Birt Global Integer

Posted by matschie on Stack Overflow See other posts from Stack Overflow or by matschie
Published on 2010-05-31T09:35:37Z Indexed on 2010/05/31 9:43 UTC
Read the original article Hit count: 329

Filed under:

reports

|

global-variables

|

birt

Hi there I have a Birt Report which read some stuff from a database. After that i want to increment a global Integer for every Detailrow that is loaded. So far i have initialized a global Integer with the following lines:

importPackage(Packages.java.lang);
reportContext.setPersistentGlobalVariable("minTotalPlus", new Integer(0));

After that i added the following line into a field in my detail row:

reportContext.setGlobalVariable("minTotalPlus",  new Integer reportContext.getGlobalVariable("minTotalPlus")) + 1);

When i preview the report i get an "java.lang.NumberFormatException: null" which means that the global variable is null. Why is that so? How could I fix that?

© Stack Overflow or respective owner

Related posts about reports

Grep Crystal Reports (with Sub-reports)

as seen on Stack Overflow - Search for 'Stack Overflow'
I need a way to quickly search a large number of Crystal reports (with sub-reports) for the names of several stored procedures. (Trying to find dependencies.) I'm running Windows XP and downloaded this grep program - http://www.wingrep.com/download.htm. So far, I'm not convinced that it's working… >>> More
Scheduling parameterized reports in Crystal Reports Server

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm trying to set up a report to run monthly in Crystal Reports Server 2008 that will give me the next month's Affordable Care Plan termination dates. However, as far as I can tell, I can only give it a particular date string, not "7 days after the report is scheduled". How do I do this? (Same question… >>> More
SQL Server Reports IDE for creating reports

as seen on Stack Overflow - Search for 'Stack Overflow'
I have to modify SQL Server reports. It is not easy to modify directly XML report file (*.rdl). Is there any IDE for editing SQL Server Reports? >>> More
Alternate line colors in reports using Crystal Reports

as seen on C# Corner - Search for 'C# Corner'
Sometimes when we have a big reports displaying heavy textual information, one technique to visualize data in a consistent way is to shade line in alternate colors. In this article, I will show how Crystal Reports enables this technique very easily. >>> More
How to convert SSRS 2008 Server reports to SSRS 2008 Client Reports

as seen on Stack Overflow - Search for 'Stack Overflow'
I have a large SSRS 2008 Server Report Project (more than 200 reports). Currently my companystrategy has been changed and we want to convert these server reports to client reports. All of the Server reports uses Storeprocedures (or in some cases from the SQl Functions) All of them work properly… >>> More

Related posts about global-variables

Seeking enlightenment - global variables in AppEngine (aeoid.get_current_user())

as seen on Stack Overflow - Search for 'Stack Overflow'
Hello This may be a 'Python Web Programming 101' question, but I'm confused about some code in the aeoid project (http://github.com/Arachnid/aeoid). here's the code: _current_user = None def get_current_user(): """Returns the currently logged in user, or None if no user is logged in.""" … >>> More
global variables in c#.net

as seen on Stack Overflow - Search for 'Stack Overflow'
how can i set a global variable in a c# web application? what i want to do, is to set a variable on a page (master page maybe) and access this variable from any page. i neither want to use cache nor sessions. i think i have to use global.asax... any help? >>> More
I've Heard Global Variables Are Bad, What Alternative Solution Should I Use?

as seen on Stack Overflow - Search for 'Stack Overflow'
I've read all over the place that global variables are bad and alternatives should be used. In Javascript specifically, what solution should I choose. I'm thinking of a function, that when fed two arguments (function globalVariables(Variable,Value)) looks if Variable exists in a local array and if… >>> More
How can I write classes that don't rely on "global" variables?

as seen on Stack Overflow - Search for 'Stack Overflow'
When I took my first programming course in university, we were taught that global variables were evil & should be avoided at all cost (since you can quickly develop confusing and unmaintainable code). The following year, we were taught object oriented programming, and how to create modular code… >>> More
python global variable trouble

as seen on Stack Overflow - Search for 'Stack Overflow'
I am having troubles using global variables in python... In my program, i have declared 2 global variables, global SYNC_DATA and global SYNC_TOTAL_SIZE Now in one of my functions, I am able to use the global variable SYNC_DATA without declaring it as global again in the function; however , I am… >>> More