Jsp:usebean How to get value of an object from a bean

I am new to JSP and am struggling from past few days to solve a problem. Consider the below scenario
Class Book{
private String author;
public void setAuthor(String author)
public String getAuthor(){
return author; }
Class Rack{
private Book []books;
public []Book getbooks()
return books;
public void setbooks([]Book val){....}
Suppose Books gets populated only using Rack and I have Rack populate in my session, using jsp:usebean or any other tag how can I get value of author? Does using tag handle null value check of books, if books are not set by any chance?
Regards,
Dhyan

I got a way out to access the attribute, i feel it is
<jsp:usebean id="myRack" class="settings.Rack"/>
<c:foreach var="book" item="myRack.books">
</c:foreach>
I am not able to check if this is correct or not because myRack.books is not having any value set by me in the request scope. How do i get instance of Rack class set by another page in the current request? I can get the value if i use scriptlet but i dont want to use scriptlet.
I am continiously trying, if I get an answer, I shall post, else pls somebody guide.

Similar Messages

XSL-How to get value of a variable from inside loop-- to the outside loop?

Pls help
hi im currently working on this xsl file..
This works on generating a txt file,my problem right now is
' how can i get the value of a variable generated from the inside forloop,
i have to get the total,sum value of this variables after performing the loop
***this is the for loop
<xsl:for-each select="OutboundPayment">
<xsl:variable name='id' select='generate-id(OutboundPayment)'/>
<xsl:sort select="PaymentNumber/CheckNumber" data-type="text" />
<xsl:variable name='PValue' select='format-number(100*PaymentAmount/Value,"0000000000000")'/>
<xsl:value-of select='$id'/>
<xsl:text>D</xsl:text>
<xsl:value-of select='$DDate'/>
<xsl:value-of select='$Batch'/>
<xsl:text>3</xsl:text>
<xsl:value-of select='format-number(PaymentNumber/PaymentReferenceNumber,"0000000000")'/>
<xsl:value-of select='format-number(PayeeBankAccount/BankAccountNumber,"0000000000")'/>
<xsl:value-of select='substring(Payee/Name,1,20)'/>
<xsl:value-of select='$PValue'/>
<xsl:variable name='Addend' select='concat($DDate,substring($DAcct,5,5),$Batch)'/>
<xsl:variable name="LHash">
<xsl:call-template name="GetHash">
<xsl:with-param name="A1" select="$PValue" />
<xsl:with-param name="A2" select="$Addend" />
</xsl:call-template>
</xsl:variable>
<xsl:value-of select="concat('[',$LHash,']')" />

<xsl:call-template name='NewLine'/>
</xsl:for-each>


<xsl:template name="GetHash">
<xsl:param name='A1'/>
<xsl:param name='A2'/>
<xsl:variable name='TwoSum' select='format-number($A1+$A2,"000000000000000")'/>
<xsl:variable name='Weight' select='317191314191112'/>
<xsl:call-template name="WDigit">
<xsl:with-param name="Cnt" select="15"/>
<xsl:with-param name="Sum" select="$TwoSum"/>
<xsl:with-param name="Wgt" select="$Weight"/>
<xsl:with-param name="Tot" select="0"/>
</xsl:call-template>
</xsl:template>
<xsl:template name='WDigit'>
<xsl:param name='Cnt'/>
<xsl:param name='Sum'/>
<xsl:param name='Wgt'/>
<xsl:param name='Tot'/>
<xsl:choose>
<xsl:when test="$Cnt > 0">
<xsl:variable name='Multip' select='substring($Wgt,$Cnt,1)'/>
<xsl:variable name='Factor' select='substring($Sum,$Cnt,1)'/>
<xsl:variable name='Prduct' select='$Multip$Factor'/>



