Pagination in JSF

Hi,
i'm new to JSF ,
i just done a sample program which lists all the records through datatable. how to apply pagination concept to this datatable.
thanks in advance

Check Using datatables � Paging datatable.

Similar Messages

JSF multiple update with pagination

Hi,
is there someone out there who can help me have multiple update while using pagination in JSF? a working snippet is greatly appreciated. i need it ASAP. thanks

Well, my friend, that's not much to work with.
Multiple update?
Pagination?
I don't think you'll solve this with a snippet.
It's a bit more complicated then that and we'll need more specific issues or the reply will be 10 pages long :)
Write some specific questions and I'll try answering them.
Cheers.

ADF ProcessScope -- I get a new AdfFacesContext on each page load

I am trying to store some variables in the ADF processScope. But the next time the page is loaded and calls the managed bean methods, the AdfFacesContext is different, and so the processScope is empty. The managed bean is session scope, and I am setting the processScope variables in the bean's Java code.
In particular this happens when I click on the af:table pagination links, e.g. the "next 25".
How can I get access to the same AdfFacesContext (and therefore the same processScope) the next time the page loads and calls the managed bean?
I am using JDeveloper 10.1.3.3.0.
Here is the example code, and the output that is produced from my System.out.println statements:
========== Controller.java (session scope managed bean) ===============
package adfproject;
import java.util.Map;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import oracle.adf.view.faces.context.AdfFacesContext;
public class Controller {
private List<Map> list = new ArrayList<Map>();
private String label;
private static int counter;
public Controller() {
// initialize list with Map objects
for ( int i = 1; i<10 ; i++) {
Map map = new HashMap();
map.put("A","first column");
map.put("B", "row " + i);
list.add(map);
// called from JSP to initialize the ECO bean
public String getLoad() {
printAdfProcessContext("in getLoad");
// get value from current process scope
String currentLabel = (String)getProcessAttribute("LABEL");
// print currentLabel
System.out.println("current LABEL = "+currentLabel);
// if currentLabel null, build new one with counter, incr counter
if (currentLabel == null) {
label = "xyz " + ++counter;
System.out.println("new LABEL: "+label);
// remember the current label in the process scope, and in member
setProcessAttribute("LABEL",label);
return ""; // empty string so nothing is displayed on web page
public static void printAdfProcessContext(String label) {
AdfFacesContext afCtx = AdfFacesContext.getCurrentInstance();
System.out.println("============ "+label+" ===========");
System.out.println("AdfFacesContext = "+afCtx);
Map ps = afCtx.getProcessScope();
System.out.println("Process scope = "+ps);
* Get attribute from ADF "processScope".
* This is a special scope provided by ADF which is in between Session
* and Request.
* @param name attribute name
* @return
public static Object getProcessAttribute(String name) {
AdfFacesContext afCtx = AdfFacesContext.getCurrentInstance();
return afCtx.getProcessScope().get(name);
* Add or overwrite attribute in ADF "processScope".
* This is a special JSF "scope" provided by ADF Faces which is somewhere
* between Session scope and Request scope. It can be accessed in JSF
* pages using the EL expression #{processScope.myAttribute}.
* @param name attribute name
* @param value attribute value
* @return
public static void setProcessAttribute(String name, Object value) {
AdfFacesContext afCtx = AdfFacesContext.getCurrentInstance();
afCtx.getProcessScope().put(name,value);
public String getLabel() {
return label;
public List<Map> getList() {
return list;
============= jsftest.jsp =====================
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<%@ page contentType="text/html;charset=windows-1252"%>
<%@ taglib uri="http://java.sun.com/jsf/html" prefix="h"%>
<%@ taglib uri="http://java.sun.com/jsf/core" prefix="f"%>
<%@ taglib uri="http://xmlns.oracle.com/adf/faces" prefix="af"%>
<%@ taglib uri="http://xmlns.oracle.com/adf/faces/html" prefix="afh"%>
<f:view>
<afh:html>
<afh:head title="ADF Context Test">
<meta http-equiv="Content-Type"
content="text/html; charset=windows-1252"/>
</afh:head>
<afh:body>
<h:form>
<af:outputText value="#{controller.load}"/>
<h:panelGrid columns="2">
<af:outputLabel value="LABEL"/>
<af:outputText value="#{controller.label}"/>
<af:outputLabel value="Map"/>
<af:table emptyText="No items were found" value="#{controller.list}"
var="row" rows="4">
<af:column sortable="false" headerText="A" formatType="text">
<af:outputText value="#{row.A}"/>
</af:column>
<af:column sortable="false" headerText="B" formatType="text">
<af:outputText value="#{row.B}"/>
</af:column>
</af:table>
</h:panelGrid>
</h:form>
</afh:body>
</afh:html>
</f:view>
================= Console Output when page loads initially ==================
08/09/03 15:27:18 ============ in getLoad ===========
08/09/03 15:27:18 AdfFacesContext = oracle.adfinternal.view.faces.context.AdfFacesContextImpl@101751
08/09/03 15:27:18 Process scope = ProcessScopeMap@7009019[_map={}, token=null,children=null]
08/09/03 15:27:18 current LABEL = null
08/09/03 15:27:18 new LABEL: xyz 1
======= Console Output when I click the "next 4" link on the table, and the page reloads ========
08/09/03 15:32:42 ============ in getLoad ===========
08/09/03 15:32:42 AdfFacesContext = oracle.adfinternal.view.faces.context.AdfFacesContextImpl@16bf9ce
08/09/03 15:32:42 Process scope = ProcessScopeMap@31287037[_map={}, token=null,children=null]
08/09/03 15:32:42 current LABEL = null
08/09/03 15:32:42 new LABEL: xyz 2
====== Comments =========
As you can see above, the AdfFacesContextImpl object has changed, so I have lost the ProcessScopeMap.
Also, on the displayed page, the label is still "xyz 1" instead of changing to "xyz 2".
Thanks for your help,
JbL

