>     public RoleA() {
>     }
> 	/** minimal constructor */
>     public RoleA(int roleaId) {
>         this.roleaId = roleaId;
>     }
>     /** full constructor */
>     public RoleA(int roleaId, Set<RoleB> rolebs) {
>        this.roleaId = roleaId;
>        this.rolebs = rolebs;
>     }
>    
>     // Property accessors
>      @Id
>     
>     @Column(name="rolea_id", unique=true, nullable=false, insertable=true, updatable=true)
>     public int getRoleaId() {
>         return this.roleaId;
>     }
>     y
>     public void setRoleaId(int roleaId) {
>         this.roleaId = roleaId;
>     }
>     @ManyToMany(cascade={CascadeType.ALL}, fetch=FetchType.LAZY, mappedBy="roleas")
>     public Set<RoleB> getRolebs() {
>         return this.rolebs;
>     }
>     
>     public void setRolebs(Set<RoleB> rolebs) {
>         this.rolebs = rolebs;
>     }
> }
> //////////////////////////////////////////////////////////////////////

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