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https://issues.apache.org/jira/browse/JDO-756?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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joseaio updated JDO-756:
------------------------
    Description: 
Please see: JDO Guides : M-N Attributed Relation
http://www.datanucleus.org/products/accessplatform_3_1/guides/jdo/many_many_attributed/index.html

public class BusinessRelation{
· private Customer customer; // PK
· private Supplier supplier; // PK

BusinessRelation.PK requires:

· public LongIdentity customer; // LongIdentity dependency
· public LongIdentity supplier; // LongIdentity dependency

In Customer and Supplier classes: the id is long (not LongIdentity)
· private long id; // PK
 
I think more convenient enhance BusinessRelation.PK to allow long types (and 
remove LongIdentity/***Identity dependencies):

BusinessRelation.PK
· public long customer;   // Use long as Customer.id field
· public long supplier; // Use long as Supplier.id field

note: the same rule for other basic types (String, Dates, Integer, Long, 
Byte...)






  was:
Please see: JDO Guides : M-N Attributed Relation
http://www.datanucleus.org/products/accessplatform_3_1/guides/jdo/many_many_attributed/index.html

public class BusinessRelation{
 private Customer customer; // PK
 private Supplier supplier; // PK

BusinessRelation.PK requires:

 public LongIdentity customer; // Use same name as BusinessRelation field
 public LongIdentity supplier; // Use same name as BusinessRelation field

Instead in Customer and Suplier classes: the id is long (not LongIdentity)
     private long id; // PK
 
I think more convenient enhance BusinessRelation.PK to allow long types (and 
remove Long/StringIdentity dependencies):

 public long customer; // Use same name as BusinessRelation field
 public long supplier; // Use same name as BusinessRelation field

note: the same for any other basic types (String, Dates,... included)







> Enhance PK to avoid LongIdentity/StringIdentity dependencies
> ------------------------------------------------------------
>
>                 Key: JDO-756
>                 URL: https://issues.apache.org/jira/browse/JDO-756
>             Project: JDO
>          Issue Type: Improvement
>            Reporter: joseaio
>             Fix For: JDO 3.2
>
>
> Please see: JDO Guides : M-N Attributed Relation
> http://www.datanucleus.org/products/accessplatform_3_1/guides/jdo/many_many_attributed/index.html
> public class BusinessRelation{
> · private Customer customer; // PK
> · private Supplier supplier; // PK
> BusinessRelation.PK requires:
> · public LongIdentity customer; // LongIdentity dependency
> · public LongIdentity supplier; // LongIdentity dependency
> In Customer and Supplier classes: the id is long (not LongIdentity)
> · private long id; // PK
>  
> I think more convenient enhance BusinessRelation.PK to allow long types (and 
> remove LongIdentity/***Identity dependencies):
> BusinessRelation.PK
> · public long customer;   // Use long as Customer.id field
> · public long supplier; // Use long as Supplier.id field
> note: the same rule for other basic types (String, Dates, Integer, Long, 
> Byte...)



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