<xsl:call-template name="WDigit">
<xsl:with-param name="Cnt" select="$Cnt - 1"/>
<xsl:with-param name="Sum" select="$Sum"/>
<xsl:with-param name="Wgt" select="$Wgt"/>
<xsl:with-param name="Tot" select="$Tot+$Prduct"/>
</xsl:call-template>
</xsl:when>
<xsl:otherwise>
<xsl:variable name="Rem" select="$Tot mod 11"/>
<xsl:variable name="Chk" select="11 - $Rem"/>
<xsl:value-of select="format-number(concat($Tot,$Chk),'00000')"/>
</xsl:otherwise>
</xsl:choose>
<xsl:template name='GetTotal'>
</xsl:template>
Thanks in advance for those who are willing to help.
-Leighya

It would have helped if you had posted your code as CODE but as it is, I could hardly read it. My guess about what you are asking is, if you want a template to return a value, just write that value to the result stream inside the template.
If that wasn't what you were asking, then please post your code in a readable format.

How to get value in dashboard prompt from database

Hi All,
I am using dashboard prompt (Year Prompt) to filter reports on year basis.
fact table stores the hit date on a particular site linked with date dimension table .
I have Datas in fact table say from year 2005 to 2009 .In dashboard Prompt it is showing me all the years 1990 to 2021(that are in date dimension).
I hard coded the value of years in prompt now it only showing me years 2005 to 2009.
My question is that is their any way that prompt automatically take values from database, those years which are stored in fact table ?
Thanks in advance.

Hi...
Try writing query for dashboard prompt to get desired values..
*select distinct year(FactTable.HitDate) from SubjectAreaName*
To work this.. you should have HitDate column in presentation layer. (You can drag this column from fact in BMM and drop in any dimensions of presentation Layer, and name it as HitDate (Fact).. some thing like this...

How to get value of some key from Registry Edit in a Java class?

Hi,
I want to write a program which needs to access the value for HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft\Java Runtime Environment\1.6.0\MSI' paths 'INSTALLDIR' key's value.
Does anybody have pointers on this?
Thanks In Advance,
Kalyani.....

hi,
this is the code i am employing and i want to know why i am failing:
import com.ice.jni.registry.Registry;
import com.ice.jni.registry.RegistryException;
import com.ice.jni.registry.RegistryKey;
import com.ice.jni.registry.RegStringValue;
import com.ice.jni.registry.RegistryValue;
* @author ayesha
public class ReadingRegistryValueFromRegistry {
     private static String TOP_KEY_NAME="HKEY_LOCAL_MACHINE";
     private static String KEY_NAME="SOFTWARE\\JavaSoft\\Java Development Kit\\1.5.0_08 ";
     private static String ARG_KEY="JavaHome";
     * @param args
     public static void main(String[] args) {
          // TODO Auto-generated method stub
System.out.println(getGMDBPathFromRegistry()+"111111111111111111111111111111111111111111111111111111111");
     private static String getGMDBPathFromRegistry(){
          String gmDBPath=null;
          RegistryKey topKey=null;
          String topKeyName=TOP_KEY_NAME;
          //System.out.println(topKeyName+"33333333333333333333topkeyname");
          String keyName=KEY_NAME;
          //System.out.println(keyName+"5555555555555555555555555555555keyName");
          String argKey=ARG_KEY;
          //System.out.println(argKey+"66666666666666666666666666666666666666666666666666666666argKey");
          topKey=Registry.getTopLevelKey(topKeyName);
          System.out.println(topKey+"somethingsomething");
          if(topKey==null){
               return gmDBPath;
          RegistryKey subKey=Registry.openSubkey(topKey,keyName,RegistryKey.ACCESS_READ);
          try{
          System.out.println(subKey.toString()+"value i got in here");
          catch(Exception e){
               System.out.println(e.getCause().toString());
          if(subKey==null){
               return gmDBPath;
          try{
               gmDBPath=subKey.getStringValue(argKey);
          catch(RegistryException ex){
               return gmDBPath;
          return gmDBPath;
I want to read from the registry entry the value of java.
Any suggestions are eagerly awaited.
ayesha.

