Examples of de.odysseus.calyxo.forms.view.ListModel

de.odysseus.calyxo.forms.view.ListModel
List model interface.
A list model defines a bijection between string keys and object values. That is, each key corresponds to exacly one value and vice versa. Keys must not be null or empty. Values must not be null.
The interface provides a method to lookup labels and to get all values in some sorted order. The interface defines some keys for common sort criteria. Generally, an implementation must support the INDEX_ORDER order. If an implementation does not support some other requested order, it should answer the values in INDEX_ORDER instead. @author Oliver Stuhr @author Christoph Beck

  /*
   * (non-Javadoc)
   * @see de.odysseus.calyxo.base.taglib.html.AbstractTag#getBodyContent()
   */
  public String getBodyContent() throws Exception {
    ListModel listModel = selectTag.getListModel();
    GroupModel groupModel = selectTag.getGroupModel();


    int order = getListModelOrder();
    boolean descend = sort.startsWith("-");
    Locale locale = I18nSupport.getInstance(pageContext).getLocale(pageContext);
    Iterator values = listModel.getValues(order, descend, locale);


    StringBuffer s = new StringBuffer();
    while (values.hasNext()) {
      Object value = values.next();
      String key = listModel.getKey(value);
      s.append("<option");
      s.append(" value=\"");
      s.append(key);
      s.append("\"");
      if (groupModel.isSelected(key)) {
        s.append(" selected=\"selected\"");
      } else if (!groupModel.isSelectionAvailable()) {
        if (key.equals(this.key) || keys != null && keys.contains(key)) {
          s.append(" selected=\"selected\"");
        }
      }
      appendAttributes(s);
      s.append(">");
      s.append(listModel.getLabel(value, locale));
      s.append("</option>");
    }
    return s.toString();
  }

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  protected String getBodyContent() throws Exception {
    if (getValue() == null) { // 'default option' mode
      return null;
    }
    // get label from list model
    ListModel listModel = selectTag.getListModel();
    Object value = listModel.getValue(getValueAttribute());
    Locale locale = I18nSupport.getInstance(pageContext).getLocale(pageContext);
    return listModel.getLabel(value, locale);
  }

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  /*
   * (non-Javadoc)
   * @see de.odysseus.calyxo.base.access.DynamicMapAccessor#get(javax.servlet.http.HttpServletRequest, java.lang.Object)
   */
  protected Object get(HttpServletRequest request, Object key) {
    ListModel model = (ListModel)key;
    if (model == null) {
      throw new AccessException("No list model!");
    }
    return new ListModelBean(model, i18n.getLocale(request));
  }

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              object = context.getServletContext().getAttribute(attribute);
              break;
      case UNKNOWN:  throw new RuntimeException("Unknown scope '" + scope + "'!");
    }


    ListModel result = null;
    if (property == null) {
      result = (ListModel)object;
    } else {
      try {
        result = (ListModel)PropertyUtils.getNestedProperty(object, property);

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  /* (non-Javadoc)
   * @see de.odysseus.calyxo.forms.Converter#parse(javax.servlet.http.HttpServletRequest, java.lang.String)
   */
  public Object parse(HttpServletRequest request, String key) throws ParseException {
    ListModel listModel = getListModel(request);
    if (!listModel.containsKey(key)) {
      if (key == null || key.length() == 0) {
        if (listModel.getKey(null) != null) {
          throw new ParseException("Cannot parse empty/null input", 0);
        }
        return null;
      }
      throw new ParseException("Unknown list model key", 0);
    }
    return listModel.getValue(key);
  }

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Related Classes of de.odysseus.calyxo.forms.view.ListModel

de.odysseus.calyxo.forms.convert.ListModelConverter

de.odysseus.calyxo.forms.misc.ListModelAccessor

de.odysseus.calyxo.forms.taglib.html.ListOptionsTag

de.odysseus.calyxo.forms.taglib.html.ListOptionTag

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