Add pagination sort by column

components/device-mgt/org.wso2.carbon.device.mgt.common/src/main/java/org/wso2/carbon/device/mgt/common/PaginationRequest.java

@@ -44,6 +44,8 @@ public class PaginationRequest {
     private Map<String, Object> property = new HashMap<>();
     private List<String> statusList = new ArrayList<>();
     private OperationLogFilters operationLogFilters = new OperationLogFilters();
+    private List<String> sortColumnList = new ArrayList<>();
+    private List<String> sortTypeList = new ArrayList<>();
     public OperationLogFilters getOperationLogFilters() {
         return operationLogFilters;
     }
@@ -177,6 +179,7 @@ public class PaginationRequest {
         return "Device type '" + this.deviceType + "' Device Name '" + this.deviceName + "' row count: " + this.rowCount
                 + " Owner role '" + this.ownerRole + "' owner pattern '" + this.ownerPattern + "' ownership "
                 + this.ownership + "' Status '" + this.statusList + "' owner '" + this.owner + "' groupId: " + this.groupId
-                + " start index: " + this.startIndex;
+                + " start index: " + this.startIndex + "' SortColumnList '" + this.sortColumnList + "' SortTypeList '"
+                + this.sortTypeList;
     }
 }