From 4582a22e254c682b0e91750725401d018c9e93f2 Mon Sep 17 00:00:00 2001
From: Ricardo Markiewicz <rmarkie@fi.uba.ar>
Date: Thu, 15 Sep 2005 03:40:52 +0000
Subject: [PATCH] Agrego ChildData

---
 src/btree_data.cpp | 48 ++++++++++++++++++++++++++++++++++++++++------
 src/btree_data.h   | 46 ++++++++++++++++++++++++++++++++++----------
 2 files changed, 78 insertions(+), 16 deletions(-)

diff --git a/src/btree_data.cpp b/src/btree_data.cpp
index dd6f709..b95b86a 100644
--- a/src/btree_data.cpp
+++ b/src/btree_data.cpp
@@ -12,11 +12,17 @@ BTreeData::BTreeData (uchar *node)
 	memcpy (&hijo, node, sizeof (uint));
 }
 
+BTreeData::BTreeData (Clave *k, uint child)
+{
+	clave = k;
+	hijo = child;
+}
+
 BTreeData::~BTreeData ()
 {
 }
 
-uint BTreeData::Size ()
+uint BTreeData::Size () const
 {
 	uint s = sizeof (uint);
 	if (clave) s += clave->Size ();
@@ -24,11 +30,14 @@ uint BTreeData::Size ()
 	return s;
 }
 
-uchar* BTreeData::ToArray ()
+uchar* BTreeData::ToArray () const
 {
 	uchar *out = new uchar[Size()];
-	memcpy (out, clave->ToArray (), clave->Size ());
-	memcpy (out+clave->Size (), &hijo, sizeof (uint));
+	if (clave) {
+		memcpy (out, clave->ToArray (), clave->Size ());
+		memcpy (out+clave->Size (), &hijo, sizeof (uint));
+	} else
+		memcpy (out, &hijo, sizeof (uint));
 	return out;
 }
 
@@ -42,13 +51,40 @@ BTreeLeafData::~BTreeLeafData ()
 {
 }
 
-uint BTreeLeafData::Size ()
+uint BTreeLeafData::Size () const
 {
+	std::cout << "BTreeLeafData::Size()" << std::endl;
+	if (!clave) {
+		std::cout << "BTreeLeafData::Size : No tengo clave!" << std::endl;
+		return 0;
+	}
 	return clave->Size ();
 }
 
-uchar* BTreeLeafData::ToArray ()
+uchar* BTreeLeafData::ToArray () const
 {
 	return clave->ToArray ();
 }
 
+BTreeChildData::BTreeChildData (uchar *node)
+{
+	memcpy (&hijo, node, sizeof (uint));
+}
+
+BTreeChildData::~BTreeChildData ()
+{
+}
+
+uint BTreeChildData::Size () const
+{
+	std::cout << "BTreeChildData::Size()" << std::endl;
+	return sizeof (uint);
+}
+
+uchar* BTreeChildData::ToArray () const
+{
+	uchar *out = new uchar[Size()];
+	memcpy (out, &hijo, sizeof (uint));
+	return out;
+}
+
diff --git a/src/btree_data.h b/src/btree_data.h
index 44a3a77..cfe6ef8 100644
--- a/src/btree_data.h
+++ b/src/btree_data.h
@@ -10,21 +10,24 @@
 /** Dato a guardar en los nodos */
 class BTreeData {
 	public:
-		BTreeData () { clave = NULL; }
+		BTreeData () {}
 		BTreeData (uchar *node);
+		BTreeData (Clave *k, uint child);
 		virtual ~BTreeData ();
 
-		virtual uint Size ();
-		virtual uchar *ToArray ();
+		virtual uint Size () const;
+		virtual uchar *ToArray () const;
 
 		Clave* getClave () { return clave; }
 
 		bool operator < (const BTreeData &data) const;
 		virtual operator std::string () const {
-			if (clave) {
-				return (*clave);
-			}
-			return "NoKey";
+			std::string out = (*clave);
+			std::stringstream ss;
+			ss << out << " ";
+			ss << hijo;
+			ss >> out;
+			return out;
 		}
 	protected:
 		Clave *clave;
@@ -34,12 +37,35 @@ class BTreeData {
 /** Dato a guardar en las hojas */
 class BTreeLeafData:public BTreeData {
 	public:
-		BTreeLeafData (Clave *k):BTreeData () { clave = k; }
+		BTreeLeafData (Clave *k) { clave = k; }
 		BTreeLeafData (uchar *node) { clave = new ClaveFija (node); }
 		virtual ~BTreeLeafData ();
 
-		virtual uint Size ();
-		virtual uchar *ToArray ();
+		virtual uint Size () const;
+		virtual uchar *ToArray () const;
+		virtual operator std::string () const {
+			if (clave) {
+				return (*clave);
+			}
+			return "NoKey";
+		}
+};
+
+class BTreeChildData:public BTreeData {
+	public:
+		BTreeChildData (uint child):BTreeData () { hijo = child; }
+		BTreeChildData (uchar *node);
+		virtual ~BTreeChildData ();
+
+		virtual uint Size () const;
+		virtual uchar *ToArray () const;
+		virtual operator std::string () const {
+			std::string out;
+			std::stringstream ss;
+			ss << hijo;
+			ss >> out;
+			return out;
+		}
 };
 
 #endif
-- 
2.43.0