Lifespan of Request, Session and Context Attributes

I'm studying for the SCWCD exam and am hoping to clarify a few points on the lifespan of attribute objects bound to the various request, session and context web scopes.
Do request attributes persist as long as the request is being handled by some servlet? In other words, once the response is committed are those objects unbound and destroyed?
Similarly, I'm assuming session attributes are unbound and destroyed when the session either times out or is explicitly terminated.
Lastly, for context attributes, which are available to the entire web application, are these simply available
until explicitly removed?
Thanks.

Request: available until the HttpServletRequest object goes out of scope (at the end of the doService or associated methods). The attributes here are basically just stored in a HashMap in that object
Session: available until the session no longer exists, which occurs when the session times out (NOT when the user closes their browser), or when the session is terminated by the server code
Context: Available until the container stops, such as upon a JVM restart
NOTE: Specific objects in all three contexts can be removed and added at any time by the server code

Similar Messages

Simple Types and Context Attributes

Hello All,
Can someone be kind enough to explain the difference between using a context attribute and a Simple Type ? For example... what's the difference (and I am sure there is ) between a context attribute "Name" that is declared to be of String type and a simple type "Name" that is of built-in type String ?
from
Kwok Wei

Some links on SimpleTypes and its usage.
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/webas/webdynpro/value help in web dynpro applications.pdf
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/webas/webdynpro/internationalization of web dynpro applications.pdf
Regards, Anilkumar

Need help - session and lost attribute...

Hi,
We store some attributes in the session. In the web.xml we have session-timeout 20. (it's in minutes). If user use IE 5.5, and is inactive more than 1 minute, and then he send new request from browser (IE 5.5 or 5.0) to application running under oc4j, our attributes is null. (Because, and I don't know why, new session is created)
In the IE 6.0, Mozila, Netscape it takes 20 minutes - it's exactly what we want.
Also we try applying SP2, patches on the IE 5.5. and nothing change.
thaks for any advice
zajo

Another info,
It's happening only in a https protocol (SSL),users which have W98 and IE 5.x, 6,x.
Zajo

Scope and context.. ???

Hi...
Can any one clarify me whats the difference between a context and a scope ???
Ex. whats is difference between pageCOntext and pageScope ?

From the API: A PageContext instance provides access to all the namespaces associated with a JSP page, provides access to several page attributes, as well as a layer above the implementation details.
http://java.sun.com/j2ee/1.4/docs/api/javax/servlet/jsp/PageContext.html
With regards to Servlets/JSP, there are four "scopes" for storing attributes in: page, request, session and application. When talking about a scope normally refers to just ONE of those namespaces.
People sometimes do use pageContext and pageScope interchangeably because the method call pageContext.setAttribute() sets an attribute into the pageScope. But the pageContext is much more than that.
Hope I haven't confused you too much
Cheers,
evnafets

How to work with request, response and sessions in JSC

Hi
I have two Servlets ServletA and ServletB. ServletA creates a session and add some attributes to this session. Then it forwards the request to ServletB where the attributes of this session are retrieved and used in response object.
Here is what I am doing in ServletB
- Get the session attrribute. This attribute is of type byte[]
byte[] mydata = (byte[]) request.getSession.getAttribute(data);
response.setContentLength(mydata.length);
OutputStream stream = response.getOutputStream();
stream.write(mydata,0,mydata.length);
stream.close();
My question is ...
How do I achieve this in Creator. ?
Thanks in advance
Srinivas

Hi
I have two Servlets ServletA and ServletB. ServletA
creates a session and add some attributes to this
s session. Then it forwards the request to ServletB
where the attributes of this session are retrieved
and used in response object.
Here is what I am doing in ServletB
- Get the session attrribute. This attribute is of
type byte[]
byte[] mydata = (byte[])
request.getSession.getAttribute(data);
response.setContentLength(mydata.length);
OutputStream stream = response.getOutputStream();
stream.write(mydata,0,mydata.length);
stream.close();
My question is ...
How do I achieve this in Creator. ?
Thanks in advance
SrinivasBy "this" do you mean "how do I access a session attribute that has been placed there by another servlet?"
The base class for all page beans has a bunch of convenience methods available. The simplest one to use for this purpose is getBean(), which searches through request scope, session scope, and application scope for a bean with the name you specify -- and, if its a managed bean, will create it for you as well. So, your code would look like this:
String data = ...; // Name of the attribute you want
byte[] mydata = (byte[]) getBean(data);There is an additional quirk related to what you're actually trying to do, though ... it looks like you are trying to write out binary content (perhaps an image loaded from the database or something). It is not possible to mix binary and text output in a single response.
Your best bet for this particular purpose, then, is to continue using ServletA and ServletB just as you have been. The applications created by Creator are standard servlet-based web applications, so you can use additional servlets and all the other goodies (although you'll have to declare them yourself in the web.xml file, as usual).
Craig

Data storage in a context node and in a context attribute.

