Package io.permazen.util

Class ConvertedSet<E,W>

java.lang.Object

java.util.AbstractCollection<E>

java.util.AbstractSet<E>

io.permazen.util.AbstractIterationSet<E>

io.permazen.util.ConvertedSet<E,W>

Type Parameters:

E - element type of this set

W - element type of the wrapped set

All Implemented Interfaces:

Iterable<E>, Collection<E>, Set<E>

public class ConvertedSet<E,W>
extends AbstractIterationSet<E>

Provides a transformed view of a wrapped Set using a strictly invertable Converter.

Constructor Summary

Constructors

Constructor	Description
ConvertedSet(Set<W> set, Converter<E,W> converter)	Constructor.

Method Summary

Modifier and Type	Method	Description
boolean	add(E obj)
void	clear()
boolean	contains(Object obj)
Converter<E,W>	getConverter()	Get the Converter associated with this instance.
Set<W>	getWrappedSet()	Get the wrapped Set.
boolean	isEmpty()	Overridden in AbstractIterationSet to minimize the use of AbstractIterationSet.size().
CloseableIterator<E>	iterator()
boolean	remove(Object obj)
int	size()	Calculate size.
Stream<E>	stream()

Methods inherited from class io.permazen.util.AbstractIterationSet

buildSpliterator, equals, hashCode, spliterator, toArray, toArray

Methods inherited from class java.util.AbstractSet

removeAll

Methods inherited from class java.util.AbstractCollection

addAll, containsAll, retainAll, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Collection

parallelStream, removeIf, toArray

Methods inherited from interface java.lang.Iterable

forEach

Methods inherited from interface java.util.Set

addAll, containsAll, retainAll

Constructor Details

ConvertedSet

public ConvertedSet(Set<W> set,
 Converter<E,W> converter)

Constructor.

Parameters:

set - wrapped set

converter - element converter

Throws:

IllegalArgumentException - if any parameter is null

Method Details

getWrappedSet

public Set<W> getWrappedSet()

Get the wrapped Set.

Returns:

the wrapped Set.

getConverter

public Converter<E,W> getConverter()

Get the Converter associated with this instance.

Returns:

associated Converter

contains

public boolean contains(Object obj)

Specified by:

contains in interface Collection<E>

Specified by:

contains in interface Set<E>

Overrides:

contains in class AbstractCollection<E>

iterator

public CloseableIterator<E> iterator()

Specified by:

iterator in interface Collection<E>

Specified by:

iterator in interface Iterable<E>

Specified by:

iterator in interface Set<E>

Specified by:

iterator in class AbstractIterationSet<E>

stream

public Stream<E> stream()

Description copied from class: AbstractIterationSet

The implementation in AbstractIterationSet build a stream from the results from AbstractIterationSet.iterator() and buildSpliterator(), and marks the iterator for close via Stream.onClose().

Specified by:

stream in interface Collection<E>

Overrides:

stream in class AbstractIterationSet<E>

add

public boolean add(E obj)

Specified by:

add in interface Collection<E>

Specified by:

add in interface Set<E>

Overrides:

add in class AbstractCollection<E>

remove

public boolean remove(Object obj)

Specified by:

remove in interface Collection<E>

Specified by:

remove in interface Set<E>

Overrides:

remove in class AbstractCollection<E>

clear

public void clear()

Specified by:

clear in interface Collection<E>

Specified by:

clear in interface Set<E>

Overrides:

clear in class AbstractCollection<E>

isEmpty

public boolean isEmpty()

Description copied from class: AbstractIterationSet

Overridden in AbstractIterationSet to minimize the use of AbstractIterationSet.size().

Specified by:

isEmpty in interface Collection<E>

Specified by:

isEmpty in interface Set<E>

Overrides:

isEmpty in class AbstractIterationSet<E>

size

public int size()

Description copied from class: AbstractIterationSet

Calculate size.

The implementation in AbstractIterationSet iterates through all of the elements.

Specified by:

size in interface Collection<E>

Specified by:

size in interface Set<E>

Overrides:

size in class AbstractIterationSet<E>