alice.respect
Class TupleSetImpl

java.lang.Object
  |
  +--alice.respect.TupleSetImpl

All Implemented Interfaces:

java.io.Serializable, TupleSet

public class TupleSetImpl

extends java.lang.Object

implements TupleSet

Naive implementation of the TupleSet interface, defining the behaviour of the component managin tuple storage.

See Also:

Serialized Form

Constructor Summary

TupleSetImpl()

Method Summary

void	add(Tuple t) Adds a tuple to the multiset
void	beginTransaction() Begins a transaction section Every operation on multiset can be undone
void	empty() Empties the multiset
void	endTransaction(boolean commit) Ends a transaction section specifying if operations must be committed or undone
java.util.Iterator	getIterator() Gets an iterator to navigate through tuples of the multiset
Tuple	getMatchingTuple(TupleTemplate templ) Gets (and removes) non-deterministically a tuple of the multiset matching the template specified
boolean	hasMatchingTuple(TupleTemplate templ) Checks if exists a tuple inside the tuple set matching the template
boolean	isEmpty() Tests if the multiset is empty
Tuple	readMatchingTuple(TupleTemplate templ) Gets (wtihout removal) non-deterministically a tuple of the multiset matching the template specified
int	size() Gets the number of tuples inside the multiset
void	sub(Tuple t) Removes a tuple to the multiset
java.lang.Object[]	toArray()

Methods inherited from class java.lang.Object

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

Constructor Detail

TupleSetImpl

public TupleSetImpl()

Method Detail

add

public void add(Tuple t)

Description copied from interface: TupleSet

Adds a tuple to the multiset

Specified by:

add in interface TupleSet

Following copied from interface: alice.tuplemedium.TupleSet

Parameters:

t - the tuple to be added

sub

public void sub(Tuple t)

Description copied from interface: TupleSet

Removes a tuple to the multiset

Specified by:

sub in interface TupleSet

Following copied from interface: alice.tuplemedium.TupleSet

Parameters:

t - the tuple to be removed

isEmpty

public boolean isEmpty()

Description copied from interface: TupleSet

Tests if the multiset is empty

Specified by:

isEmpty in interface TupleSet

size

public int size()

Description copied from interface: TupleSet

Gets the number of tuples inside the multiset

Specified by:

size in interface TupleSet

beginTransaction

public void beginTransaction()

Description copied from interface: TupleSet

Begins a transaction section Every operation on multiset can be undone

Specified by:

beginTransaction in interface TupleSet

endTransaction

public void endTransaction(boolean commit)

Description copied from interface: TupleSet

Ends a transaction section specifying if operations must be committed or undone

Specified by:

endTransaction in interface TupleSet

Following copied from interface: alice.tuplemedium.TupleSet

Parameters:

commit - if true the operations are committed, else they are undone and the multiset is rolled back to the state before the beginTransaction invocation

empty

public void empty()

Description copied from interface: TupleSet

Empties the multiset

Specified by:

empty in interface TupleSet

getMatchingTuple

public Tuple getMatchingTuple(TupleTemplate templ)

Description copied from interface: TupleSet

Gets (and removes) non-deterministically a tuple of the multiset matching the template specified

Specified by:

getMatchingTuple in interface TupleSet

Following copied from interface: alice.tuplemedium.TupleSet

Parameters:

t - the tuple template to be used for the matching

Returns:

a tuple matching the template or null if no tuples found

readMatchingTuple

public Tuple readMatchingTuple(TupleTemplate templ)

Description copied from interface: TupleSet

Gets (wtihout removal) non-deterministically a tuple of the multiset matching the template specified

Specified by:

readMatchingTuple in interface TupleSet

Following copied from interface: alice.tuplemedium.TupleSet

Parameters:

t - the tuple template to be used for the matching

Returns:

a tuple matching the template or null if no tuples found

hasMatchingTuple

public boolean hasMatchingTuple(TupleTemplate templ)

Description copied from interface: TupleSet

Checks if exists a tuple inside the tuple set matching the template

Specified by:

hasMatchingTuple in interface TupleSet

Following copied from interface: alice.tuplemedium.TupleSet

Parameters:

t - the tuple template to be used for the matching

Returns:

true if a masching is found, false otherwise

getIterator

public java.util.Iterator getIterator()

Description copied from interface: TupleSet

Gets an iterator to navigate through tuples of the multiset

Specified by:

getIterator in interface TupleSet

Following copied from interface: alice.tuplemedium.TupleSet

Returns:

the iterator

toArray

public java.lang.Object[] toArray()