Hi All,
I want to know how exactly the data is stored in context node (internal table) and in context attribute (single value) in memory during the runtime.
Regards,
Yugesh A

Hi Andrea,
Sorry I got it wrong , for lr_comp you will have to take reference from controller IMPL class.
DATA:
          lr_entity TYPE REF TO cl_crm_bol_entity,
        lr_comp TYPE REF TO ( component controller IMPL class),
         lv_ref_guid     TYPE        crmt_object_guid,
         lr_collection TYPE REF TO cl_crm_bol_bo_col,
         lr_bdc type ref to if_crm_ui_data_context,
         comp_controller type cl_bsp_wd_component_controller.
lr_comp ?= me->comp_controller.
IF lr_comp IS BOUND.
    TRY.
lr_entity ?= lr_comp->ZTYPED_CONTEXT->ZBTCUSTOMERH->collection_wrapper->get_current( ).
     lv_ref_guid = lr_entity->get_property_as_string( iv_attr_name = 'REF_GUID' ).
      CATCH cx_sy_ref_is_initial.
      ENDTRY.
ENDIF.
Hope it helps.
Regards,
Manjeet Singh.

Maintaining Sessions through Multiple Servlets and Contexts

Hi,
I have a webapplication that works like this:
* User connects to a login servlet on HTTPS
* Users information is authenticated on HTTPS
* An object is stored in the session for other servlets to validate the users access
* Authenticated users are forwarded to an HTTP page where the session is used to make sure they were granted access
My problem is this....Since I create the session in an HTTPS context, when I am in the HTTP context, I am unable to access the session and constantly get NULL. Is there any way that I can access the session from an HTTP context?

What you can do is, just login using HTTPS and switch over to HTTP
and then store data in session.That is true, but what I want in the session is basically a flag on whether or not the user was granted access. I would much rather set all that up on the secure line, and then just access it from the unsecure ones...
For example, you are creating session using the
http://testdev:port/index.jsp page.
If access the same page(with hostname)
http://10.300.20.18:8080/index.jsp, you can't get the session even
though both are same web server and same web application. Because the
browser treats it different sessionI think if you use my above solution with the explicit passing of the jsessionid, you can move from one domain to another and still maintain session. Not positive on that though...

Not able to get the context attribute set in ServletContextListener

Hi all,
I have written a simple ServletContextListener and set an attribute in it. when i am trying to retrieve the attribute value in my servlet, I am getting as null. Could anybody please let me know about this if i need to add any more changes.
Below is the complete code of my sample application
web.xml
<web-app>
<servlet>
<servlet-name>myServlet</servlet-name>
<servlet-class>com.mypackage.MyServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>myServlet</servlet-name>
<url-pattern>/*</url-pattern>
</servlet-mapping>
<listener>
<listener-class>
com.mypackage.MyContextListener
</listener-class>
</listener>
<context-param>
<param-name>testMe</param-name>
<param-value>TestedSuccessfully</param-value>
</context-param>
</web-app>
ContextListener
package com.mypackage;
import javax.servlet.ServletContext;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
public class MyContextListener implements ServletContextListener{
public void contextDestroyed(ServletContextEvent arg0) {
public void contextInitialized(ServletContextEvent arg0) {
ServletContext context = arg0.getServletContext();
String testApplication = context.getInitParameter("testMe");
context.setAttribute("myTest", "mkmmkmmkm");
Servlet
package com.mypackage;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletContext;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class MyServlet extends HttpServlet{
public void doGet(HttpServletRequest request, HttpServletResponse response){
ServletContext context = getServletContext();
if(context != null){
response.setContentType("text/html");
try {
String output = (String) getServletContext().getAttribute("testMe");
PrintWriter out = response.getWriter();
out.print("The required value is... "+output);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
OUTPUT
When accessed with any url as below:
http://localhost:8080/helloworld/u
gettting output as "The required value is... null" . Because i set the context attribute, I am expecting not null. Can anybody suggest me on this.

context.setAttribute("myTest", "mkmmkmmkm");
String output = (String) getServletContext().getAttribute("testMe");You set "myTest" but try to get "testMe"

How do I get at Session using Context's

Hi,
Please can someone help me out. I am working on an extended version of the jboss DatabaseServerLoginModule and part of this involves overidding the login() method. The login() method provides no parameters such as request etc and so I have no way of getting at the session.
How can I get at the session using Context's?
i.e. starting with say InitialContext and going from there....
any ideas?
Regards,
Paul.

Sounds like a JBoss question to me. Seems to me that JBoss support would be the place to go for answers. It's really not a general Java programming question.