How to get value of a structure from a standrd program to Z program

There is a standard program which generates a file when it is run a file is created
The name of the file is stored in a structure. I am submitting this standard program in my Z program I have to get the file name from the structure

Hi,
Does this help?
you can retrieve the content of a structure from another shared memory by assigning it with a field symbol:
e.g.
FIELD-SYMBOLS: <staffel> TYPE table.
* get itab data from SAPMV13A
ASSIGN ('(SAPMV13A)STAFFEL[]') TO <staffel>.
Kind regards, Rob Dielemans

How to get value of html combo box (i.e select) in jsp?

Hello,
I was just wondering how to get value of html combo box in jsp page. My code for combo box is:
<select name="combo" size="1">
<%
List<Project> projects = mgr.getProjects();
for(Project project : projects){
%>
<option value="<%= project.getId()%>"><%= project.getName()%></option>
<%
%>
</select>
I thought combo.value might give me the value, but it throws exception.
Any help is appreciated.
Thanks.

The combo does not exists in Java, but only in HTML. You have to submit the form containing the combo and then use request.getParameter("combo") to get it's value ;-)

How to get value in showModalDialog()

Hi,
I would like to know how to get value pass into showModalDialog() to be used by the server (using request.getParameter())
TQ

please try out this kind of code
<script language="javascript">
     function trial(){
          var retVal = new Object();
          retVal = ShowModalDialog("ur JSp");
</script>
<script>
<form >
<input type="hidden" name ="mylink "value= javascript:trial();>
</form>
<%
     String str=request.getParameter("mylink");
%>
and plz let me know .. if it works

How to get value by jstl?

select IEPort,seqNo,IEDate,trafMode from TImport
this is in hibernate hql
List queryResult = dao.getList(session, form);so in the list is not a bean but an Object, so in the Object do not hava attribute name, i don't know how to get value by JSTL in the jsp, who can help me

JSTL can figure out what the specific type of the Object is on its own. Just reference the attributes of your bean using the expression language like you would normally do. If you are uncertain print out the classname of the objects in the list like this:
${obj.class.name}where obj is an object from the list. This should print out the name of your beans if hibernate did its job properly. JSTL will know what properties these objects has even if you only pass it an Object reference.

HELP! I need help to understand how to get value on radio buttons!

hello,
I realy need the help from anyone that knows how to get value from radio buttons in a JSP.
I have this :
<%
java.util.Vector vLinha = (java.util.Vector) datos.get("ConsNefect");
          java.util.Hashtable ordens;
          java.util.Enumeration eLinha = vLinha.elements();
          String t = "radio";
          String x = "escolha";
          String l = "";
int i = 0;
          //int esc = 0;
String fila = "";
          boolean bol = true;
while (eLinha.hasMoreElements())
ordens = (com.ibm.dse.base.Hashtable) eLinha.nextElement();
          if (++i%2 == 0)
fila = "formgriscla";
else
fila = "formgrisosc";
out.println("<tr>");
out.println("<td class=\"" + fila + "\">");
out.print("<p class=\"dato2\">");
          out.print("<a href=" + urls.get("action"));
     out.print("&sequencia=" + (String) ordens.get("sequencia"));
     out.print(">");
          out.print((String) ordens.get("descricao"));
     out.print("</a></p></td>");
          out.println("<td class=\"" + fila + "\">");
out.print("<p class=\"datop\">");
          out.print((String) ordens.get("datap"));
out.print("</p>");
out.println("<td class=\"" + fila + "\">");
out.print("<p class=\"datop\">");
out.print((String) ordens.get("erro"));
          out.print("</p>");
          out.println("<td class=\"" + fila + "\">");
          out.print("<p class=\"datop\">");
          l = (String) ordens.get("sequencia");
          out.println("<input type=\"" + t + "\" name=\"" + x + "\" value=\"" + l + "\">");
          out.print("</p></td>");
          out.println("</tr>");
          //esc++;
%>


</td>
</tr>
I don�t know how to take the value... PLEASE HELP ME OUT!
THANKS TO ALL!,
Best wishes,
Alex (portugal)

You must wrap your contents into a FORM element and, then, using getParameter("escolha"), retrieve your value.

