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com.tangosol.util
Class ConverterCollections.ConverterEntrySet

java.lang.Object
com.tangosol.util.Base
com.tangosol.util.ConverterCollections.ConverterEntrySet

All Implemented Interfaces:

Serializable, Iterable, Collection, Set

Enclosing class:

ConverterCollections

public static class ConverterCollections.ConverterEntrySet

extends Base

implements Set, Serializable

A Converter Entry Set views an underlying Entry Set through a set of key and value Converters.

Nested Class Summary

protected class	ConverterCollections.ConverterEntrySet.ConverterEntry A Map Entry that lazily converts the key and value.
protected class	ConverterCollections.ConverterEntrySet.ConverterIterator A Map Entry Iterator that converts the key and value types.

Field Summary

protected Converter	m_convKeyDown The Converter used to pass keys down to the Entry Set.
protected Converter	m_convKeyUp The Converter used to view keys stored in the Entry Set.
protected Converter	m_convValDown The Converter used to pass values down to the Entry Set.
protected Converter	m_convValUp The Converter used to view values stored in the Entry Set.
protected Collection	m_set The underlying Entry Set (or Collection of Map Entry objects).

Constructor Summary

ConverterCollections.ConverterEntrySet(Collection set, Converter convKeyUp, Converter convKeyDown, Converter convValUp, Converter convValDown)
Constructor.

Method Summary

boolean	add(Object o) Ensures that this Collection contains the specified element.
boolean	addAll(Collection col) Adds all of the elements in the specified Collection to this Collection (optional operation).
void	clear() Removes all of the elements from this Collection.
boolean	contains(Object o) Returns true if this Collection contains the specified element.
boolean	containsAll(Collection col) Returns true if this Collection contains all of the elements in the specified Collection.
boolean	equals(Object o) Compares the specified object with this collection for equality.
Converter	getConverterKeyDown() Return the Converter used to pass keys down to the underlying Entry Set.
Converter	getConverterKeyUp() Return the Converter used to view the underlying Entry Set's keys through.
Converter	getConverterValueDown() Return the Converter used to pass values down to the underlying Entry Set.
Converter	getConverterValueUp() Return the Converter used to view the underlying Entry Set's values through.
Collection	getEntrySet() Return the underlying Entry Set.
protected Set	instantiateEntrySet(Collection col, Converter convKeyUp, Converter convKeyDown, Converter convValUp, Converter convValDown) Create a Converter Entry Set.
boolean	isEmpty() Returns true if this Collection contains no elements.
Iterator	iterator() Returns an Iterator over the elements contained in this Collection.
boolean	remove(Object o) Removes a single instance of the specified element from this Collection, if it is present (optional operation).
boolean	removeAll(Collection col) Removes all this Collection's elements that are also contained in the specified Collection (optional operation).
boolean	retainAll(Collection col) Retains only the elements in this Collection that are contained in the specified Collection (optional operation).
int	size() Returns the number of elements in this Collection.
Object[]	toArray() Returns an array containing all of the elements in this Collection.
Object[]	toArray(Object[] ao) Returns an array containing all of the elements in this Collection whose runtime type is that of the specified array.
String	toString() Return a String description for this collection.
protected Map.Entry	wrapEntry(Map.Entry entry) Wrap an Entry from the Entry Set to make a Converter Entry.
protected Iterator	wrapIterator(Iterator iter) Wrap an Iterator from the Entry Set to make a Converter Iterator.

Methods inherited from interface java.util.Set

hashCode

Field Detail

m_set

protected Collection m_set

The underlying Entry Set (or Collection of Map Entry objects).

m_convKeyUp

protected Converter m_convKeyUp

The Converter used to view keys stored in the Entry Set.

m_convKeyDown

protected Converter m_convKeyDown

The Converter used to pass keys down to the Entry Set.

m_convValUp

protected Converter m_convValUp

The Converter used to view values stored in the Entry Set.

m_convValDown

protected Converter m_convValDown

The Converter used to pass values down to the Entry Set.

Constructor Detail

ConverterCollections.ConverterEntrySet

public ConverterCollections.ConverterEntrySet(Collection set,
                                              Converter convKeyUp,
                                              Converter convKeyDown,
                                              Converter convValUp,
                                              Converter convValDown)

Constructor.

Parameters:

set - the underlying Entry Set (or Collection of Map Entry objects)

convKeyUp - the Converter to view the underlying Entry Set's keys through

convKeyDown - the Converter to use to pass keys down to the underlying Entry Set

convValUp - the Converter to view the underlying Entry Set's values through

convValDown - the Converter to use to pass values down to the underlying Entry Set

Method Detail

size

public int size()

Returns the number of elements in this Collection.

Specified by:

size in interface Collection

Specified by:

size in interface Set

Returns:

the number of elements in this Collection

isEmpty

public boolean isEmpty()

Returns true if this Collection contains no elements.

Specified by:

isEmpty in interface Collection

Specified by:

isEmpty in interface Set

Returns:

true if this Collection contains no elements

contains

public boolean contains(Object o)

Returns true if this Collection contains the specified element. More formally, returns true if and only if this Collection contains at least one element e such that (o==null ? e==null : o.equals(e)).

Specified by:

contains in interface Collection

Specified by:

contains in interface Set

Parameters:

o - the object to search for in the Collection

Returns:

true if this Collection contains the specified object

iterator

public Iterator iterator()

Returns an Iterator over the elements contained in this Collection.

Specified by:

iterator in interface Iterable

Specified by:

iterator in interface Collection

Specified by:

iterator in interface Set

Returns:

an Iterator over the elements contained in this Collection

toArray

public Object[] toArray()

Returns an array containing all of the elements in this Collection. Obeys the general contract of Collection.toArray.