Using Static Variable against Context Attribute for Holding IWDView

Dear Friends,
I have a method which is in another DC which has a parameter of the type IWDView. In my view, I will have an action which will call the method in another component by passing the value for the view parameter. Here, I can achieve this in 2 types. One is - I declare a static variable and assign the wdDoModifyView's view as parameter value and I can pass this variable as parameter whenever calling that method or the second way - create an attribute and assign the same wdDoModifyView's view parameter as its value. Whenever I call this method, I can pass this attribute as parameter. What is the difference between these two types of holding the value since I am storing the same value i.e., wdDoModifyView's view parameter. But when I trigger the action from different user sessions, the first type of code (using static variable) prints the same value in both the sessions for view.hashCode() and View.toString(), but the same is printing the different values when I pass the attribute which holds the view parameter.
Clarification on this is highly appreciated
The problem I face is when I use static variable to get the view instance and export the data using the UI element's id, the data belonging to different user sessions is mixed up where as when I use Context Attribute, the same problem doesn't arise. I want to know the reason why it is so. Is there any other place or way where I can get the current view instance of each session instead of wdDoModifyView?

Hi Sujai ,
As you have specified the problem that we face when we use static attributes, when end users are using the application .
Static means i have n number of objects but the static variable value will remain same every where.
when it is context attribute for every object i.e nth object you have a nth context attribute i mean nth copy of the context attribute.
so every user has a unique Iview parameter , when context is used and
when static is used , assume you have userA , his iview is set this intially and u have another user B , when he is using , since the variable is static and when you access this variable you will get the value of userA.
Regards
Govardan Raj

