Difference Between BackingBean Scope and Request Scope in Manged Beans

Hi,
This is going to sound really silly, me asking this question after working for over 6 months in ADF, but could anybody please give me some differences between backing bean scope and request scope. I've looked at the official Oracle documentation, and I'd be really grateful if anybody could please dumb it down a bit for me.-:)
Thanks,
Debojit

If you make a declarative component and put it on a page more than once.
Just like you can put multiple instances of the af:inputText component on a page, you can put multiple instances of declarative components on a page.

Similar Messages

Difference between booked items and requested items

Hi Gurus,
I wanted to understand the difference between
Booking History - booked items – booked date
Booking History – requested items –booked date
The Series definition has the same definition given in the hint. I checked one of the below links for the same topic but couldn't get a full view.
Which series go to Actual_quantity in Standrad collections
Can any one let me know what the difference between booked items and requested items is? As I understand in OM, we have no differentiation. Do let me know
Thanks
DNP

Hi
In normal circumstances, there is no difference between requested item vs. booked item. But if you're using Item Substitution, these could be different. For example, a customer may call to request item A but for multiple reasons it may be substituted by a different item (usually an upgrade with similar form, function etc).
Oracle APS supports this functionality out of box in order promising and ASCP where it can be done based on a pre-defined relationship based on availability etc.
Hope this answers your question, please feel free to let me know if I may help calrify further
Navneet Goel
Inspirage
[email protected]

Session scope and request scope

Hi,
I've a manage bean in session scope and within this bean I've a reference of another
object (class person) . My question is, do i have to register this class in my faces-config-xml and if yes which scope should it have? session or request?
Or it isn't necessary to register it?
thanks
class MymanageBean{
private Person myPerson;
}

helllo,
can someone tell me what the line in the preceding coed means?
<meta http-equiv="refresh" content="<%= session.getMaxInactiveInterval() %>;url=login.jsp">
-- session_expiry_test.jsp --
<%@page contentType="text/html"%>
<%@page pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
   "http://www.w3.org/TR/html4/loose.dtd">
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
        <title>JSP Page</title>
        <meta http-equiv="refresh" content="<%= session.getMaxInactiveInterval() %>;url=dummy_login.jsp">
    </head>
    <body>
    <h1>Welcome, dude with a session!</h1>
    Your session will expire in <%= session.getMaxInactiveInterval() %> seconds
    at which time your browser will be redirected to the login page and any
    and all unsaved changes will be lost.
    <br>
    Thank you for your cooperation!
    </body>
</html>

Difference of ViewObjectScope,RowSetScope and Row Scope

I am reading The uix help online and get a understanding problem(Business Components for Java Integration):
What is the Difference between ViewObjectScope,RowSetScope and Row Scope? And how to use RowSetScope and RowScope
<bc4j:appModuleScope name="alpha" >
<contents>
<bc4j:viewObjectScope name="beta" > <contents>
 ... <bc4j:rowSetScope name="gamma" > <contents>
...  ... <bc4j:rowScope name="delta" > <contents>
...  ... </contents>
</bc4j:rowScope>
</contents>
</bc4j:rowSetScope>
</contents>
</bc4j:viewObjectScope> </contents></bc4j:appModuleScope>

Hi Yong,
I think the best way to understand the different scopes is by example. Run the uiXML for Business Components "Complete uiXML Application" wizard to automatically generate uiXML pages bound to one or more ViewObjects. For example, you could generate Business Components for the EMP and DEPT sample tables, and then generate a uiXML Application for those Business Components.
At the top of each uiXML for Business Component's page you will see a registryDef section that defines what application module and view objects the page uses.
The UIX BC4J elements like textInput, choice, column, etc, all have an attrName attribute. Specifying this attribute will tell UIX to retrieve the data for this element from BC4J. However, an attribute name is not enough to uniquely identify where the data should come from. This is where the scopes come in. UIX figures out what application module, and view object, to look for the attrName by the heirarchy of scope elements surrounding the element on which attrName was used.
For example:
<bc4j:rootAppModuleScope name="EmpAppModule">
<contents>
<form name="TextInputform">
<contents>
<bc4j:viewObjectScope name="EmpView">
<contents>
<ui:stackLayout>
<contents>
<bc4j:textInput name="txt1"
attrName="Ename" />
</contents>
</ui:stackLayout>
</contents>
</bc4j:viewObjectScope>
</contents>
</form>
</contents>
</bc4j:rootAppModuleScope>
This code binds a text input to the value of the EName attribute of the current row of the EmpView view object in the EmpAppModule application module (where EmpView and EmpAppModule are defined in the registryDef section of the page).
The rowScope element defines the scope to be the row with the given name (if no such row is available, it is created with the default values given for each attribute).
The rowSetScope allows you to specify the name of a BC4J rowSet and a child "rowStamp" UIX element that will be rendered (stamped out) for each row in the rowSet.

