[hibernate-issues] [Hibernate-JIRA] Created: (HHH-2872) MappingException thrown for @ManyToOne join if table on the left of the association is alphabetically lower than table on the right

[Mukesh (JIRA)]

MappingException thrown for @ManyToOne  join if table on the left of the association is alphabetically lower than table on the right 
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                 Key: HHH-2872
                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2872
             Project: Hibernate3
          Issue Type: Bug
          Components: core, query-hql
    Affects Versions: 3.2.5
            Reporter: Mukesh


I get a MappingException for @ManyToOne join if table on the left of the association is alphabetically lower than table on the right 

I have tables VO_USER, V_ORGANIZATIONAL and VO_AREA
VO_USER has USR_IDR as primary key.
V_ORGANIZATIONAL has a composite primary key of BUSINESS_AREA_CODE and CODE
VO_AREA has BUS_ARA_IDR as the primary key

I get the following exception when I join the VO_USER table with the V_ORGANIZATIONAL table
 "org.hibernate.MappingException: Unable to find column with logical name: BUSINESS_AREA_CODE in org.hibernate.mapping.Table(V_ORGANIZATIONAL_GRADE) and its related supertables and secondary tables"

Howerver, if I rename the table V_ORGANIZATIONAL to VO_ORGANIZATIONAL, it works fine - which makes me conclude that it is an issue with the alphabetical ordering of the tables in the association.   The table name on the left side of the @ManyToOne join must be alphabetically greater than the table on the right side - perhaps of the way hibernate loads the classes ?? 

Can someone confirm that is the issue, and what is the workaround/solution as I dont want to change the name of the table


The simplified Code :

@Entity
@org.hibernate.annotations.Entity(mutable = true)
@Table(name = "VO_USER")
@Cache(usage = CacheConcurrencyStrategy.READ_WRITE, region = "user")
public class User implements Serializable
{
	private static final long serialVersionUID = -1894472442328538017L;

	@Id
	@Column(name = "USR_IDR")
	private String userId;

	@ManyToOne
	@JoinColumn(name = "BUS_ARA_IDR", insertable = false, updatable = false, unique = false, nullable = false)
	private BusinessArea businessArea;

	@ManyToOne(targetEntity = Organizational.class)
	@JoinColumns( {
		@JoinColumn(name = "BUS_ARA_IDR", referencedColumnName = "BUSINESS_AREA_CODE", unique = false, insertable = false, updatable = false, nullable=true),
		@JoinColumn(name = "USR_GRD", referencedColumnName = "CODE", unique = false, insertable = false, updatable = false, nullable=true)
			})
	private Organizational organizational;
	
	....
}	

@Entity
@Table(name = "V_ORGANIZATIONAL")
@IdClass(OrganizationalKey.class)
@Cache(usage = CacheConcurrencyStrategy.READ_ONLY, region = "organization")
public class Organizational implements CodedValue,
		Comparable<Organizational>, Serializable
{
	private static final long serialVersionUID = 7414956278287853961L;


	@Id
	private String code;

	@Id
	private BusinessArea businessArea;

	private Organizational()
	{
	}
	
	....
}


public class OrganizationalKey implements Serializable
{
	private static final long serialVersionUID = -8022957102173252455L;
	
	@ManyToOne(targetEntity = BusinessArea.class)
	@JoinColumn(name = "BUSINESS_AREA_CODE", insertable = false, updatable = false)
	private BusinessArea businessArea;
	
	@Column(name = "CODE", length = 5, insertable = false, updatable = false)
	private String code;
	
		
	OrganizationalKey()
	{
	}
	
	....
}


@Entity
@Table(name = "VO_AREA")
@Cache(usage = CacheConcurrencyStrategy.READ_ONLY, region = "organization")
public class BusinessArea implements CodedValue, Serializable
{
	private static final long serialVersionUID = 6911068689852530787L;
	
	@Id
	@Column(name = "BUS_ARA_IDR", length = 3, updatable = false)
	private String code;

	private BusinessArea()
	{
	};
}

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