2 files changed, 65 insertions, 0 deletions
diff --git a/node/jumpbackwardnode.cpp b/node/jumpbackwardnode.cpp
new file mode 100644
index 0000000..c311ed2
--- /dev/null
+++ b/node/jumpbackwardnode.cpp
@@ -0,0 +1,38 @@
+#include "jumpbackwardnode.h"
+
+JumpBackwardNode::JumpBackwardNode()
+{
+}
+
+
+
+qint64 JumpBackwardNode::getPriority() const
+{
+	return 1;
+}
+QString JumpBackwardNode::toString() const
+{
+	return QString();
+}
+void JumpBackwardNode::run(ExecutionNode* previous)
+{
+		ExecutionNode* parent = previous;
+		bool found=false;
+		int i = 1;
+		Result* result=NULL;
+		while((NULL!=parent)&&(found))
+		{
+			result = parent->getResult();
+			if(NULL!=result)
+			{
+				--i;
+				if(i==0)
+				{
+					found =true;
+				}
+			}
+			parent = parent->getPreviousNode();
+
+		}
+		m_result = result;
+}
diff --git a/node/jumpbackwardnode.h b/node/jumpbackwardnode.h
new file mode 100644
index 0000000..d211385
--- /dev/null
+++ b/node/jumpbackwardnode.h
@@ -0,0 +1,27 @@
+#ifndef JUMPBACKWARDNODE_H
+#define JUMPBACKWARDNODE_H
+
+#include "executionnode.h"
+
+class JumpBackwardNode : public ExecutionNode
+{
+public:
+	JumpBackwardNode();
+
+	virtual void run(ExecutionNode* previous = NULL);
+
+	/**
+	 * @brief toString
+	 * @return
+	 */
+	virtual QString toString() const;
+	/**
+	 * @brief getPriority
+	 * @return
+	 */
+	virtual qint64 getPriority() const;
+
+
+};
+
+#endif // JUMPBACKWARDNODE_H