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Posted to users@myfaces.apache.org by Hemanth Abburi <ja...@gmail.com> on 2008/02/19 05:30:44 UTC
Editable DataTable
Hi !!
I am a newbie to JSF and am working on datatable. I wanted to
create a simple editable datatable.The datatable component in the jsp is as
shown below..
<h:dataTable value="#{table.persons}" var="person" border="1" id="customTable"
>
<h:column>
<f:facet name="header" ><h:outputText value="#{msg.serialNumber}"/></f:facet
>
<h:outputText value="#{person.name}"/>
</h:column>
<h:column>
<f:facet name="header"><h:outputText value="#{msg.exp}"/></f:facet>
<h:inputText value="#{person.age}"/>
</h:column>
</h:dataTable>
I just want to know how i can get the values of "name" and "age" which are
members of a class person.
The managed bean contains of a list by the name "persons" which consists of
objects of type "person".
Thanks,
Hemanth.
Re: Editable DataTable
Posted by Rafa Pérez <ra...@gmail.com>.
InputText implements EditableValueHolder, so it should be submitted to the
server.
On Thu, Feb 21, 2008 at 10:02 AM, Hemanth Abburi <ja...@gmail.com>
wrote:
> I think the values submitted in the input fields present in the datatable
> don't get populated into the managed beans because
> HtmlDataTable *extends* javax.faces.component.UIData which* extends*
> javax.faces.component.UIComponentBase....
> As UIData *doesn't* implement EditableValueHolder interface ( which has
> setSubmittedValues() method ) the values submitted in the datatable don't
> get updated to the managed bean because the setter (mutator) method for the
> list will not get called.
> If I am right, then how do I update the values in the list present in the
> managed bean which is used by the datatable?
>
> On 2/20/08, Andrew Robinson <an...@gmail.com> wrote:
> >
> > Just make sure Person has setName(String) and setAge(Number) methods.
> > You may need to use number converters with the age to work with
> > different number types.
> >
> > -Andrew
> >
> > On Wed, Feb 20, 2008 at 12:48 AM, Rafa Pérez <ra...@gmail.com> wrote:
> > > This is not neccesary. Because of the ValueBinding for the InputText,
> > when
> > > you submit the form every object of the list of persons gets updated
> > with
> > > the values you entered in the table. This way, you only have to do:
> > >
> > > for(Person person : persons) {
> > >
> > > System.out.println(person.getName());
> > > System.out.println(person.getAge());
> > > }
> > >
> > >
> > > HTH,
> > >
> > > - - Rafa
> > >
> > >
> > >
> > > On Feb 20, 2008 7:53 AM, Hemanth Abburi <ja...@gmail.com>
> > wrote:
> > >
> > > >
> > > > Hi,
> > > > Thanks for the prompt reply.
> > > > What I meant by getting the values was "How can I retrieve
> > the
> > > values which the user has entered in the inputText field of the
> > datatable?".
> > > > I found out a solution but don't know whether it's a
> > standard
> > > one or not.
> > > > I used the following code in the managed bean to get
> > the
> > > values submitted in the form.
> > > >
> > > > UIComponent comp =
> > > FacesContext.getCurrentInstance
> > ().getViewRoot().findComponent("myform");
> > > > List l=comp.getChildren();
> > > > Iterator itr = l.iterator();
> > > > while(itr.hasNext()){
> > > > Object obj=itr.next();
> > > >
> > > > if( obj instanceof UIData){
> > > > UIData uIData=(UIData)obj;
> > > > System.out.println("UIData "+ uIData);
> > > > HtmlDataTable myTable = (HtmlDataTable)uIData;
> > > >
> > > > for(int i=0;i<myTable.getRowCount();i++){
> > > > myTable.setRowIndex(i);
> > > > Person person = new Person();
> > > > person = (Person) myTable.getRowData();
> > > > System.out.println(person.getName());
> > > > System.out.println(person.getAge());
> > > >
> > > > }
> > > > person.getName() and person.getAge() are giving me the edited
> > values.
> > > > Is there any other way by which I can get them?
> > > > I can use "binding" but I would not like to use it.
> > > >
> > > >
> > > >
> > > >
> > > > On 2/19/08, Andrew Robinson <an...@gmail.com> wrote:
> > > > > your code is correct.
