tapestry-jpa: JpaGridDataSource sort by a transient field
Hi there, I am using a Grid with JpaGridDataSource; when I click sort icon on a transient field of an entity, I get following exception: Caused by: java.lang.IllegalArgumentException: Unable to resolve attribute [name] against path at org.hibernate.ejb.criteria.path.AbstractPathImpl.unknownAttribute(AbstractPathImpl.java:118) at org.hibernate.ejb.criteria.path.AbstractPathImpl.locateAttribute(AbstractPathImpl.java:223) at org.hibernate.ejb.criteria.path.AbstractPathImpl.get(AbstractPathImpl.java:194) at org.apache.tapestry5.jpa.JpaGridDataSource.prepare(JpaGridDataSource.java:98) at org.apache.tapestry5.corelib.components.Grid$CachingDataSource.prepare(Grid.java:311) at org.apache.tapestry5.corelib.components.Grid.setupDataSource(Grid.java:481) at org.apache.tapestry5.corelib.components.Grid.setupRender(Grid.java:445) at org.apache.tapestry5.corelib.components.Grid$Shim_415c794d27985.invoke(Unknown Source) at org.apache.tapestry5.internal.plastic.MethodHandleImpl.invoke(MethodHandleImpl.java:48) at org.apache.tapestry5.internal.transform.BridgeClassTransformation$WrapMethodHandleAsMethodAccess.invoke(BridgeClassTransformation.java:85) at org.apache.tapestry5.internal.transform.RenderPhaseMethodWorker$Invoker.invoke(RenderPhaseMethodWorker.java:117) at org.apache.tapestry5.internal.transform.RenderPhaseMethodWorker$RenderPhaseMethodAdvice.advise(RenderPhaseMethodWorker.java:86) at org.apache.tapestry5.internal.transform.BridgeClassTransformation$WrapMethodAdviceAsComponentMethodAdvice.advise(BridgeClassTransformation.java:349) at org.apache.tapestry5.internal.plastic.AbstractMethodInvocation.proceed(AbstractMethodInvocation.java:86) at org.apache.tapestry5.corelib.components.Grid.setupRender(Grid.java) at org.apache.tapestry5.internal.structure.ComponentPageElementImpl$SetupRenderPhase.invokeComponent(ComponentPageElementImpl.java:230) at org.apache.tapestry5.internal.structure.ComponentPageElementImpl$AbstractPhase.invoke(ComponentPageElementImpl.java:191) Also can JpaGridDataSource provide the way to sort the result at local instead of database? Overall it's pleasant to work with JPA module, thanks a lot for the great job! Yunhua
Re: tapestry-jpa: JpaGridDataSource sort by a transient field
Can you please provide more details? Perfectly some source code to reproduce the issue. On Mon, Jul 11, 2011 at 11:06 PM, Richard Yunhua Sang yunhua.s...@gmail.com wrote: Hi there, I am using a Grid with JpaGridDataSource; when I click sort icon on a transient field of an entity, I get following exception: Caused by: java.lang.IllegalArgumentException: Unable to resolve attribute [name] against path at org.hibernate.ejb.criteria.path.AbstractPathImpl.unknownAttribute(AbstractPathImpl.java:118) at org.hibernate.ejb.criteria.path.AbstractPathImpl.locateAttribute(AbstractPathImpl.java:223) at org.hibernate.ejb.criteria.path.AbstractPathImpl.get(AbstractPathImpl.java:194) at org.apache.tapestry5.jpa.JpaGridDataSource.prepare(JpaGridDataSource.java:98) at org.apache.tapestry5.corelib.components.Grid$CachingDataSource.prepare(Grid.java:311) at org.apache.tapestry5.corelib.components.Grid.setupDataSource(Grid.java:481) at org.apache.tapestry5.corelib.components.Grid.setupRender(Grid.java:445) at org.apache.tapestry5.corelib.components.Grid$Shim_415c794d27985.invoke(Unknown Source) at org.apache.tapestry5.internal.plastic.MethodHandleImpl.invoke(MethodHandleImpl.java:48) at org.apache.tapestry5.internal.transform.BridgeClassTransformation$WrapMethodHandleAsMethodAccess.invoke(BridgeClassTransformation.java:85) at org.apache.tapestry5.internal.transform.RenderPhaseMethodWorker$Invoker.invoke(RenderPhaseMethodWorker.java:117) at org.apache.tapestry5.internal.transform.RenderPhaseMethodWorker$RenderPhaseMethodAdvice.advise(RenderPhaseMethodWorker.java:86) at org.apache.tapestry5.internal.transform.BridgeClassTransformation$WrapMethodAdviceAsComponentMethodAdvice.advise(BridgeClassTransformation.java:349) at org.apache.tapestry5.internal.plastic.AbstractMethodInvocation.proceed(AbstractMethodInvocation.java:86) at org.apache.tapestry5.corelib.components.Grid.setupRender(Grid.java) at org.apache.tapestry5.internal.structure.ComponentPageElementImpl$SetupRenderPhase.invokeComponent(ComponentPageElementImpl.java:230) at org.apache.tapestry5.internal.structure.ComponentPageElementImpl$AbstractPhase.invoke(ComponentPageElementImpl.java:191) Also can JpaGridDataSource provide the way to sort the result at local instead of database? Overall it's pleasant to work with JPA module, thanks a lot for the great job! Yunhua -- Best regards, Igor Drobiazko http://tapestry5.de
