Examples of org.apache.myfaces.trinidad.util.ListFromCollection$MakeList

org.apache.myfaces.trinidad.util.ListFromCollection

Bean that can dynamically produce Lists from Collections. The Collections must implement size(). Create an instance of this bean as a managed bean:

Example:

 <managed-bean> <managed-bean-name>makeList</managed-bean-name> <managed-bean-class> org.apache.myfaces.trinidad.util.ListFromCollection </managed-bean-class> <managed-bean-scope> request </managed-bean-scope> <!-- Let's buffer 25 rows at a time (the default is 50) --> <managed-property> <property-name>size</property-name> <value>25</value> <managed-property> </managed-bean>

 <h:dataTable value="#{makeList.list[someSet]}> </h:dataTable>

Note, though, that it is extremely expensive to use this bean for the items of an tr:forEach (or c:forEach in JSF 1.2 or Facelets).

  {
    TreeSet<Integer> tree = new TreeSet<Integer>();
    for (int i = 0; i < 250; i++)
      tree.add(new Integer(i));


    ListFromCollection lfc = new ListFromCollection();
    lfc.setSize(100);


    List<?> list = lfc.getList().get(tree);
    assertEquals(tree.size(), list.size());
    assertEquals(new Integer(5), list.get(5));
    assertEquals(new Integer(155), list.get(155));
    assertEquals(new Integer(0), list.get(0));
    assertEquals(new Integer(99), list.get(99));

Examples of org.apache.myfaces.trinidad.util.ListFromCollection$MakeList

Example:

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