> > > > >
> > > > > #{person.name} invokes <Person instance>.getName()
> > > > > #{person.age} invokes <Person instance>.getAge()
> > > > >
> > > > > On Feb 18, 2008 9:30 PM, Hemanth Abburi <ja...@gmail.com>
> > wrote:
> > > > > > Hi !!
> > > > > > I am a newbie to JSF and am working on datatable. I
> > wanted
> > > to
> > > > > > create a simple editable datatable.The datatable component in
> > the jsp
> > > is as
> > > > > > shown below..
> > > > > >
> > > > > >
> > > > > >
> > > > > > <h:dataTable value="#{table.persons}" var="person" border="1"
> > > > > > id="customTable" >
> > > > > >
> > > > > > <h:column>
> > > > > >
> > > > > > <f:facet name="header" ><h:outputText
> > > > > > value="#{msg.serialNumber}"/></f:facet>
> > > > > >
> > > > > > <h:outputText value="#{person.name}"/>
> > > > > >
> > > > > > </h:column>
> > > > > >
> > > > > > <h:column>
> > > > > >
> > > > > > <f:facet name="header"><h:outputText value="#{msg.exp
> > }"/></f:facet>
> > > > > >
> > > > > > <h:inputText value="#{person.age}"/>
> > > > > >
> > > > > > </h:column>
> > > > > >
> > > > > > </h:dataTable>
> > > > > >
> > > > > > I just want to know how i can get the values of "name" and "age"
> > which
> > > are
> > > > > > members of a class person.
> > > > > >
> > > > > > The managed bean contains of a list by the name "persons" which
> > > consists of
> > > > > > objects of type "person".
> > > > > >
> > > > > > Thanks,
> > > > > >
> > > > > > Hemanth.
> > > > >
> > > >
> > > >
> > >
> > >
> >
>
>
Re: Editable DataTable
Posted by Hemanth Abburi <ja...@gmail.com>.
I think the values submitted in the input fields present in the datatable
don't get populated into the managed beans because
HtmlDataTable *extends* javax.faces.component.UIData which* extends*
javax.faces.component.UIComponentBase....
As UIData *doesn't* implement EditableValueHolder interface ( which has
setSubmittedValues() method ) the values submitted in the datatable don't
get updated to the managed bean because the setter (mutator) method for the
list will not get called.
If I am right, then how do I update the values in the list present in the
managed bean which is used by the datatable?
On 2/20/08, Andrew Robinson <an...@gmail.com> wrote:
>
> Just make sure Person has setName(String) and setAge(Number) methods.
> You may need to use number converters with the age to work with
> different number types.
>
> -Andrew
>
> On Wed, Feb 20, 2008 at 12:48 AM, Rafa Pérez <ra...@gmail.com> wrote:
> > This is not neccesary. Because of the ValueBinding for the InputText,
> when
> > you submit the form every object of the list of persons gets updated
> with
> > the values you entered in the table. This way, you only have to do:
> >
> > for(Person person : persons) {
> >
> > System.out.println(person.getName());
> > System.out.println(person.getAge());
> > }
> >
> >
> > HTH,
> >
> > - - Rafa
> >
> >
> >
> > On Feb 20, 2008 7:53 AM, Hemanth Abburi <ja...@gmail.com> wrote:
> >
> > >
> > > Hi,
> > > Thanks for the prompt reply.
> > > What I meant by getting the values was "How can I retrieve
> the
> > values which the user has entered in the inputText field of the
> datatable?".
> > > I found out a solution but don't know whether it's a
> standard
> > one or not.
> > > I used the following code in the managed bean to get the
> > values submitted in the form.
> > >
> > > UIComponent comp =
> > FacesContext.getCurrentInstance().getViewRoot().findComponent("myform");
> > > List l=comp.getChildren();
> > > Iterator itr = l.iterator();
> > > while(itr.hasNext()){
> > > Object obj=itr.next();
> > >
> > > if( obj instanceof UIData){
> > > UIData uIData=(UIData)obj;
> > > System.out.println("UIData "+ uIData);
> > > HtmlDataTable myTable = (HtmlDataTable)uIData;
> > >
> > > for(int i=0;i<myTable.getRowCount();i++){
> > > myTable.setRowIndex(i);
> > > Person person = new Person();
> > > person = (Person) myTable.getRowData();
> > > System.out.println(person.getName());
> > > System.out.println(person.getAge());
> > >
> > > }
> > > person.getName() and person.getAge() are giving me the edited values.
