Java Bean Design

Hello All,
My problem is.. i have a JSP page in which i have a set of JobID, trainId and Crew.
I can have a multiple rows of jobid, trainid and crew as shown below.
I have to design a java bean for this JSP. One way is to have a get and set methods of all the fields of the JSP. But if i go with this approach there will be so many get and set methods defined for the same type of JobID.
Is it possible to make a object for each row.
if yes then please let me know how to go about it.
JobID TrainId Crew pickup dropOff
JobIDOne TrainIdOne CrewOne pickupOne dropOffOne
please help me out....
thanks and regards,
rajesh

you can look as this set of JobID, trainId and Crew as table's content
so you needn't write all of set and get method
just use table's api to operate.wish that's do it

Similar Messages

Database access design using java bean

Hi,
I am writing a JSP/servlet/Javabean based app. using MVC architecture.The database related logic is in java beans.
I want a generalized class/bean that can form a connection , execute the passed query and return the results.Does any one has any URLs or sample code to explain how to do this using introspection?
I would greatly appreciate any help as this design is very crucial for our application.
Thanks -
k

Please check the Cameleon Open Source project at http://www.must.de/cameleon.html if ti fits your needs.

Diffrence b/w Deploy Time & Design time in Java bean model

Hi all,
I have craeted a model using java bean.
create model->import java bean model->Add JAR->browse the jar.
There i have got two Radio Buttons
Design Time
Deploy Time
I have worked with this two i have not observed any difference.
Can anyone give me some idea about this.If possible with an example to?
Thanks & Regards,
Lokesh.

HI Lokesh,
The basic difference between design time and deploy time is. design time jars are only used when building your aplication and considered to be present already on server. and at runtime application refer to it..
while if you keep deploy time, then the application itself keeps that jar file with him and at runtime it refers to it.
i.e. application deploy that jar file on server.
When you run an application, application need all its dependencied to be present in webdynpro container of server.
your javabean model needs those jar files at server. so when you chose deploy time. it personly deploy that file on server.
Iif you keep it as design time then. then you will be able to build it.
but if those jar files are not present at the server then your application will not get deployed.
e.g.
let A & B are your two applications and they need xx.jar file of a EJB which is created by you to create a javabean model.
now as this xx.jar file is not present at server.
1. when you create model for A. Keep it as deploy time.
as application A deploy that xx.jar file on server. B can refer it directly
2._when you create model for B keep it as design time._

What is the difference between java direct or java bean in JSP?

What is the difference if I use java code directly in JSP or use java bean in JSP?
Which class to use for receiving the passed parameter from html or java script? Any difference for java code and java bean in the way receiving the passed data?
How can I pass string from jsp to html or java script?

it's generally accepted as better design to separate presentation from logic. meaning, the java code in the jsp should be used to support displaying data, as oppsoed to implementing the application - like database access, etc.
when the logic is separated from the presentation, it allows you to reuse logic components within several jsp pages.
if you decide to change the presentation layer in the future (to support wap, for example) you don't need to rewrite your entire application, since the "guts" of the application is outside of the jsps.
it is also a good idea to separate your business logic from your data layer. adding a "buffer zone" between these layers helps in the same manner as in separating presentation from logic. if you're using flat files for storage now, upgrading to a database wouldn't require rewriting all your business logic, just the methods which write out the data to a file, for example.
once you feel comfortable with separating the various layers, check out the struts framework at http://jakarta.apache.org/
to answer your second question, to get parameters passed in from HTML forms, use ServletRequet's getParameter() method.
in tomcat:
<% String lastName = request.getParameter( "lastname" ); %>
to answer your third question: when displaying the HTML from withing a jsp, print out the string to a javascript variable or a hidden form element:
<% String firstName = "mike"; %>
<input type="hidden" name="firstname" value="<%= firstName %>">
<script language="javascript1.2">
var firstName = "<%= firstName %>";
</script>
this jsp results in the following html:
<input type="hidden" name="firstname" value="mike">
<script language="javascript1.2">
var firstName = "mike";
</script>

