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Open JPA query with One to Many Relation
How to fetch data from a child table by querying on parent table in openjpa which is One-to-Many Relationship.
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by: kingsobPosted on 2009-04-09 at 11:27:01ID: 24110032
here is a query what will select all children for a parent
select p from Parent p join fetch p.children where p.id = :id
you could then display a list of the children in jsf with something like this (assuming the child table had a column called name)
<h:dataTable "#{bean.parent.children}" var="child">
<h:column>
<h:outputText value="#{child.name}"/>
</h:column>
</h:dataTable>
you would also need a getter in your bean for the public Parent getParent();
if you were to post your two entity's for the parent and child, i could be more specific to your needs
Derek