Tag.setParent() method call

For simple tags implementing the SimpleTag interface, the setParent() method is only called when a tag has an enclosing parent.
Is this also the case for classic tags? In other words, is the Tag.setParent() method only called when a tag has an enclosing parent or is the method always called?
Cheers!!

Similar Messages

Method call in html anchor tag

I have read about how to place a hyperlink in JTable cell in other threads. i have a method called Details() which has a mouse pressed event which responds on left click on the first column cells of my JTable. then i get the column and row positions and open up a JDialog.
so Now i have to show the first column cells as hyperlinks(underlined and handcursor on visit).
i have done something like this,
setText( "<html><a href=\"\">" + (String)(value==null?"":value ) +"</a></html>"); this makes the cell values blue colored as well as underlined as soon as the table is loaded.
how can i make it behave like a hyperlink ? that is colored, underlined and handcursor only when mouse is placed on it.
Can i have the call to Details() method inside the anchor tag which i have shown above?
Thanks,

Well what do you know, I was doing everything correctly.
Firefox does not allow local file links from a web page.
http://kb.mozillazine.org/Firefox_:_Issues_:_Links_to_Local_Pages_Don%27t_Work

Passing a method call to a facelet tag

Hello,
I am trying to create a JSF confirmation box that replaces the Javascript confirm() function. I am using Seam and Rich Faces 3.2.1. The confirm box is a facelet tag that pops up a modal box with 'cancel' and a 'continue' buttons. Everything is working correctly except for one crucial piece; passing the method call for continue button.
Here is the set up for the facelets tag in the main xhtml page:
<at:confirm
    id="confirm"
    title="Confirm"
    message="Do you want to continue"
    buttonText="Continue"
    backingBean="#{confirmAction}"
    method="testMethodTwo"
/>Here is the code for the button inside the facelets tag:
<a4j:commandLink
    styleClass="rdSplGr1"
    href="#"
    action="#{backingBean[method]}">
    <s:span>#{buttonText}</s:span>
</a4j:commandLink>The method simply does nothing when the use clicks the button. I am assuming this is due to the lack of "()" however there does not seem to be a way to get those in there. I have tried the following:
1) placing the parens like this - method="testMethodTwo()"
2) placing the parens like this - action="#{backingBean[method]()}"
The first does nothing, the second causes an EL exception.
I know that it has nothing to do with the modal as I have also placed a button like this into the modal:
<a4j:commandLink
    styleClass="rdSplGr1"
    href="#"
    action="#{confirmAction.testMethodOne()}">
     <s:span>MethodOne</s:span>
</a4j:commandLink>That button as you can see has what I am trying to create dynamically and it works like a charm.
So how do I pass a method call correctly? Or if that is impossible how do I solve the problem of having a the continue button having a different method assigned to it?
Thanks for any insight into this.
Edited by: Rhythmicdevil on Aug 4, 2008 7:57 AM

I agree, reflection should be a last resort. An
interface would not be useful if you don't know what
method you want to invoke at compile time. Interfaces
are useful when you know the method you want to
invoke, but not the class.That's not true. This is a really lame-ass example but it shows the point.
public interface RuntimeMethod
   public void method();
class AClass {
   public static void main(Sting[] args)
      new AClass.handleAtRuntime(
         Factory.getRuntimeMethod(Integer.parse(args[0])));
   public void handleAtRuntime(RuntimeMethod runtime)
      runtime.method();
class Factory
   public static getRuntimeMethod(int method)
      switch(method)
         case 0: return new RuntimeMethod
            public void method()
               methodA();
         case 2: return new RuntimeMethod
            public void method()
               methodB();
         default:
            throw new IllegalArgumentException("bad input");
}