Problem with java beans and jsp on web logic 6.0 sp1

          HI ,
          I am using weblogic6.0 sp1.
          i have problem with jsp and java beans.
          i am using very simple java bean which stores name and email
          from a html form.
          but i am getting following errors:
          Full compiler error(s):
          D:\bea4\wlserver6.0sp1\config\mydomain\applications\DefaultWebApp_myserver\WEB-INF\_tmp_war_myserver_myserver_DefaultWebApp_myserver\jsp_servlet\_savename2.java:89:
          cannot resolve symbol
          symbol : class userbn
          location: class jsp_servlet._savename2
          userbn ud = (userbn) //[ /SaveName2.jsp; Line: 7]
          ^
          D:\bea4\wlserver6.0sp1\config\mydomain\applications\DefaultWebApp_myserver\WEB-INF\_tmp_war_myserver_myserver_DefaultWebApp_myserver\jsp_servlet\_savename2.java:89:
          cannot resolve symbol
          symbol : class userbn
          location: class jsp_servlet._savename2
          userbn ud = (userbn) //[ /SaveName2.jsp; Line: 7]
          ^
          D:\bea4\wlserver6.0sp1\config\mydomain\applications\DefaultWebApp_myserver\WEB-INF\_tmp_war_myserver_myserver_DefaultWebApp_myserver\jsp_servlet\_savename2.java:94:
          cannot resolve symbol
          symbol : class userbn
          location: class jsp_servlet._savename2
          ud = (userbn) java.beans.Beans.instantiate(getClass().getClassLoader(),
          "userbn"); //[ /SaveName2.jsp; Line: 7]
          ^
          3 errors
          in which directory should i place java bean source file(.java file)
          here is my jsp file:
          <%@ page language = "java" contentType = "text/html" %>
          <html>
          <head>
          <title>bean2</title>
          </head>
          <body>
          <jsp:usebean id = "ud" class = "userbn" >
          <jsp:setProperty name = "ud" property = "*" />
          </jsp:usebean>
          <ul>
          <li> name: <jsp:getProperty name = "ud" property = "name" />
          <li> email : <jsp:getProperty name = "ud" property = "email" />
          </ul>
          </body>
          <html>
          here is my bean :
          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          import java.io.*;
          public class userbn implements Serializable
               private String name ;
               private String email;
               public void setName(String n)
                    name = n;
               public void setEmail(String e)
                    email = e;
               public String getName()
                    return name;
               public String getEmail()
                    return email;
               public userbn(){}
          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          pls help me.
          Thanks
          sravana.


