A B C D E F G H I J K L M N O P R S T U V W

H

haltSystem(Exception) - Static method in class global.Minibase

Displays an unrecoverable error and halts the system.

hashCode() - Method in class global.PageId

Returns a hash code value for the PageId.

hashCode() - Method in class global.RID

Returns a hash code value for the RID.

hashCode() - Method in class global.SearchKey

Returns a generic hash code for the key value.

HashIndex - Class in index

Minibase Hash Index

HashIndex(String) - Constructor for class index.HashIndex

Opens an index file given its name, or creates a new index file if the name doesn't exist; a null name produces a temporary index file which requires no disk manager entry.

HashScan - Class in index

A HashScan object is created only through the function openScan() in the HashIndex class.

hasNext() - Method in class heap.HeapScan

Returns true if there are more records to scan, false otherwise.

hasNext(RID) - Method in class heap.HFPage

Returns true if the iteration has more elements.

hasNext() - Method in class index.BucketScan

Returns true if there are more entries to scan, false otherwise.

hasNext() - Method in class index.HashScan

Returns true if there are more entries to scan, false otherwise.

hasNext() - Method in class relop.FileScan

Returns true if there are more tuples, false otherwise.

hasNext() - Method in class relop.IndexScan

Returns true if there are more tuples, false otherwise.

hasNext() - Method in class relop.Iterator

Returns true if there are more tuples, false otherwise.

hasNext() - Method in class relop.KeyScan

Returns true if there are more tuples, false otherwise.

hasNext() - Method in class relop.Projection

Returns true if there are more tuples, false otherwise.

hasNext() - Method in class relop.Selection

Returns true if there are more tuples, false otherwise.

hasNext() - Method in class relop.SimpleJoin

Returns true if there are more tuples, false otherwise.

HEADER_SIZE - Static variable in class heap.HFPage

Total size of the header fields.

heap - package heap

HeapFile - Class in heap

Minibase Heap Files

HeapFile(String) - Constructor for class heap.HeapFile

If the given name already denotes a file, this opens it; otherwise, this creates a new empty file.

HeapScan - Class in heap

A HeapScan object is created only through the function openScan() in the HeapFile class.

HFPage - Class in heap

Heap file data pages are implemented as slotted pages, with the slots at the front and the records in the back, both growing into the free space in the middle of the page.

HFPage() - Constructor for class heap.HFPage

Default constructor; creates a heap file page with default values.

HFPage(Page) - Constructor for class heap.HFPage

Constructor that wraps an existing heap file page.