File and boolean attribute on item

Hi,
I work with Oracle9iAS Portal PL/SQL API (9.0.2.6).
I define an item type (CAID = 213/ ID = 37399) with several attributes. When I try to create/modify an item I have problems with boolean attributes and file attributes.
In case of boolean attributes, I'm not able to set the value to true. I try with several values (IS_ON, True, 1) but the attribute is still set to false. Is there anything wrong with the value I assign to the attribute before creating the item ? When I try to create the item and then modifying the attribute, the value stay to false.
For the file attributes, I use the upload_blob function inside wwsbr_api and the file appear in the wwdoc_document table. I set the file attribute value with the return value of the upload_blob function.
When I call the add_item_post_upload, an error occurs (ORA-29532: Java call terminated by uncaught Java exception: java.lang.NullPointerException : -29532)
Is this a bug or not ?
Thanks Eddy.
For help see my sample code below :
(ID of attribute, page, region are correct. I also test each type of attribute separately)
declare
l_master NUMBER;
l_store portal.wwsto_api_session;
l_custom_attribute portal.wwsbr_type.array := portal.wwsbr_type.empty;
l_custom_attribute_id portal.wwsbr_type.array := portal.wwsbr_type.empty;
l_custom_attribute_caid portal.wwsbr_type.array := portal.wwsbr_type.empty;
l_custom_attribute_data_type portal.wwsbr_type.array := portal.wwsbr_type.empty;
l_str VARCHAR2(100);
l_Blob BLOB;
l_filename VARCHAR2(100);
begin
-- set context
portal.wwctx_api.SET_CONTEXT('ctx','ctx01','');
-- load a session (Allow use of set_Attribute ...)
DBMS_OUTPUT.put_line('Load session');
l_store := portal.wwsto_api_session.load_session('ctx','ctx');
-- set parameters
-- item type = 'Item_ed'
l_store.set_attribute('ITEM_TYPE', 37399); -- Item type id
l_store.set_attribute('ITEM_CAID', 213); -- Item type caid (page group owner of item type)
l_store.set_attribute('PAGE_GROUP_ID', 213); -- Page group
l_store.set_attribute('FOLDER_ID', 37179); -- Page within page group
l_store.set_attribute('REGION_ID', 3216); -- Region id within page
-- see wwv_user_corners to determine template of page
-- see wwsbr_all_folder_regions for region display_name and region id (for template)
-- Get date format to insert right date string
SELECT DISTINCT value
INTO l_str
FROM v$nls_parameters
WHERE parameter = 'NLS_DATE_FORMAT';
dbms_output.put_line('date format ins : ' || l_str);
-- define attributes (for example, id are hardcoded
DBMS_OUTPUT.put_line('Define attributes');
-- 1080 = PRODUCT_CODE
l_custom_attribute(1) := 'MEHI';
l_custom_attribute_id(1) := 1080;
l_custom_attribute_caid(1) := portal.wwsbr_api.SHARED_OBJECTS; -- = 0
l_custom_attribute_data_type(1) := 'text';
-- 1081 = PRODUCT_AUTHOR
l_custom_attribute(2) := 'ESTAT';
l_custom_attribute_id(2) := 1081;
l_custom_attribute_caid(2) := portal.wwsbr_api.SHARED_OBJECTS; -- = 0
l_custom_attribute_data_type(2) := 'text';
-- 1469 = LANGUAGE
l_custom_attribute(3) := 'fr';
l_custom_attribute_id(3) := 1469;
l_custom_attribute_caid(3) := portal.wwsbr_api.SHARED_OBJECTS; -- = 0
l_custom_attribute_data_type(3) := 'text';
-- 3 = title
l_custom_attribute(4) := 'title value';
l_custom_attribute_id(4) := 3;
l_custom_attribute_caid(4) := portal.wwsbr_api.SHARED_OBJECTS; -- = 0
l_custom_attribute_data_type(4) := 'text';
-- 50 = wwsbr_text_
l_custom_attribute(5) := 'wwsbr_text_ value';
l_custom_attribute_id(5) := 50;
l_custom_attribute_caid(5) := portal.wwsbr_api.SHARED_OBJECTS; -- = 0
l_custom_attribute_data_type(5) := 'text';
-- 1464 = Release date
l_custom_attribute(6) := TO_CHAR(TO_DATE('21-JAN-2004 10:00 AM', 'DD-MON-YYYY HH12:MI PM'),l_str);
l_custom_attribute_id(6) := 1464;
l_custom_attribute_caid(6) := portal.wwsbr_api.SHARED_OBJECTS; -- = 0
l_custom_attribute_data_type(6) := 'date';
-- 1108 = download
l_custom_attribute(7) := 'http://www.oracle.com/';
l_custom_attribute_id(7) := 1108;
l_custom_attribute_caid(7) := portal.wwsbr_api.SHARED_OBJECTS; -- = 0
l_custom_attribute_data_type(7) := 'url';
-- 1485 = CDROM
