org.deri.iris.basics
Class Tuple

java.lang.Object
  java.util.AbstractCollection<E>
      java.util.AbstractList<ITerm>
          org.deri.iris.basics.Tuple

All Implemented Interfaces:

Comparable<ITuple>, Iterable<ITerm>, Collection<ITerm>, List<ITerm>, ITuple

public class Tuple
extends AbstractList<ITerm>
implements ITuple

A simple tuple implementation. This implementation is thread-safe.

$Id: Tuple.java,v 1.20 2007-11-07 16:14:44 nathaliest Exp $

Version:

$Revision: 1.20 $

Author:

Darko Anicic, DERI Innsbruck, Richard P??ttler (richard dot poettler at deri dot at)

Field Summary

Fields inherited from class java.util.AbstractList

modCount

Method Summary

ITuple	append(Collection<? extends ITerm> t) Creates a new tupel with the tuples of this one and appends the tuples of the submitted list at the end.
int	compareTo(ITuple t)
boolean	equals(Object o)
ITerm	get(int i)
List<IVariable>	getAllVariables() Returns all variables from this tupple.
Set<IVariable>	getVariables() Returns all distinct variables from this tupple.
boolean	isGround() Checks whether this tuple contains only ground terms.
int	size()
String	toString()

Methods inherited from class java.util.AbstractList

add, add, addAll, clear, hashCode, indexOf, iterator, lastIndexOf, listIterator, listIterator, remove, removeRange, set, subList

Methods inherited from class java.util.AbstractCollection

addAll, contains, containsAll, isEmpty, remove, removeAll, retainAll, toArray, toArray

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.List

add, add, addAll, addAll, clear, contains, containsAll, hashCode, indexOf, isEmpty, iterator, lastIndexOf, listIterator, listIterator, remove, remove, removeAll, retainAll, set, subList, toArray, toArray

Method Detail

size

public int size()

Specified by:

size in interface Collection<ITerm>

Specified by:

size in interface List<ITerm>

Specified by:

size in class AbstractCollection<ITerm>

get

public ITerm get(int i)

Specified by:

get in interface List<ITerm>

Specified by:

get in class AbstractList<ITerm>

append

public ITuple append(Collection<? extends ITerm> t)

Description copied from interface: ITuple

Creates a new tupel with the tuples of this one and appends the tuples of the submitted list at the end.

Specified by:

append in interface ITuple

Parameters:

t - the tuples to add

Returns:

the newly created tuple

isGround

public boolean isGround()

Description copied from interface: ITuple

Checks whether this tuple contains only ground terms.

Specified by:

isGround in interface ITuple

Returns:

true if all terms of this tuple are grounded; false otherwise.

toString

public String toString()

Overrides:

toString in class AbstractCollection<ITerm>

compareTo

public int compareTo(ITuple t)

Specified by:

compareTo in interface Comparable<ITuple>

equals

public boolean equals(Object o)

Specified by:

equals in interface Collection<ITerm>

Specified by:

equals in interface List<ITerm>

Overrides:

equals in class AbstractList<ITerm>

getVariables

public Set<IVariable> getVariables()

Description copied from interface: ITuple

Returns all distinct variables from this tupple.

Specified by:

getVariables in interface ITuple

Returns:

All distinct variables from this tupple.

getAllVariables

public List<IVariable> getAllVariables()

Description copied from interface: ITuple

Returns all variables from this tupple.

Specified by:

getAllVariables in interface ITuple

Returns:

All variables from this tupple.