Package ca.uqac.lif.cep.tuples

Class Tuple

java.lang.Object

ca.uqac.lif.cep.tuples.Tuple

All Implemented Interfaces:

ca.uqac.lif.cep.Duplicable, Map<String,Object>

Direct Known Subclasses:

TupleFixed, TupleMap

public abstract class Tuple
extends Object
implements ca.uqac.lif.cep.Duplicable, Map<String,Object>

A (named) tuple is a map between attribute names (character strings) and attribute values (any kind of Object). This class is a generalization of the classical concept of "tuple" in relational databases (where attributes can only have scalar values).

There are two direct descendents of the Tuple class:

• TupleMap: the most general implementation of a tuple; this is basically a Map object with a few extra methods
• TupleFixed: a fixed tuple assumes stronger hypotheses on its use in order to reduce memory usage and decrease response time.

Author:

Sylvain Hallé

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final class	Tuple.MapEntry<K,V>	Simple implementation of the Map interface

Nested classes/interfaces inherited from interface java.util.Map

Map.Entry<K,V>

Constructor Summary

Constructors

Constructor	Description
Tuple()

Method Summary

Modifier and Type	Method	Description
final Tuple	duplicate()
abstract Tuple	duplicate(boolean with_state)

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Map

clear, compute, computeIfAbsent, computeIfPresent, containsKey, containsValue, entrySet, equals, forEach, get, getOrDefault, hashCode, isEmpty, keySet, merge, put, putAll, putIfAbsent, remove, remove, replace, replace, replaceAll, size, values

Constructor Details

Tuple

public Tuple()

Method Details

duplicate

public final Tuple duplicate()

Specified by:

duplicate in interface ca.uqac.lif.cep.Duplicable

duplicate

public abstract Tuple duplicate(boolean with_state)

Specified by:

duplicate in interface ca.uqac.lif.cep.Duplicable