External Interface

The class LinearHashingFile is used to create/open a linear hashing index, destroy the index, insert records to the index and delete records from the index. The class LinearHashingScan is used to open an exact match scan on a linear hashing index. The scan can be used to get the next record and delete the current record.

• LinearHashingFile
  • LinearHashingFile(Status& status, const char* name, const int length,const AttrType type, const int N = 1)
    LinearHashingFile(Status& status, const char * name)
  • ~LinearHashingFile()
  • Status destroyFile(void)
  • Status insert(const void* value, const RID rid)
  • Status Delete(const void* value, const RID rid)
  • IndexFileScan * new_scan(const void* value)
  • void PrintHeader()
    void PrintBucket()
    void PrintBucket(int BucNum)
    
• LinearHashingScan
  • ~LinearHashingScan()
  • Status get_next(RID& rid)
  • Status delete_current()
• Downward interfaces