          You realy can do it like Xiang says, but the better way is to use packages. That's
          the way BEA is designed for. If you use packages you can but your bean classes
          in every subfolder beneath Classes. Here for example we have the subfolders test
          and beans:
          You have to declare the package on top of your Bean Source Code:
          package test.beans;
          In your JSP you don't need the import code of Xiang. You only have to refer the
          path of your bean class:
          <jsp:useBean id="testBean" scope="session" class="test.beans.TestBean" />
          There are some other AppServers that only can deploy Java Beans in packages. So
          if you use packages you are always on the right side.
          ciao bernd
          "sravana" <[email protected]> wrote:
          >
          >Thank you very much Xiang Rao, It worked fine.
          >Thanks again
          >sravana.
          >
          >"Xiang Rao" <[email protected]> wrote:
          >>
          >><%@ page import="userbn" language = "java" contentType = "text/html"
          >>%> should
          >>work for you.
          >>
          >>
          >>"sravana" <[email protected]> wrote:
          >>>
          >>>HI ,
          >>>
          >>>I am using weblogic6.0 sp1.
          >>>
          >>>i have problem with jsp and java beans.
          >>>
          >>>i am using very simple java bean which stores name and email
          >>>
          >>>from a html form.
          >>>
          >>>but i am getting following errors:
          >>>
          >>>________________________________________________________________
          >>>
          >>>Full compiler error(s):
          >>>D:\bea4\wlserver6.0sp1\config\mydomain\applications\DefaultWebApp_myserver\WEB-INF\_tmp_war_myserver_myserver_DefaultWebApp_myserver\jsp_servlet\_savename2.java:89:
          >>>cannot resolve symbol
          >>>symbol : class userbn
          >>>location: class jsp_servlet._savename2
          >>> userbn ud = (userbn) //[ /SaveName2.jsp; Line: 7]
          >>> ^
          >>>D:\bea4\wlserver6.0sp1\config\mydomain\applications\DefaultWebApp_myserver\WEB-INF\_tmp_war_myserver_myserver_DefaultWebApp_myserver\jsp_servlet\_savename2.java:89:
          >>>cannot resolve symbol
          >>>symbol : class userbn
          >>>location: class jsp_servlet._savename2
          >>> userbn ud = (userbn) //[ /SaveName2.jsp; Line: 7]
          >>> ^
          >>>D:\bea4\wlserver6.0sp1\config\mydomain\applications\DefaultWebApp_myserver\WEB-INF\_tmp_war_myserver_myserver_DefaultWebApp_myserver\jsp_servlet\_savename2.java:94:
          >>>cannot resolve symbol
          >>>symbol : class userbn
          >>>location: class jsp_servlet._savename2
          >>> ud = (userbn) java.beans.Beans.instantiate(getClass().getClassLoader(),
          >>>"userbn"); //[ /SaveName2.jsp; Line: 7]
          >>> ^
          >>>3 errors
          >>>
          >>>____________________________________________________________
          >>>
          >>>in which directory should i place java bean source file(.java file)
          >>>
          >>>here is my jsp file:
          >>>--------------------------------------------------------
          >>>
          >>><%@ page language = "java" contentType = "text/html" %>
          >>><html>
          >>><head>
          >>><title>bean2</title>
          >>></head>
          >>><body>
          >>><jsp:usebean id = "ud" class = "userbn" >
          >>><jsp:setProperty name = "ud" property = "*" />
          >>></jsp:usebean>
          >>><ul>
          >>><li> name: <jsp:getProperty name = "ud" property = "name" />
          >>><li> email : <jsp:getProperty name = "ud" property = "email" />
          >>></ul>
          >>></body>
          >>><html>
          >>>
          >>>-------------------------------------------------------------
          >>>
          >>>here is my bean :
          >>>
          >>>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          >>>
          >>>import java.io.*;
          >>>
          >>>public class userbn implements Serializable
          >>>{
          >>>
          >>>     private String name ;
          >>>
          >>>     private String email;
          >>>
          >>>     public void setName(String n)
          >>>     {
          >>>
          >>>          name = n;
          >>>     }
          >>>
          >>>     public void setEmail(String e)
          >>>     {
          >>>
          >>>          email = e;
          >>>     }
          >>>
          >>>     public String getName()
          >>>     {
          >>>
          >>>          return name;
          >>>     }
          >>>
          >>>     public String getEmail()
          >>>     {
          >>>
          >>>          return email;
          >>>     }
          >>>
          >>>     public userbn(){}
          >>>}
          >>>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          >>>
          >>>pls help me.
          >>>Thanks
          >>>sravana.
          >>>
          >>
          >

Java Bean does not display in Forms 9i

Hi,
I created a Java bean taht would not display in a Forms 9i application. I do not get any error messages, just nothing seem to happen. I did the following:
1. Created a Java Bean with az Init() public function, packed it into a jar file and put it into <9iASHome>\forms90\java
2. Added the jar file to the formsweb.cfg file's archive_jini.
3. Created a Form with a Java Bean item on a canvas.
4. Set the implementation property of the bean item to the full java 'direcotry' path of the class.
5. Created the WHEN-NEW-FORM-INSTANCE trigger and put this code into it:
fbean.register_bean('BLOCK3.BEAN_AREA4',1,'geoifsweb.ifsframe');
After deploying the form to 9iAS and running it nothing seems to happen, only the place of the Java Bean appears on the Form. Teh Java Bean class extend a JFrame class, so I would expect it to appear on the screen.
What am I missing? Thank you for any help or hint in advance.
Regards,
Tamas Szecsy