Thanks for the idea, Murph.
I didn't need a session scope bean, request would be fine, I just was trying to make something work that would allow me access to the process scope attributes. I want to allow multiple browser windows searching on different objects independently, so I don't want to use session scope.
I tried removing the variable declaration and setting/getting the processScope attribute in the setter/getter methods, to make the process scope attributes independent of the managed bean. But each time the page loads (by clicking the table navigation links), I still lose the process scope attributes. I tried with both session and request scope beans. Either way, in the getLoad() method, when I try to get the label from the process scope (using the new version of getLabel()), it is null.
So the root problem is still there.
For continued discussion on this more specific problem, see my separate thread "JSF ProcessScope attribute missing on page reload from af:table pagination"
at JSF ProcessScope attribute missing on page reload from af:table pagination

HtmlDataTable rendering is resulting into java.lang.OutofMemoryException

Requirement is such that thousands or records are to be displayed in data table in single page without pagination.
--> JSF data table while rendering consumes lots of heap memory which is throwing out of memory exception.
--> If we renders some limited rows in data table that is getting rendered but its not releasing memory once the page is rendered.Data table is in bean in session scope ( tried it with request scope but its not making any difference.)
--> State saving method is "Client".
--> Cant increase heap size due to some limitations
Anticipating solution which can help to release memory once data table is rendered or if possible consumes less heap while rendering objects.

here we are not manipulating those rows we just display the records, and while displaying it consumes lots of heap memory ....may be internally jsf apis for data table is creating some objects.......
Need to have solution so that we can avoid using server memory.................i think putting that bean in application scope wont be effective...... or please provide detail description of how it will resolve our problem..... i hope u got the problem

Renderer difference

Hi
I have spent a couple of hours to make a result pagination in jsf.
<h:commandLink actionListener="#{goodbyeBean.prev}" >
<h:outputText value="prev" rendered="#{goodbyeBean.pageNo > -3}"/>
<f:param value="#{goodbyeBean.pageNo - 1}" name="pageNo"/>
</h:commandLink>
<h:commandLink actionListener="#{goodbyeBean.next}">
<h:outputText value="next" rendered="#{goodbyeBean.pageNo < 0}"/>
<f:param value="#{goodbyeBean.pageNo + 1}" name="pageNo"/>
</h:commandLink>
goodbyeBean is a request bean. On the first page i hide next link and then when pageNo = -3 i hide prev link.
I have spent so much time and finally found solution for hiding links- which i present above. In a first turn, i had render attribute set to commandLink tag, i.e.
<h:commandLink actionListener="#{goodbyeBean.next}" rendered="#{goodbyeBean.pageNo < 0}">
<h:outputText value="next"/>
And i had a real problems with next link. On the first page i had a chance to click on prev - which is ok. When the page was redispalyed next link appeared, but if i clicked it , goodbyeBean.next function wasn't fired.
Update Model phase was reached cause i saw a new value in pageNo http request parameter but that's all.
If i clicked prev link twice and then click next everything seems to be ok and goodbyeBean.next is fired. But this time i should also be able to click on next again (i had clicked prev twice before) but goodbyeBean.next isn't fired again after the second next click.
I found solution in one of the example but can anyone explain me this weird behaviour ??

