RWOrdered Class Reference

Represents a group of ordered items, accessible by an index number, but not accessible by an external key. More...

#include <rw/ordcltn.h>

Inheritance diagram for RWOrdered:

Public Member Functions
	RWOrdered ()
	RWOrdered (const RWOrdered &o)
	RWOrdered (RWOrdered &&o)
	RWOrdered (size_t size)
virtual RWCollectable *	append (RWCollectable *a)
virtual void	apply (RWapplyCollectable ap, void *x)
virtual RWCollectable *&	at (size_t i)
virtual const RWCollectable *	at (size_t i) const
virtual void	clear ()
virtual RWCollectable *	copy () const
virtual size_t	entries () const
virtual RWCollectable *	find (const RWCollectable *target) const
virtual RWCollectable *	first () const
virtual size_t	index (const RWCollectable *c) const
virtual RWCollectable *	insert (RWCollectable *c)
virtual RWCollectable *	insertAt (size_t indx, RWCollectable *e)
virtual RWClassID	isA () const
virtual bool	isEmpty () const
virtual bool	isEqual (const RWCollectable *a) const
virtual RWCollectable *	last () const
virtual size_t	newCapacity (size_t) const
virtual RWConstIterator *	newConstIterator () const
virtual RWIterator *	newIterator ()
virtual RWCollectable *	newSpecies () const
virtual size_t	occurrencesOf (const RWCollectable *target) const
RWCollectable *&	operator() (size_t i)
RWOrdered &	operator= (const RWOrdered &o)
RWOrdered &	operator= (RWOrdered &&o)
bool	operator== (const RWOrdered &od) const
RWCollectable *&	operator[] (size_t i)
RWCollectable *	pop ()
virtual RWCollectable *	prepend (RWCollectable *c)
void	push (RWCollectable *c)
virtual RWCollectable *	remove (const RWCollectable *target)
RWCollectable *	removeAt (size_t index)
void	swap (RWOrdered &o)
RWCollectable *	top () const
Public Member Functions inherited from RWCollection
virtual	~RWCollection ()
RWBag	asBag () const
RWBinaryTree	asBinaryTree () const
RWOrdered	asOrderedCollection () const
RWSet	asSet () const
RWBinaryTree	asSortedCollection () const
virtual RWspace	binaryStoreSize () const
virtual void	clearAndDestroy ()
virtual bool	contains (const RWCollectable *target) const
void	operator+= (const RWCollection &c)
void	operator-= (const RWCollection &c)
virtual void	removeAndDestroy (const RWCollectable *target)
virtual void	restoreGuts (RWFile &)
virtual void	restoreGuts (RWvistream &)
virtual void	saveGuts (RWFile &) const
virtual void	saveGuts (RWvostream &) const
RWCollection *	select (RWtestCollectable tst, void *vp) const
Public Member Functions inherited from RWCollectable
virtual	~RWCollectable ()
virtual int	compareTo (const RWCollectable *) const
virtual unsigned	hash () const
RWspace	recursiveStoreSize () const
RWStringID	stringID () const

Friends
class	RWOrderedConstIterator
class	RWOrderedIterator

Additional Inherited Members
Static Public Member Functions inherited from RWCollectable
static RWClassID	classID (const RWStringID &name)
static RWClassID	classIsA ()
static bool	isAtom (RWClassID id)
static RWspace	nilStoreSize ()
Static Public Attributes inherited from RWCollection
static size_t	DEFAULT_CAPACITY
Related Symbols inherited from RWCollection
typedef void(*	RWapplyCollectable) (RWCollectable *, void *)
typedef bool(*	RWtestCollectable) (const RWCollectable *, const void *)
typedef bool(*	RWtestCollectablePair) (const RWCollectable *, const RWCollectable *, const void *)

Detailed Description

Class RWOrdered represents a group of ordered items, accessible by an index number, but not accessible by an external key. Duplicates are allowed. The ordering of elements is determined externally, generally by the order of insertion and removal. An object stored by RWOrdered must inherit from the abstract base class RWCollectable.

Class RWOrdered is implemented as a vector of pointers, allowing for more efficient traversing of the collection than the linked list classes RWSlistCollectables and RWDlistCollectables, but with slower insertion in the center of the collection.