Tamas
When using fbean.register_bean you don't need to set the implementation class of the bean at design time.
You must however supply the full package and class name in the register_bean call.
Do you get any exceptions in the Java console?
I'd also switch logging on (see FBEAN.Set_Logging_Mode)

Help with Login Form (JSP DB Java Beans Session Tracking)

Hi, I need some help with my login form.
The design of my authetication system is as follows.
1. Login.jsp sends login details to validation.jsp.
2. Validation.jsp queries a DB against the parameters received.
3. If the query result is good, I retrieve some information (login id, name, etc.) from the DB and store it into a Java Bean.
4. The bean itself is referenced with the current session.
5. Once all that's done, validation.jsp forwards to main.jsp.
6. As a means to maintain state, I prefer to use url encoding instead of cookies for obvious reasons.I need some help from step 3 onwards please! Some code snippets will do as well!
If you think this approach is not a good practice, pls let me know and advice on better practices!
Thanks a lot!

Alright,here is an example for you.
Assume a case where you don't want to give access to any JSP View/HTML Page/Servlet/Backing Bean unless user logging system and let assume you are creating a View Object with the name.
checkout an example (Assuming the filter is being applied to a pattern * which means when a resource is been accessed by webapplication using APP_URL the filter would be called)
public doFilter(ServletRequest req,ServletResponse res,FilterChain chain){
     if(req instanceof HttpServletRequest){
            HttpServletRequest request = (HttpServletRequest) req;
            HttpSession session = request.getSession();
            String username = request.getParameter("username");
            String password = request.getParameter("password");
            String method = request.getMethod();
            String auth_type = request.getAuthType();
            if(session.getAttribute("useInfoBean") != null)
                request.getRequestDispatcher("/dashBoard").forward(req,res);
            else{
                    if(username != null && password != null && method.equaIsgnoreCase("POST") && (auth_type.equalsIgnoreCase("FORM_AUTH") || auth_type.equalsIgnoreCase("CLIENT_CERT_AUTH")) )
                         chain.doFilter(req,res);
                    else
                      request.getRequestDispatcher("/Login.jsp").forward(req,res);
}If carefully look at the code the autherization is given only if either user is already logged in or making an attempt to login in secured way.
to know more insights about where these can used and how these can be used and how ?? the below links might help you.
http://javaboutique.internet.com/tutorials/Servlet_Filters/
http://e-docs.bea.com/wls/docs92/dvspisec/servlet.html
http://livedocs.adobe.com/jrun/4/Programmers_Guide/filters3.htm
http://www.javaworld.com/javaworld/jw-06-2001/jw-0622-filters.html
http://www.servlets.com/soapbox/filters.html
http://www.onjava.com/pub/a/onjava/2001/05/10/servlet_filters.html
and coming back to DAO Pattern hope the below link might help you.
http://java.sun.com/blueprints/corej2eepatterns/Patterns/DataAccessObject.html
http://java.sun.com/blueprints/patterns/DAO.html
http://www.javapractices.com/Topic66.cjp
http://www.ibm.com/developerworks/java/library/j-dao/
http://www.javaworld.com/javaworld/jw-03-2002/jw-0301-dao.html
On the whole(:D) it is always a good practice to get back to Core Java/J2EE Patterns.and know answers to the question Why are they used & How do i implement them and where do i use it ??
http://www.fluffycat.com/java-design-patterns/
http://java.sun.com/blueprints/corej2eepatterns/Patterns/index.html
http://www.cmcrossroads.com/bradapp/javapats.html
Hope that might help :)
REGARDS,
RaHuL

How i can run java bean

i want to run java bean at bean area. i write a simple bean and what i will write on oracle forms builder bean area property palette implementation class. i make bean a jar file and i put it same folder with form file.
thanks for your helps

