Major When defining a select box like this:
<f:entry title="Version Control System type" field="vcs"> <f:select/> </f:entry>
and validating the value through a
int i = 0; public FormValidation doCheckVcs(@QueryParameter String value) { System.out.println(i + ": value: " + value); i++; try { VersionControlSystem.valueOf(value); return FormValidation.ok(); } catch (IllegalArgumentException ex) { return FormValidation.error("Please select one of the Version Control Systems."); } }
method, it can be observed that the validation method is called two times when opening the configuration menu (http://localhost:8080/configure). The first time, the correct default value, i.e., the selected item's value, is passed to the validation method. The second time, no data is passed in (see following code listing for output).
0: value: MERCURIAL 1: value:
The code is additionally available on GitHub:
Descriptor: https://github.com/bripkens/janus-plugin/blob/389833439d11cc4daf5666c1ac7fb98ecad28471/src/main/java/de/codecentric/janus/plugin/Root.java
Jelly: https://github.com/bripkens/janus-plugin/blob/389833439d11cc4daf5666c1ac7fb98ecad28471/src/main/resources/de/codecentric/janus/plugin/Root/global.jelly
Data is provided in the following way:
public ListBoxModel doFillVcsItems() { ListBoxModel m = new ListBoxModel(); m.add("Please select", ""); for (VersionControlSystem vcs : VersionControlSystem.values()) { if (this.vcs == vcs) { m.add(new ListBoxModel.Option(vcs.name(), vcs.name(), true)); } else { m.add(vcs.name()); } } return m; }
