Primefaces static and dynamic columns in datatable

Question

I am using Primefaces 5.0 to create a dynamic datatable.

My DataObject has some required fields and a List of optional \"tupel\" (key-value pair). The optional list

Answer 1

java:

@Named
@ViewScoped
public class LiveRangeService implements Serializable {
    private List< Map > tableData;
    private List tableHeaderNames;


    public List> getTableData() {
        return tableData;
    }
    public List getTableHeaderNames() {
        return tableHeaderNames;
    }

    public void PlayListMB() {
        tableData = new ArrayList< Map >();

        //Generate table header.
        tableHeaderNames = new ArrayList();
        for (int j = 0; j < 5; j++) {
              tableHeaderNames.add(new ColumnModel("header "+j, " col:"+ String.valueOf(j+1)));
        }

        //Generate table data.
        for (int i = 0; i < 10; i++) {
            Map playlist = new HashMap();
            for (int j = 0; j < 5; j++) {
                playlist.put(tableHeaderNames.get(j).key,new ColumnModel(tableHeaderNames.get(j).key,"row:" + String.valueOf(i+1) +" col:"+ String.valueOf(j+1)));
            }
            tableData.add(playlist);
        }
    }

    static public class ColumnModel implements Serializable {

        private String key;
        private String value;

        public ColumnModel(String key, String value) {
            this.key = key;
            this.value = value;
        }

        public String getKey() {
            return key;
        }

        public String getValue() {
            return value;
        }
    }

And XHTML:

                

                    

                          header table 

                        
                            
                                
                            
                            
                        

                        
                            
                                

                            
                            
                            

                        

                    
                

That's a example.