> > > Is there any other way by which I can get them?
> > > I can use "binding" but I would not like to use it.
> > >
> > >
> > >
> > >
> > > On 2/19/08, Andrew Robinson <an...@gmail.com> wrote:
> > > > your code is correct.
> > > >
> > > > #{person.name} invokes <Person instance>.getName()
> > > > #{person.age} invokes <Person instance>.getAge()
> > > >
> > > > On Feb 18, 2008 9:30 PM, Hemanth Abburi <ja...@gmail.com>
> wrote:
> > > > > Hi !!
> > > > > I am a newbie to JSF and am working on datatable. I
> wanted
> > to
> > > > > create a simple editable datatable.The datatable component in the
> jsp
> > is as
> > > > > shown below..
> > > > >
> > > > >
> > > > >
> > > > > <h:dataTable value="#{table.persons}" var="person" border="1"
> > > > > id="customTable" >
> > > > >
> > > > > <h:column>
> > > > >
> > > > > <f:facet name="header" ><h:outputText
> > > > > value="#{msg.serialNumber}"/></f:facet>
> > > > >
> > > > > <h:outputText value="#{person.name}"/>
> > > > >
> > > > > </h:column>
> > > > >
> > > > > <h:column>
> > > > >
> > > > > <f:facet name="header"><h:outputText value="#{msg.exp
> }"/></f:facet>
> > > > >
> > > > > <h:inputText value="#{person.age}"/>
> > > > >
> > > > > </h:column>
> > > > >
> > > > > </h:dataTable>
> > > > >
> > > > > I just want to know how i can get the values of "name" and "age"
> which
> > are
> > > > > members of a class person.
> > > > >
> > > > > The managed bean contains of a list by the name "persons" which
> > consists of
> > > > > objects of type "person".
> > > > >
> > > > > Thanks,
> > > > >
> > > > > Hemanth.
> > > >
> > >
> > >
> >
> >
>
Re: Editable DataTable
Posted by Andrew Robinson <an...@gmail.com>.
Just make sure Person has setName(String) and setAge(Number) methods.
You may need to use number converters with the age to work with
different number types.
-Andrew
On Wed, Feb 20, 2008 at 12:48 AM, Rafa Pérez <ra...@gmail.com> wrote:
> This is not neccesary. Because of the ValueBinding for the InputText, when
> you submit the form every object of the list of persons gets updated with
> the values you entered in the table. This way, you only have to do:
>
> for(Person person : persons) {
>
> System.out.println(person.getName());
> System.out.println(person.getAge());
> }
>
>
> HTH,
>
> - - Rafa
>
>
>
> On Feb 20, 2008 7:53 AM, Hemanth Abburi <ja...@gmail.com> wrote:
>
> >
> > Hi,
> > Thanks for the prompt reply.
> > What I meant by getting the values was "How can I retrieve the
> values which the user has entered in the inputText field of the datatable?".
> > I found out a solution but don't know whether it's a standard
> one or not.
> > I used the following code in the managed bean to get the
> values submitted in the form.
> >
> > UIComponent comp =
> FacesContext.getCurrentInstance().getViewRoot().findComponent("myform");
> > List l=comp.getChildren();
> > Iterator itr = l.iterator();
> > while(itr.hasNext()){
> > Object obj=itr.next();
> >
> > if( obj instanceof UIData){
> > UIData uIData=(UIData)obj;
> > System.out.println("UIData "+ uIData);
> > HtmlDataTable myTable = (HtmlDataTable)uIData;
> >
> > for(int i=0;i<myTable.getRowCount();i++){
> > myTable.setRowIndex(i);
> > Person person = new Person();
> > person = (Person) myTable.getRowData();
> > System.out.println(person.getName());
> > System.out.println(person.getAge());
> >
> > }
> > person.getName() and person.getAge() are giving me the edited values.
> > Is there any other way by which I can get them?
> > I can use "binding" but I would not like to use it.
