Difference between BI beans and Oracle Discoverer

My understanding is that
BI beans and Discoverer are used for displaying data in tables, crosstab reports and graphs, Discoverer is meant for end users and BI beans is meant for use within a Java application.
Please let me know if my understanding is correct.

Hi
You are quite right.
If put in simple language Disc. Reports are just the outcomes of the Repotiing Tool and BIBeans is just a
component that can be used through Jdeveloper that
allows us to create various reports on the OLAP database objects.
Happy Working.

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Please post sample for both beans.

Hi,
managed beans and backing beans are quite the same in that the Java object is managed by the JavaServer Faces framework. Manage in this respect means instantiation. The difference is that backing beans contain component "binding" references, which managed beans usually don't. Do backing beans are page specific versions of managed beans.
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Edited by: Frank Nimphius on Jan 31, 2011 8:49 AM

Question about main difference between Java bean and Java class in JSP

Hi All,
I am new to Java Bean and wonder what is the main difference to use a Bean or an Object in the jsp. I have search on the forum and find some post also asking the question but still answer my doubt. Indeed, what is the real advantage of using bean in jsp.
Let me give an example to illustrate my question:
<code>
<%@ page errorPage="errorpage.jsp" %>
<%@ page import="ShoppingCart" %>

<jsp:useBean id="cart" scope="session" class="ShoppingCart" />
<html>
<head><title>Shopping Cart</title></head>
<body bgcolor="#FFFFFF">
Your cart's ID is: <%=cart.getId()%>.
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<html>
</code>
In the above code, I can also create a object of ShoppingCart by new operator then get the id at the following way.
<code>
<%
ShoppingCart cart = new ShoppingCart();
out.println(cart.getId());
%>
</code>
Now my question is what is the difference between the two method? As in my mind, a normal class can also have it setter and getter methods for its properties. But someone may say that, there is a scope="session", which can be declared in an normal object. It may be a point but it can be easily solved but putting the object in session by "session.setAttribute("cart", cart)".
I have been searching on this issue on the internet for a long time and most of them just say someting like "persistance of state", "bean follow some conventions of naming", "bean must implement ser" and so on. All of above can be solved by other means, for example, a normal class can also follow the convention. I am really get confused with it, and really want to know what is the main point(s) of using the java bean.
Any help will be highly apprecaited. Thanks!!!
Best Regards,
Alex

Hi All,
I am new to Java Bean and wonder what is the main
difference to use a Bean or an Object in the jsp. The first thing to realize is that JavaBeans are just Plain Old Java Objects (POJOs) that follow a specific set of semantics (get/set methods, etc...). So what is the difference between a Bean and an Object? Nothing.
<jsp:useBean id="cart" scope="session" class="ShoppingCart" />
In the above code, I can also create a object of
ShoppingCart by new operator then get the id at the
following way.
ShoppingCart cart = new ShoppingCart();
out.println(cart.getId());
...Sure you could. And if the Cart was in a package (it has to be) you also need to put an import statement in. Oh, and to make sure the object is accessable in the same scope, you have to put it into the PageContext scope. And to totally equal, you first check to see if that object already exists in scope. So to get the equivalant of this:
<jsp:useBean id="cart" class="my.pack.ShoppingCart"/>Then your scriptlet looks like this:
<%@ page import="my.pack.ShoppingCart %>
<%
ShoppingCart cart = pageContext.getAttribute("cart");
if (cart == null) {
 cart = new ShoppingCart();
 pageContext.setAttribute("cart", cart);
%>So it is a lot more work.
As in my mind, a normal class can also
have it setter and getter methods for its properties.True ... See below.
But someone may say that, there is a scope="session",
which can be declared in an normal object.As long as the object is serializeable, yes.
It may be
a point but it can be easily solved but putting the
object in session by "session.setAttribute("cart",
cart)".Possible, but if the object isn't serializable it can be unsafe. As the point I mentioned above, the useBean tag allows you to check if the bean exists already, and use that, or make a new one if it does not yet exist in one line. A lot easier than the code you need to use otherwise.
I have been searching on this issue on the internet
for a long time and most of them just say someting
like "persistance of state", "bean follow some
conventions of naming", "bean must implement ser" and
so on. Right, that would go along the lines of the definition of what a JavaBean is.
All of above can be solved by other means, for
example, a normal class can also follow the
convention. And if it does - then it is a JavaBean! A JavaBean is any Object whose class definition would include all of the following:
1) A public, no-argument constructor
2) Implements Serializeable
3) Properties are revealed through public mutator methods (void return type, start with 'set' have a single Object parameter list) and public accessor methods (Object return type, void parameter list, begin with 'get').
4) Contain any necessary event handling methods. Depending on the purpose of the bean, you may include event handlers for when the properties change.
I am really get confused with it, and
really want to know what is the main point(s) of
using the java bean.JavaBeans are normal objects that follow these conventions. Because they do, then you can access them through simplified means. For example, One way of having an object in session that contains data I want to print our might be:
<%@ page import="my.pack.ShoppingCart %>
<%
ShoppingCart cart = session.getAttribute("cart");
if (cart == null) {
 cart = new ShoppingCart();
 session.setAttribute("cart", cart);
%>Then later where I want to print a total:
<% out.print(cart.getTotal() %>Or, if the cart is a JavaBean I could do this:
<jsp:useBean id="cart" class="my.pack.ShoppingCart" scope="session"/>
Then later on:
<jsp:getProperty name="cart" property="total"/>
Or perhaps I want to set some properties on the object that I get off of the URL's parameter group. I could do this:
<%
ShoppingCart cart = session.getAttribute("cart");
if (cart == null) {
 cart = new ShoppingCart();
 cart.setCreditCard(request.getParameter("creditCard"));
 cart.setFirstName(request.getParameter("firstName"));
 cart.setLastName(request.getParameter("lastName"));
 cart.setBillingAddress1(request.getParameter("billingAddress1"));
 cart.setBillingAddress2(request.getParameter("billingAddress2"));
 cart.setZipCode(request.getParameter("zipCode"));
 cart.setRegion(request.getParameter("region"));
 cart.setCountry(request.getParameter("country"));
 pageContext.setAttribute("cart", cart);
 session.setAttribute("cart", cart);
}Or you could use:
<jsp:useBean id="cart" class="my.pack.ShoppingCart" scope="session">
<jsp:setProperty name="cart" property="*"/>
</jsp:useBean>The second seems easier to me.
It also allows you to use your objects in more varied cases - for example, JSTL (the standard tag libraries) and EL (expression language) only work with JavaBeans (objects that follow the JavaBeans conventions) because they expect objects to have the no-arg constuctor, and properties accessed/changed via getXXX and setXXX methods.
>
Any help will be highly apprecaited. Thanks!!!
Best Regards,
Alex

