icu::UnicodeFunctor Class Reference

UnicodeFunctor is an abstract base class for objects that perform match and/or replace operations on Unicode strings. More...

#include <unifunct.h>

Inheritance diagram for icu::UnicodeFunctor:

Public Member Functions
virtual	~UnicodeFunctor ()
	Destructor.
virtual UnicodeFunctor *	clone () const =0
	Return a copy of this object.
virtual UnicodeMatcher *	toMatcher () const
	Cast 'this' to a UnicodeMatcher* pointer and return the pointer, or null if this is not a UnicodeMatcher*.
virtual UnicodeReplacer *	toReplacer () const
	Cast 'this' to a UnicodeReplacer* pointer and return the pointer, or null if this is not a UnicodeReplacer*.
virtual UClassID	getDynamicClassID () const override=0
	Returns a unique class ID polymorphically.
virtual void	setData (const TransliterationRuleData *)=0
	Set the data object associated with this functor.
Public Member Functions inherited from icu::UObject
virtual	~UObject ()
	Destructor.

Static Public Member Functions
static UClassID	getStaticClassID ()
	Return the class ID for this class.

Detailed Description

UnicodeFunctor is an abstract base class for objects that perform match and/or replace operations on Unicode strings.

Author

Alan Liu

Stable:

ICU 2.4

Definition at line 38 of file unifunct.h.

Constructor & Destructor Documentation

~UnicodeFunctor()

virtual icu::UnicodeFunctor::~UnicodeFunctor ( )

virtual

Destructor.

Stable:

ICU 2.4

Member Function Documentation

clone()

virtual UnicodeFunctor * icu::UnicodeFunctor::clone ( ) const

pure virtual

Return a copy of this object.

All UnicodeFunctor objects have to support cloning in order to allow classes using UnicodeFunctor to implement cloning.

Stable:

ICU 2.4

Implemented in icu::UnicodeSet, and icu::UnicodeFilter.

getDynamicClassID()

virtual UClassID icu::UnicodeFunctor::getDynamicClassID ( ) const

overridepure virtual

Returns a unique class ID polymorphically.

This method is to implement a simple version of RTTI, since not all C++ compilers support genuine RTTI. Polymorphic operator==() and clone() methods call this method.

Concrete subclasses of UnicodeFunctor should use the macro UOBJECT_DEFINE_RTTI_IMPLEMENTATION from uobject.h to provide definitions getStaticClassID and getDynamicClassID.

Returns

The class ID for this object. All objects of a given class have the same class ID. Objects of other classes have different class IDs.

Stable:

ICU 2.4

Reimplemented from icu::UObject.

Implemented in icu::UnicodeSet.

getStaticClassID()

static UClassID icu::UnicodeFunctor::getStaticClassID ( )

static

Return the class ID for this class.

This is useful only for comparing to a return value from getDynamicClassID().

Returns

The class ID for all objects of this class.

Stable:

ICU 2.0

setData()

virtual void icu::UnicodeFunctor::setData ( const TransliterationRuleData *  )

pure virtual

Set the data object associated with this functor.

The data object provides context for functor-to-standin mapping. This method is required when assigning a functor to a different data object. This function MAY GO AWAY later if the architecture is changed to pass data object pointers through the API.

Internal:

Do not use. This API is for internal use only. ICU 2.1

Implemented in icu::UnicodeFilter.

toMatcher()

virtual UnicodeMatcher * icu::UnicodeFunctor::toMatcher ( ) const

virtual

Cast 'this' to a UnicodeMatcher* pointer and return the pointer, or null if this is not a UnicodeMatcher*.

Subclasses that mix in UnicodeMatcher as a base class must override this. This protocol is required because a pointer to a UnicodeFunctor cannot be cast to a pointer to a UnicodeMatcher, since UnicodeMatcher is a mixin that does not derive from UnicodeFunctor.

Stable:

ICU 2.4

Reimplemented in icu::UnicodeFilter.

toReplacer()

virtual UnicodeReplacer * icu::UnicodeFunctor::toReplacer ( ) const

virtual

Cast 'this' to a UnicodeReplacer* pointer and return the pointer, or null if this is not a UnicodeReplacer*.

Subclasses that mix in UnicodeReplacer as a base class must override this. This protocol is required because a pointer to a UnicodeFunctor cannot be cast to a pointer to a UnicodeReplacer, since UnicodeReplacer is a mixin that does not derive from UnicodeFunctor.

Stable:

ICU 2.4

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The documentation for this class was generated from the following file:

• common/unicode/unifunct.h