Custom tag - setProperties() not called

Hi all,
I've created my first custom tag with it's own component class, Tag Class, Renderer and TLD. However, when the JSP first loads, the encode() method fails in trying to get the attribute values from the attribute Map - the Map is empty. Upon further debugging I can see that the Tag class is called and the setter methods are called for each attribute but the setProperties() method is never called before release(), so the attributes are never stored in the UIComponent's attribute Map.
Anybody know what I'm doing wrong?
Some code:
Tag Class...
public class ListShuttleTag extends UIComponentTag
public void setProperites(UIComponent component)
super.setProperties(component);
ComponentTagHelper.setString(component, "sourceValue", sourceValue);
ComponentTagHelper.setString(component, "targetValue", targetValue);
ComponentTagHelper.setInteger(component, "size", size);
ComponentTagHelper.setInteger(component, "targetListWidth", targetListWidth);
ComponentTagHelper.setInteger(component, "sourceListWidth", sourceListWidth);
ComponentTagHelper.setString(component, "sourceCaption", sourceCaption);
ComponentTagHelper.setString(component, "targetCaption", targetCaption);
...TLD...
<taglib>
    <tlib-version>1.1</tlib-version>
    <jsp-version>2.1</jsp-version>
    <tag>
      <name>listShuttle</name>
      <tag-class>com.katun.jsf.tag.ListShuttleTag</tag-class>
      <description>A listShuttle allows the moving of items from one listBox to another</description>
      
      <attribute>
        <name>binding</name>
        <description>
             A binding that points to a bean property
        </description>
      </attribute>
      <attribute>
        <name>id</name>
        <description>The client id of this component</description>
      </attribute>
      <attribute>
        <name>rendered</name>
        <description>Is this component rendered?</description>
      </attribute>
      <attribute>
        <name>disabled</name>
        <description>Is this component disabled?</description>
      </attribute>
      <attribute>
        <name>required</name>
        <description>Is this component required?</description>
      </attribute>
      
      <attribute>
        <name>sourceValue</name>
        <required>true</required>
        <description>A binding for the items in the source list</description>
      </attribute>
      <attribute>
        <name>targetValue</name>
        <description>A binding for the items in the target list</description>
      </attribute>
      <attribute>
        <name>size</name>
        <description>Defines the number of items visible in each list</description>
      </attribute>
      <attribute>
        <name>sourceListWidth</name>
        <description>Width of the source list</description>
      </attribute>
      <attribute>
        <name>targetListWidth</name>
        <description>Width of the target list</description>
      </attribute>
      <attribute>
        <name>sourceCaption</name>
        <description>Label displayed above the source list</description>
      </attribute>
      <attribute>
        <name>targetCaption</name>
        <description>Label displayed above the target list</description>
      </attribute>
    </tag>
...

Gotcha........
First, this is what the jsp spec has to say in sec 1.14.1
When using scriptlet expressions, the expression must
appear by itself (multiple expressions, and mixing of expressions and string
constants are not permitted). Multiple operations must be performed within the
expression.Simple, isnt it ? All you have to is evaluate the expression as a whole.
<form:toolbaritem id="icon_cancelar" action="<%="javascript:listingAction('" + request.getContextPath() + "/logout.do;')"%>" icon<%= request.getContextPath() + " /images/toolbar/Cancelar_32.gif " %>"/>cheers,
ram.

A method call question.

I am trying to check if leg1 is a positive integer, but I method call checkleg, and perform my if statement, but it will not return a 'valid = true' to my public static main. It is always false. please help!
* TriangleTest.java
* Created on October 3, 2007, 4:10 PM
* To change this template, choose Tools | Template Manager
* and open the template in the editor.
package triangletest;
* @author Nate
import java.util.Scanner;
public class TriangleTest {
    /** Creates a new instance of TriangleTest */
    public TriangleTest() {
     * @param args the command line arguments
    public static void main(String[] args) {
        // TODO code application logic here
     System.out.println ("**Triangle Validation Tool**");
     int leg1 = 0;
     int leg2 = 0;
     int leg3 = 0;
     int sumOfLegs;
     int count = 0;
     Boolean validIs = false;
     Boolean valid = false;
     Scanner input = new Scanner (System.in);
        System.out.println("Please enter the length of leg #1:");
        leg1 = input.nextInt();
        checkleg (leg1);
        System.out.println(valid);
        System.out.println("Please enter the length of leg #2:");
        leg2 = input.nextInt();
        System.out.println("Please enter the length of leg #3:");
        leg3 = input.nextInt();
        sumOfLegs = leg1+leg2+leg3;
        if (sumOfLegs != 180)
            System.out.println("Sorry, legs of lengths " + leg1+ ", "
                    + leg2+ ", and " + leg3 + " do NOT form a triangle!");
        else
            System.out.println("Congrats!");
    public static Boolean checkleg (int leg1){
        Boolean valid = false;
        if (leg1>0){
        valid = true;
        System.out.println(valid);
    return valid;
    }}Thanks

