A simple JSF Table CRUD - How To

Hello,
I have to build a few CRUDs for very simple tables (3 columns at most) implemented as JSF tables.
I wish the "Create" function to work as:
1. By clicking the "Create" button (or link?), append an empty row at the end of the table (or perhaps instert one at the start of te JSF table). I think it is not so good to insert new data using a separate form for it (and my users don´t like it either) for so simple tables.
2. Enter the data for the new row.
3. Clicking on "Save" button, commit all inserts and updates made to the database and refresh the table.
My problem is that I could'nt find a way to do point 1 (Insert row). I've searched the forum, studied the tutorials but found nothing of the sort.
So, I would be very grateful if some could explain me how to solve my problem.
Thanks a lot in advance,
AG

Mr Brenden
Yes, I'm new to JDeveloper. That does not mean I'm new to developing applications. I've been doing it for about 25 years (I'm quite old as you can see). I've been using some Oracle products (mostly Forms, Reports, Discovery and i'm allways been a fan of Designer). I'm not new to Forums (Eclipse RCP, Eclipse Birt, Java Sun Creator, etc) and I'm not new to JSF. I allways appreciate very much others help and always try to help them. I've posted work arounds and how tos for more than one subject. I allways take my time to thank people for the help. I've given may e-mail to newbies to give them a better help of subjects I know and they need. The thing I can't accept is that someone, in the name of Oracle, give answers that you can interpretate as "Don't bother, investigate and study!". I've received answers like "In this blog .......... you might find the answer to your problem in the entry ....). That is specific. Your answer sent me to a page that had 20 or more entries and not one of them touched the subject. The worst thing is that I already knew the site and read a lot of things in it.
I didn't lambaste against the comunity. I did it against you! It clearly stated "This is specifically directed to Mr Grant Ronald:" Looks like you dont have the habit to analize the posts. And I did it against you because you posted your answer in Oracles name!
I have to recognize I was quite rude and apologize for that in front of all buddies in the world of application development.
As I know this is not the right place for this kind of arguing, here is my email and name, for you or someone else who wants to continue the argument: [email protected] (Antonio Gurisatti)
As a last thing, I'll state my position:
People, in the name of the products company are supposed to know more than any one. I expect that if I see the words "Oracle Products management" at the bottom of their entry, they really know the product and that their help is the most effective and accurate (Mr Brendens reply was effective and accurate).
AG

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Pedagogical code? :)
Explore the source code of any open source UIData components.

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The scene:
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If you don't care about the buttons themselves providing a visual cue that data has changed, then the easiest thing is to just remove the disabled property - then it will default to false and the button will always be enabled.
i.e., change this:
<af:commandButton actionListener="#{bindings.Commit.execute}" text="Commit"
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I have a developed a simple JSF application using Jdeveloper 11g.
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com.sun.xml.ws.streaming.XMLStreamReaderException: unexpected XML tag. expected: {http://peoplesoft.com/KCM_WEB_CASE_CI}Get__CompIntfc__KCM_WEB_CASE_CIResponse but found: {http://schemas.xmlsoap.org/ws/2002/xx/secext}Get__CompIntfc__KCM_WEB_CASE_CIResponse
avax.faces.el.EvaluationException: com.sun.xml.ws.streaming.XMLStreamReaderException: unexpected XML tag. expected: {http://peoplesoft.com/KCM_WEB_CASE_CI}Get__CompIntfc__KCM_WEB_CASE_CIResponse but found: {http://schemas.xmlsoap.org/ws/2002/xx/secext}Get__CompIntfc__KCM_WEB_CASE_CIResponse
at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:102)
at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:102)
at javax.faces.component.UICommand.broadcast(UICommand.java:387)
at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:475)
at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:756)
at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:82)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:100)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:265)
at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227
thanks in advance
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HI
First of all, how do you concluded that you're dealing with packaging problem?? It seems problem is in response from web service. The toolkit you have is not able to parse the soap response. Tomcat solves problem probably because of the different jars he has for web service client.
In either way, i have personally experienced problems with JD packaging (11g). The WAR created by JD was working well in embedded WLS shipped with JD, but when deployed to production WLS 10.3.1, i got a "IO exception; premature end of file". The only solution was to create a WAR by ant.
Here is ANT sample script for building java classes, packaging into war, deploying to WLS (for this last one, you need to reference external jar):
<target name="build">

