grinda.impl.tuplespace
Class HashContainer

java.lang.Object
  grinda.impl.tuplespace.HashContainer

All Implemented Interfaces:

TupleContainer

public class HashContainer
extends java.lang.Object
implements TupleContainer

A tuple container implementd with an Hashtables

Author:

Sirio Capizzi

Constructor Summary

HashContainer(InternalTuple absoluteTemplate)
Creates a new HashContainer that will store tuples with the given absolute template

Method Summary

void	add(InternalTuple t) Adds an InternalTuple to the container
InternalTuple	getAbsoluteTemplate()
boolean	isEmpty() Checks if the container is empty
InternalTuple	lookup(InternalTuple pattern) Looks up a tuples that match the given template using the associative matching
InternalTuple[]	lookupAll(InternalTuple pattern) Looks up all the tuples that match the given template using the associative matching
InternalTuple	remove(InternalTuple pattern) Removes a the tuple that match the given template using the associative matching
InternalTuple[]	removeAll(InternalTuple pattern) Removes all the tuples that match the given template using the associative matching
int	size() Gets the number of tuple stored
java.util.Collection	tuples() Gets a collection of all the tuple stored

Methods inherited from class java.lang.Object

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

Constructor Detail

HashContainer

public HashContainer(InternalTuple absoluteTemplate)

Creates a new HashContainer that will store tuples with the given absolute template

Parameters:

absoluteTemplate - the template

Method Detail

add

public void add(InternalTuple t)

Adds an InternalTuple to the container

Specified by:

add in interface TupleContainer

Parameters:

t - the tuple

lookupAll

public InternalTuple[] lookupAll(InternalTuple pattern)

Looks up all the tuples that match the given template using the associative matching

Specified by:

lookupAll in interface TupleContainer

Parameters:

pattern - the template

Returns:

the matching tuples or null if there are nones

lookup

public InternalTuple lookup(InternalTuple pattern)

Looks up a tuples that match the given template using the associative matching

Specified by:

lookup in interface TupleContainer

Parameters:

pattern - the template

Returns:

a tuples found or null if there is none

remove

public InternalTuple remove(InternalTuple pattern)

Removes a the tuple that match the given template using the associative matching

Specified by:

remove in interface TupleContainer

Parameters:

pattern - the template

Returns:

the tuple removed or null if there are none

removeAll

public InternalTuple[] removeAll(InternalTuple pattern)

Removes all the tuples that match the given template using the associative matching

Specified by:

removeAll in interface TupleContainer

Parameters:

pattern - the template

Returns:

the tuples removed or null if there are nones

size

public int size()

Gets the number of tuple stored

Specified by:

size in interface TupleContainer

Returns:

the size

isEmpty

public boolean isEmpty()

Checks if the container is empty

Specified by:

isEmpty in interface TupleContainer

Returns:

true if it is empty false otherwise

tuples

public java.util.Collection tuples()

Gets a collection of all the tuple stored

Specified by:

tuples in interface TupleContainer

Returns:

tuples

getAbsoluteTemplate

public InternalTuple getAbsoluteTemplate()