Hi
Switching to action doesn't change anything. No changes.
As i wrote before i have a solution to my problema but i would like to know what it means to add renderer attribute to h:commandLink.
And what happens if this link finally appears.
That makes sense because on page load
the phases encountered are Restore View and then it
jumps to Render Response.I do not get it. If i click on prev link i have my action fired. The result of this action is redisplayed page but this time i show next button. If i click on next ,lifecycle of JSF should start again. And if i bind link or button to some bean's method this method should be fired.
So i do not get that on page load the phases encountered are Restore View and then it jumps to Render Response. I think this scenario happens if i i type URL to browsers address bar. But in my situation the page was redispalyed because i clicked command link (what is equals to clicking on submitt button).

Same logical outcome from multiple commands

Hello,
I have several command components with the same logical outcome. Is there any way to find out which command supplied the logical outcome after navigation has occured? Perhaps using the command ID?
Thanks

Thanks. That was really helpful, I read the Java EE 5 tutorial (not completely, but I read parts one, three and four) and I believe it didn't mention this, I have to double check that. It would be a strange omission for a 1344 page tutorial.
Unfortunately, what I really need is some programmatic way of checking the source of the outcome. The reason is that the commands aren't static, they're generated dynamically based on data pulled from a database.
Here is a more detailed, real-world description of what I'm trying to do:
I present a number of resources to the user in a tabular way (actually the resources are developers, which are indeed called "resources"), resources taken from a database. After a resource has been inserted it can be modified and deleted. I want to have a separate modify/remove commandButton (or commandLink, doesn't matter) for each resource (row). (I also want a global remove, which removes rows selected with a selectBooleanCheckbox.)
And some time later I want to add pagination to the application, because I'm expecting to see more than a page's worth of resources.
I'm really new to JSF and Java EE in general. My previous Web development endeavors were with PHP and I got used to reinventing the weel. I was wondering is there an "industry standard" solution to pagination using JSF?
Thanks for you response,
Csabi

JSF Custom component for table pagination and sorting

hi
i want such a custom component that render a table and table has the features of pagination and column sorting.
any one know from where i can get such a custom component.
(if this component is available with source then it would be more help full for me)
thnks & regards,
Haroon
Message was edited by:
HaroonAnwarPADHYAR

I know two companies that offer JSF component for table pagination and sorting and AJAX based :
http://www.teamdev.com/quipukit/demo/datatable/DataTable_filteringAndPaging.jsf
http://java.samples.infragistics.com/NetAdvantage/JSF/2006.1/
The problem? They are not open source..
And I am too looking forward on this subject, because I want to develop my own custom component and add some features. If someone has any tips, references or samples of their own, it would be really appreciated.
Thank you.
Paul

Suggestions for JSF table with sortale columns and Pagination

Hi,
My JSF application needs a table with sortable columns and also pagination.
Thank you.

Just add a bunch of commandlinks and/or commandbuttons at the right locations and invoke the appropriate logic in the backing bean.
You can find some useful insights in this article: [http://balusc.blogspot.com/2006/06/using-datatables.html].