<javac debug="true" debuglevel="${debuglevel}" source="${source_version}" target="${target_version}" destdir="${output.dir}">
<src path="${src.location}"/>
</javac>
</target>
     <target name="war" depends="build">
<delete file="${target_war_file}"/>
<war destfile="${target_war_file}" webxml="src/WEB-INF/web.xml" manifest="/src/META-INF/MANIFEST.MF" update="true">
<classes dir="${output.dir}"/>
<lib dir="${build_libs.location}">
<include name="**/*.jar"/>
</lib>

<zipfileset dir="${path.to.conf.folder}" prefix="WEB-INF">
<include name="adfc-config.xml"/>
<include name="trinidad-config.xml"/>
<include name="web.xml"/>
<include name="weblogic.xml"/>
</zipfileset>
</war>
</target>
     <taskdef name="wldeploy" classname="weblogic.ant.taskdefs.management.WLDeploy">
<classpath>
<pathelement location="c:/oracle/wlserver_10.3/server/lib/weblogic.jar"/>
</classpath>
</taskdef>
<target name="deploy">
<wldeploy action="deploy" verbose="true" upload="true" remote="true" debug="true" name="${wls.app.name}" user="${wls.user}" password="${wls.password}" adminurl="${wls.admin.url}"
targets="${wls.targets}" securitymodel="CustomRoles" source="${target_war_file}" nostage="false"/>
</target>
<target name="undeploy">
<wldeploy action="undeploy" verbose="true" name="${wls.app.name}" user="${wls.user}" password="${wls.password}" adminurl="${wls.admin.url}" targets="${wls.targets}" failonerror="false"/>
</target>

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import java.util.*;
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msg.addHeader("MyHeaderName", "myHeaderValue");
// Setting the Subject and Content Type
msg.setSubject(subject);
msg.setContent(message, "text/plain");
Transport.send(msg);
Thanks in advance for your time.
Edited by: Karthik on Nov 10, 2008 10:20 AM

