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https://issues.apache.org/jira/browse/JENA-1752?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16921351#comment-16921351
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Andy Seaborne edited comment on JENA-1752 at 9/3/19 11:42 AM:
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Right - and {{ElementExists}}/{{ElementNotExists}} are syntax extensions, not
part of SPARQL 1.1 (the WG decided to require {{FILTER}} even though there are
an ASK-subquery).
was (Author: andy.seaborne):
Right - and {{ElementExists}}/{{ElementNotExists}] are syntax extensions, not
part of SPARQL 1.1 (the WG decided to require {{FILTER}} even though there are
an ASK-subquery).
> QueryBuilders should support (NOT) EXISTS clause
> ------------------------------------------------
>
> Key: JENA-1752
> URL: https://issues.apache.org/jira/browse/JENA-1752
> Project: Apache Jena
> Issue Type: Improvement
> Reporter: Jan Martin Keil
> Priority: Major
>
> To support (NOT) EXISTS clauses, I propose to add to the classes
> * {{org.apache.jena.arq.querybuilder.AskBuilder}}
> * {{org.apache.jena.arq.querybuilder.ConstructBuilder}}
> * {{org.apache.jena.arq.querybuilder.SelectBuilder}}
> the following methods
> * {{addExists(Element el)}}
> * {{addNotExists(Element el)}}
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