Difference between conn.close() and conn=null;

Hi All,
Can anybody please let me know the difference between conn.close()
and conn=null;
where conn is reference to Connection.
Thanks and Regards
-sunjavadeveloper

Thanks for your response.
Is there any other good approach to close() & then
null the Obj. can u give us your opinion.
          finally
            try{
                     if(dbconn != null)     dbconn.close();
                     if(stmt != null) stmt.close();
                     if(rs != null) rs.close();
                     if(con != null) con.close();
            catch (Exception e)
                   logger.fatal(e.getMessage(),e);
throw new Exception ("Exception -- Vendor.java --
a -- authenticate -- " + e.getMessage() );
               dbconn = null;
               rs = null;
               stmt=null;
               con = null;
Putting the close() calls in finally block is good, but having them in individual try/catch blocks is better. That way you can still try to close the connection if closing the statement throws an exception.
I don't bother setting them to null. GC is smart enough to know that they've gone out of scope. I don't think it helps.
%

Difference between IVI driver and VXI PnP Driver

There are two type of Instrument Drivers for the same instrument, i.e. IVI Driver and VXI PnP Driver. I want to know what is really the difference between these two and on what conditions which one is better than other?
Thanks in Advance

Hi M.Jonathan,
both driver are a HW abstraction.
The IVI driver bases on the idea that a class of instruments (DMM, Scope, ...) support the same functionality. When changing an instrument you normaly have a different command set for these instruments. You have to modify your code. With the IVI layer, all instruments supports the same functions. The communication is done by IVI and driver layer.
In the description of the VXI PnP Driver. The VXI PnP is VISA based. The idea of VISA is having one API for all instrumentation buses. Based on VISA VXI PnP provides a pool of functions for instruments including GUIs.
'on what conditions which one is better than other' The first question should be: Is there a driver available. Any other reasons depend on the application.
Hope, this helps.
Philipp
AE | NI-Germany

What is difference between Shared ,Exclusive and Exclusive but not commulat

what is difference between Shared ,Exclusive and Exclusive but not commulative lock modes plese tell me

Lock objects are used to synchronize access to the same data by more than one program.
The lock mode controls whether several users can access data records at the same time. The lock mode can be assigned separately for each table in the lock object. When the lock is set, the corresponding lock entry is stored in the lock table of the system for each table.
There are three types of lock modes
1.Exclusive
2.Shared
3.Exclusive not cummulative
Exclusive lock: The locked data can only be displayed or edited by a single user. A request for another exclusive lock or for a shared lock is rejected.
Shared lock: More than one user can access the locked data at the same time in display mode. A request for another shared lock is accepted, even if it comes from another user. An exclusive lock is rejected.
Exclusive but not cumulative: Exclusive locks can be requested several times from the same transaction and are processed successively. In contrast, exclusive but not cumulative locks can be called only once from the same transaction. All other lock requests are rejected.
please go through these links:
http://help.sap.com/saphelp_nw04/helpdata/en/a2/3547360f2ea61fe10000009b38f839/frameset.htm
http://help.sap.com/saphelp_nw04/helpdata/en/af/22ab01dd0b11d1952000a0c929b3c3/frameset.htm
http://help.sap.com/saphelp_nw04/helpdata/en/cf/21eeb2446011d189700000e8322d00/frameset.htm
http://help.sap.com/saphelp_nw04/helpdata/en/cf/21eebf446011d189700000e8322d00/frameset.htm
http://help.sap.com/saphelp_nw04/helpdata/en/cf/21eed9446011d189700000e8322d00/frameset.htm
briefly :
You can lock the table or record by using following types of locking:
1) Exclusive (E) the locked data can only be displayed or modified by single user i.e the owner of the object. Access to other users is denied.
2) Shared (S) several users can access the same record simultaneously, but only in display mode and except the first one, who has asked for the data in update mode.
3) Exclusive not cumulating (X) it is similar to exclusive lock. It allows only a single user access. E can be called several times from the same transaction. In contrast, a lock type X can be called only once during the transaction. Any other call for this lock is rejected.
Activation of Lock Object
1) When you activate the lock object, the functions are automatically generated. And these are ENQUEUE-EZN and DEQUEUE-EZN. EZN is name of the lock object.
2) While ENQUEUE is used in program to set the code over the selected data depending upon the lock object arguments. DEQUEUE is used to release the lock.
Thanks
Seshu