How to get value from list item

Hi all,
How to get value from list item?
I have a problem with the List Item object
in the Oracle forms.
How can I retrieve the selected item from
a list ?
I didn't find any function like 'list.GET_
SELECTED_ITEM()'...
thanks
Bala

Hello,
You get the value as for any other Forms item:
:value := :block.list_tem ;Francois

How to get values/data stored in the database into a list-item.

how to get values/data stored in the database into a list-item.
i tried to make a list item without any values assigned to it...but i got the below error.
FRM-30191: No list items defined for required poplist.
or
FRM-32082: Invalid value for given item type.
List EMPNO
Item: EMPNO
Block: EMP
Form: MODULE5
FRM-30085: Unable to adjust form for output.
then according to some docs, i tried the the following for the trigger
when-new-form-instance
declare
     rg_name varchar2(40) := 'emp_rec';
     status number;
     groupid recordgroup;
     it_id item;
begin
     it_id := Find_Item('empno');
     groupid := create_group_from_query(rg_name, 'select empno from emp');
     status := populate_group(groupid);
     populate_list(it_id, groupid);
end;
but yet didnt work... :(
so how the heck do i get values fetched from the database table into the list item?

for list items you need to values in the record group, one is the shown value and one is the returned value.
Check out the online help for the populate_list built-in.
You'll need something like select ename,ename from emp as the record group query.

How to get value in a web page automatically and sava output in database

how to get value this table output is
row 1, cell 1
row 1, cell 2
row 2, cell 1
row 2, cell 2
<table border="1">
<tr>
<td>row 1, cell 1</td>
<td>row 1, cell 2</td>
</tr>
<tr>
<td>row 2, cell 1</td>
<td>row 2, cell 2</td>
</tr>
</table>

Note: This thread was originally posted in the [Java Technologies for Web Services|http://forums.sun.com/forum.jspa?forumID=331] forum, but moved to this forum for closer topic alignment.

How to get value in function insert table test ?

Hi
I use function insert table test in order to get value in table for use in code page but i don't know how to get value in table.If somebody have any idea.Please give me some advice.
Thank you,
Waruja

You will need to grab the contents with VBA
Table test is user interface only.
This thread may help
http://qazone.empirix.com/thread.jspa?threadID=748&tstart=0

How to get value of URL parameter

Hi,
If an ABAP Web Dynpro URL looks like this: http://<server>:<port>/sap/bc/webdynpro/sap/zny_test1?sap-client=100&sap-language=EN, how to get value of the URL parameter sap-client at runtime in the application?
Thanks,
Nancy

The framework currently strips all the framework specific params.
Perhaps the will be made available in a future release. Thomas, any comments ?
However, I dont understand the requriement to know the sap-client URL value.
If your code is running, a user has successfully connected to system a therefore he has a session open and this session is associated with exactly 1 client at any point in time.
See SYSTEM VARAIBLE SY-MANDT.
this represents the client in which the users session is running and negates the need to see
sap-client URL value.
regards
Phil.

How to get Value of tree node without Reload Page

hi,
i worked with apex 4.2 and i created Tree and tabular form to retrieve the date according the value of tree select node the code of tree something like this
select case when connect_by_isleaf = 1 then 0
when level = 1 then 1
else -1
end as status,
level,
"ENAME" as title,
null as icon,
"EMPNO" as value,
null as tooltip,
'f?p=36648:34:5234984107903::::P40_SELECTED_NODE:'||empno as link
from "DEPT"."EMP"
start with "MGR" is null
connect by prior "EMPNO" = "MGR"
order siblings by "ENAME
and i put Selected Node Page Item: P40_SELECTED_NODE . the tree worked good and retrieve the data into tabular form according to tree node value
my Question :
1- i want to retrieve the data without submit the page where each time i select value from tree make page reload to update the tabular form with new value ,there is any way to pass the value of tree node to P40_SELECTED_NODE item and refresh tabular form without page reload .
2- i want when selected from tree run page process according to value of tree node i tray to create Dynamic action with *(jquery selector : div.tree li>a)* but the Value of node incorrect.
Regards
Ahmed;

look at this link
Re: How to get Value of tree node without Reload Page ..!

Jsp:usebean How to get value of an object from a bean

Similar Messages

Maybe you are looking for