Hello
I have my entity defined as:
@PersistenceCapable(identityType = IdentityType.APPLICATION)
public class BloodDonorReminderHistory {
@PrimaryKey
@Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
private String emailId;
@Persistent
private Date lastRemindDate;
..
}
The query I am using is:
query = pm.newQuery(BloodDonorReminderHistory.class,
":bloodDonorEmailList.contains(emailId) && lastRemindDate <
:lastRemindDate");
@SuppressWarnings("unchecked")
List<BloodDonorReminderHistory> hisList =
(List<BloodDonorReminderHistory>)query.execute(bloodDonorEmailList,
lastRemindDate);
And it throws exception as per below. Please advise what could be wrong
here and how to resolve:
java.lang.IllegalArgumentException: name cannot be null or empty
at
com.google.appengine.api.datastore.KeyFactory.createKey(KeyFactory.java:70)
at
com.google.appengine.api.datastore.KeyFactory.createKey(KeyFactory.java:57)
at
org.datanucleus.store.appengine.query.DatastoreQuery.internalPkToKey(DatastoreQuery.java:1677)
at
org.datanucleus.store.appengine.query.DatastoreQuery.processPotentialBatchGet(DatastoreQuery.java:1419)
at
org.datanucleus.store.appengine.query.DatastoreQuery.addLeftPrimaryExpression(DatastoreQuery.java:1315)
at
org.datanucleus.store.appengine.query.DatastoreQuery.handleContainsOperation(DatastoreQuery.java:1195)
at
org.datanucleus.store.appengine.query.DatastoreQuery.addExpression(DatastoreQuery.java:1084)
at
org.datanucleus.store.appengine.query.DatastoreQuery.addExpression(DatastoreQuery.java:1053)
at
org.datanucleus.store.appengine.query.DatastoreQuery.addFilters(DatastoreQuery.java:1031)
at
org.datanucleus.store.appengine.query.DatastoreQuery.performExecute(DatastoreQuery.java:238)
at
org.datanucleus.store.appengine.query.JDOQLQuery.performExecute(JDOQLQuery.java:92)
at org.datanucleus.store.query.Query.executeQuery(Query.java:1489)
at org.datanucleus.store.query.Query.executeWithArray(Query.java:1371)
at org.datanucleus.jdo.JDOQuery.execute(JDOQuery.java:266)
at
vik.sakshum.sakshumweb.server.BloodDonorAdminServiceImpl.sendBloodDonorVerificationEmail(BloodDonorAdminServiceImpl.java:955)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
com.google.appengine.tools.development.agent.runtime.Runtime.invoke(Runtime.java:104)
at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:569)
at
com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:208)
at
com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java:248)
at
com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:62)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1166)
at
com.google.appengine.tools.development.HeaderVerificationFilter.doFilter(HeaderVerificationFilter.java:35)
at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
at
com.google.appengine.api.blobstore.dev.ServeBlobFilter.doFilter(ServeBlobFilter.java:60)
at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
at
com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:43)
at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
at
com.google.appengine.tools.development.StaticFileFilter.doFilter(StaticFileFilter.java:122)
at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
at
com.google.appengine.tools.development.BackendServersFilter.doFilter(BackendServersFilter.java:97)
at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388)
at
org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418)
at
com.google.appengine.tools.development.DevAppEngineWebAppContext.handle(DevAppEngineWebAppContext.java:78)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at
com.google.appengine.tools.development.JettyContainerService$ApiProxyHandler.handle(JettyContainerService.java:362)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at org.mortbay.jetty.Server.handle(Server.java:326)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
at
org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:938)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:755)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:218)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
at
org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:409)
at
org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
Thankx and Regards
Vik
Founder
http://www.sakshum.org
http://blog.sakshum.org
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