l_custom_attribute(8) := '1';
l_custom_attribute_id(8) := 1485;
l_custom_attribute_caid(8) := portal.wwsbr_api.SHARED_OBJECTS; -- = 0
l_custom_attribute_data_type(8) := 'boolean';
-- 1111 = PAGE_NB
l_custom_attribute(8) := '1';
l_custom_attribute_id(8) := 1111;
l_custom_attribute_caid(8) := portal.wwsbr_api.SHARED_OBJECTS; -- = 0
l_custom_attribute_data_type(8) := 'number';
-- 1783 = COVER_IMAGE
-- get image
SELECT BANNER
INTO l_Blob
FROM metadata_tbl
WHERE PRODUCT_CODE = 'caa10000';
-- upload image in repository
l_filename := portal.wwsbr_api.upload_blob('BANNERupload',l_Blob, 'image/pjpeg');
DBMS_OUTPUT.put_line('filename : ' || l_filename);
l_custom_attribute(9) := l_filename;
l_custom_attribute_id(9) := 1783;
l_custom_attribute_caid(9) := portal.wwsbr_api.SHARED_OBJECTS; -- = 0
l_custom_attribute_data_type(9) := 'file';
DBMS_OUTPUT.put_line('Insert item starts');
l_master := portal.wwsbr_api.add_item_post_upload(
p_caid => l_store.get_attribute_as_number('PAGE_GROUP_ID'),
p_folder_id => l_store.get_attribute_as_number('FOLDER_ID'),
p_display_name => 'Insert : MEHI',
p_type_id => l_store.get_attribute_as_number('ITEM_TYPE'),
p_type_caid => l_store.get_attribute_as_number('ITEM_CAID'),
p_region_id => l_store.get_attribute_as_number('REGION_ID'), --to set or default
p_display_option => portal.WWSBR_API.IN_PLACE,
-- p_category_id in number default general_category,
-- p_category_caid in number default shared_objects,
-- p_perspectives in g_perspectiveidarray default g_perspectiveidemptyarray,
-- p_perspectives_caid in g_caid_array default g_empty_caid_array,
-- p_author in varchar2 default wwctx_api . get_user,
-- p_image_name => l_filename,
-- p_image_alignment in varchar2 default align_left,
-- p_description in varchar2 default null,
-- p_keywords in varchar2 default null,
-- p_file_name =>l_filename, --in varchar2 default null,
p_text => 'text field',
-- p_url in varchar2 default null,
-- p_plsql in varchar2 default null,
-- p_plsql_execute_mode in varchar2 default null,
-- p_plsql_execute_user in varchar2 default null,
-- p_folderlink_id in number default null,
-- p_folderlink_caid in number default null,
-- p_publish_date in varchar2 default null,
-- p_expire_mode in varchar2 default permanent,
-- p_expiration in varchar2 default null,
-- p_master_item_id in number default null,
-- p_hide_in_browse in number default no,
-- p_checkable in number default no,
-- p_parent_item_id in number default 0,
p_attribute_id => l_custom_attribute_id,
p_attribute_caid => l_custom_attribute_caid,
p_attribute_data_type => l_custom_attribute_data_type,
p_attribute_value => l_custom_attribute
DBMS_OUTPUT.put_line('Insert item ends. Item identifier : ' || l_master);
-- Invalidate cache from SQLPLUS
portal.wwpro_api_invalidation.execute_cache_invalidation;
DBMS_OUTPUT.put_line('Cache invalidated');
-- Drop session
portal.wwsto_api_session.drop_session('ctx','ctx');
-- Clean context
portal.wwctx_api.clear_context;
COMMIT;
exception
WHEN portal.wwctx_api.AUTHENTICATION_EXCEPTION THEN
DBMS_OUTPUT.PUT_LINE('AUTHENTICATION_EXCEPTION : ' || sqlerrm);
ROLLBACK;
WHEN portal.wwsbr_api.CANNOT_INSERT_DOCUMENT THEN
DBMS_OUTPUT.PUT_LINE('CANNOT INSERT DOCUMENT : ' || sqlerrm);
ROLLBACK;
WHEN portal.wwsbr_api.DUPLICATE_FOLDER THEN
DBMS_OUTPUT.PUT_LINE('DUPLICATE_FOLDER : ' || sqlerrm);
ROLLBACK;
WHEN portal.wwsbr_api.DUPLICATE_ID THEN
DBMS_OUTPUT.PUT_LINE('DUPLICATE_ID : ' || sqlerrm);
ROLLBACK;
WHEN portal.wwsbr_api.DUPLICATE_NAME THEN
DBMS_OUTPUT.PUT_LINE('DUPLICATE_NAME : ' || sqlerrm);
ROLLBACK;
WHEN portal.wwsbr_api.FOLDER_VERSIONING_IS_AUDIT THEN
DBMS_OUTPUT.PUT_LINE('FOLDER_VERSIONING_IS_AUDIT : ' || sqlerrm);
ROLLBACK;
WHEN portal.wwsbr_api.FOLDER_VERSIONING_IS_NONE THEN
DBMS_OUTPUT.PUT_LINE('FOLDER_VERSIONING_IS_AUDIT : ' || sqlerrm);
ROLLBACK;
WHEN portal.wwsbr_api.ILS_DISABLED THEN
DBMS_OUTPUT.PUT_LINE('ILS_DISABLED : ' || sqlerrm);
ROLLBACK;
WHEN portal.wwsbr_api.ILS_DISABLED_FOR_ITEM THEN
DBMS_OUTPUT.PUT_LINE('ILS_DISABLED_FOR_ITEM : ' || sqlerrm);
ROLLBACK;
WHEN portal.wwsbr_api.INVALID_CAID THEN