> >
> >
> >
> >
> > On 2/19/08, Andrew Robinson <an...@gmail.com> wrote:
> > > your code is correct.
> > >
> > > #{person.name} invokes <Person instance>.getName()
> > > #{person.age} invokes <Person instance>.getAge()
> > >
> > > On Feb 18, 2008 9:30 PM, Hemanth Abburi <ja...@gmail.com> wrote:
> > > > Hi !!
> > > > I am a newbie to JSF and am working on datatable. I wanted
> to
> > > > create a simple editable datatable.The datatable component in the jsp
> is as
> > > > shown below..
> > > >
> > > >
> > > >
> > > > <h:dataTable value="#{table.persons}" var="person" border="1"
> > > > id="customTable" >
> > > >
> > > > <h:column>
> > > >
> > > > <f:facet name="header" ><h:outputText
> > > > value="#{msg.serialNumber}"/></f:facet>
> > > >
> > > > <h:outputText value="#{person.name}"/>
> > > >
> > > > </h:column>
> > > >
> > > > <h:column>
> > > >
> > > > <f:facet name="header"><h:outputText value="#{msg.exp}"/></f:facet>
> > > >
> > > > <h:inputText value="#{person.age}"/>
> > > >
> > > > </h:column>
> > > >
> > > > </h:dataTable>
> > > >
> > > > I just want to know how i can get the values of "name" and "age" which
> are
> > > > members of a class person.
> > > >
> > > > The managed bean contains of a list by the name "persons" which
> consists of
> > > > objects of type "person".
> > > >
> > > > Thanks,
> > > >
> > > > Hemanth.
> > >
> >
> >
>
>
Re: Editable DataTable
Posted by Rafa Pérez <ra...@gmail.com>.
This is not neccesary. Because of the ValueBinding for the InputText, when
you submit the form every object of the list of persons gets updated with
the values you entered in the table. This way, you only have to do:
for(Person person : persons) {
System.out.println(person.getName());
System.out.println(person.getAge());
}
HTH,
- - Rafa
On Feb 20, 2008 7:53 AM, Hemanth Abburi <ja...@gmail.com> wrote:
> Hi,
> Thanks for the prompt reply.
> What I meant by getting the values was "How can I retrieve the
> values which the user has entered in the inputText field of the datatable?".
> I found out a solution but don't know whether it's a standard
> one or not.
> I used the following code in the managed bean to get the
> values submitted in the form.
>
> UIComponent comp = FacesContext.getCurrentInstance
> ().getViewRoot().findComponent("myform");
> List l=comp.getChildren();
> Iterator itr = l.iterator();
> while(itr.hasNext()){
> Object obj=itr.next();
>
> if( obj instanceof UIData){
> UIData uIData=(UIData)obj;
> System.out.println("UIData "+ uIData);
> HtmlDataTable myTable = (HtmlDataTable)uIData;
>
> for(int i=0;i<myTable.getRowCount();i++){
> myTable.setRowIndex(i);
> Person person = new Person();
> person = (Person) myTable.getRowData();
> System.out.println(person.getName());
> System.out.println(person.getAge());
>
> }
> person.getName() and person.getAge() are giving me the edited values.
> Is there any other way by which I can get them?
> I can use "binding" but I would not like to use it.
>
> On 2/19/08, Andrew Robinson <an...@gmail.com> wrote:
> >
> > your code is correct.
> >
> > #{person.name} invokes <Person instance>.getName()
> > #{person.age} invokes <Person instance>.getAge()
> >
> > On Feb 18, 2008 9:30 PM, Hemanth Abburi <ja...@gmail.com> wrote:
> > > Hi !!
> > > I am a newbie to JSF and am working on datatable. I wanted
> > to
> > > create a simple editable datatable.The datatable component in the jsp
> > is as
> > > shown below..
> > >
> > >
> > >
> > > <h:dataTable value="#{table.persons}" var="person" border="1"
> > > id="customTable" >
> > >
> > > <h:column>
> > >
> > > <f:facet name="header" ><h:outputText
> > > value="#{msg.serialNumber}"/></f:facet>
> > >
> > > <h:outputText value="#{person.name}"/>
> > >
> > > </h:column>
> > >
> > > <h:column>
> > >
> > > <f:facet name="header"><h:outputText value="#{msg.exp}"/></f:facet>
> > >
> > > <h:inputText value="#{person.age}"/>
> > >
> > > </h:column>
> > >
> > > </h:dataTable>
> > >
> > > I just want to know how i can get the values of "name" and "age" which
> > are
> > > members of a class person.