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Thx mayagiri for your reply!
But including the src-code for the dataprovider package into a test project, and debugging in the creator-ide has done the thing!
Here our solution:
Class ToCompare is the object type which address field displayed in a page, simply containing a table with 2 adress colums, that can be sorted either according to our ip/hostname-comparison or according to String.compare().
* ToCompare.java
* Created on 10. Februar 2006, 10:41
* This class is a basic model object,
* with a field - String address - according
* to which it shall be sortable.
package comparator;
* @author mock
public class ToCompare {
     * holds the IP or Host address
    private String address=null;
     * Instance of a Comparator class that
     * provides our sorting algorithm
    private RcHostComparator hostComparator=null;
    /** Creates a new instance of ToCompare */
    public ToCompare() {
        this("defaultHost");
     * when creating a new ToCompare instance,
     * the hostComparator is created for it
     * @ param aAddress - IP or Hostname
    public ToCompare(String aAddress) {
        address=aAddress;
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    public String getAddress() {
        return address;
    public RcHostComparator getHostComparator() {
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}Here the code of the Class RcHostComparator, it is created with the address field of the ToCompare object that it holds. It first checks if the address field is an IP or not, and then chooses the comparison algorithm according to its own field state and the field state of the object to compare to:
* RcHostComparator.java
* Created on 10. Februar 2006, 10:43
* This class is used to provide a method for
* comparing objects that have an address field,
* containing either IP adresses or hostnames.
package comparator;
import java.text.CollationKey;
import java.text.Collator;
import java.util.Comparator;
import java.util.Locale;
* @author mock
public class RcHostComparator implements Comparator
     * holds the IP or Host address
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     * Is the address an IP
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     * to provide a performant way of comparing it with another
     * CollationKey, in order to sort Strings localized
     * @ see java.text.Collator
     * @ see java.text.CollationKey
    private CollationKey hostnameCollationKey=null;
     * if (isIPAddress) this array holds
     * the 4 byte of the Ip address to compare
    private int[] intValues=null;
     * minimum for IP bytes/ints
    private static final int minIntValue=0;
     * maximum for IP bytes/ints
    private static final int maxIntValue=255;
     * Creates a new instance of IpComparator
     * @ param aAddress - holds the IP or Host address
    public RcHostComparator(String aAddress) {
        address=aAddress;
         * check if address is an IP
        isIPAddress=checkIP();
         * if Hostname -> instantiate localized CollationKeys
        if(!isIPAddress){
             Collator _localeCollator=Collator.getInstance(Locale.getDefault());
             hostnameCollationKey=_localeCollator.getCollationKey(address);
        }else{}
     * Here the comparison of the address fields is done.
     * There a 4 cases:
     * -1 both Hostnames
     * -2 aObject1 IP, aObject2 Hostname
     * -3 aObject1 Hostname, aObject2 IP
     * -4 both IPs
     * @ param aObject1, aObject2 - Comparator objects
    public int compare(Object aObject1, Object aObject2)
      int _result= 0;
      if(aObject1 instanceof RcHostComparator && aObject2 instanceof RcHostComparator )
           RcHostComparator _ipComparator1=(RcHostComparator)aObject1;
           RcHostComparator _ipComparator2=(RcHostComparator)aObject2;
           * Compare algorithms, according to address types
           if(!_ipComparator1.isIPAddress()&&!_ipComparator2.isIPAddress()){
                   * If both addresses are Strings use collationKey.compareTo(Object o)
                _result=_ipComparator1.getHostnameCollationKey().compareTo(_ipComparator2.getHostnameCollationKey());
           }else{
                   * IPs are smaller than Strings -> aObject1 < aObject2
                if(_ipComparator1.isIPAddress()&&!_ipComparator2.isIPAddress()){
                     _result=-1;
                }else{
                            * IPs are smaller than Strings -> aObject1 > aObject2
                     if(!_ipComparator1.isIPAddress()){
                          _result=1;
                     }else{
                         int _intIndex=0;
                         int[] _int1=_ipComparator1.getIntValues();
                         int[] _int2=_ipComparator2.getIntValues();
                                  * compare IP adresses per bytes
                         while(_result==0 && _intIndex<4){
                              if(_int1[_intIndex]>_int2[_intIndex]){
                                   _result=1;
                              }else if(_int1[_intIndex]<_int2[_intIndex]){
                                   _result=-1;
                              }else{}
                                         _intIndex++;
      }else{}
      return _result;
     * checks if the address field holds an IP or a hostname
     * if (_isIP) fill intValues[] with IP bytes
     * if (!isIP) create hostnameCollationKey
