Examples of org.zkoss.zk.ui.sys.IdGenerator.nextPageUuid()

org.zkoss.zk.ui.sys.IdGenerator.nextPageUuid()

Returns the next page UUID for the specified page, or null to generate the default UUID.

Default (if null is returned): UUID is generated by prefixing a portion of the desktop's ID with a number starting from 0.

Notice that UUID cannot be empty and can only have alphanumeric characters or underscore (i.e., a-z, A-Z, 0-9, and _). In additions, UUID for pages cannot be the same as UUID for components.

Also notice that the execution can be retrieved by use of {@link org.zkoss.zk.ui.Executions#getCurrent}. @return the next page UUID, or null to generate thedefault UUID.

  public int getNextKey() {
    return _nextKey++;
  }
  public String getNextUuid(Page page) {
    final IdGenerator idgen = ((WebAppCtrl)_wapp).getIdGenerator();
    String uuid = idgen != null ? idgen.nextPageUuid(page): null;
    if (uuid == null)
      return nextUuid();


    ComponentsCtrl.checkUuid(uuid);
    return uuid;

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