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https://issues.apache.org/jira/browse/CAY-2693?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17251841#comment-17251841
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John Larson edited comment on CAY-2693 at 12/18/20, 4:11 PM:
-------------------------------------------------------------
In my posted file, the first condition need not check to see if the entity is
abstract. Abstract or not, if there are no subentities, it should return the
declared qualifier
*public* Expression qualifierForEntityAndSubclasses() {
*if* (subentities == *null*) *return* entity.getDeclaredQualifier();
was (Author: larsonja):
The first condition need not check to see if the entity is abstract. Abstract
or not, if there are no subentities, it should return the declared qualifier
*public* Expression qualifierForEntityAndSubclasses() {
*if* (subentities == *null*) *return* entity.getDeclaredQualifier();
> Abstract subentities do not have rows materialized correctly
> ------------------------------------------------------------
>
> Key: CAY-2693
> URL: https://issues.apache.org/jira/browse/CAY-2693
> Project: Cayenne
> Issue Type: Bug
> Components: Database integration
> Affects Versions: 4.1
> Reporter: John Larson
> Assignee: Nikita Timofeev
> Priority: Minor
> Labels: query-lifecycle, query_generator
> Fix For: 4.1.1, 4.2.M3
>
> Attachments: EntityInheritanceTree.java
>
> Original Estimate: 24h
> Remaining Estimate: 24h
>
> Given an inheritance tree such as (qualifiers are in parentheses):
> abstract class A
> concrete class B extends A (type = 0)
> abstract class C extends A
> concrete class D extends C (type = 1)
> concrete class E extends C (type=2)
> and single-table inheritance.
> When querying on class A and results include a row of type D,
> EntityInheritanceTree will return C as the matching entity. In fact, even if
> the results include a row of type B, if entityMatchingRow will return C if it
> is checked before entity B.
> Also, qualifierForEntityAndSubclasses will return a null qualifier for type C
> when it should really return (type =1) or (type = 2).
>
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