Yippee!! the code tag button is back!!
Please see comments:
     Boolean validIs = false; // probably want to use "boolean" not "Boolean"
     Boolean valid = false; // ditto
     Scanner input = new Scanner (System.in);
        System.out.println("Please enter the length of leg #1:");
        leg1 = input.nextInt();
        checkleg (leg1); // see my previous post
        sumOfLegs = leg1+leg2+leg3;
        if (sumOfLegs != 180) // I hope you will correct this logic.
            System.out.println("Sorry, legs of lengths " + leg1+ ", "
                    + leg2+ ", and " + leg3 + " do NOT form a triangle!");
        else
            System.out.println("Congrats!");
    public static Boolean checkleg (int leg1){
        // note that while your local "valid" variable has the same name as the class "valid"
        // variable, they are both different variables and changing one will NOT change the other.
        Boolean valid = false;
        if (leg1>0){
        valid = true;
        System.out.println(valid);
    return valid;
    }}

Taskflow Method call receiving null parameter.

Hi all,
I am using 11.1.1.6. I have created in my application an extra project which is pure Java objects and exposed a master class as a POJO DC. In my application, I have a taskflow where I have dragged and dropped one method from my POJO DC - 2 of the parameters of this methods are coming from an application scope bean. I have debugged the application, and made sure that the object being returned by the getter of my app scope bean is not null. So basically, when the breakpoint is in the return statement of my getter the oject is not null and it has been correctly initialized. Just after that, the next breakpoint is in the class receiving the parameter in my POJO DC class. In there, the object is NULL.
Does anyone knows wat could be the reason??

Hi Frank Nimphius-Oracle,
That is precisely the problem. The object is being passed as to the taskflow as an input parameter (getting it from my application scope bean). If I access the pageFlowScope inside my taskflow I see it and its there, correctely intialized. However, when I call a method call activity that consumes that object as parameter, all what it gets is null.
The method that consumes this object is in a separate project, and its exposed in a POJO DC. I don't know if it has to be with the complexity of the object I am passing or what but I don't understand why its not being passed correctly to the DC Method.

Closing an anonymous stream in method call

Will an anonymous stream in a method call be closed in the same manner an anonymous stream that is created in an object instantiation will be?
I know this will close the anonymous FileInputStream:
DataInputStream in =
new DataInputStream(new FileInputStream("filename.txt"));
/* ... code ... */
in.close();But will this?
MyPropertiesClass myPropertiesClass = new MyPropertiesClass();
myPropertiesClass.store(new FileOutputStream("file.txt"));MyPropertiesClass extends Properties, and uses its store().
I know the JavaDoc for Properties says:
"After the entries have been written, the output stream is flushed. The output stream remains open after this method returns."
My question is will the FileOutputStream("file.txt") be closed and garbage collected eventually after this method call because I don't have a reference to it? myPropertiesClass sticks around for a long time afterwards, will the FileOutputStream as well?
Thanks for any insight,
KJ

My question is will the FileOutputStream("file.txt") be closed and garbage collected eventually after this method call because I don't have a reference to it? > myPropertiesClass sticks around for a long time afterwards, will the FileOutputStream as well?Your only hope would be if FileOutputStream overrode finalize and closed the stream there -- but it doesn't (check the API -- finalize isn't overridden). I doubt if Properties retains a reference to the OutputStream you pass to store -- why would it need to? In any case, the bottom line is that output stream isn't being closed until your process exits.
Why not bite the bullet and rewrite that line of code so that you can explicitly close the stream?
OutputStream out = new FileOutputStream("file.txt");
try {
myPropertiesClass.store(out);
} finally {
out.close();
}It's not one line, but who cares? You could wrap it up in a short utility method:
static void storeProperties(Properties properties, String path) {...}

