org.argeo.cms.ux/src/org/argeo/cms/ux/widgets/DefaultTabularPart.java

   1 package org.argeo.cms.ux.widgets;
   2
   3 import java.util.ArrayList;
   4 import java.util.List;
   5
   6 public class DefaultTabularPart<INPUT, T> extends AbstractTabularPart<INPUT, T> implements TabularPart<INPUT, T> {
   7         private List<T> content;
   8
   9         @Override
  10         public int getItemCount() {
  11                 return content.size();
  12         }
  13
  14         @Override
  15         public T getData(int row) {
  16                 assert row < getItemCount();
  17                 return content.get(row);
  18         }
  19
  20         @Override
  21         public void refresh() {
  22                 INPUT input = getInput();
  23                 if (input == null) {
  24                         content = new ArrayList<>();
  25                         return;
  26                 }
  27                 content = asList(input);
  28                 super.refresh();
  29         }
  30
  31         protected List<T> asList(INPUT input) {
  32                 List<T> res = new ArrayList<>();
  33                 content.clear();
  34                 if (input instanceof List) {
  35                         content = (List<T>) input;
  36                 } else if (input instanceof Iterable) {
  37                         for (T item : (Iterable<T>) input)
  38                                 content.add(item);
  39                 } else {
  40                         throw new IllegalArgumentException(
  41                                         "Unsupported class " + input.getClass() + ", method should be overridden.");
  42                 }
  43                 return res;
  44         }
  45
  46 }