hi
iam using bellow subqueries in my application
Query innerq = pm.newQuery(beans.Emp.class,"this.sal == 6000.0");
innerq.setResult("ename");
Query outer = pm.newQuery(beans.Emp.class);
outer.setFilter("this.ename == myname ");
outer.setResult("ename");
outer.setCandidates(list);
outer.declareVariables("java.lang.String myname");
outer.addSubquery(innerq, "String myname",null );
outer.declareVariables("String myname");
List<String> list1 = (List)outer.execute();
when iam executing this iam getting the following exception :
org.datanucleus.store.appengine.query.DatastoreQuery
$UnsupportedDatastoreFeatureException: Problem with query <SELECT
ename FROM beans.Emp WHERE this.ename == myname VARIABLES String
myname>: Right side of expression is of unexpected type:
org.datanucleus.query.expression.VariableExpression
at
org.datanucleus.store.appengine.query.DatastoreQuery.addLeftPrimaryExpression
(DatastoreQuery.java:901)
at org.datanucleus.store.appengine.query.DatastoreQuery.addExpression
(DatastoreQuery.java:715)
at org.datanucleus.store.appengine.query.DatastoreQuery.addFilters
(DatastoreQuery.java:663)
at org.datanucleus.store.appengine.query.DatastoreQuery.performExecute
(DatastoreQuery.java:214)
at org.datanucleus.store.appengine.query.JDOQLQuery.performExecute
(JDOQLQuery.java:84)
at org.datanucleus.store.query.Query.executeQuery(Query.java:1489)
at org.datanucleus.store.query.Query.executeWithArray(Query.java:
1371)
at org.datanucleus.store.query.Query.execute(Query.java:1344)
at org.datanucleus.jdo.JDOQuery.execute(JDOQuery.java:221)
at jdoql.TestQuery.doGet(TestQuery.java:57)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:693)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:806)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:
487)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter
(ServletHandler.java:1093)
at
com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter
(TransactionCleanupFilter.java:43)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter
(ServletHandler.java:1084)
at com.google.appengine.tools.development.StaticFileFilter.doFilter
(StaticFileFilter.java:121)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter
(ServletHandler.java:1084)
at org.mortbay.jetty.servlet.ServletHandler.handle
(ServletHandler.java:360)
at org.mortbay.jetty.security.SecurityHandler.handle
(SecurityHandler.java:216)
at org.mortbay.jetty.servlet.SessionHandler.handle
(SessionHandler.java:181)
at org.mortbay.jetty.handler.ContextHandler.handle
(ContextHandler.java:712)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:
405)
at com.google.apphosting.utils.jetty.DevAppEngineWebAppContext.handle
(DevAppEngineWebAppContext.java:54)
at org.mortbay.jetty.handler.HandlerWrapper.handle
(HandlerWrapper.java:139)
at com.google.appengine.tools.development.JettyContainerService
$ApiProxyHandler.handle(JettyContainerService.java:313)
at org.mortbay.jetty.handler.HandlerWrapper.handle
(HandlerWrapper.java:139)
at org.mortbay.jetty.Server.handle(Server.java:313)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:
506)
at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete
(HttpConnection.java:830)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:514)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:381)
at org.mortbay.io.nio.SelectChannelEndPoint.run
(SelectChannelEndPoint.java:396)
at org.mortbay.thread.BoundedThreadPool$PoolThread.run
(BoundedThreadPool.java:442)
i request you to help me in this issue:-
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