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UObject Class Reference

UObject is the common ICU "boilerplate" class. More...

#include <uobject.h>

Inheritance diagram for UObject:

UMemory BreakIterator Calendar CanonicalIterator CollationElementIterator CollationKey Collator CollatorFactory DateFormatSymbols DecimalFormatSymbols FieldPosition Format Formattable ForwardCharacterIterator ICULayoutEngine Locale Normalizer NumberFormatFactory ParsePosition RegexMatcher RegexPattern Replaceable ResourceBundle SearchIterator StringEnumeration TimeZone Transliterator UnicodeFunctor UnicodeSetIterator

Public Member Functions

virtual ~UObject ()
 Destructor.
virtual UClassID getDynamicClassID () const =0
 ICU4C "poor man's RTTI", returns a UClassID for the actual ICU class.

Detailed Description

UObject is the common ICU "boilerplate" class.

UObject inherits UMemory (starting with ICU 2.4), and all other public ICU C++ classes are derived from UObject (starting with ICU 2.2).

UObject contains common virtual functions like for ICU's "poor man's RTTI". It does not contain default implementations of virtual methods like getDynamicClassID to allow derived classes such as Format to declare these as pure virtual.

The clone() function is not available in UObject because it is not implemented by all ICU classes. Many ICU services provide a clone() function for their class trees, defined on the service's C++ base class, and all subclasses within that service class tree return a pointer to the service base class (which itself is a subclass of UObject). This is because some compilers do not support covariant (same-as-this) return types; cast to the appropriate subclass if necessary.

ICU 2.2


Constructor & Destructor Documentation

virtual UObject::~UObject  )  [virtual]
 

Destructor.

ICU 2.2


Member Function Documentation

virtual UClassID UObject::getDynamicClassID  )  const [pure virtual]
 

ICU4C "poor man's RTTI", returns a UClassID for the actual ICU class.

ICU 2.2

Implemented in BreakIterator, CanonicalIterator, ForwardCharacterIterator, DictionaryBasedBreakIterator, Locale, Normalizer, ParsePosition, RuleBasedBreakIterator, ResourceBundle, StringCharacterIterator, UCharCharacterIterator, UnicodeFilter, UnicodeFunctor, UnicodeSet, UnicodeString, UnicodeSetIterator, Calendar, ChoiceFormat, CollationElementIterator, Collator, DecimalFormatSymbols, DecimalFormat, DateFormatSymbols, FieldPosition, Formattable, Format, GregorianCalendar, MessageFormat, NumberFormat, RuleBasedNumberFormat, RegexPattern, RegexMatcher, SimpleTimeZone, SimpleDateFormat, CollationKey, StringSearch, RuleBasedCollator, TimeZone, Transliterator, and ICULayoutEngine.


The documentation for this class was generated from the following file:
Generated on Wed May 18 17:29:19 2005 for ICU 2.8 by  doxygen 1.4.2