// Inherit interface docs.
@Override
public TableInfo openTable(String tableName) throws IOException {
TableInfo tableInfo;
// If the table is already open, just return the cached information.
tableInfo = openTables.get(tableName);
if (tableInfo != null) return tableInfo;
// Open the data file for the table; read out its type and page-size.
String tblFileName = getTableFileName(tableName);
TupleFile tupleFile = storageManager.openTupleFile(tblFileName);
tableInfo = new TableInfo(tableName, tupleFile);
// Cache this table since it's now considered "open".
openTables.put(tableName, tableInfo);
return tableInfo;
}
