//----------------------------------------
CAliasesDictionary::CAliasesDictionary(const std::string& filename, const std::string &encoding)
{
// Don't call CXmlDocument(filename, encoding) because overriden 'Load' will not be called
Init();
m_fullFileName = filename;
try
{
Load(filename, encoding);
}
catch(CException& e)
{
DeleteRoot();
throw e;
}
catch(std::exception& e)
{
DeleteRoot();
throw e;
}
catch(...)
{
DeleteRoot();
throw CException("Error in CAliasesDictionary ctor - Unexpected error while loading the aliases dictionary - No Context and no message have been set for this error", BRATHL_ERROR);
}
}
// destructor
BTree::~BTree() {
if (file_ != NULL) {
char* header = new char[file_->block_length()];
WriteRootToBuffer(header);
file_->SetHeader(header);
delete[] header;
delete file_;
file_ = NULL;
}
DeleteRoot();
}
// -------------------------------------------------------------------------
// Init a new b-tree
void BTree::Init(char* file_name, int block_length) {
file_ = new BlockFile(file_name, block_length);
// -------------------------------------------------------------------------
// Init the first node: to store <blocklength> (page size of a node),
// <number> (number of nodes including both index node and leaf node),
// and <root> (address of root node)
// -------------------------------------------------------------------------
root_ptr_ = new BNode();
root_ptr_->Init(0, this);
root_block_ = root_ptr_->block();
DeleteRoot();
}