Specified by:

toArray in interface Collection

Specified by:

toArray in interface Set

Returns:

an array, whose component type is the class of objects that may be stored in the Collection containing all of the elements in this Collection

toArray

public Object[] toArray(Object[] ao)

Returns an array containing all of the elements in this Collection whose runtime type is that of the specified array. Obeys the general contract of Collection.toArray.

Specified by:

toArray in interface Collection

Specified by:

toArray in interface Set

Parameters:

ao - the array into which the elements of this Collection are to be stored, if it is big enough; otherwise, a new array of the same runtime type is allocated for this purpose

Returns:

an array containing the elements of this Collection

add

public boolean add(Object o)

Ensures that this Collection contains the specified element.

Specified by:

add in interface Collection

Specified by:

add in interface Set

Parameters:

o - element whose presence in this Collection is to be ensured

Returns:

true if the Collection changed as a result of the call

remove

public boolean remove(Object o)

Removes a single instance of the specified element from this Collection, if it is present (optional operation). More formally, removes an element e such that (o==null ? e==null : o.equals(e)), if the Collection contains one or more such elements. Returns true if the Collection contained the specified element (or equivalently, if the Collection changed as a result of the call).

Specified by:

remove in interface Collection

Specified by:

remove in interface Set

Parameters:

o - element to be removed from this Collection, if present

Returns:

true if the Collection contained the specified element

containsAll

public boolean containsAll(Collection col)

Returns true if this Collection contains all of the elements in the specified Collection.

Specified by:

containsAll in interface Collection

Specified by:

containsAll in interface Set

Parameters:

col - Collection to be checked for containment in this Collection

Returns:

true if this Collection contains all of the elements in the specified Collection

See Also:

Collection.contains(Object)

addAll

public boolean addAll(Collection col)

Adds all of the elements in the specified Collection to this Collection (optional operation). The behavior of this operation is undefined if the specified Collection is modified while the operation is in progress. (This implies that the behavior of this call is undefined if the specified Collection is this Collection, and this Collection is nonempty.)

Specified by:

addAll in interface Collection

Specified by:

addAll in interface Set

Parameters:

col - elements to be inserted into this Collection

Returns:

true if this Collection changed as a result of the call

See Also:

Collection.add(Object)

removeAll

public boolean removeAll(Collection col)

Removes all this Collection's elements that are also contained in the specified Collection (optional operation). After this call returns, this Collection will contain no elements in common with the specified Collection.

Specified by:

removeAll in interface Collection

Specified by:

removeAll in interface Set

Parameters:

col - elements to be removed from this Collection

Returns:

true if this Collection changed as a result of the call

See Also:

Collection.remove(Object), Collection.contains(Object)

retainAll

public boolean retainAll(Collection col)

Retains only the elements in this Collection that are contained in the specified Collection (optional operation). In other words, removes from this Collection all of its elements that are not contained in the specified Collection.

Specified by:

retainAll in interface Collection

Specified by:

retainAll in interface Set

Parameters:

col - elements to be retained in this Collection

Returns:

true if this Collection changed as a result of the call

See Also:

Collection.remove(Object), Collection.contains(Object)

clear

public void clear()

Removes all of the elements from this Collection.

Specified by:

clear in interface Collection

Specified by:

clear in interface Set

equals

public boolean equals(Object o)

Compares the specified object with this collection for equality.

Obeys the general contract of Collection.equals.

Specified by:

equals in interface Collection

Specified by:

equals in interface Set

Parameters:

o - Object to be compared for equality with this Collection

Returns:

true if the specified object is equal to this Collection

See Also:

Object.equals(Object), Set.equals(Object), List.equals(Object)

toString

public String toString()

Return a String description for this collection.

Returns:

a String description of the Collection

instantiateEntrySet

protected Set instantiateEntrySet(Collection col,
                                  Converter convKeyUp,
                                  Converter convKeyDown,
                                  Converter convValUp,
                                  Converter convValDown)

Create a Converter Entry Set.

Parameters:

col - the underlying Collection of Map Entry objects

convKeyUp - the Converter to view the underlying Map's Entry Set's keys through

convKeyDown - the Converter to use to pass keys down to the underlying Map's Entry Set

convValUp - the Converter to view the underlying Map's Entry Set's values through

convValDown - the Converter to use to pass values down to the underlying Map's Entry Set

Returns:

a Converter Entry Set

wrapEntry

protected Map.Entry wrapEntry(Map.Entry entry)

Wrap an Entry from the Entry Set to make a Converter Entry.

Parameters:

entry - a Map Entry to wrap

Returns:

a Map Entry that restricts its type

wrapIterator

protected Iterator wrapIterator(Iterator iter)

Wrap an Iterator from the Entry Set to make a Converter Iterator.

Parameters:

iter - a Iterator to wrap

Returns:

a Converter Iterator

getEntrySet

public Collection getEntrySet()

Return the underlying Entry Set.

Returns:

the underlying Entry Set

getConverterKeyUp

public Converter getConverterKeyUp()

Return the Converter used to view the underlying Entry Set's keys through.

Returns:

the Converter from the underlying Entry Set's keys

getConverterKeyDown

public Converter getConverterKeyDown()

Return the Converter used to pass keys down to the underlying Entry Set.

Returns:

the Converter to the underlying Entry Set's keys

getConverterValueUp

public Converter getConverterValueUp()

Return the Converter used to view the underlying Entry Set's values through.

Returns:

the Converter from the underlying Entry Set's values

getConverterValueDown

public Converter getConverterValueDown()

Return the Converter used to pass values down to the underlying Entry Set.

Returns:

the Converter to the underlying Entry Set's values

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