Re: tapestry-jpa: JpaGridDataSource sort by a transient field
On Mon, 11 Jul 2011 18:06:17 -0300, Richard Yunhua Sang yunhua.s...@gmail.com wrote: Hi there, Hi! I am using a Grid with JpaGridDataSource; when I click sort icon on a transient field of an entity, I get following exception: I don't think any GridDataSource implementation backed by a database would be able to handle transient properties, so you should set their corresponding PropertyModel's as unsortable. To get the PropertyModel, create a BeanModel for you entity class using the BeanModelSource service and use its get() method. -- Thiago H. de Paula Figueiredo Independent Java, Apache Tapestry 5 and Hibernate consultant, developer, and instructor Owner, Ars Machina Tecnologia da Informação Ltda. http://www.arsmachina.com.br - To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org For additional commands, e-mail: users-h...@tapestry.apache.org
Re: tapestry-jpa: JpaGridDataSource sort by a transient field
Thanks for your reply, but I do want to sort the result by transient field in Grid. It would be appreciated that the JPAGridDataSource is able to sort the result within JVM. On Mon, Jul 11, 2011 at 5:29 PM, Thiago H. de Paula Figueiredo thiag...@gmail.com wrote: On Mon, 11 Jul 2011 18:06:17 -0300, Richard Yunhua Sang yunhua.s...@gmail.com wrote: Hi there, Hi! I am using a Grid with JpaGridDataSource; when I click sort icon on a transient field of an entity, I get following exception: I don't think any GridDataSource implementation backed by a database would be able to handle transient properties, so you should set their corresponding PropertyModel's as unsortable. To get the PropertyModel, create a BeanModel for you entity class using the BeanModelSource service and use its get() method. -- Thiago H. de Paula Figueiredo Independent Java, Apache Tapestry 5 and Hibernate consultant, developer, and instructor Owner, Ars Machina Tecnologia da Informação Ltda. http://www.arsmachina.com.br
Re: tapestry-jpa: JpaGridDataSource sort by a transient field
HI Igor, I have a small Maven project to demonstrate this problem, can I send it as a zip file to your personal gmail address? Thanks, Yunhua On Mon, Jul 11, 2011 at 5:19 PM, Igor Drobiazko igor.drobia...@gmail.comwrote: Can you please provide more details? Perfectly some source code to reproduce the issue. On Mon, Jul 11, 2011 at 11:06 PM, Richard Yunhua Sang yunhua.s...@gmail.com wrote: Hi there, I am using a Grid with JpaGridDataSource; when I click sort icon on a transient field of an entity, I get following exception: Caused by: java.lang.IllegalArgumentException: Unable to resolve attribute [name] against path at org.hibernate.ejb.criteria.path.AbstractPathImpl.unknownAttribute(AbstractPathImpl.java:118) at org.hibernate.ejb.criteria.path.AbstractPathImpl.locateAttribute(AbstractPathImpl.java:223) at org.hibernate.ejb.criteria.path.AbstractPathImpl.get(AbstractPathImpl.java:194) at org.apache.tapestry5.jpa.JpaGridDataSource.prepare(JpaGridDataSource.java:98) at org.apache.tapestry5.corelib.components.Grid$CachingDataSource.prepare(Grid.java:311) at org.apache.tapestry5.corelib.components.Grid.setupDataSource(Grid.java:481) at org.apache.tapestry5.corelib.components.Grid.setupRender(Grid.java:445) at org.apache.tapestry5.corelib.components.Grid$Shim_415c794d27985.invoke(Unknown Source) at org.apache.tapestry5.internal.plastic.MethodHandleImpl.invoke(MethodHandleImpl.java:48) at org.apache.tapestry5.internal.transform.BridgeClassTransformation$WrapMethodHandleAsMethodAccess.invoke(BridgeClassTransformation.java:85) at