Pagination - hibernate with JSF table using ObjectListDataProvider

Hello All,
How we can use the JSF table component & pagination option avilable in JSC for records pagination using ObjectListDataProvider? Let say I have 100 recorsd and I want to do pagination of them of Page Size = 5 (total pages 20), then how to proceed?
We have the hibernate working with JSC, and now I am looking for this advanced implementation using JSC & Hibernate.
Surya
--Thoughts can bring change

I have a problem with pagination and hibernate and I want to take a ride on your question: when the page is loaded I load all data from database. Then I have a filter I made that retrieves some of the data and reloads the table, and that works fine. But when I hit the next page button, the table goes to second page, but without the filter, i.e, with all data again.
I think it has someting to do with the place where I do the initial load, with full data. I've put this code in _init:
    private void _init() throws Exception {
        try {
            Integer empresaId = new Integer(this.getSessionBean1().getCodEmpresaLog());
                getSessionBean1().getTituloReceberDataProvider().atualizaListaTitulos(empresaId);
        } catch(Exception ex) {
            log("Erro para pegar empresas : ", ex);
            error("Erro para pegar empresas : " + ex.getMessage());
    }And to filter, I use this method, called by a button:
getSessionBean1().getTituloReceberDataProvider().filtraListaTitulos(empresaId, sCodCliente, sSituacao, dataDe, dataA);This method repopulates the dataset and it works, but when I change pages it loads full data again. Someone has some light to shed on this?
Thanks in advance!

Tomahawk JSF pagination display style

I am new to JSF.
I am using tomahawk data scroller. My requirement is to display pagination like below
<previous> page x of y <next> .
If I am entering any thing inside <facet name ="previous" those are not displayed as I wish. Please let me know How to do this.

Ah OK, I now see and understand your problem.
Sorry, I can't give a detailed answer on this as I've never used the t:dataScroller before. How does the generated HTML output look like? You could play a bit with CSS to align out the positioning. Does it maybe help if you add the <h:outputText value="#{PageIndex} of #{PageCount}"/> to the first facet?
E.g.
<f:facet name="previous">
    <h:panelGroup>
        <h:outputText value="Previous Page"/>
        <h:outputText value="#{PageIndex} of #{PageCount}"/>
    </h:panelGroup>
</f:facet>
<f:facet name="next"><h:outputText value="Next Page"/></f:facet>

JSF tr:table pagination Not working

I developed small application in jsf , i get the 30 records from db for when i click the "next30" button and append the that 30 records to pageflowscope variable and displaying in screen .list per page is 50...
Acutally i got records from DB and added to list but when i click the Next ## link or choose from dropdown is not working
Please help me to resolve this problem ,
i tried many ways

"is not working" contains exactly zero information. If you want help, offer something other than "it doesn't work". Some code is already a good start.
Also, I would ask the question in a forum or mailing list that covers Trinidad. You'll have far more chance of getting actual suggestions.

JSF datatable pagination - showing page wise total.

Hi All,
i am ok with normal pagiation. but i have a requirement to show total count of a column page wise in the footer and also total count of th column at the datatable bottom.i can able to get total count but how can we show page wise total count in the footer of datatable. please help me in this
Regards,
A.

So you want something likedouble subTotalPrice = 0.0d;
for (int i = dataTable.getFirst(); i < dataTable.getFirst() + dataTable.getRows() && i < dataList.size(); i++) {
    DataItem dataItem = dataList.get(i);
    double dataItemPrice = dataItem.getPrice();
    subTotalPrice += dataItemPrice;
return subTotalPrice;?

Pagination of resultset containing few hundreds results..

Hi,
In my table i want to display data which is coming from the database. The resultset contains a number of rows. On my jsp page i want to display 10 rows per page. I can display data on the page but it is not doing pagination of total result in resultset.
I am a new jsf user. And i dont know how to do this.
Can anybody help me please...
Thanks in advance....
Regards,

no, i want all rows to be printed on the page.
But see i have approx. one million rows, so i don't want put all those rows into an arraylist.
I dont know whether JSF has this feature or not, is there a way so that i simply return a ResultSet(which contains millions of rows) and it itself do the pagination for them.
Or is there any other way that you think will be appropriate for me.
Regards

JSF inputtxt in database cost too much time

Hi Guys,
My project is using JSF as web development. Now on a page, I need put 200 records in one page, all these records with about 15 fields. As we need to let the fields editable, so I use inputbox in the datatable. The problem is, when I submit the form, it takes me long long time. Is there anybody has the solutions? Thanks in advance!
Jason

Hi Gimbal2,
Thanks for your reply. The details are here.
I am using JSF1.1 with MyFaces implements. The datatable contains 200 rows * 15 input box, when I sumbit the form to backend, it takes more than 95% time cost on apply-request stage. During this sumbitting, no database connection, no other remote connection.
The time spent in local enviroment is about 1-2 minutes, but the time in my client enviroment will cost more and timeout. So the performance is not aceptable.
I've looked into this forum, someone mentioned the same issue (input box in datatable cause performance issue). It seems nobody come out the solutions yet. I agree on that using pagination can work, but client won't using that feature, because only maximum 200 records.
Edited by: Jason.Ye on Apr 3, 2009 12:54 AM

Why should i use JSF rather than Struts?

