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2013-03-22T10:46:39.437
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You can pass multiple bean collections to a report by creating another bean that holds a beanCollection. Such a bean would look like this: <pre><code>public class DataBean { private Collection beanCollection = null; public DataBean() { } public Collection getBeanCollection() { return beanCollection; } public void setBeanCollection(Collection beanCollection) { this.beanCollection = beanCollection; } } </code></pre> I assume that the other collection will be of a different type than <code>ThemeBean</code>. I'm using <code>FruitBean</code> as an example. For each bean collection you want to pass, you create a <code>DataBean</code> and add it to a collection, then pass that collection to the report. So your code would change to be something like this: <pre><code>List<DataBean> allData = new ArrayList<DataBean>(); //...Create and populate `List<ThemeBean> themes` DataBean db = new DataBean(); db.setBeanCollection(themes); allData.add(db); //...Create and populate `List<FruitBean> fruits` db = new DataBean(); db.setBeanCollection(fruits); allData.add(db); //... Load the report JRBeanCollectionDataSource ds = new JRBeanCollectionDataSource(allData); //... Fill the report </code></pre> The report that you fill with this datasource will be a shell report, containing a subreport for each <code>DataBean</code> you created. There will only be one field available in this report: <code>$F{beanCollection}</code> Set the datasource expression of the subreport(s) to <code>new JRBeanCollectionDataSource($F{beanCollection})</code>. The fields for <code>ThemeBean</code> or <code>FruitBean</code> will then be available within the subreport. If you prefer to use list components instead of subreports, that would also work.
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