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

H

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

Displays an unrecoverable error and halts the system.

HashBucket - Class in index

A bucket is a linked list of SortedPages (overflow pages).

HashBucket() - Constructor for class index.HashBucket

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.

HashJoin - Class in relop

Implements the hash-based join algorithm described in section 14.4.3 of the textbook (3rd edition; see pages 463 to 464).

HashJoin(Iterator, Iterator, Integer, Integer) - Constructor for class relop.HashJoin

Constructs a hash join, given the left and right iterators and which columns to match (relative to their individual schemas).

HashScan - Class in index

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

HashScan(HashIndex, SearchKey) - Constructor for class index.HashScan

Constructs an equality scan by initializing the iterator state.

HashTableDup - Class in relop

A extension to Java's hash table that allows duplicate keys.

HashTableDup() - Constructor for class relop.HashTableDup

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.HashJoin

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.

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.

HeapScan(HeapFile) - Constructor for class heap.HeapScan

Constructs a file scan by pinning the directoy header page and initializing iterator fields.

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.

HFTest - Class in tests

Test suite for the heap layer.

HFTest() - Constructor for class tests.HFTest

HFTest.DummyRecord - Class in tests

Used in fixed-length record test cases.

HFTest.DummyRecord() - Constructor for class tests.HFTest.DummyRecord

Constructs with default values.

HFTest.DummyRecord(byte[]) - Constructor for class tests.HFTest.DummyRecord

Constructs from a byte array.