Synopsis

#include <rw/ordcltn.h>
RWOrdered a;

Persistence

Polymorphic

Constructor & Destructor Documentation

RWOrdered() [1/4]

RWOrdered::RWOrdered

(

)

Constructs an RWOrdered with an initial capacity of RWCollection::DEFAULT_CAPACITY.

RWOrdered() [2/4]

RWOrdered::RWOrdered

(

size_t

size

)

Constructs an RWOrdered with an initial capacity of size.

RWOrdered() [3/4]

RWOrdered::RWOrdered

(

const RWOrdered &

o

)

Copy constructor. Makes a shallow copy of o.

RWOrdered() [4/4]

RWOrdered::RWOrdered

(

RWOrdered &&

o

)

Move constructor. The constructed RWOrdered takes ownership of the data owned by o.

Condition:

This method is available only on platforms with rvalue reference support.

Member Function Documentation

append()

virtual RWCollectable * RWOrdered::append ( RWCollectable * a )

virtual

Adds a to the end of the collection and returns it. Returns rwnil if the insertion was unsuccessful.

Implements RWSequenceable.

Reimplemented in RWSortedVector.

apply()

virtual void RWOrdered::apply ( RWapplyCollectable ap, void * x )

virtual

Invokes the function pointer ap on each item in the collection, in order, from first to last.

Implements RWSequenceable.

at() [1/2]

virtual RWCollectable *& RWOrdered::at ( size_t i )

virtual

Allows access to the i ^th element of the collection. The return value can be used as an lvalue. The index i must be between zero and the number of items in the collection less one, or the function throws an exception of type RWBoundsErr.

Implements RWSequenceable.

Reimplemented in RWSortedVector.

at() [2/2]

virtual const RWCollectable * RWOrdered::at ( size_t i ) const

virtual

Allows access to the i ^th element of the collection. The return value cannot be used as an lvalue. The index i must be between zero and the number of items in the collection less one, or an exception of type RWBoundsErr will be thrown.

Implements RWSequenceable.

Reimplemented in RWSortedVector.

clear()

virtual void RWOrdered::clear ( )

virtual

Removes all objects from the collection. Does not delete the objects themselves.

Implements RWSequenceable.

copy()

virtual RWCollectable * RWOrdered::copy ( ) const

virtual

Returns a new, copy-constructed object of the same type as self. The caller is responsible for deleting the object.

Reimplemented from RWCollectable.

Reimplemented in RWSortedVector.

entries()

virtual size_t RWOrdered::entries ( ) const

inlinevirtual

Returns the total number of items in the collection.

Implements RWSequenceable.

find()

virtual RWCollectable * RWOrdered::find ( const RWCollectable * target ) const

virtual

Returns the first item that isEqual() to the item pointed to by target, or rwnil if no item was found.

Implements RWSequenceable.

first()

virtual RWCollectable * RWOrdered::first ( ) const

virtual

Returns the first item in the collection.

Implements RWSequenceable.

index()

virtual size_t RWOrdered::index ( const RWCollectable * c ) const

virtual

Returns the index number of the first item that "matches" the item pointed to by c. If there is no such item, returns RW_NPOS. For most collections, an item "matches" the target if either isEqual() or compareTo() find equivalence, whichever is appropriate for the actual collection type.

Implements RWSequenceable.

Reimplemented in RWSortedVector.

insert()

virtual RWCollectable * RWOrdered::insert ( RWCollectable * c )

virtual

Adds the item to the end of the collection and returns it. Returns rwnil if the insertion was unsuccessful.

Implements RWSequenceable.

Reimplemented in RWSortedVector.

insertAt()

virtual RWCollectable * RWOrdered::insertAt ( size_t indx, RWCollectable * e )

virtual

Adds a new item to the collection at position indx. The item previously at position i is moved to i+1, etc. The index indx must be between 0 and the number of items in the collection, or an exception of type RWBoundsErr will be thrown.

Implements RWSequenceable.

Reimplemented in RWSortedVector.

isA()

virtual RWClassID RWOrdered::isA ( ) const

virtual

Returns __RWORDERED.

Reimplemented from RWCollection.

