iterate through arryalist in jrxml

[patil_ajay1982]

one of my paramater contains Arraylist like below.

HashMap m= new Map();

 

ArrayList temp= new ArrayList ();

temp.add("one");

temp.add("two");

m.put("dataSouce " , temp )

 

how could i populate these value in my report?

 

 

 

 

[lucianc]

You can use a subreport to iterate on the list.  Use a JRBeanCollectionDataSource for the subreport (with a single field mapped to _THIS).

Regards,

Lucian

[blaguman]

Yes, you can use a subreport for that.

You'll have to create a subreport, and give a subreport expression to the subreport element in your main report like :

new JRBeanCollectionDataSource($P{dataSource})  (with dataSource of type Collection, List, Arraylist...)

Your subreport will have a REPORT_DATA_SOURCE, and will iterate on the fields you tell him to. Like lucian said, map a field with _THIS (I didn't know that, very interesting ! :)), and use it in the detail band...

 

Regards,

Morgan