Efficient JSF Pagination

Question

Whats the most efficient way of doing pagination in JSF 2.0 app? I use Primefaces datatable and it is intelligent enough to perform pagination by itself with no coding at al

Answer 1

Important note depending on which version of Primefaces you are using. Starting with 3.0.M2 (I think) if you want to use the row select feature you must implement a SelectableDataModel. This breaks a lot of legacy code and there were a number of bitches about that.

Easiest thing to do is to create an inner class like this:

private MyDataModel dataModel = null;

public MyDataModel getDataModel() {
   if (dataModel != null) return dataModel;
   dataModel = new MyDataModel(some list);
   return dataModel;
}

public static class MyDataModel extends ListDataModel
        implements SelectableDataModel {

    MyDataModel(List source) {
        super(source);
    }
 etc.

Then the value attribute to p:dataTable becomes #{bean.dataModel}.

Good luck.