    private boolean checkIP(){
       boolean _isIP=false;
       String[] _getInts=null;
        * basic check for IP address pattern
        * 4 digits also allowed, cause leading
        * 0 stands for octet number ->
        * 0172=122                  ->
        * 0172.0172.0172.0172 = 122.122.122.122
       boolean _firstcheck=address.matches("[0-9]{1,4}\\.[0-9]{1,4}\\.[0-9]{1,4}\\.[0-9]{1,4}");
       if(_firstcheck){
            _getInts=address.split("\\.");
            intValues=new int[4];
            for (int _count=0; _count<4; _count++){
               try{
                   int _toIntValue;
                   if(_getInts[_count].startsWith("0")){
                            // if leading 0 parse as octet -> radix=8
                           _toIntValue=Integer.parseInt(_getInts[_count], 8);
                   }else{
                            // parse as is -> radix=10 -> (optional)
                           _toIntValue=Integer.parseInt(_getInts[_count]);
                   if(_toIntValue<minIntValue||_toIntValue>maxIntValue){
                          // out of unsigned byte range -> no IP
                          return _isIP;
                   }else{
                          // inside byte range -> could be part of an IP
                          intValues[_count]=_toIntValue;
               }catch(NumberFormatException e){
                       // not parseable -> no IP
                       return _isIP;
           // all 4 bytes/ints are parseable and in unsigned byte range -> this is an IP
            _isIP=true;
       }else{}
       return _isIP;
    public boolean isIPAddress() {
            return isIPAddress;
    public int[] getIntValues() {
            return intValues;
    public CollationKey getHostnameCollationKey() {
            return hostnameCollationKey;
    public String getAddress()
        return address;
}The page bean holds an array of ToCompare objects. It is the model for a new table component, hold by an ObjectArrayDataProvider. Here a code excerpt:
public class Page1 extends AbstractPageBean
    private ToCompare[] toCompare= new ToCompare[]{
        new ToCompare("1.1.1.1"),
        new ToCompare("2.1.1.1"),
        new ToCompare("9.1.1.1"),
        new ToCompare("11.1.1.1"),
        new ToCompare("0172.0172.0172.0172"),
        new ToCompare("123.1.1.1"),
        new ToCompare("a"),
        new ToCompare("o"),
        new ToCompare("u"),
        new ToCompare("z"),
        new ToCompare("�"),
        new ToCompare("�"),
        new ToCompare("�")
     * This method is automatically generated, so any user-specified code inserted
     * here is subject to being replaced
    private void _init() throws Exception
        objectArrayDataProvider1.setArray(toCompare);
    private TableRowGroup tableRowGroup1 = new TableRowGroup();
    private ObjectArrayDataProvider objectArrayDataProvider1 = new ObjectArrayDataProvider();
}The relevant .jsp section for the two column table looks like:
<ui:tableRowGroup binding="#{Page1.tableRowGroup1}" id="tableRowGroup1" rows="10" sourceData="#{Page1.objectArrayDataProvider1}" sourceVar="currentRow">
<ui:tableColumn binding="#{Page1.tableColumn1}" headerText="SortIP" id="tableColumn1" sort="#{currentRow.value['hostComparator']}">
    <ui:staticText binding="#{Page1.staticText1}" id="staticText1" text="#{currentRow.value['address']}"/>
</ui:tableColumn>
<ui:tableColumn binding="#{Page1.tableColumn2}" headerText="SortString" id="tableColumn2" sort="address">
    <ui:staticText binding="#{Page1.staticText2}" id="staticText2" text="#{currentRow.value['address']}"/>
</ui:tableColumn>
</ui:tableRowGroup>Sorting localized with Locale="DE_de" according to ip/hostcompare sorts:
SortIP
1.1.1.1
2.1.1.1
9.1.1.1
11.1.1.1
0172.0172.0172.0172
123.1.1.1
a
�
o
�
u
�
zWhereas normal sort over String address whitout localization sorts:
SortString
0172.0172.0172.0172
1.1.1.1
11.1.1.1
123.1.1.1
2.1.1.1
9.1.1.1
a
o
u
z
�
�
�Not that short, but I hope it will help - if anyone has the need for another than the default sorting algorithms
Best regards,
Hate E. Lee

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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!

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Hi
In Table Control How to get only a single row .I am able to decrease it its height to 4 but then 2 rows is getting dsplayed .I want only one row to be display and 2nd row should be deactivated or not visible.
regards
Avik
Edited by: Julius Bussche on Jan 30, 2009 1:10 PM
Removed friendly greeting from the subject title

Hi Avik
use this code it will help you.
MODULE passdata OUTPUT.
READ TABLE it_revision INTO wa_rev INDEX tab_clc-current_line.
IF sy-subrc = 0.
    LOOP AT SCREEN.
      IF screen-group1 = '111'.      " 111 IS THE GROUP NAME
        screen-input = 1.          " input mode
        screen-active = 1.         " input mode.
        MODIFY SCREEN.
      ENDIF.
    ENDLOOP.
ELSE.
    LOOP AT SCREEN.
      IF screen-group1 = '111'.       "GROUP NAME
        screen-input = 0.           " display mode
        screen-active = 1.          " DISPLAY MODE.
        MODIFY SCREEN.
      ENDIF.
    ENDLOOP.
ENDIF.
ENDMODULE.                 " PASSDATA OUTPUT
Make sure in group tou are passing the field name that you want in input mode on the base of other field
Hope it will help you.
Thanks
Arun Kayal.

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