/// <summary>
/// B+树，固定长度字符串为键，映射至对象。
/// </summary>
/// <param name="tree">绑定到的B+树</param>
/// <param name="formatter">序列化器，默认为二进制序列化</param>
internal BPlusTreeObject(BPlusTreeBytes tree, IFormatter formatter)
{
this.tree = tree;
if (formatter == null)
{
this.formatter = new BinaryFormatter();
}
}
/// <summary>
/// B+树，固定长度字符串为键，映射至对象。
/// </summary>
/// <param name="tree">绑定到的B+树</param>
/// <param name="formatter">序列化器，默认为二进制序列化</param>
internal BPlusTreeObject(BPlusTreeBytes tree, IFormatter formatter)
{
this.tree = tree;
if (formatter == null)
{
this.formatter = new BinaryFormatter();
}
}
/// <summary>
/// B+树，固定长度字符串为键，映射至字符串。
/// </summary>
/// <param name="tree">绑定到的B+树</param>
internal BPlusTree(BPlusTreeBytes tree)
{
if (tree == null)
{
throw new ArgumentNullException("tree");
}
this.tree = tree;
}
/// <summary>
/// B+树，固定长度字符串为键，映射至对象。
/// </summary>
/// <param name="tree">绑定到的B+树</param>
internal BPlusTreeObject(BPlusTreeBytes tree)
: this(tree, null)
{
}
/// <summary>
/// B+树，固定长度字符串为键，映射至字符串。
/// </summary>
/// <param name="tree">绑定到的B+树</param>
internal BPlusTree(BPlusTreeBytes tree)
{
if (tree == null)
throw new ArgumentNullException("tree");
this.tree = tree;
}
/// <summary>
/// 创建B+树
/// </summary>
/// <param name="treeFileStream">指定树文件的文件流</param>
/// <param name="blockFileStream">指定块文件的文件流</param>
/// <param name="keyLength">树允许的键的长度</param>
/// <param name="nodeCapacity">树允许的各子节点的最大容量</param>
/// <param name="blockSize">块大小</param>
/// <returns>B+树</returns>
public static BPlusTreeObject Create(Stream treeFileStream, Stream blockFileStream, int keyLength, int nodeCapacity, int blockSize)
{
BPlusTreeBytes tree = BPlusTreeBytes.Create(treeFileStream, blockFileStream, keyLength, nodeCapacity, blockSize);
return(new BPlusTreeObject(tree));
}
/// <summary>
/// 创建B+树
/// </summary>
/// <param name="treeFileName">指定树文件的文件名</param>
/// <param name="blockFileName">指定块文件的文件名</param>
/// <param name="keyLength">树允许的键的长度</param>
/// <returns>B+树</returns>
public static BPlusTreeObject Create(string treeFileName, string blockFileName, int keyLength)
{
BPlusTreeBytes tree = BPlusTreeBytes.Create(treeFileName, blockFileName, keyLength);
return(new BPlusTreeObject(tree));
}
/// <summary>
/// 创建B+树
/// </summary>
/// <param name="treeFileName">指定树文件的文件名</param>
/// <param name="blockFileName">指定块文件的文件名</param>
/// <param name="keyLength">树允许的键的长度</param>
/// <param name="nodeCapacity">树允许的各子节点的最大容量</param>
/// <param name="blockSize">块大小</param>
/// <returns>B+树</returns>
public static BPlusTreeObject Create(string treeFileName, string blockFileName, int keyLength, int nodeCapacity, int blockSize)
{
BPlusTreeBytes tree = BPlusTreeBytes.Create(treeFileName, blockFileName, keyLength, nodeCapacity, blockSize);
return(new BPlusTreeObject(tree));
}
/// <summary>
/// B+树，固定长度字符串为键，映射至对象。
/// </summary>
/// <param name="tree">绑定到的B+树</param>
internal BPlusTreeObject(BPlusTreeBytes tree)
: this(tree, null)
{
}
/// <summary>
/// 从文件打开B+树，该树为只读树。
/// </summary>
/// <param name="treeFileName">指定树文件的文件名</param>
/// <param name="blockFileName">指定块文件的文件名</param>
/// <param name="formatter">序列化器</param>
/// <returns>B+树</returns>
public static BPlusTreeObject OpenReadOnly(string treeFileName, string blockFileName, IFormatter formatter)
{
BPlusTreeBytes tree = BPlusTreeBytes.OpenReadOnly(treeFileName, blockFileName);
return(new BPlusTreeObject(tree, formatter));
}
/// <summary>
/// 从文件打开B+树
/// </summary>
/// <param name="treeFileStream">指定树文件的文件流</param>
/// <param name="blockFileStream">指定块文件的文件流</param>
/// <param name="formatter">序列化器</param>
/// <returns>B+树</returns>
public static BPlusTreeObject Open(Stream treeFileStream, Stream blockFileStream, IFormatter formatter)
{
BPlusTreeBytes tree = BPlusTreeBytes.Open(treeFileStream, blockFileStream);
return(new BPlusTreeObject(tree, formatter));
}
/// <summary>
/// 从文件打开B+树
/// </summary>
/// <param name="treeFileName">指定树文件的文件名</param>
/// <param name="blockFileName">指定块文件的文件名</param>
/// <returns>B+树</returns>
public static BPlusTreeObject Open(string treeFileName, string blockFileName)
{
BPlusTreeBytes tree = BPlusTreeBytes.Open(treeFileName, blockFileName);
return(new BPlusTreeObject(tree));
}
/// <summary>
/// 创建B+树
/// </summary>
/// <param name="treeFileStream">指定树文件的文件流</param>
/// <param name="blockFileStream">指定块文件的文件流</param>
/// <param name="keyLength">树允许的键的长度</param>
/// <param name="formatter">序列化器</param>
/// <returns>B+树</returns>
public static BPlusTreeObject Create(Stream treeFileStream, Stream blockFileStream, int keyLength, IFormatter formatter)
{
BPlusTreeBytes tree = BPlusTreeBytes.Create(treeFileStream, blockFileStream, keyLength);
return(new BPlusTreeObject(tree, formatter));
}
/// <summary>
/// 创建B+树
/// </summary>
/// <param name="treeFileStream">指定树文件的文件流</param>
/// <param name="blockFileStream">指定块文件的文件流</param>
/// <param name="keyLength">树允许的键的长度</param>
/// <returns>B+树</returns>
public static BPlusTree Create(Stream treeFileStream, Stream blockFileStream, int keyLength)
{
BPlusTreeBytes tree = BPlusTreeBytes.Create(treeFileStream, blockFileStream, keyLength);
return(new BPlusTree(tree));
}
/// <summary>
/// 从文件打开B+树，该树为只读树。
/// </summary>
/// <param name="treeFileName">指定树文件的文件名</param>
/// <param name="blockFileName">指定块文件的文件名</param>
/// <returns>B+树</returns>
public static BPlusTree OpenReadOnly(string treeFileName, string blockFileName)
{
BPlusTreeBytes tree = BPlusTreeBytes.OpenReadOnly(treeFileName, blockFileName);
return(new BPlusTree(tree));
}
/// <summary>
/// 从文件打开B+树
/// </summary>
/// <param name="treeFileStream">指定树文件的文件流</param>
/// <param name="blockFileStream">指定块文件的文件流</param>
/// <returns>B+树</returns>
public static BPlusTree Open(Stream treeFileStream, Stream blockFileStream)
{
BPlusTreeBytes tree = BPlusTreeBytes.Open(treeFileStream, blockFileStream);
return(new BPlusTree(tree));
}