How to get default content using the data() function

sj00325941

This is how I'm initializing my DataTables

clustTbl = $('#dt').DataTable( {
     "ajax": {
     "url": "getClusters.do",
     "type": "POST"
},
"autoWidth": false,
"defaultContent": "NA",
"columns": [

              {
                data: null,
                defaultContent: '<input class="row" type="checkbox" /><i id="colFilter" class="fa fa-pencil-square-o" onclick="singleEdit(this)" title="Edit This Cluster"></i>',
                orderable: false
              },
              {
                data: "clusterName",
                defaultContent: "<font color='red'>null</font>",
                width: "10%"
              },
              {
                data: "clusterNameLastValue",
                defaultContent: "",
                "visible": false,
                "searchable": false,
              },
              {
                data: "clustPlanner",
                defaultContent: "<font color='red'>null</font>"
              },
              {
                data: "clustPlannerLastValue",
                defaultContent: "",
                "visible": false,
                "searchable": false,
              },
              {
                data: "clustPlannerContactId",
                defaultContent: "",
                "visible": false,
                "searchable": false,
              },
              {
                data: "clustBackPlanner",
                defaultContent: "<font color='red'>null</font>"
              },
              {
                data: "clustBackPlannerLastValue",
                defaultContent: "",
                "visible": false,
                "searchable": false,
              },
              {
                data: "clustBackPlannerContactId",
                defaultContent: "",
                "visible": false,
                "searchable": false,
              },
              {
                data: "clusterOpen",
                defaultContent: "<font color='red'>null</font>"
              },
              {
                data: "clusterOpenLastValue",
                defaultContent: "",
                "visible": false,
                "searchable": false,
              },
              {
                data: "hypervisor",
                defaultContent: "<font color='red'>null</font>"
              },
              {
                data: "hypervisorLastValue",
                defaultContent: "",
                "visible": false,
                "searchable": false,
              },
              {
                data: "orchestrator",
                defaultContent: "<font color='red'>null</font>"
              },
              {
                data: "orchestratorLastValue",
                defaultContent: "",
                "visible": false,
                "searchable": false,
              },
              {
                data: "environment",
                defaultContent: "<font color='red'>null</font>"
              },
              {
                data: "environmentLastValue",
                defaultContent: "",
                "visible": false,
                "searchable": false,
              },
              {
                data: "appOwnerType",
                defaultContent: "<font color='red'>null</font>"
              },
              {
                data: "appOwnerTypeLastValue",
                defaultContent: "",
                "visible": false,
                "searchable": false,
              },
              {
                data: "timezoneOffset",
                defaultContent: "<font color='red'>null</font>"
              },
              {
                data: "timezoneOffsetLastValue",
                defaultContent: "",
                "visible": false,
                "searchable": false,
              },
              {
                data: "alias",
                defaultContent: "<font color='red'>null</font>"
              },
              {
                data: "aliasLastValue",
                defaultContent: "",
                "visible": false,
                "searchable": false,
              },
              {
                data: "clusterNotes",
                defaultContent: "<font color='red'>null</font>"
              },

              {
                data: "clusterNotesLastValue",
                defaultContent: "",
                "visible": false,
                "searchable": false,
              },
            ],
            "rowCallback": function( row, data, index ) {
                $(row).children("td:first-child").each(function(){
                    $(this).find('input').attr('id', data.vmwClustDimId);
                });
                //console.log(($(row).children("td:first-child")).$("input[type='checkbox'"));
            },
            "drawCallback": function( settings ) {
                $('#load-div').css('display', 'none');
                $('#content-wrapper').show();
            },
            order: [ 1, 'asc' ],
            tableTools: {
              sRowSelect: "os",
              sRowSelector: 'td:first-child',
            }
 });

As you can see, I have a default content for my first column which is a checkbox. I want to get the state of all the checkboxes at run-time for all the rows and then get the row's data for which this checkbox is selected. How do I do that ?

I tried using clustTbl.data() and iterating over it, but the data retrieved doesn't contain my first column.