Hello,
I did not see any error mentioned in your initial post...
So, what is the error ?
If the jar file is not in your registry, you could have the design time error (bean not found), but is the bean runs ok at runtime ?
Francois

Crystal report Java Beans Connectivity

Hi
My name is Bach Ong. I.m currently migrating Crystal reports 10 to Crystal reports 2008 using Java Beans Connectivity. Using ResultSet as dataset. all results are return alright, EXCEPT for string type fields. The data for STRING type fields are some how suppressed. But if i executed the beans within eclipse the the string field is populated with data.
can someone assist me with this issue.
Thanks
Bach Ong

Some suggestions I would give for this are:
1. It may be a fault with the data itself. Specifically, if you have a string field that contains invalid or null data (Instead of an empty string), it may be causing an error to be thrown when the report engine tries to process the string fields - and it thus fails on all string fields.
So please try this with some data where all fields contain valid non-null, non-empty data and see if it works.
2. One of the difficulties with javabeans is that they don't give proper error messages. However, there is a way to kick off the javabean java process in the crystal report designer which allows you to debug your javabean inside the report designer. I have attached a sample that shows how to do that - and that should get you the real error message of what is going wrong.
Note: Due to the way these forums work - it will only let me attach a file if it is named with the .txt extension. You will need to extract the txt file and then rename it to .zip (annoying I know).
Shawn

Java bean for database access

Hi,
I am writing a JSP/servlet/Javabean based app. using MVC architecture.The database related logic is in java beans.
I want a generalized class/bean that can form a connection , execute the passed query and return the results.Does any one has any URLs or sample code to explain how to do this using introspection?
I would greatly appreciate any help as this design is very crucial for our application.
Thanks -
k

i don't think it need help,every book has such code,maybe i haven't understanding your meaning correctly,follow steps:
1 create a class named DBconnect,
2 in the constructor of the class,you create the connection,
3 add several methods that execute the operation into your class ,such as :executeQuery(),executeUpdare().....
that depands the requirement of your project.

URGENT! Java Bean Query

I am using Tomcat 3.1 and MySQL database for an application I am designing. Below is the code for a java bean that registers users details. The code compiles correctly, but I would like to know if there is any code that I might have left out? What changes should I make to make it more user friendly?
I do not want to use servlets, as they are very difficult to setup.
REGISTRATION.JAVA
package gcd;
import java.sql.*;
import java.util.*;
import java.lang.*;
import java.awt.*;
import java.text.*;
import java.io.*;
import com.mysql.jdbc.*;
public class Registration
     public Registration(){}
String first_name;
String last_name;
String role;
String email;
String error;
java.sql.Connection con;
public void setFirstName( String value )
first_name = value;
public void setLastName( String value )
last_name = value;
public void setRole( String value )
role = value;
public void setEmail( String value )
email = value;
public String getFirstName()
return first_name;
public String getLastName()
     return last_name;
public String getRole()
     return role;
public String getEmail()
     return email;
     public void connect() throws ClassNotFoundException, SQLException, Exception
try
System.setProperty("jdbc.drivers", "com.mysql.jdbc.Driver");
Class.forName("com.mysql.jdbc.Driver").newInstance();
con = DriverManager.getConnection("jdbc:mysql://localhost/gcdBB_db","","");
catch (ClassNotFoundException e)
error = "ClassNotFoundException: Could not locate DB driver.";
throw new ClassNotFoundException(error);
catch (SQLException e)
error = "SQLException: Could not connect to database.";
throw new SQLException(error);
catch (Exception e)
error = "Exception: An unknown error occured while connecting to database.";
throw new Exception (error);
     public void disconnect() throws SQLException
try
if(con != null)
con.close();
catch (SQLException e)
error = ("SQLException: Unable to close the database connection.");
throw new SQLException(error);
public java.sql.ResultSet validateRegistration(String firstname, String lastname, String role, String email) throws SQLException, Exception
java.sql.ResultSet rs = null;
try
String queryString = ("INSERT INTO registration (firstname,lastname,role,email) VALUES ('" + firstname + "','" + lastname + "','" + role + "','" + email + "';");
java.sql.Statement stmt = con.createStatement();
rs = stmt.executeQuery(queryString);
catch (SQLException e)
error = "SQLException: Could not execute the query.";
throw new SQLException(error);
catch (Exception e)
error = "An exception occured while retrieving users.";
throw new Exception(error);
return rs;
Thanks,
Niall

