Module org.apache.jena.core

Package org.apache.jena.mem

Class HashCommon<Key>

java.lang.Object

org.apache.jena.mem.HashCommon<Key>

Direct Known Subclasses:

HashedBunchMap, HashedTripleBunch

public abstract class HashCommon<Key>
extends Object

Shared stuff for our hashing implementations: does the base work for hashing and growth sizes.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	HashCommon.NotifyEmpty	A hashed structure may become empty as a side-effect of a .remove on one of its iterators: a container can request notification of this by passing a NotifyEmpty object in when the iterator is constructed, and its emptied method is called when the bunch becomes empty.

Field Summary

Fields

Modifier and Type	Field	Description
int	capacity	The capacity (length) of the key array.

Method Summary

Modifier and Type	Method	Description
Object	getItemForTestingAt(int i)	Answer the item at index i of keys.
ExtendedIterator<Key>	keyIterator()
ExtendedIterator<Key>	keyIterator(HashCommon.NotifyEmpty container)
void	remove(Key key)	Remove the object key from this hash's keys if it is present (if it's absent, do nothing).

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

capacity

public int capacity

The capacity (length) of the key array.

Method Details

getItemForTestingAt

public Object getItemForTestingAt(int i)

Answer the item at index i of keys. This method is for testing purposes only.

remove

public void remove(Key key)

Remove the object key from this hash's keys if it is present (if it's absent, do nothing). If a key is removed, the removeAssociatedValues will be invoked. If a key is moved, the moveAssociatedValues method will be called.

keyIterator

public ExtendedIterator<Key> keyIterator()

keyIterator

public ExtendedIterator<Key> keyIterator(HashCommon.NotifyEmpty container)