DBMS_OUTPUT.PUT_LINE('INVALID CAID : ' || sqlerrm);
ROLLBACK;
WHEN portal.wwsbr_api.INVALID_CATEGORY THEN
DBMS_OUTPUT.PUT_LINE('INVALID CATEGORY : ' || sqlerrm);
ROLLBACK;
WHEN portal.wwsbr_api.INVALID_EXPIRE_DATE THEN
DBMS_OUTPUT.PUT_LINE('INVALID_EXPIRE_DATE : ' || sqlerrm);
ROLLBACK;
WHEN portal.wwsbr_api.INVALID_EXPIRE_DATE_FORMAT THEN
DBMS_OUTPUT.PUT_LINE('INVALID_EXPIRE_DATE_FORMAT : ' || sqlerrm);
ROLLBACK;
WHEN portal.wwsbr_api.INVALID_EXPIRE_NUMBER THEN
DBMS_OUTPUT.PUT_LINE('INVALID_EXPIRE_NUMBER : ' || sqlerrm);
ROLLBACK;
WHEN portal.wwsbr_api.INVALID_FOLDER THEN
DBMS_OUTPUT.PUT_LINE('INVALID_FOLDER : ' || sqlerrm);
ROLLBACK;
WHEN portal.wwsbr_api.INVALID_FOLDER_ID THEN
DBMS_OUTPUT.PUT_LINE('INVALID FOLDER ID : ' || sqlerrm);
ROLLBACK;
WHEN portal.wwsbr_api.INVALID_ITEM_ID THEN
DBMS_OUTPUT.PUT_LINE('INVALID ITEM ID : ' || sqlerrm);
ROLLBACK;
WHEN portal.wwsbr_api.INVALID_ITEMTYPE THEN
DBMS_OUTPUT.PUT_LINE('INVALID ITEMTYPE : ' || sqlerrm);
ROLLBACK;
WHEN portal.wwsbr_api.INVALID_MOVE THEN
DBMS_OUTPUT.PUT_LINE('INVALID MOVE : ' || sqlerrm);
ROLLBACK;
WHEN portal.wwsbr_api.INVALID_NAME THEN
DBMS_OUTPUT.PUT_LINE('INVALID NAME : ' || sqlerrm);
ROLLBACK;
WHEN portal.wwsbr_api.INVALID_NUMBER THEN
DBMS_OUTPUT.PUT_LINE('INVALID NUMBER : ' || sqlerrm);
ROLLBACK;
WHEN portal.wwsbr_api.INVALID_PERSPECTIVE THEN
DBMS_OUTPUT.PUT_LINE('INVALID PERSPECTIVE : ' || sqlerrm);
ROLLBACK;
WHEN portal.wwsbr_api.INVALID_PLSQL_EXECUTE_USER THEN
DBMS_OUTPUT.PUT_LINE('INVALID_PL/SQL_EXECUTE_USER : ' || sqlerrm);
ROLLBACK;
WHEN portal.wwsbr_api.INVALID_PUBLISH_DATE_FORMAT THEN
DBMS_OUTPUT.PUT_LINE('INVALID_PUBLISH_DATE_FORMAT : ' || sqlerrm);
ROLLBACK;
WHEN portal.wwsbr_api.INVALID_PUBLISH_DATE_VALUE THEN
DBMS_OUTPUT.PUT_LINE('INVALID_PUBLISH_DATE_VALUE : ' || sqlerrm);
ROLLBACK;
WHEN portal.wwsbr_api.INVALID_USERNAME THEN
DBMS_OUTPUT.PUT_LINE('INVALID USERNAME : ' || sqlerrm);
ROLLBACK;
WHEN portal.wwsbr_api.ITEM_CREATION_ERROR THEN
DBMS_OUTPUT.PUT_LINE('ITEM_CREATION ERROR : ' || sqlerrm);
ROLLBACK;
WHEN portal.wwsbr_api.ITEM_NOT_FOUND_ERROR THEN
DBMS_OUTPUT.PUT_LINE('ITEM NOT FOUND ERROR : ' || sqlerrm);
ROLLBACK;
WHEN portal.wwsbr_api.ITEM_UPDATE_ERROR THEN
DBMS_OUTPUT.PUT_LINE('ITEM_UPDATE_ERROR : ' || sqlerrm);
ROLLBACK;
WHEN portal.wwsbr_api.MISSING_DISPLAY_NAME THEN
DBMS_OUTPUT.PUT_LINE('MISSING DISPLAY NAME : ' || sqlerrm);
ROLLBACK;
WHEN portal.wwsbr_api.MISSING_ITEM_TYPE THEN
DBMS_OUTPUT.PUT_LINE('MISSING ITEM TYPE : ' || sqlerrm);
ROLLBACK;
WHEN portal.wwsbr_api.MISSING_NAME THEN
DBMS_OUTPUT.PUT_LINE('MISSING NAME : ' || sqlerrm);
ROLLBACK;
WHEN portal.wwsbr_api.MISSING_PLSQL_EXECUTE_USER THEN
DBMS_OUTPUT.PUT_LINE('MISSING plsql execute user : ' || sqlerrm);
ROLLBACK;
WHEN portal.wwsbr_api.NAME_TOO_LONG THEN
DBMS_OUTPUT.PUT_LINE('name too long : ' || sqlerrm);
ROLLBACK;
WHEN portal.wwsbr_api.NO_ITEM_REGION THEN
DBMS_OUTPUT.PUT_LINE('not item region : ' || sqlerrm);
ROLLBACK;
WHEN portal.wwsbr_api.NO_MASTER_ITEM_ID THEN
DBMS_OUTPUT.PUT_LINE('no master item id : ' || sqlerrm);
ROLLBACK;
WHEN portal.wwsbr_api.NOT_ENOUGH_PRIVS THEN
DBMS_OUTPUT.PUT_LINE('not enough privs : ' || sqlerrm);
ROLLBACK;
WHEN portal.wwsbr_api.NULL_EXPIRE_DATE THEN
DBMS_OUTPUT.PUT_LINE('null expire date : ' || sqlerrm);
ROLLBACK;
WHEN portal.wwsbr_api.NULL_EXPIRE_NUMBER THEN
DBMS_OUTPUT.PUT_LINE('null expire number : ' || sqlerrm);
ROLLBACK;
WHEN portal.wwsbr_api.PERMISSION_DENIED THEN
DBMS_OUTPUT.PUT_LINE('permission denied : ' || sqlerrm);
ROLLBACK;
WHEN portal.wwsbr_api.PLSQL_REQUIRED THEN
DBMS_OUTPUT.PUT_LINE('plsql required : ' || sqlerrm);
ROLLBACK;
WHEN portal.wwsbr_api.QUOTA_EXCEEDED THEN
DBMS_OUTPUT.PUT_LINE('quota exceeded : ' || sqlerrm);
ROLLBACK;
WHEN portal.wwsbr_api.REQD_ATTR_MISSING THEN
DBMS_OUTPUT.PUT_LINE('reqd attr missing : ' || sqlerrm);
ROLLBACK;
WHEN portal.wwsbr_api.UNKNOWN_ERROR THEN
DBMS_OUTPUT.PUT_LINE('unknown error : ' || sqlerrm);
ROLLBACK;
WHEN portal.wwsbr_api.URL_REQUIRED THEN
DBMS_OUTPUT.PUT_LINE('url required : ' || sqlerrm);
ROLLBACK;
when OTHERS then
DBMS_OUTPUT.PUT_LINE('OTHERS : ' || sqlerrm || ' : ' || sqlcode);
ROLLBACK;
end;

