public void CreateView(string viewName, string viewDefinition, Transaction transaction)
{
var tableInfo = _tableManager.GetTableInfo(_viewTableName, transaction);
var recordFile = new RecordFile(tableInfo, transaction);
recordFile.Insert();
recordFile.SetString("viewname", viewName);
recordFile.SetString("viewdef", viewDefinition);
recordFile.Close();
}
public IndexManager(
bool isNew,
ITableManager tableManager,
IStatisticsManager statisticsManager,
Transaction transaction,
string indexTableName = "idxcat",
int blockSize = 1024)
{
_indexTableName = indexTableName;
_blockSize = blockSize;
_tableManager = tableManager;
_statisticsManager = statisticsManager;
if (isNew)
{
var schema = new Schema();
schema.AddStringField("idxname", MAX_INDEX_LENGTH);
schema.AddStringField("tblname", MAX_INDEX_LENGTH);
schema.AddStringField("fldname", MAX_INDEX_LENGTH);
tableManager.CreateTable(_indexTableName, schema, transaction);
}
_tableInfo = tableManager.GetTableInfo(indexTableName, transaction);
}
private void RefreshStatistics(Transaction transaction)
{
_tableStats.Clear();
_callsNumber = 0;
var tableCatalogInfo = _tableManager.GetTableInfo(_tableCatalogName, transaction);
var recordFile = new RecordFile(tableCatalogInfo, transaction);
while (recordFile.Next())
{
var tableName = recordFile.GetString("tblname");
_ = RefreshTableStatistics(tableName, transaction);
}
}
public IndexInfo(string indexName,
string tableName,
string fieldName,
ITableManager tableManager,
IStatisticsManager statisticsManager,
Transaction transaction,
int blockSize = 1024)
{
_indexName = indexName;
_fieldName = fieldName;
_transaction = transaction;
_blockSize = blockSize;
_tableInfo = tableManager.GetTableInfo(tableName, transaction);
_statInfo = statisticsManager.GetStatisticalInfo(tableName, transaction);
}
public TableInfo GetTableInfo(string tableName, Transaction transaction)
{
return(_tableManager.GetTableInfo(tableName, transaction));
}