This page shows how to do "simple joins"
http://gae-java-persistence.blogspot.com/2010/03/executing-simple-joins-across-owned.html
However, is there a way to join the same child element twice to check
for a child element that contains 2 specific items, like I'm trying to
do here but failing/returning 0 results?
javax.jdo.Query q5 = pm2.newQuery("select key from " +
Document.class.getName()
+ " where "
+ "DocumentSearchKeyValues.contains(dskv) &&
dskv.DocumentSearchKey_Value == 'key 3 - sample value'"
+ " && DocumentSearchKeyValues.contains(dskv2)
&&
dskv2.DocumentSearchKey_Value == 'test key 2 - sample value'"
);
q5.declareVariables(DocumentSearchKeyValue.class.getName() + "
dskv;
" + DocumentSearchKeyValue.class.getName() + " dskv2");
List<Key> q5_results = (List<Key>) q5.execute();
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