Hi Eddy:
On Friday, we put in a TAR with Oracle support about the identical problem. When editing an item using the API, the boolean attributes always reset. The values of the boolean attributes aren't even being changed. The only reason we need to set them again is the limitation of the API where you have to feed all attributes back in.
So far, Oracle has said it sounds like a bug and they want to know the exact sequence of steps to repeat it.
Rgds/Mark M.
Portal 9.0.2.6

Web session and authentification session pb with wl6.0

Hi,
I am evaluating weblogic 6.0 on windows 2000.
I have a little web application, with some URL (html, servlet...), I want to protect.
So I defined a <security-constraint> element in my web.xml
file, and I binded the logical roles with real participant in
weblogic.xml
It works very well at startup. I launch a browser, request a protected URL and the
authentification window popup. I enter valid info and I can access my URL.
Perfect.
Now I want to give the possibility to my user to terminate a session, to disconmect,
so I had a button, (disconnect) which invoque a servlet which get the current session
and invalidate it.
I checked, the session is destroyed and a new one is defined (new ID, new counter...),
but my user are still connected. It means that if I want to acces a protected URL,
I still can do it.
more strange. In both a secured and unsecured page I print the User Principal. When
I connect, the two pages print the same and right value.
But if I disconnect, the unsecured page print null(no connection for this session)
and the secured page print the principal I used to connect in the previous message.
I know this message is a little bit long, but I tried to give the cleares context.
Has anyone ancountered that kind of problem? Is there a solution.
I pass the test with netscape 4.76, netscape 6.01, Internet Explorer 5.50. I got
the same behavior each time...
Thanks
Nicolas

If you use a Form to authenticate then the browser is unaware of the
username and password. The PetStore demonstrates how it's done in
..\samples\petStore\source\com\bea\estore\util\WLSecurityAdapter.java
"Nicolas GANDRIAU" <[email protected]> wrote in message
news:[email protected]...
>
Hi John,
thank you for your answer. It confirmed my first guess, that the
browser keep the secret info and send them back to the server.
The server does not make any attachment with the current session.
But you talk about a "ServletAuthentication" example which presents theway to bind
the login info in the session. I have not found this servlet, in weblogic6.0 distribution
or J2EE API.
Can you give me the exact reference of this servlet.
Thank you for your help.
Nicolas
"John Lindwall" <[email protected]> wrote:
Nicolas,
It is my understanding that the authentication information for this
scenario
(ie HTTP BASIC authentication) is not contained in the session -- it is
maintained by the browser and resent with every request. That is why
invalidating the session makes no difference. If you have a HTTPsnooping
utility you will see the "Authorization" information (albeit encodedusing
BASE64) present in the requests from your browser to the server.
FYI: I've noticed that by using the ServletAuthentication class tomanually
perform authentication, it DOES in fact store the authentication info in
the
session. There is a "done()" method in this class which removes thisinfo
from the session (ie performs a logout).
If this link reproduces properly, check it out -- it's a good simple
explanation of what's going on:
http://www.support.lotus.com/sims2.nsf/852561c1006719a98525614100588964/877
a
0ac029a78f8a8525645f0069a34d?OpenDocument
For tons of detail on BASIC authentication see
ftp://ftp.isi.edu/in-notes/rfc2617.txt
John
Nicolas GANDRIAU <[email protected]> wrote in message
news:[email protected]...
Hi,
I am evaluating weblogic 6.0 on windows 2000.
I have a little web application, with some URL (html, servlet...), I
want
to protect.
So I defined a <security-constraint> element in my web.xml
file, and I binded the logical roles with real participant in
weblogic.xml
It works very well at startup. I launch a browser, request a protectedURL
and the
authentification window popup. I enter valid info and I can access myURL.
Perfect.
Now I want to give the possibility to my user to terminate a session,to
disconmect,
so I had a button, (disconnect) which invoque a servlet which get thecurrent session
and invalidate it.
I checked, the session is destroyed and a new one is defined (new ID,new
counter...),
but my user are still connected. It means that if I want to acces aprotected URL,
I still can do it.
more strange. In both a secured and unsecured page I print the UserPrincipal. When
I connect, the two pages print the same and right value.
But if I disconnect, the unsecured page print null(no connection for
this
session)
and the secured page print the principal I used to connect in the
previous
message.
I know this message is a little bit long, but I tried to give the
cleares
context.
Has anyone ancountered that kind of problem? Is there a solution.
I pass the test with netscape 4.76, netscape 6.01, Internet Explorer
5.50.
I got
the same behavior each time...
Thanks
Nicolas

