bt_index.h

// 91574 Database II - C++ Programming
// Swathi Kurunji, UMass Lowell, MA, 2011
// bt_index.h - definition of class BtreeIndex.

#ifndef BT_INDEX_H
#define BT_INDEX_H

#include<iostream>
#include<cstdlib>
using namespace std;

#include "bt_node.h"
#include "bt_errors.h"

// BtreeIndex class defines the structure of B+tree index nodes
// BtreeIndex is derived from BtreeNode

class BtreeIndex: public BtreeNode
{

	public:
		BtreeIndex()
		{
			set_type( INDEX );
			set_keyCount(0);
			//include all other initializations here
		};

		virtual ~BtreeIndex();

		//insert key of type "KeyId", keyCount of type "int", leftChild and rightChild pointers of type BtreeNode*
		Status insertKey( KeyId, int, BtreeNode*& leftChild,
				BtreeNode*& rightChild );

		Status deleteKey( KeyId, int );

		Status searchKey( KeyId, int, BtreeNode*& childPtr );

};

#endif