Re: RequestFactory Eagerly Fetches the collections in my entity meant to loaded Lazy
Thanks Thomas, You always been a great help... :)
On Saturday, 16 February 2013 03:47:37 UTC+5:30, Thomas Broyer wrote:
Because a ValueProxy has no identity (and therefore cannot be retrieved
again later), .with() doesn't apply to it; it only applies to EntityProxy.
On Friday, February 15, 2013 11:07:10 PM UTC+1, Aryan wrote:
Hi all,
RequestFactory seems to fetch whatever the collection I have in my
ValueProxy eagarly.
Lets see the code
@Entity
public class Venue implements Serializable {
private name;
private Address address;
private SetVenueContact contacts;
@OneToMany(fetch = FetchType.LAZY)
public SetVenueContact getVenueContactses() {
return this.contacts;
}
// other getters and setters
}
Lets assume I have set everything else for RequestFactory and Hibernate
(Hibernate standalone tests run fine) in order.
I call the below code from client:
requestFactory.venueRequest.findById(7).fire(new RecieverVenueProxy() {
public void onSuccess(VenueProxy res) {
log.info(I never get this :();
}
});
In service method
public Venue findById() {
//currently I am using a command pattern for a unit of transaction
but anyway I just write simply whats happening
// assume try catch and variable declaration code
session = HibernateUtil.getSessionFactory.openSession();
trx = session.getTrasaction();
trx.beginTransaction();
venue = veneuDao.findById(7);
trx.commit();
session.close();
}
##
Run Application and get this exception
org.hibernate.LazyInitializationException: failed to lazily initialize a
collection of role: com.x..dto.Venue.contacts, no session or
session was closed
at
org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationException(AbstractPersistentCollection.java:383)
at
org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationExceptionIfNotConnected(AbstractPersistentCollection.java:375)
at
org.hibernate.collection.AbstractPersistentCollection.initialize(AbstractPersistentCollection.java:368)
at
org.hibernate.collection.AbstractPersistentCollection.read(AbstractPersistentCollection.java:111)
at
org.hibernate.collection.PersistentSet.iterator(PersistentSet.java:186)
at
com.google.web.bindery.requestfactory.server.Resolver.resolveClientValue(Resolver.java:617)
at
com.google.web.bindery.requestfactory.server.Resolver.access$400(Resolver.java:50)
at
com.google.web.bindery.requestfactory.server.Resolver$PropertyResolver.visitReferenceProperty(Resolver.java:139)
at
com.google.web.bindery.autobean.shared.AutoBeanVisitor.visitCollectionProperty(AutoBeanVisitor.java:229)
at
com.google.web.bindery.autobean.vm.impl.ProxyAutoBean.traverseProperties(ProxyAutoBean.java:300)
at
com.google.web.bindery.autobean.shared.impl.AbstractAutoBean.traverse(AbstractAutoBean.java:166)
at
com.google.web.bindery.autobean.shared.impl.AbstractAutoBean.accept(AbstractAutoBean.java:101)
at
com.google.web.bindery.requestfactory.server.Resolver.resolveClientValue(Resolver.java:395)
at
com.google.web.bindery.requestfactory.server.SimpleRequestProcessor.processInvocationMessages(SimpleRequestProcessor.java:483)
at
com.google.web.bindery.requestfactory.server.SimpleRequestProcessor.process(SimpleRequestProcessor.java:225)
at
com.google.web.bindery.requestfactory.server.SimpleRequestProcessor.process(SimpleRequestProcessor.java:127)
at
com.google.web.bindery.requestfactory.server.RequestFactoryServlet.doPost(RequestFactoryServlet.java:133
)
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:487)
at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1097)
at
com.x.x.x.PersistenceFilter.doFilter(PersistenceFilter.java:35)
at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1088)
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:729)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)
at
org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at
org.mortbay.jetty.handler.RequestLogHandler.handle(RequestLogHandler.java:49)
at
org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at
RequestFactory Eagerly Fetches the collections in my entity meant to loaded Lazy
Hi all,
RequestFactory seems to fetch whatever the collection I have in my
ValueProxy eagarly.
Lets see the code
@Entity
public class Venue implements Serializable {
private name;
private Address address;
private SetVenueContact contacts;
@OneToMany(fetch = FetchType.LAZY)
public SetVenueContact getVenueContactses() {
return this.contacts;
}
// other getters and setters
}
Lets assume I have set everything else for RequestFactory and Hibernate
(Hibernate standalone tests run fine) in order.