Using a dynamic variable in the Import command of a Method call

Hi,
I am trying to make a Method call fully dynamic.
I have found out how to make the Method name dynamic, but I am having trouble figuring out how to make the Importing statement dynamic.
in my code below:
      CALL METHOD o_main->(v_call)
        IMPORTING
          it_ekko = i_ekko.
I would like to know if it's possible to make both "it_ekko" AND "i_ekko" dynamic so I can use this same call for various tables.
Hope that makes sense...thanks for your help.
Andy

Hi Andrew,
The method call is fully dynamic; not only the parameters can be specified dynamically but also the method name.
This is a help extract:
DATA: line     TYPE c LENGTH 80,
      text_tab LIKE STANDARD TABLE OF line,
      filename TYPE string,
      filetype TYPE c LENGTH 10,
      fleng    TYPE i.
DATA: meth TYPE string,
      class TYPE string,
      ptab TYPE abap_parmbind_tab,
      ptab_line TYPE abap_parmbind,
      etab TYPE abap_excpbind_tab,
      etab_line TYPE abap_excpbind.
DATA: exc_ref TYPE REF TO cx_sy_dyn_call_error,
      exc_text TYPE string.
class    = 'CL_GUI_FRONTEND_SERVICES'.
meth     = 'GUI_DOWNLOAD'.
filename = 'c:\temp\text.txt'.
filetype = 'ASC'.
ptab_line-name = 'FILENAME'.
ptab_line-kind = cl_abap_objectdescr=>exporting.
GET REFERENCE OF filename INTO ptab_line-value.
INSERT ptab_line INTO TABLE ptab.
ptab_line-name = 'FILETYPE'.
ptab_line-kind = cl_abap_objectdescr=>exporting.
GET REFERENCE OF filetype INTO ptab_line-value.
INSERT ptab_line INTO TABLE ptab.
ptab_line-name = 'DATA_TAB'.
ptab_line-kind = cl_abap_objectdescr=>changing.
GET REFERENCE OF text_tab INTO ptab_line-value.
INSERT ptab_line INTO TABLE ptab.
ptab_line-name = 'FILELENGTH'.
ptab_line-kind = cl_abap_objectdescr=>importing.
GET REFERENCE OF fleng INTO ptab_line-value.
INSERT ptab_line INTO TABLE ptab.
etab_line-name = 'OTHERS'.
etab_line-value = 4.
INSERT etab_line INTO TABLE etab.
TRY.
    CALL METHOD (class)=>(meth)
      PARAMETER-TABLE
        ptab
      EXCEPTION-TABLE
        etab.
    CASE sy-subrc.
      WHEN 1.
    ENDCASE.
CATCH cx_sy_dyn_call_error INTO exc_ref.
    exc_text = exc_ref->get_text( ).
    MESSAGE exc_text TYPE 'I'.
ENDTRY.
BR,
Valentin

Error on /SafeMode: error while trying to run project uncaught exception thrown by method called

i try run VS 2012 with /SafeMode. I create new empty Winform. When I start debug, I got:
"error while trying to run project uncaught exception thrown by method called through reflection"

Hi Matanya Zac，
Did you restart your machine? How about installing the VS2012 update 4?
>>error while trying to run project uncaught exception thrown by method
Did you install the VS update in your VS IDE? I met this issue before which was related to the VS update:
https://social.msdn.microsoft.com/Forums/vstudio/en-US/5ead8ee9-ea09-4060-88b0-ee2e2044ff82/error-while-trying-to-run-a-project-uncaught-exception-thrown-by-method-called-through-reflection?forum=vsdebug
If still no help, I suggest you repair your VS, and then restart your machine, test the result.
Best Regards,
Jack
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AcquireConnection method call to the connection manager Excel connection Manager failed