What makes JSF useful than Struts? In my project I am using like
<h:commandButton action="#{loginbean.execute}" actionListener="#{loginbean.handleEvent}" ..../>
In the above commandButton as you can see that i am not exposing the beanName. However i am exposing the beanMethod which are execute and handleEvent. Is there any other way to hide the name of the method because
From what i understand is Presentation Layer should be shielded from whatever is going on in the backend. So, this doesn't do good right?
Please suggest.
How does Component and Renderers help. I am using encodeEnd() method in Renderer to render what the input or the output should look like. Do we need to switch to JSF from Struts just because of this... I don't see how and why components and renderers could help me..

srikanthradix wrote:
What makes JSF useful than Struts? In my project I am using like
<h:commandButton action="#{loginbean.execute}" actionListener="#{loginbean.handleEvent}" ..../>
In the above commandButton as you can see that i am not exposing the beanName. However i am exposing the beanMethod which are execute and handleEvent. Is there any other way to hide the name of the method because
From what i understand is Presentation Layer should be shielded from whatever is going on in the backend.You can use "binding" and define everything in Java code if you want. You can rename your method to reflect what you want to see in the front end if you want. You can use JSFTemplating to use handlers which can be mapped to any name you want to see and do not have to match the method name of the java class (although I suspect this is the opposite direction from what you are suggesting you want).
EL in jsf (i.e. #{bean.login}) is meant to do the mapping in JSF pages rather than externalize this in a separate file and force the page developer to edit multiple files for simple tasks. Although in some cases navigation is broken out into a separate file (i.e. faces-config.xml file using the default NavigationHandler navigation rules), this can also be done inline. It's a different way of doing development and has its pros and cons (easier, but mixes up presentation and controller somewhat). That said... JSF is very flexible, it CAN externalize any of this information, it just requires you to provide a different ViewHandler information that allows you to enter the data the way you like to see it (imo, you won't realize any benefit from the separation, though -- I used to think it was worth doing but have changed my opinion).
So, this doesn't do good right?Perhaps in theory... but in practice, I don't think it really has a drawback. One caveat, I like how I implemented event handling in JSFTemplating as opposed to action/actionListener attributes which are not configurable and are more opaque than I prefer. My parameterized handlers allow for better code-reuse, but arguably mix up presentation and controller code even more (depending on how they're used).
Please suggest.
How does Component and Renderers help. I am using encodeEnd() method in Renderer to render what the input or the output should look like. Do we need to switch to JSF from Struts just because of this... I don't see how and why components and renderers could help me..The idea of a component helps tremendously as someone else can create a component for you and you can benefit from it. There are many great component sets available on the market (for free and for purchase). For example: Woodstock (which has drag/drop support inside NetBeans), RichFaces, IceFaces, Tomahawk, Scales, etc.
Renderers allow you to cleanly separate the presentation of a component with the data of the component. You can then switch out the presentation to support multiple markups (i.e. client devices). In addition, JSF's rich lifecycle provide logical places for certain types of operations to occur, the renderers participate in this so that they are performing their tasks at a well defined time. And finally, many different components may re-use the same renderer, or a single component may use one of several renderers. The separation of data and display (model and view) makes this very clean.
JSF is not Struts. If you expect it to be struts, you may be disappointed (or if you expect struts to be JSF, you'll be disappointed). JSF has a lot to offer (as does struts), you have to decide what is important to you and your organization. Some things to consider wrt to JSF: very strong vendor support; many large set of components to choose from; multiple standards-based tools to choose from; very flexible (most parts of the framework are pluggable); active growing development community; component-based model which encapsulates complexity for things like Ajax, pagination, and other things (often complicated in a non-component architecture); good integration with other frameworks.
I don't know if this makes your decision any easier, but hopefully it helps clarify how you should be viewing JSF & Struts.
Good luck!
Ken Paulsen
https://jsftemplating.dev.java.net

Pagination in JSF

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