I call the below code from client:
requestFactory.venueRequest.findById(7).fire(new RecieverVenueProxy() {
public void onSuccess(VenueProxy res) {
log.info(I never get this :();
}
});
In service method
public Venue findById() {
//currently I am using a command pattern for a unit of transaction
but anyway I just write simply whats happening
// assume try catch and variable declaration code
session = HibernateUtil.getSessionFactory.openSession();
trx = session.getTrasaction();
trx.beginTransaction();
venue = veneuDao.findById(7);
trx.commit();
session.close();
}
##
Run Application and get this exception
org.hibernate.LazyInitializationException: failed to lazily initialize a
collection of role: com.x..dto.Venue.contacts, no session or
session was closed
at
org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationException(AbstractPersistentCollection.java:383)
at
org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationExceptionIfNotConnected(AbstractPersistentCollection.java:375)
at
org.hibernate.collection.AbstractPersistentCollection.initialize(AbstractPersistentCollection.java:368)
at
org.hibernate.collection.AbstractPersistentCollection.read(AbstractPersistentCollection.java:111)
at org.hibernate.collection.PersistentSet.iterator(PersistentSet.java:186)
at
com.google.web.bindery.requestfactory.server.Resolver.resolveClientValue(Resolver.java:617)
at
com.google.web.bindery.requestfactory.server.Resolver.access$400(Resolver.java:50)
at
com.google.web.bindery.requestfactory.server.Resolver$PropertyResolver.visitReferenceProperty(Resolver.java:139)
at
com.google.web.bindery.autobean.shared.AutoBeanVisitor.visitCollectionProperty(AutoBeanVisitor.java:229)
at
com.google.web.bindery.autobean.vm.impl.ProxyAutoBean.traverseProperties(ProxyAutoBean.java:300)
at
com.google.web.bindery.autobean.shared.impl.AbstractAutoBean.traverse(AbstractAutoBean.java:166)
at
com.google.web.bindery.autobean.shared.impl.AbstractAutoBean.accept(AbstractAutoBean.java:101)
at
com.google.web.bindery.requestfactory.server.Resolver.resolveClientValue(Resolver.java:395)
at
com.google.web.bindery.requestfactory.server.SimpleRequestProcessor.processInvocationMessages(SimpleRequestProcessor.java:483)
at
com.google.web.bindery.requestfactory.server.SimpleRequestProcessor.process(SimpleRequestProcessor.java:225)
at
com.google.web.bindery.requestfactory.server.SimpleRequestProcessor.process(SimpleRequestProcessor.java:127)
at
com.google.web.bindery.requestfactory.server.RequestFactoryServlet.doPost(RequestFactoryServlet.java:133
)
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:487)
at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1097)
at
com.x.x.x.PersistenceFilter.doFilter(PersistenceFilter.java:35)
at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1088)
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:729)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at
org.mortbay.jetty.handler.RequestLogHandler.handle(RequestLogHandler.java:49)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at org.mortbay.jetty.Server.handle(Server.java:324)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:505)
at
org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:843)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:647)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:380)
at
org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:395)
Re: RequestFactory Eagerly Fetches the collections in my entity meant to loaded Lazy
Because a ValueProxy has no identity (and therefore cannot be retrieved
again later), .with() doesn't apply to it; it only applies to EntityProxy.
On Friday, February 15, 2013 11:07:10 PM UTC+1, Aryan wrote:
Hi all,
RequestFactory seems to fetch whatever the collection I have in my
ValueProxy eagarly.
Lets see the code
@Entity
public class Venue implements Serializable {
private name;
private Address address;
private SetVenueContact contacts;
@OneToMany(fetch = FetchType.LAZY)
public SetVenueContact getVenueContactses() {
return this.contacts;
}
// other getters and setters
}
Lets assume I have set everything else for RequestFactory and Hibernate
(Hibernate standalone tests run fine) in order.
I call the below code from client:
requestFactory.venueRequest.findById(7).fire(new RecieverVenueProxy() {
public void onSuccess(VenueProxy res) {
log.info(I never get this :();
}
});
In service method
public Venue findById() {
//currently I am using a command pattern for a unit of transaction
but anyway I just write simply whats happening
// assume try catch and variable declaration code
session = HibernateUtil.getSessionFactory.openSession();
trx = session.getTrasaction();
trx.beginTransaction();
venue = veneuDao.findById(7);
trx.commit();
session.close();
}
##
Run Application and get this exception
org.hibernate.LazyInitializationException: failed to lazily initialize a
collection of role: com.x..dto.Venue.contacts, no session or
session was closed
at
org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationException(AbstractPersistentCollection.java:383)
at
org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationExceptionIfNotConnected(AbstractPersistentCollection.java:375)
at
org.hibernate.collection.AbstractPersistentCollection.initialize(AbstractPersistentCollection.java:368)
at
org.hibernate.collection.AbstractPersistentCollection.read(AbstractPersistentCollection.java:111)
at org.hibernate.collection.PersistentSet.iterator(PersistentSet.java:186)
at
com.google.web.bindery.requestfactory.server.Resolver.resolveClientValue(Resolver.java:617)
at
com.google.web.bindery.requestfactory.server.Resolver.access$400(Resolver.java:50)
at
com.google.web.bindery.requestfactory.server.Resolver$PropertyResolver.visitReferenceProperty(Resolver.java:139)
at
com.google.web.bindery.autobean.shared.AutoBeanVisitor.visitCollectionProperty(AutoBeanVisitor.java:229)
at
com.google.web.bindery.autobean.vm.impl.ProxyAutoBean.traverseProperties(ProxyAutoBean.java:300)
at
com.google.web.bindery.autobean.shared.impl.AbstractAutoBean.traverse(AbstractAutoBean.java:166)
at
com.google.web.bindery.autobean.shared.impl.AbstractAutoBean.accept(AbstractAutoBean.java:101)
at
com.google.web.bindery.requestfactory.server.Resolver.resolveClientValue(Resolver.java:395)
at
com.google.web.bindery.requestfactory.server.SimpleRequestProcessor.processInvocationMessages(SimpleRequestProcessor.java:483)
at
com.google.web.bindery.requestfactory.server.SimpleRequestProcessor.process(SimpleRequestProcessor.java:225)
at
com.google.web.bindery.requestfactory.server.SimpleRequestProcessor.process(SimpleRequestProcessor.java:127)
at
com.google.web.bindery.requestfactory.server.RequestFactoryServlet.doPost(RequestFactoryServlet.java:133
)
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:487)
at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1097)
at
com.x.x.x.PersistenceFilter.doFilter(PersistenceFilter.java:35)
at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1088)
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:729)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)
at
org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at
org.mortbay.jetty.handler.RequestLogHandler.handle(RequestLogHandler.java:49)
at
org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at org.mortbay.jetty.Server.handle(Server.java:324)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:505)
at