I used VS Studio 2008 (BIDS version 10.50.2500.0) on an WinXp machine (v 5.1.2600 SP3 Build 2600) to create a package that writes multiple query results to different tabbed sheets of a single excel spreadsheet. The package was working just fine and has run
successfully multiple times, but all of a sudden when opening the project, every single Data Flow task with an Excel Connection Manager displayed error icons. Each raises the following error message when attempting to open the Advanced Editor:
SSIS Error Code DTS_E_OLEDBERROR. An OLE DB error has occurred. Error code: 0x80004005 Description: "Unspecified error". Error at DataFlow task name: SSIS error Code DTS_E_CANNOTACQUIRECONNECTIONFROMCONNECTIONMANAGER. The AcquireConnection method
call to the connection manager Excel connection Manager failed with error code 0xC0202009. There may be error messages posted before this with more information on why the Acquire Connection method call failed. Exception from HRESULT: 0Xc020801c (Microsoft.SQlServer.DTSPipelineWrap)
From the time I created the original package (when it worked fine) until now:
1) I have been using the same computer, the same login account and the same permissions.
2) I have been writing to the same (32 bit) 2010 Excel file (which I created) in a folder on my local machine.
3) The filename and location have not changed; a template file is used each time to move and overwrite the previous file. Both are in the same locations.
4) I can independently open the target Excel file and the template Excel files with no errors.
6) The ConnectionString has not changed. The Connnection String I am using is
Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\Conversion\Conversion\Results_dt01.xlsx;Extended Properties="EXCEL 12.0 XML;HDR=YES;".
7) Run64BitRuntime is set to False.
8) Delay Validation is set to true
9) This is not running under a SQL job
10) There are no child packages being run
I CAN create a NEW Excel Connection Manager, assigning it the exact same target Excel spreadsheet, successfully, but when I attempt to assign it to the Data Flow destination this error occurs:
"Test connection failed because of an error in initializing provider. Unspecified error."
Thinking that the driver might be corrupt, I opened a second SSIS package, which also uses the Excel Connection Manager (same driver) and this package continues to work fine on the same workstation with no errors.
I have searched online for causes of this error for many hours and found nothing that helps me to solve this issue.
Does anyone have any suggestions for me?

Yes, I have verified that the Excel file is not in use or opened by anyone, including me. It has been two months since I opened this particular package, although I have been working with other packages in this project. I just discovered that another
package in the same project has the same problem - all Data Flows that output to an Excel Destination now have the same error icons. This second packages outputs to an entirely different Excel file than in the first package. A summay:
Package #1 has error on every Excel Destination and uses templateA to overwrite fileA and then writes to fileA
Package #2 has error on every Excel Desintation and uses templateB to overwrite fileB and then writes to fileB
Package #3 has no error on any Excel Destination and is linked to multiple files (none are A or B)
Package #1 and #2 are in the same project, but Package #3 is in a separate project .
I will try replacing the Excel files with new ones for Package 1 and 2.

[Load data from excel file [1]] Error: SSIS Error Code DTS_E_CANNOTACQUIRECONNECTIONFROMCONNECTIONMANAGER. The AcquireConnection method call to the connection manager "Excel Connection Manager" failed with error code 0xC0202009. There may be error messa

Error
[Load data from excel file [1]] Error: SSIS Error Code DTS_E_CANNOTACQUIRECONNECTIONFROMCONNECTIONMANAGER. The AcquireConnection method call to the connection manager "Excel Connection Manager" failed with error code 0xC0202009. There
may be error message
I am using BIDS Microsoft Visual Studio 2008 and running the package to load the data from excel .
My machine has 32 bit excel hence have set property to RUN64BITRUNTIME AS FALSE.
But the error still occurs .
I checked on Google and many have used Delay validation property at Data flow task level to true but even using it at both excel connection manager and DFT level it doesnt work
Mudassar

