How to save and load project

Wandora project is a collection of layers (i.e. topic maps) and general Wandora settings. Project is saved with File > Save project or File > Save project as menu options. Project is loaded to Wandora with File > Open project option found also in top menu bar. Opening project deletes current project in Wandora. Consider using File > Merge project to merge projects in Wandora. Revert menu option is used to restore previously loaded project to Wandora. File extension of Wandora project file is wpr.

Internal structure of Wandora project file

Wandora project file is a zip archive containing configuration file options.xml and layer folders layer0, layer1, layer2, etc. one folder for each layer. Layer folder contains a topic map file in XTM format or alternatively XML configuration file. Memory based topic maps generate a topic map file topicmap.xtm while database topic maps generate only a configuration file dboptions.xml used to establish the database connection. Sharing the project file shares also database settings such as database username and password. Changing the file extension, Wandora project file can be opened with common zip tools as shown below.

Here is an example of project's options.xml. Project contains two layers both containing memory topic maps. Second layer is read-only.

<?xml version="1.0" encoding="UTF-8"?>
<options>
  <layer0>
     <visiblity>true</visiblity>
     <readonly>false</readonly>
     <name>base.xtm</name>
     <selected>true</selected>
     <type>org.wandora.topicmap.memory.TopicMapImpl</type>
  </layer0>
  <layer1>
     <visiblity>true</visiblity>
     <readonly>true</readonly>
     <name>out.ltm</name>
     <type>org.wandora.topicmap.memory.TopicMapImpl</type>
  </layer1>
</options>