What is the difference between jsp :include and server side include

what is the difference between jsp :include and server side include(request dispatcher include method)????
i understand that both request dispatcher include method and jsp:include take dynamic data,so when would one use request dispatcher include and when jsp:include.
Is the usage interchangeable?i believe jsp include is used only for jsp/html but include directive can be used to include servlets ,jsp and html....correct me if i m wrong and
do suggest if u hav ny other diff in this context...

The difference really is: in what format do you want your inclusions? If your environment has many Java developers and only a few designers that focus mainly on, say, Flash, that might push you more towards the server-side include() directive. Or, if you have a large set of pages that receive dynamic content that is displayed in a consistent fashion (such as a workflow header area on a page).
If, on the other hand, you have more web designers, there may be a greater desire to deal in markup rather than Java code. Java developers themselves might prefer to view markup (JSP) that more resembles the eventual output than something occuring in Java code.
Finally, there are considerations of tiering. While it is totally possible to (and I have previously) implement 'view classes' that render markup or generate layout templates, JSP's offer, IMO, a subtle, psychological advantage. By forcing a developer to work in a different format, markup versus Java source, the separation on view from controller and model becomes a bit easier. It is still possible to make mistakes, but if a developer at some point notices, "Wait, I'm in a JSP, should I be importing a java.sql class?", then the choice to use JSP includes has paid off in spades.
- Saish

The difference between SOAP adapter and WS adapter in PI 7.1

Hello all,
can anybody explain what is the main difference between SOAP adapter and WS adapter in PI 7.1?
I have checked this [link|http://help.sap.com/saphelp_nwpi71/helpdata/en/0d/5ab43b274a960de10000000a114084/frameset.htm]
but was not able to find the real difference.
Or better, what can I do with WS adapter I can't do with SOAP adapter? What are their advantages/disadvantages?
Thank you all, Igor.

In addition to RM, ws adapter also support other ws standard like SAML which is not available in SOAP adatper. Beside:
if your sender or receiver is SAP system, you can also monitor the message in the sender/receiver in addition to the PI box. This is a very good thing, because sometime the MONI in PI shows nothing wrong, but the MONI in your receiver will show you error message that's only related to the receiver system.
However, if you define ws sender CC, and your ws client doesn't support RM, you will have issue sending ws request.
And ws CC will generate ws runtime in PI box, if your configuration is wrong (like user name and password not correct), even if you correct it, the ws runtime sometime won't be regenated based on the correction. In this case you need to delete the ws CC/agreement, and re-create it with all correct information.
Beside make sure your basis team configured the PI system properly regarding ws. If not, you will have lot of pain to figure the problem which was my case.
Jayson

Hi I have the old photo shop elements 10 on my computer and want to update and was wondering what the differences between photoshop, lightroom and photoshop elements are? Also when I upgrade does it have to be with a monthly membership or can I just purch

Hi I have the old photo shop elements 10 on my computer and want to update and was wondering what the differences between photoshop, lightroom and photoshop elements are?
Also when I upgrade does it have to be with a monthly membership or can I just purchase the product out right like you use to be able?