Thats my connection string
Provider=Microsoft.ACE.OLEDB.12.0;Data Source=E:\SrcData\Feeds\Utilization.xlsx;Extended Properties="Excel 12.0;HDR=NO";
Excel 2010 installed and its 32 bit edition
Are you referring to install this component -AccessDatabaseEngine_x64.exe?
http://www.microsoft.com/en-us/download/details.aspx?id=13255
Mudassar
You can try an OLEDB provider in that case
see
http://dataintegrity.wordpress.com/2009/10/16/xlsx/
you might need to download and install ms access redistributable
http://www.microsoft.com/en-in/download/details.aspx?id=13255
Please Mark This As Answer if it helps to solve the issue Visakh ---------------------------- http://visakhm.blogspot.com/ https://www.facebook.com/VmBlogs

What are the methods called while navigating from one applet to another one

Hi All,
Could any one brief me about "When you navigate from one applet to another what are the methods called ?".
Thanks in advance.
Best Regards,
N.Madhusudhanan.

http://forum.java.sun.com/thread.jsp?forum=421&thread=426771&tstart=0&trange=100

Issue with a method call in a TaskFlow (works 2 times instead of 1)

Hi guys,
i'm using jdev11.1.1.1.2.0 and the integrated weblo or remote weblo 10.3.2.0.
I'm encountering a problem with a method call which is invoked inside a Task Flow.
Let me tell us the details of :
I'm invoking a method call which is part of a Task Flow from the backingbean of the view which is placed before the method call in the taskFlow diagram.
AN outcome String from the method of the backing bean allows to navigate to the method of the Task flow.
The method call is called and works normally BUT MY PROBLEM IS THAT THE METHOD IS CALLED TWO TIMES SO THE RESULT IS FALSE.
For information, the second time the method is called it takes care of the result when it is invoked the first time. So its parameters are updated and are a little different from the first time to the second time.
NB : This method consists of inserting a row in the database. My result is 2 rows inserted instead of one.
Thanks for help for this strange behaviour

Hi
create a temp calculated column
=IF(ISBLANK([Duration]),"",[Item Start Date]+([Duration])
and check if it's working OK
Romeo Donca, Orange Romania (MCSE, MCITP, CCNA) Please Mark As Answer if my post solves your problem or Vote As Helpful if the post has been helpful for you.

Abstract method called in an abstract class

Hello,
I am writing some code that I'd like to be as generic as possible.
I created an abstract class called Chromozome. This abstract class has a protected abstract method called initialize().
I also created an abstract class called Algorithm which contains a protected ArrayList<Chromozome>.
I would like to create a non abstract method (called initializePopulation()) which would create instances of Chromozome, call their method initialize() and full the ArrayList with them.
In a practical matter, only subclass of Algorithm will be used, using an ArrayList of a subclass of Chromozome implementing their own version of initialize.
I have been thinking of that and concluded it was impossible to do. But I'd like to ask more talented peaple before forgetting it !
Thanks,
Vincent

Ok, let's it is not impossible, juste that I had no idea of how doing it :-)
The difficulty is that Algorithm will never have to deal with Chromozome itself, but always with subclass of Chromozome. This is usually not an issue, but in that case, Algorithm is required to create instances of the desired subclass of Chromozome, but without knowing in advance wich subclass will be used (I hope what I say makes any sense).
Actually I may have found a way in the meantime, but maybe not the best one.
I created in Algorithm an abstract method :
protected abstract Chromozome createChromozome()The method initializePopulation will call createChromozome instead of calling directly the constructor and the initialize() method of Chromozome.
Then subclass of Algorithm will implement the method createChromozome using the desired subclass of Chromozome.

Ecatt script fails due "Error in OLE API method Call" error

Hi ,
Ecatt scripts fails due to "Error in OLE API method Call" error, this error message occurs once a while.
We are calling testpartner scripts from Ecatt using REFEXT command. At times this ECATT script fails due to above issue.
Please help in solving this issue.
Thanks,
Asha

>
Asha Nagaraj wrote:
> Hi ,
>
> Ecatt scripts fails due to "Error in OLE API method Call" error, this error message occurs once a while.
>
> We are calling testpartner scripts from Ecatt using REFEXT command. At times this ECATT script fails due to above issue.
>
> Please help in solving this issue.
>
> Thanks,
> Asha
Hi Asha,
Are those components are connected and the necessay settings has been done?
Regards,
SSN.

Tag.setParent() method call

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