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https://issues.apache.org/jira/browse/ISIS-698?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dan Haywood resolved ISIS-698.
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Resolution: Fixed
> Allow JDOQL to be able to select scalars (eg project individual field(s))
> rather than entire entities.
> ------------------------------------------------------------------------------------------------------
>
> Key: ISIS-698
> URL: https://issues.apache.org/jira/browse/ISIS-698
> Project: Isis
> Issue Type: Improvement
> Components: Objectstore: JDO
> Affects Versions: objectstore-jdo-1.3.0
> Reporter: Dan Haywood
> Assignee: Dan Haywood
> Priority: Minor
> Fix For: objectstore-jdo-1.4.0
>
>
> a typical (currently supported) query is:
> @javax.jdo.annotations.Query(
> name = "findByPropertyAndType", language = "JDOQL",
> value = "SELECT "
> + "FROM org.estatio.dom.lease.LeaseTerm "
> + "WHERE leaseItem.type == :leaseItemType "
> + " && leaseItem.lease.occupancies.contains(lu) "
> + " && (lu.unit.property == :property) "
> + "VARIABLES org.estatio.dom.lease.Occupancy lu"),
> this ticket is to support queries of the form (note the "SELECT startDate"):
> @javax.jdo.annotations.Query(
> name = "findStartDatesByPropertyAndType", language = "JDOQL",
> value = "SELECT startDate "
> + "FROM org.estatio.dom.lease.LeaseTerm "
> + "WHERE leaseItem.type == :leaseItemType "
> + " && leaseItem.lease.occupancies.contains(lu) "
> + " && (lu.unit.property == :property) "
> + "VARIABLES org.estatio.dom.lease.Occupancy lu")
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