What are major differences between SAP BI and Oracle BI?

Hi Experts,
I am new to Oracle BI. But I want to know about major differences between SAP BI and Oracle BI?.
Please help me....
Thanks & Regards,
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S P O r c l e
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from emp e
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Difference between BI Beans and olap api

HI
is there anyone can tell me the difference between
BI and olap api ,
is BI a language or components ,why
when i build crosstab with BI beans it uses classes
different from olap pi classes (oracle.dss.*)
and olap api (oracle.express.*)
so BI is another language independent of olap api
or it uses olap api to connect to OLAP
BI works , OLAP api doesn't work
thanks

Hi,
This is a great question. The OLAP API is an Oracle published Java API for access to Oracle OLAP. This exposes the OLAP cube/dimension model via Java. The OLAP API documentation can be found on the OLAP secion of OTN, see the link on the BI Beans section of OTN. Within the documention section there is a link to the acle9i OLAP Release 2 - Developer's Guide to the OLAP API:
http://otn.oracle.com/products/bi/pdf/OLAPIguide.pdf
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- OLAP beans
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This is explained in more detail in the Oracle BI Beans Technical Whitepaper:
http://otn.oracle.com/products/bib/htdocs/collateral/bi_beans_white_paper.pdf
Hope this helps
Business Intelligence Beans Product Management Team
Oracle Corporation

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Hello,
I know a Java Bean is just a java object. But also a general class instance is also a java object. So can you tell me difference between a java bean and a general class instance? Or are the two just the same?
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http://en.wikipedia.org/wiki/POJO
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Thanks,
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Christophe Warland wrote:
I am trying to understand the various ways and technical differences to
connect to an Oracle database from WLS 6.1. As far as I can tell, here
is the list of drivers:
THIN:
1. the bundled, old Oracle thin driver in weblogic.jar
2. the latest Oracle thin driver to prepend to my classpath
OCI:
3. the bundled, old Oracle OCI driver in weblogic.jar
(+ matching Oracle DLL in PATH)
4. the latest Oracle OCI driver to prepend to my classpath
(+ latest Oracle DLL in PATH)
5. Weblogic's own OCI driver in weblogic.jar
(+ WebLogic's own DLL in PATH)
I understand that (1) and (3) are 'obsolete'. But what about the others?
Especially, what are the advantages of (5) over (4) or (2) ?
Can Joe^H^H^H anybody share some light on this? ;-)
Thanks,
Christophe

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null

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null

Difference between BI beans and Oracle Discoverer

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