You cannot "update" from what you have to any of the applications you mention. It will have to be a straight purchase or subscription at full price.
Photoshop is a professional level application that makes no apologies for its very long and steep learning curve.
Lightroom is all about volume, and very light editing.
The Photoshop Elements forum is at:
https://forums.adobe.com/community/photoshop_elements/content
Remember, you are not addressing Adobe here in the user forums. You are requesting help from volunteers users just like you who give their time free of charge. No one has any obligation to answer your questions.
I do not know where there is such a comparison table as you seek, but someone else might, or you can google.

What's the difference between transport route and transport layer

what's the difference between transport route and transport layer,Can somebody give me some explaination? thks in advance!

Hi,
Transport Layer in ABAP Workbench
    The Change and Transport System supports the distribution of development
    work on large projects across multiple SAP Systems.
    The packages in each development system are grouped into one transport
    layer.
    The transport layer determines whether objects are assigned to a local
    or transportable change request.
Use
    Each of your SAP development systems is assigned a transport layer as
    its standard transport layer. If you use Extended Transport Control, you
    can assign different standard transport layers to certain clients.
    You can define at the most one consolidation target for each SAP System
and transport layer.
When you create a package, it is assigned the standard transport layer
of the SAP System.
If you want to assign a different transport layer to a package, you
require the administration authorization for the Change and Transport
System.
The objects in a package automatically have the transport attributes
defined for the corresponding transport layer.
o   If a consolidation route originating in their SAP System is defined,
     then the objects are assigned to a transportable request, and
     transported into the consolidation target when it is released.
o   If a consolidation route is not defined, the objects are assigned to
     a local request, and are not transported.
Customizing settings are not assigned to a package. They have the
transport attributes of the standard transport layer of the system or
client.
It is best to assign a package a standard transport layer for which a
consolidation route originating in the development system is defined.
To display and maintain the transport layers and routes, use the
Transport Management System (transaction STMS).
Only the system adminstrator can make changes.
Caution:
     The tables TSYST, DEVL, TWSYS, TASYS are no longer productive as of
     Release 4.0A and cannot be maintained.
Regards
Ben

What is the exact difference between Purchse order and purchase requisition

Hi all,
What is the exact difference between Purchse order and purchase requisition.
Thx

Hi,
<b>Purchase Requisition</b>-> Staff in an orgn places Pur requisition for want of some goods/products - ME51
Related Table EBAN
Request for Quotation(RFQ)-> The Purchase dept in the orgn calls/requests for the quotation for the products against which PR was raised. - ME41
Vendor Evaluation->After receving the RFQ's, after comparison a Vendor is finalised based on the terms and conditions.
<b>Purchase Order(PO)</b>-> Pur order was issued to that vendor asking him to supply the goods/products -ME21N
Tables:EKKO,EKPO
Goods Receipt Note(GRN)->Vendor supplies the material/Products to the orgn-
MB01
Goods Issue (GI) -> People receives their respective itesm for which they have placed the Requisitions
Vendor, Material ,Qty are mandatory for PO.
Regards,
Padmam.

Difference between inner join and outer join

1.Difference between inner join and outer join
2.wht is the difference in using hide and get crusor value in interactive.
3. Using join is better or views in writting program . Which is better.