in JavaBean class:
The setting/getting method should be matched with the first letter capitalized. ie.
String firstName;
String lastName;
public void setFirstName(String value) { firstName = value ; }
public String getFirstName() { return firstName; }
public void setLastName(String value) { lastName = value ; }
public String getLastName() { return lastName; }
String role and email coded correctly.
remember: put your bean in package and call from package.

Simple Java Bean Model in Wed Dynpro

Hello All,
I have to develop a WD Java application with an Oracle DB as the backend. To application was designed to abstract the backend interaction into a Java bean model. The data connection and retrieval was successful. To move the data to the context following steps were performed:
1. Create a java class with the variables to be used as context in the application. Ex: Name, Subject, Email
2. On interting the ResultSet, set the values to the variables.
But, only the last row of data is retained. We tried to use array but have not been able to move the ste of values to the context.
Request your help in this regard to store the set of values into the context.
Thank you.

Hi,
It looks like you are overwriting the same context element when populating it with the values from the resultset.
Make sure you create every time a new context element and add it to the context root.
while (rs.hasNext()) {
    ContextElement elem = new ContextElement(); // or something simular appropiate to your element
    elem.setName(rs.next().getName());
    contextRootNode.addElement(elem);
Hope this helps a little.
Regards,
Alain

Getting Java Beans working with Developer Forms 6i

Hello everyone,
I have been trying to get Java Beans to work with the Developer Forms 6i. I keep getting diffrent errors depending on the bean I play with. I will detail the problems and the computer setup. I am sure this problem is a configuration one, I just dont seem to have enough experiance to determine the issue or the configuration problem.
Here are the problems I am encountering:
Problems 1:
--JDeveloper 10g
I cant see the VBean class. When I add this code, the VBean decleration comes up with an error.
import oracle.forms.ui.VBean;
public class MyNewClass extends VBean
public Class1()
This code shows the IMPORT statement with a wavy blue line under it and the word VBean after the extends also has on. I understand that this means that the JDeveloper cant find the class, I just cant seem to find the correct environment variable to set to point to this.
Second Problem:
--Forms 6i
I open forms, and create a new form. I then add a datablock and a canvas. I open the canvas and drop the BeanArea component on the canvas. I enter the fully pathed/qualified Bean in the Implementation Class and get one of three errors. Either a FRM-13008, a FRM-99999 with a 13009 or a 13010 error. I suspect that the 13008 error is because the bean I created does not have the correct decleration types or IView interface calls. My problem is that when I load any of the Oracle provided beans I get the 13009 or 13010 errors. I have looked here and in Metalinks for some kind of solution that I haven't already tryed, but to no avail.
Any advice on either of these problems would be appreciated. Please keep in mind that we cant upgrade to version 9 or 10 yet (silly aif force and their regulations), so those type of solutions arn't usable to me.
Here is the configuration information that I know about. If there is more information that can be provided or I need to provide more information, please let me know and I will get what I can.
Thanks,
Bill Hunsicker
============= Config Information =======================
Forms Version 6.0.8.25.2
JBuilder Version and Information
Oracle IDE     9.0.5.13.88
Business Components Version     9.0.5.13.52
UML Modelers Version     9.0.5.12.38
Versioning Support     9.0.5.12.38
WebDAV Support Version     9.0.5.12.38
Designer Generators Framework     9.0.5.3.39
java.version     1.4.1_02
java.home     C:\Oracle\JDeveloper\jdk\jre
java.vm.name     OJVM Client VM
java.vm.vendor     Oracle Corp.
java.vm.version     9.0.5.972 4dopv
user.language     en
user.region     <no value assigned>
user.name     Bill.Hunsicker
user.home     C:\Documents and Settings\Bill.Hunsicker
user.dir     C:\Oracle\JDeveloper\jdev\bin
os.name     Windows XP
os.version     5.1
os.arch     x86
ide.patches
ide.user.dir
FORMS60_JAVADIR = C:\orant\FORMS60\java
CLASSPATH = C:\orant\FORMS60\java;C:\orant\TOOLS\COMMON60\JAVA\IMPORTER.JAR;C:\orant\forms60\java\P3load.jar;C:\orant\forms60\java\f60all.jar