Validation of context attributes with adaptive webservice model

Hi, I am creating a Web Dynpro Java application (on top of Netweaver AS 7.0) using an adaptive webservice model to invoke a webservice.
The webservice has some request attributes of type string with limited length (for example limited to 1 character). I bound the model to component controller context and created a mapping between the component controller context and view context. In the view, I created a form which is bound to the context attributes.
When user enters string values, which are longer than the maximum length specified in webservice WSDL, and submits the form, an exception is thrown when Web Dynpro runtime is trying to assign entered values into context attributes:
com.sap.dictionary.runtime.DdCheckException: Length of character string "abcdef" must be smaller than or same as MaxLength 1;
    at com.sap.dictionary.runtime.DdTypeString.checkValid(DdTypeString.java:195)
    at com.sap.tc.webdynpro.model.webservice.base.model.BaseGenericModelClass.setAttributeValue(BaseGenericModelClass.java:304)
    at com.sap.tc.webdynpro.model.webservice.gci.WSTypedModelClass.setAttributeValue(WSTypedModelClass.java:62)
    at at.gov.bmf.demo.comp.employee.model.OrganizationalAssignment.setEmployeeGroup(OrganizationalAssignment.java:52)
    at at.gov.bmf.demo.comp.employee.wdp.IPublicEmployeeDemo$IOrganizationalAssignmentElement.wdSetObject(IPublicEmployeeDemo.java:1552)
    ... 32 more
This exception is thrown before my non-validating action is executed, so I am not able to prevent it or handle it.
Is there any way how to catch this exception or prevent it?
Does anyone know where these model restrictions are stored? I searched the XML files generated for the model, but I haven't found anything. Does the Web Dynpro runtime access WSDL everytime it needs to validate request parameters?
Thanks,
Tomas

No ,This is the preferred and safer way to separate the Model Node and and Input Node and relationship between them by using mapping.
You create your context structure for input and then on action set user input to model data.
Safer it means : Sometimes it happen that model data not populated properly due to network or wrong user input etc ,this time our presentation will be safe and display the proper error message rather the screen went away with null pointer exception.
Regarding your - it require a lot of work. It too much convince for us that rather than writing 50 lines of code
for only input length validation WebDynpro provides us a better model driven solution.
Best Regards
Satish Kumar

Crashes during a session and also photos disappear from page and also in Face Book

No more information other than photos or pictures disappear from any website page including when using Face Book. Also noticed that even Google Logo above search box disappears including the green arrow for returning to previous page or next page. Firefox also crashes during sessions and a widow message appears advising of the crash and requesting to send this on so the problem can be fixed. I have sent this crash report on numerous occasions but have not had any responses yet and the problem continues. Sometimes it works fine for a few days and then down it goes with same issues as mentioned above.

It is possible that you clicked "Block Images" in the right-click context menu while saving an image.
See:
* http://kb.mozillazine.org/Images_or_animations_do_not_load
You can use these steps to check if images are blocked:
* Open the web page that has the images missing in a browser tab.
* Click the favicon ([[Site Identity Button]]) on the left end of the location bar.
* Click the "More Information" button to open the "Page Info" window with the Security tab selected (also accessible via "Tools > Page Info").
* Go to the <i>Media</i> tab of the "Tools > Page Info" window.
* Select the first image link and scroll down through the list with the Down arrow key.
* If an image in the list is grayed and there is a check-mark in the box "<i>Block Images from...</i>" then remove that mark to unblock the images from that domain.
Your above posted system details show outdated plugin(s) with known security and stability risks that you should update.
# Shockwave Flash 10.1 r53
# Java Plug-in 1.6.0_04 for Netscape Navigator (DLL Helper)
Update the [[Managing the Flash plugin|Flash]] plugin to the latest version.
*http://www.adobe.com/software/flash/about/
Update the [[Java]] plugin to the latest version.
*http://www.oracle.com/technetwork/java/javase/downloads/index.html (Java Platform: Download JRE)

Question regarding IWDTree and context Value Node naming

Hi,
I have a question regarding the IWDTree / IWDTreeNodeType components.
I have a context looking like this:
Context
+ ResponseNode
    + PersonNode (1..1)
      + PersonAddressNode                    (empty node, placeholder)
      | + AdresNode (0..n)
      + PersonChildNode                      (empty node, placeholder)
      | + PersonNode (0..n)
      |   + PersonAddressNode                (empty node, placeholder)
      |     + AddressNode (0..n)
      + PersonParentsNode                    (empty node, placeholder)
        + PersonNode (0..n)
          + PersonAddressNode                (empty node, placeholder)
            + AddressNode (0..n)
The context represents a person, a person's address, and a person's children and parents with their respective addresses.
As a result, on different branches, a PersonNode and AddressNode can appear.
And for some strange reason, all PersonNodes and AddressNodes link to the same ResponseNode.PersonNode.PersonParentsNode.PersonNode and ResponseNode.PersonNode.PersonParentsNode.PersonNode.PersonAddressNode.AddressNode respectively, irregardless of their branch...
Is it illegal to have multiple PersonNode and AddressNode node names, and should they be named uniquely?

Generally, node names need to be unique inside the context, attributes in different nodes can have same names. I wonder if the context structure you described will result in code without compile errors.
The WD Tree can only be used with recursive context nodes or with a hierarchy of non-singleton child nodes.
Can you give an example how your tree should look like at runtime?

Lifespan of Request, Session and Context Attributes

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