How to create a constructor dynamically

Hi ,
I want to create a constructor dynamically.
I have a bean class with 30 fields.
In my application I want to use this bean objects to hold the data returned from a ResultSet.
But the problem is I have dynamic columns returned by the ResultSet. some times it gives 10 & some times it will be 20.
I want to create a constructor on the fly with these dynamic columns.
Is it possible with the reflection API ? if possible, please give me sample code or link.
thanks
bhuvan

One way I have implemented a solution for this issue is creating a 'TransferEntity' that contains the generic values (in an array usually). Then you can wrapper this class with a "friendlier" one that has Get/Set methods. This allows you to always get the values you need (because the TransferEntity is inside) if they are variable. If not variable, you can simply use the Get/Set (which would reach inside the TransferEntity). Depending on how you're using the bean, you can simply put all the Get/Set methods inside and either return null, throw a NoSuchFieldException, etc.
Hope this helps...
Edited by: dfortae on Apr 29, 2010 2:44 AM

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How to create some columns dynamically in the report designer depending upon the input selection

Post Author: ekta
CA Forum: Crystal Reports
how to create some columns dynamically in the report designer depending upon the input selection
how export this dynamic report in (pdf , xls,doc and rtf format)
report format is as below:
Element Codes
1
16
14
11
19
10
2
3
Employee nos.
Employee Name
Normal
RDO
WC
Breveavement
LWOP
Sick
Carers leave
AL
O/T 1.5
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Total Hours
000004
PHAN , Hanh Huynh
68.40
7.60
76.00
000010
I , Jungue
68.40
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2.00
5.00
76.00
000022
GARFINKEL , Hersch
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2.10
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In the above report first column and the last columns are fixed and the other columns are dynamic depending upon the input selection:
if input selection is Normal and RDO then only 2 columns w'd be created and the other 2 fixed columns.
Can anybody help me how do I design such report....
Thanks

Hi Developer life,
According to your description that you want to dynamically increase and decrease the numbers of the columns in the table, right?
As Jason A Long mentioned that we can use the matrix to do this and put the year field in the column group, amount fields(Numric values) in the details, add an filter to filter the data base on this column group, but if
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Similar threads with details steps for your reference:
https://social.technet.microsoft.com/Forums/en-US/339965a1-8cca-41d8-83ef-c2548050799a/ssrs-dataset-column-metadata-dynamic-update?forum=sqlreportings
If your still have any problem, please try to provide us more details information, such as the data structure in the DB and the table structure you are currently designing.
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How to create a folder dynamically in KM repository

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Thanks in Advance,

>
Romano Bodini wrote:
> Hi,
>
> Search the forum. And the SDN. Then ask.
>
> [Creating folders in KM dynamically|http://www.sdn.sap.com/irj/scn/weblogs?blog=/pub/wlg/1761]
>
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How to create alv table dynamically by performing action on the button.

Hi all,
my requirement is to create alv table dynamically.
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2) close alv table
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else.
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Thanks & Regards,
Naveen
Edited by: naveen.webhelp on Feb 10, 2011 5:52 AM

Hi
ALV table will be shown in the viewcontainerUI element.
it is shown there empty if you dont fill the node bound to the data node of the interface controller of the comp usage
SALV_WD_TABLE.
and if you are not getting the table filled in the first place.
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there are many ways to do so.
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then in the showalv grid button's eventhandler write
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How to create a viewobject dynamically without using wizard

Hi,
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i have done thsi code:
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view.addDynamicAttributeWithType("Att1","String",null);
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Hi Vipin,
You can create the view object with rows populated at run time.
[http://download.oracle.com/docs/cd/E12839_01/web.1111/b31974/bcquerying.htm#CEGCGFCA]
For reference of how to create an empty rwo at run time on button click
[http://kohlivikram.blogspot.com/2008/10/add-new-row-in-adf-table-on-button.html]
~Vikram

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xhpxorcl (guest) wrote:
: I need to write a pl/sql package to create a view dynamic
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How to create a table dynamically in webdynpro

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According to your description that you want to dynamically increase and decrease the numbers of the columns in the table, right?
As Jason A Long mentioned that we can use the matrix to do this and put the year field in the column group, amount fields(Numric values) in the details, add an filter to filter the data base on this column group, but if
the data in the DB not suitable to add to the matrix directly, you can use the unpivot function to turn the column name of year to a single row and then you can add it in the column group.
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Similar threads with details steps for your reference:
https://social.technet.microsoft.com/Forums/en-US/339965a1-8cca-41d8-83ef-c2548050799a/ssrs-dataset-column-metadata-dynamic-update?forum=sqlreportings
If your still have any problem, please try to provide us more details information, such as the data structure in the DB and the table structure you are currently designing.
Any question, please feel free to let me know.
Best Regards
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How to create a constructor dynamically

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