Reimplemented in RWSortedVector.

isEmpty()

virtual bool RWOrdered::isEmpty ( ) const

inlinevirtual

Returns true if the collection is empty, otherwise returns false.

Implements RWSequenceable.

isEqual()

virtual bool RWOrdered::isEqual ( const RWCollectable * t ) const

virtual

Behaves as if compareTo(t) was invoked, returning true if the result equals 0, false otherwise.

Reimplemented from RWCollectable.

Reimplemented in RWSortedVector.

last()

virtual RWCollectable * RWOrdered::last ( ) const

virtual

Returns the last item in the collection.

Implements RWSequenceable.

newCapacity()

virtual size_t RWOrdered::newCapacity ( size_t ) const

virtual

Called by resize() to determine the new container capacity. The default implementation resizes the container in fixed increments. By overriding this method in derived classes, users may alter the resizing policy of the RWOrdered based containers.

newConstIterator()

virtual RWConstIterator * RWOrdered::newConstIterator ( ) const

virtual

Returns a const pointer to a dynamically allocated iterator for the collection.

Implements RWCollection.

newIterator()

virtual RWIterator * RWOrdered::newIterator ( )

virtual

Returns a dynamically allocated iterator for the collection.

Implements RWCollection.

newSpecies()

virtual RWCollectable * RWOrdered::newSpecies ( ) const

virtual

Returns a new, default-constructed object of the same type as self. The caller is responsible for deleting the object.

Reimplemented from RWCollectable.

Reimplemented in RWSortedVector.

occurrencesOf()

virtual size_t RWOrdered::occurrencesOf ( const RWCollectable * target ) const

virtual

Returns the number of items that compare isEqual() to the item pointed to by target.

Implements RWSequenceable.

Reimplemented in RWSortedVector.

operator()()

RWCollectable *& RWOrdered::operator() ( size_t i )

inline

Returns the i ^th element in the collection. Bounds checking is enabled by defining the preprocessor directive RWBOUNDS_CHECK before including the header file ordcltn.h. In this case, if i is out of range, the function throws an exception of type RWBoundsErr. The results of this function can be used as an lvalue.

operator=() [1/2]

RWOrdered & RWOrdered::operator=

(

const RWOrdered &

o

)

Assignment operator. Makes a shallow copy of o.

operator=() [2/2]

RWOrdered & RWOrdered::operator=

(

RWOrdered &&

o

)

Move assignment. Self takes ownership of the data owned by o.

Condition:

This method is available only on platforms with rvalue reference support.

operator==()

bool RWOrdered::operator==

(

const RWOrdered &

od

)

const

Returns true if for every item in self, the corresponding item in od at the same index isEqual(). The two collections must also have the same number of members.

operator[]()

RWCollectable *& RWOrdered::operator[] ( size_t i )

inline

Returns the i ^th element in the collection. If i is out of range, the function throws an exception of type RWBoundsErr. The results of this function can be used as an lvalue.

pop()

RWCollectable * RWOrdered::pop ( )

inline

This is an alternative implementation of a stack to class RWSlistCollectablesStack. The last item in the collection is removed and returned. If there are no items in the collection, rwnil is returned.

prepend()

virtual RWCollectable * RWOrdered::prepend ( RWCollectable * c )

virtual

Adds c to the beginning of the collection and returns it. Returns rwnil if the insertion was unsuccessful.

Implements RWSequenceable.

Reimplemented in RWSortedVector.

push()

void RWOrdered::push ( RWCollectable * c )

inline

This is an alternative implementation of a stack to class RWSlistCollectablesStack. The item pointed to by c is put at the end of the collection.

remove()

virtual RWCollectable * RWOrdered::remove ( const RWCollectable * target )

virtual

Removes the first item that isEqual() to the item pointed to by target and returns it. Returns rwnil if no item was found.

Implements RWSequenceable.

removeAt()

RWCollectable * RWOrdered::removeAt

(

size_t

index

)

Removes the item at the position index in the collection and returns it.

swap()

void RWOrdered::swap

(

RWOrdered &

o

)

Swaps the data owned by self with the data owned by o.

top()

RWCollectable * RWOrdered::top ( ) const

inline

This is an alternative implementation of a stack to class RWSlistCollectablesStack. The last item in the collection is returned. If there are no items in the collection, rwnil is returned.