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1 package com.daffodilwoods.daffodildb.server.datasystem.btree;
2
3 import com.daffodilwoods.daffodildb.server.datasystem.indexsystem.*;
4 import com.daffodilwoods.database.resource.DException;
5 import com.daffodilwoods.daffodildb.server.datasystem.interfaces._DatabaseUser;
6
7 public interface _Node {
8
9 void insert(int position,BTreeElement element,boolean flag) throws DException;
10 void updateBtree(BTreeKey btreekey,Object  newKey,Object newValue) throws DException;
11 void delete(int position)throws DException;
12 BTreeElement getElement(int position)throws DException;
13 boolean isLeafNode()throws DException;
14 void updateNode(int position,boolean flag) throws DException;
15 public Object getParentNode(_DatabaseUser user) throws DException;
16 int getElementCount()throws DException;
17 BTreeElement createElement(boolean leaf,_DatabaseUser user, Object key,Object value,BTreeNode leftNode,BTreeNode rightNode) throws DException;
18 short getLevel();
19 void setLevel(short level) throws DException;
20 void updateElementCount(boolean increase) throws DException;
21 int getSplitPoint() throws DException;
22 void insertRange(Object elements,int startPosition,int endPosition)throws DException;
23 void deleteRange(int startPosition,int endPosition)throws DException;
24 Object getElements()throws DException;
25 Object getNextNode(_DatabaseUser user) throws DException;;
26 Object getPreviousNode(_DatabaseUser user) throws DException;
27 void setNextNode(BTreeNode node) throws DException;
28 void setPreviousNode(BTreeNode node) throws DException;
29 Object getNodeKey() throws DException;
30 void setLeafNode(boolean flag)throws DException;
31 void insertDummyElement(BTreeElement element) throws DException;
32 void setParentNode(BTreeNode node) throws DException;
33 void updateChild(int position,Object key) throws DException;
34 Object getKey(int index) throws DException;
35 Object getChildNodeKey(int index) throws DException;
36 Object getValue(int index) throws DException;
37 void setIsNodeCanBeRemovedFromMap(boolean isNodeCanBeRemovedFromMap) ;
38 boolean isNodeCanBeRemovedFromMap() ;
39 }
40
41 |
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