org.apache.tapestry5.internal.transform.RenderPhaseMethodWorker$Invoker.invoke(RenderPhaseMethodWorker.java:117) at org.apache.tapestry5.internal.transform.RenderPhaseMethodWorker$RenderPhaseMethodAdvice.advise(RenderPhaseMethodWorker.java:86) at org.apache.tapestry5.internal.transform.BridgeClassTransformation$WrapMethodAdviceAsComponentMethodAdvice.advise(BridgeClassTransformation.java:349) at org.apache.tapestry5.internal.plastic.AbstractMethodInvocation.proceed(AbstractMethodInvocation.java:86) at org.apache.tapestry5.corelib.components.Grid.setupRender(Grid.java) at org.apache.tapestry5.internal.structure.ComponentPageElementImpl$SetupRenderPhase.invokeComponent(ComponentPageElementImpl.java:230) at org.apache.tapestry5.internal.structure.ComponentPageElementImpl$AbstractPhase.invoke(ComponentPageElementImpl.java:191) Also can JpaGridDataSource provide the way to sort the result at local instead of database? Overall it's pleasant to work with JPA module, thanks a lot for the great job! Yunhua -- Best regards, Igor Drobiazko http://tapestry5.de
Re: tapestry-jpa: JpaGridDataSource sort by a transient field
Hi Richard, Internally JPAGridDataSource does not handle sorting itself, instead it delegates it to JPA and transient values are unknown to JPA. If you want to handle transient values, you will have to write you own implementation of GridDataSource where in you can retrieve all the rows from the database and based on the SortConstraints passed to prepare() method, sort the values yourself. regards Taha On Tue, Jul 12, 2011 at 4:58 AM, Richard Yunhua Sang yunhua.s...@gmail.comwrote: Thanks for your reply, but I do want to sort the result by transient field in Grid. It would be appreciated that the JPAGridDataSource is able to sort the result within JVM. On Mon, Jul 11, 2011 at 5:29 PM, Thiago H. de Paula Figueiredo thiag...@gmail.com wrote: On Mon, 11 Jul 2011 18:06:17 -0300, Richard Yunhua Sang yunhua.s...@gmail.com wrote: Hi there, Hi! I am using a Grid with JpaGridDataSource; when I click sort icon on a transient field of an entity, I get following exception: I don't think any GridDataSource implementation backed by a database would be able to handle transient properties, so you should set their corresponding PropertyModel's as unsortable. To get the PropertyModel, create a BeanModel for you entity class using the BeanModelSource service and use its get() method. -- Thiago H. de Paula Figueiredo Independent Java, Apache Tapestry 5 and Hibernate consultant, developer, and instructor Owner, Ars Machina Tecnologia da Informação Ltda. http://www.arsmachina.com.br
Re: tapestry-jpa: JpaGridDataSource sort by a transient field
Hi Taha,
I have no problem to write a new GridDataSource to do such thing; but as I
said, it would be good to have this function in JPAGridDataSource.
e.g.
@Entity
public class Student {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
private String firstName;
private String lastName;
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
@Transient
public String getName() {
return firstName + + lastName;
}
}
The users may want to show name only, and want to sort the list by name
naturally.
Thanks,
Yunhua
On Mon, Jul 11, 2011 at 7:43 PM, Taha Hafeez tawus.tapes...@gmail.comwrote:
Hi Richard,
Internally JPAGridDataSource does not handle sorting itself, instead it
delegates it to JPA and transient values are unknown to JPA. If you want to
handle transient values, you will have to write you own implementation of
GridDataSource where in you can retrieve all the rows from the database and
based on the SortConstraints passed to prepare() method, sort the values
yourself.
regards
Taha
On Tue, Jul 12, 2011 at 4:58 AM, Richard Yunhua Sang
yunhua.s...@gmail.comwrote:
Thanks for your reply, but I do want to sort the result by transient
field
in Grid. It would be appreciated that the JPAGridDataSource is able to
sort
the result within JVM.
On Mon, Jul 11, 2011 at 5:29 PM, Thiago H. de Paula Figueiredo
thiag...@gmail.com wrote:
On Mon, 11 Jul 2011 18:06:17 -0300, Richard Yunhua Sang
yunhua.s...@gmail.com wrote:
Hi there,
Hi!