Ok, I added the f60all.jar to the project. This allowed me to create the file using the VBean. I created the JAR file and copied it to the forms60/java directory. I also copied the new .class files to the forms60/java/mil/af/rs/leads direcory.
I then edited my formsweb.cfg file and had to add the jinit_archive tag. I set it = f60all.jar, P3load.jar. I also added my P3load.jar file to the default archive tag.
When I open up Forms, drop the bean area component on the canvas, and set the Implementation Class, I still get an error (13008), and when I run the form in web, and click the button to invoke the bean I get no response from the bean.
here is the code to invoke the bean. in_filename is a text component on the canvas and contained in the CTRL block. The bean area is named BEAN (because the demo was that way).
:in_filename := get_custom_property('BEAN',1,'getFileName');
synchronize;
Not sure where to go from here, but thanks for the help so far.

Need to print Java Bean contents

Working on Oracl 9i Designer but 10g database.
I have a Form in which I have a bean. I need to print the contents (text) from this bean. Any ideas ?? Cannot use WebUtil.
Thanks
2963121

My knowledge is all in Forms. I have added the Java ean example for the Graph and need to print this, but bear ini mind i have merely attached this ready made example provided by oracle. What program do i use and how do i print this graph. Using th Java code you provided for printing does this need to be done within the Java bean or can i do it within Forms?
This is our first look at a bean so we have limited knowledge, but want to incorporate the graph into our form.

What makes a Java Bean invaild for a model import?

I'm busy prototyping some functionality that will expose some MDM 5.5 data through a WebDynpro application. I'm having a problem creating a java bean that will sit in front of an EJB, in that the Bean importer will refuse to import a bean if a certain line of code in a method is visible. Here's the offending code from the method:
try {
     A2iResultSet rs = cat.GetRecordsByValue(ary, rsd, Schema.MyTable.NAME);
     setEventLocation(rs.GetValueAt(0, Schema.MyTable.EVENT_LOCATION).GetStringValue());
} catch (StringException e) {
     setEventLocation("failed to find record");
Note that I have a class instance variable called 'eventLocation', which has get/set methods defined for it, thereby satisfying the Javabean requirement.
The first two lines of the 'try' block are the problem. If I comment them out and assemble the DC, I can import the Bean into a model with no issues. If I uncomment them, I cannot import the bean - I get a message that says 'Invalid Jar - no beans to import'.
Can someone explain why this is happening? Does it have something to do with the StringException? As far as I can tell from the Java bean model import documentation, I think I'm doing everything correctly, but something must be amiss.
Suggestions?

Pablo,
Now I understand your question in comments to my blog better
You have to add "ejb20" classes to your WebDynpro project as well, and import model afterwards.
In WebDynpro DC expand path (<project> -> DC MetData -> DC Definition -> Used DC) and invoke "Add Used DC..." in contextual menu. In dialog select "<dev. config> -> SAP-J2EE -> ejb20 -> DC MetaData -> Public Parts -> default". Set dependencies Built-time (probably Design-time as well). Click OK. Try to import model. If fails, restart IDE and try to import again.
Valery Silaev
EPAM Systems
http://www.NetWeaverTeam.com/

Java Bean Design

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