> > >
> > > The managed bean contains of a list by the name "persons" which
> > consists of
> > > objects of type "person".
> > >
> > > Thanks,
> > >
> > > Hemanth.
> >
>
>
Re: Editable DataTable
Posted by Hemanth Abburi <ja...@gmail.com>.
Hi,
Thanks for the prompt reply.
What I meant by getting the values was "How can I retrieve the
values which the user has entered in the inputText field of the datatable?".
I found out a solution but don't know whether it's a standard one
or not.
I used the following code in the managed bean to get the values
submitted in the form.
UIComponent comp = FacesContext.getCurrentInstance
().getViewRoot().findComponent("myform");
List l=comp.getChildren();
Iterator itr = l.iterator();
while(itr.hasNext()){
Object obj=itr.next();
if( obj instanceof UIData){
UIData uIData=(UIData)obj;
System.out.println("UIData "+ uIData);
HtmlDataTable myTable = (HtmlDataTable)uIData;
for(int i=0;i<myTable.getRowCount();i++){
myTable.setRowIndex(i);
Person person = new Person();
person = (Person) myTable.getRowData();
System.out.println(person.getName());
System.out.println(person.getAge());
}
person.getName() and person.getAge() are giving me the edited values.
Is there any other way by which I can get them?
I can use "binding" but I would not like to use it.
On 2/19/08, Andrew Robinson <an...@gmail.com> wrote:
>
> your code is correct.
>
> #{person.name} invokes <Person instance>.getName()
> #{person.age} invokes <Person instance>.getAge()
>
> On Feb 18, 2008 9:30 PM, Hemanth Abburi <ja...@gmail.com> wrote:
> > Hi !!
> > I am a newbie to JSF and am working on datatable. I wanted to
> > create a simple editable datatable.The datatable component in the jsp is
> as
> > shown below..
> >
> >
> >
> > <h:dataTable value="#{table.persons}" var="person" border="1"
> > id="customTable" >
> >
> > <h:column>
> >
> > <f:facet name="header" ><h:outputText
> > value="#{msg.serialNumber}"/></f:facet>
> >
> > <h:outputText value="#{person.name}"/>
> >
> > </h:column>
> >
> > <h:column>
> >
> > <f:facet name="header"><h:outputText value="#{msg.exp}"/></f:facet>
> >
> > <h:inputText value="#{person.age}"/>
> >
> > </h:column>
> >
> > </h:dataTable>
> >
> > I just want to know how i can get the values of "name" and "age" which
> are
> > members of a class person.
> >
> > The managed bean contains of a list by the name "persons" which consists
> of
> > objects of type "person".
> >
> > Thanks,
> >
> > Hemanth.
>
Re: Editable DataTable
Posted by Andrew Robinson <an...@gmail.com>.
your code is correct.
#{person.name} invokes <Person instance>.getName()
#{person.age} invokes <Person instance>.getAge()
On Feb 18, 2008 9:30 PM, Hemanth Abburi <ja...@gmail.com> wrote:
> Hi !!
> I am a newbie to JSF and am working on datatable. I wanted to
> create a simple editable datatable.The datatable component in the jsp is as
> shown below..
>
>
>
> <h:dataTable value="#{table.persons}" var="person" border="1"
> id="customTable" >
>
> <h:column>
>
> <f:facet name="header" ><h:outputText
> value="#{msg.serialNumber}"/></f:facet>
>
> <h:outputText value="#{person.name}"/>
>
> </h:column>
>
> <h:column>
>
> <f:facet name="header"><h:outputText value="#{msg.exp}"/></f:facet>
>
> <h:inputText value="#{person.age}"/>
>
> </h:column>
>
> </h:dataTable>
>
> I just want to know how i can get the values of "name" and "age" which are
> members of a class person.
>
> The managed bean contains of a list by the name "persons" which consists of
> objects of type "person".
>
> Thanks,
>
> Hemanth.