Table 1                      Table 2
A
B
C
D
D
E
F
G
H
a1
b1
c1
1
1
e1
f1
g1
h1
a2
b2
c2
1
3
e2
f2
g2
h2
a3
b3
c3
2
4
e3
f3
g3
h3
a4
b4
c4
3
|--|||--|
    Inner Join
    |--||||||||--|
    | A | B | C | D | D | E | F | G | H |
    |--||||||||--|
    | a1 | b1 | c1 | 1 | 1 | e1 | f1 | g1 | h1 |
    | a2 | b2 | c2 | 1 | 1 | e1 | f1 | g1 | h1 |
    | a4 | b4 | c4 | 3 | 3 | e2 | f2 | g2 | h2 |
    |--||||||||--|
Example
Output a list of all flights from Frankfurt to New York between September 10th and 20th, 2001 that are not sold out:
DATA: DATE   LIKE SFLIGHT-FLDATE,
      CARRID LIKE SFLIGHT-CARRID,
      CONNID LIKE SFLIGHT-CONNID.
SELECT FCARRID FCONNID F~FLDATE
    INTO (CARRID, CONNID, DATE)
    FROM SFLIGHT AS F INNER JOIN SPFLI AS P
           ON FCARRID = PCARRID AND
              FCONNID = PCONNID
    WHERE P~CITYFROM = 'FRANKFURT'
      AND P~CITYTO   = 'NEW YORK'
      AND F~FLDATE BETWEEN '20010910' AND '20010920'
      AND FSEATSOCC < FSEATSMAX.
WRITE: / DATE, CARRID, CONNID.
ENDSELECT.
If there are columns with the same name in both tables, you must distinguish between them by prefixing the field descriptor with the table name or a table alias.
Note
In order to determine the result of a SELECT command where the FROM clause contains a join, the database system first creates a temporary table containing the lines that meet the ON condition. The WHERE condition is then applied to the temporary table. It does not matter in an inner join whether the condition is in the ON or WHEREclause. The following example returns the same solution as the previous one.
Example
Output of a list of all flights from Frankfurt to New York between September 10th and 20th, 2001 that are not sold out:
DATA: DATE   LIKE SFLIGHT-FLDATE,
      CARRID LIKE SFLIGHT-CARRID,
      CONNID LIKE SFLIGHT-CONNID.
SELECT FCARRID FCONNID F~FLDATE
    INTO (CARRID, CONNID, DATE)
    FROM SFLIGHT AS F INNER JOIN SPFLI AS P
           ON FCARRID = PCARRID
    WHERE FCONNID = PCONNID
      AND P~CITYFROM = 'FRANKFURT'
      AND P~CITYTO   = 'NEW YORK'
      AND F~FLDATE BETWEEN '20010910' AND '20010920'
      AND FSEATSOCC < FSEATSMAX.
WRITE: / DATE, CARRID, CONNID.
ENDSELECT.
Note
Since not all of the database systems supported by SAP use the standard syntax for ON conditions, the syntax has been restricted. It only allows those joins that produce the same results on all of the supported database systems:
Only a table or view may appear to the right of the JOIN operator, not another join expression.
Only AND is possible in the ON condition as a logical operator.
Each comparison in the ON condition must contain a field from the right-hand table.
If an outer join occurs in the FROM clause, all the ON conditions must contain at least one "real" JOIN condition (a condition that contains a field from tabref1 amd a field from tabref2.
Note
In some cases, '*' may be specified in the SELECT clause, and an internal table or work area is entered into the INTO clause (instead of a list of fields). If so, the fields are written to the target area from left to right in the order in which the tables appear in the FROM clause, according to the structure of each table work area. There can then be gaps between table work areas if you use an Alignment Request. For this reason, you should define the target work area with reference to the types of the database tables, not simply by counting the total number of fields. For an example, see below:
Variant 3
... FROM tabref1 LEFT [OUTER] JOIN tabref2 ON cond
Effect
Selects the data from the transparent database tables and/or views specified in tabref1 and tabref2. tabref1 und tabref2 both have either the same form as in variant 1 or are themselves join expressions. The keyword OUTER can be omitted. The database tables or views specified in tabref1 and tabref2 must be recognized by the ABAP-Dictionary.
In order to determine the result of a SELECT command where the FROM clause contains a left outer join, the database system creates a temporary table containing the lines that meet the ON condition. The remaining fields from the left-hand table (tabref1) are then added to this table, and their corresponding fields from the right-hand table are filled with ZERO values. The system then applies the WHERE condition to the table.
Left outer join between table 1 and table 2 where column D in both tables set the join condition:
Table 1                      Table 2
A
B
C
D
D
E
F
G
H
a1
b1
c1
1
1
e1
f1
g1
h1
a2
b2
c2
1
3
e2
f2
g2
h2
a3
b3
c3
2
4
e3
f3
g3
h3
a4
b4
c4
3
|--|||--|
    Left Outer Join
    |--||||||||--|
    | A | B | C | D | D | E | F | G | H |
    |--||||||||--|
    | a1 | b1 | c1 | 1 | 1 | e1 | f1 | g1 | h1 |
    | a2 | b2 | c2 | 1 | 1 | e1 | f1 | g1 | h1 |
    | a3 | b3 | c3 | 2 |NULL|NULL|NULL|NULL|NULL|
    | a4 | b4 | c4 | 3 | 3 | e2 | f2 | g2 | h2 |
    |--||||||||--|
Regards
Prabhu