I am using a Grid with JpaGridDataSource; when I click sort icon on a
transient field of an entity, I get following exception:
I don't think any GridDataSource implementation backed by a database
would
be able to handle transient properties, so you should set their
corresponding PropertyModel's as unsortable. To get the PropertyModel,
create a BeanModel for you entity class using the BeanModelSource
service
and use its get() method.
--
Thiago H. de Paula Figueiredo
Independent Java, Apache Tapestry 5 and Hibernate consultant,
developer,
and instructor
Owner, Ars Machina Tecnologia da Informação Ltda.
http://www.arsmachina.com.br
Re: tapestry-jpa: JpaGridDataSource sort by a transient field
Imagine the implementation
if(there_is_a_transient_field)
{
populate_all_data();
sort_yourself_based_on_sort_constraint();
paginate();
}
else
{
pass_the_paging_and_sort_constraints_to_jpa();
}
Instead you already have a JPAGridDataSource and you can have your own
JPAInMemoryGridDataSource implementation :)
regards
Taha
On Tue, Jul 12, 2011 at 5:28 AM, Richard Yunhua Sang
yunhua.s...@gmail.comwrote:
Hi Taha,
I have no problem to write a new GridDataSource to do such thing; but as I
said, it would be good to have this function in JPAGridDataSource.
e.g.
@Entity
public class Student {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
private String firstName;
private String lastName;
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
@Transient
public String getName() {
return firstName + + lastName;
}
}
The users may want to show name only, and want to sort the list by name
naturally.
Thanks,
Yunhua
On Mon, Jul 11, 2011 at 7:43 PM, Taha Hafeez tawus.tapes...@gmail.com
wrote:
Hi Richard,
Internally JPAGridDataSource does not handle sorting itself, instead it
delegates it to JPA and transient values are unknown to JPA. If you want
to
handle transient values, you will have to write you own implementation of
GridDataSource where in you can retrieve all the rows from the database
and
based on the SortConstraints passed to prepare() method, sort the values
yourself.
regards
Taha
On Tue, Jul 12, 2011 at 4:58 AM, Richard Yunhua Sang
yunhua.s...@gmail.comwrote:
Thanks for your reply, but I do want to sort the result by transient
field
in Grid. It would be appreciated that the JPAGridDataSource is able to
sort
the result within JVM.
On Mon, Jul 11, 2011 at 5:29 PM, Thiago H. de Paula Figueiredo
thiag...@gmail.com wrote:
On Mon, 11 Jul 2011 18:06:17 -0300, Richard Yunhua Sang
yunhua.s...@gmail.com wrote:
Hi there,
Hi!
I am using a Grid with JpaGridDataSource; when I click sort icon on
a
transient field of an entity, I get following exception:
I don't think any GridDataSource implementation backed by a database
would
be able to handle transient properties, so you should set their
corresponding PropertyModel's as unsortable. To get the
PropertyModel,
create a BeanModel for you entity class using the BeanModelSource
service
and use its get() method.
--
Thiago H. de Paula Figueiredo
Independent Java, Apache Tapestry 5 and Hibernate consultant,
developer,
and instructor
Owner, Ars Machina Tecnologia da Informação Ltda.
http://www.arsmachina.com.br
Re: tapestry-jpa: JpaGridDataSource sort by a transient field
We solved a similar problem by creating a view that calculated the field instead of using a transient field. Then we just mapped the view as a read only object and all the sorting worked. -Tony On Jul 11, 2011, at 7:28 PM, Richard Yunhua Sang wrote: Thanks for your reply, but I do want to sort the result by transient field in Grid. It would be appreciated that the JPAGridDataSource is able to sort the result within JVM. On Mon, Jul 11, 2011 at 5:29 PM, Thiago H. de Paula Figueiredo thiag...@gmail.com wrote: On Mon, 11 Jul 2011 18:06:17 -0300, Richard Yunhua Sang yunhua.s...@gmail.com wrote: Hi there, Hi! I am using a Grid with JpaGridDataSource; when I click sort icon on a transient field of an entity, I get following exception: I don't think any GridDataSource implementation backed by a database would be able to handle transient properties, so you should set their corresponding PropertyModel's as unsortable. To get the PropertyModel, create a BeanModel for you entity class using the BeanModelSource service and use its get() method. -- Thiago H. de Paula Figueiredo Independent Java, Apache Tapestry 5 and Hibernate consultant, developer, and instructor Owner, Ars Machina Tecnologia da Informação Ltda. http://www.arsmachina.com.br - To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org For additional commands, e-mail: users-h...@tapestry.apache.org
