doc and cosmetics

1 files changed, 13 insertions, 0 deletions

diff --git a/src/Tree.cc b/src/Tree.cc
index 1561b4f..a451f24 100644
--- a/src/Tree.cc
+++ b/src/Tree.cc
@@ -3,6 +3,10 @@
 
 #include <assert.h>
 
+/*!
+	Returns the cached string representation of the subtree rootet by \a node.
+	If node is not cached, the cache will be rebuilt.
+*/
 const std::string &Tree::getString(const AbstractNode &node) const
 {
 	assert(this->root_node);
@@ -15,3 +19,12 @@ const std::string &Tree::getString(const AbstractNode &node) const
 	}
 	return this->nodecache[node];
 }
+
+/*!
+	Sets a new root. Will clear the existing cache.
+ */
+void Tree::setRoot(const AbstractNode *root)
+{
+	this->root_node = root; 
+	this->nodecache.clear();
+}