Difference between interface pool and class pool

Hi,
Can any body tell me the difference between Interface pool and Class pool.
thank you in advance.
regards

Hi,
Class and Interface Pools
This section discusses the structure and special features of class and interface pools for global classes.
Global Classes and Interfaces
Classes and interfaces are object types. You can define them either globally in the Repository or locally in an ABAP program. If you define classes and interfaces globally, special ABAP programs called class pools or interface pools of type K or J serve as containers for the respective classes and interfaces. Each class or interface pool contains the definition of a single class or interface. The programs are automatically generated by the Class Builder when you create a class or interface.
A class pool is comparable to a module pool or function group. It contains both declarative and executable ABAP statements, but cannot be started on its own. The runtime system can create runtime instances (objects) through a request using the CREATE OBJECT statement. These objects execute the statements of the class pool.
Interface pools do not contain any executable statements. Instead, they are used as containers for interface definitions. When you implement an interface in a class, the interface definition is implicitly included in the class definition.
Structure of a Class Pool
Class pools are structured as follows:
Class pools contain a definition part for type declarations, and the declaration and implementation parts of the class.
Differences From Other ABAP Programs
Class pools are different from other ABAP programs for the following reasons:
·        ABAP programs such as executable programs, module pools, or function modules, usually have a declaration part in which the global data for the program is defined. This data is visible in all of the processing blocks in the program. Class pools, on the other hand, have a definition part in which you can define data and object types, but no data objects or field symbols. The types that you define in a class pool are only visible in the implementation part of the global class.
·        The only processing blocks that you can use are the declaration part and implementation part of the global class. The implementation part may only implement the methods declared in the global class. You cannot use any of the other ABAP processing blocks (dialog modules, event blocks, subroutines, function modules).
·        The processing blocks of class pools are not controlled by the ABAP runtime environment. No events occur, and you cannot call any dialog modules or procedures. Class pools serve exclusively for class programming. You can only access the data and functions of a class using its interface.
·        Since events and dialog modules are not permitted in classes, you cannot process screens in classes. You cannot program lists and selection screens in classes, since they cannot react to the appropriate events. It is intended to make screens available in classes. Instead of dialog modules, it will be possible to call methods of the class from the screen flow logic.
Local Classes in Class Pools
The classes and interfaces that you define in the definition part of a class pool are not visible externally. Within the class pool, they have a similar function to local classes and interfaces in other ABAP programs. Local classes can only be instantiated in the methods of the global class. Since subroutines are not allowed in class pools, local classes are the only possible modularization unit in global classes. Local classes have roughly the same function for global classes as subroutines in function groups, but with the significant exception that they are not visible externally
Reward points if useful....
Regards
AK

Matrix to find differences between OIM11g R1 and R2

Friends,
We are 50% completed developing OIM 11gR1. But now, R2 came out.
I would like to know the main differences between OIM 11gR1 and OIM 11gR2 so that I can convince my client to go for R2 rather than R1.
If there is any matrix which will show these differences, please let me let me know.
I would like to know the differences for the below.
1) Business wise
2) Technical development
3) End user stand point

1) Business wise
R2 is much more business friendly. It's structure is now simple and more secure than that of 11Gr1. Each and everything is request based. Shopping cart functionalities has beedn added. So manual provisioning is possible for multiple user for multiple resources at a single time.
2) Technical development
Most of things are simpleified for development as well. Few differences could be, we don't have seperate process and object form, same form is references everywhere. Template level approvals are not there. All requests are routed through SOA. You need to have skills on SOA as well.
3) End user stand point
We have two consoles now. End user can work on identity console where as admins can work on sysadmin console. Structure is seperated for both kind of users. Also UI is less heavy than that of 11Gr1.
You can ask Oracle for proper document on it.
regards,
GP

Difference Between BackingBean Scope and Request Scope in Manged Beans

Similar Messages

Maybe you are looking for