*/
private static void createKeyElements()
{
HashMap<String, mxGmlKey> keyMap = mxGmlKeyManager.getInstance()
.getKeyMap();
mxGmlKey keyNode = new mxGmlKey(mxGmlConstants.KEY_NODE_ID,
mxGmlKey.keyForValues.NODE, mxGmlConstants.KEY_NODE_NAME,
mxGmlKey.keyTypeValues.STRING);
keyMap.put(mxGmlConstants.KEY_NODE_ID, keyNode);
mxGmlKey keyEdge = new mxGmlKey(mxGmlConstants.KEY_EDGE_ID,
mxGmlKey.keyForValues.EDGE, mxGmlConstants.KEY_EDGE_NAME,
mxGmlKey.keyTypeValues.STRING);
keyMap.put(mxGmlConstants.KEY_EDGE_ID, keyEdge);
mxGmlKeyManager.getInstance().setKeyMap(keyMap);
}