111 lines
3.6 KiB
C++
111 lines
3.6 KiB
C++
/*
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**********************************************************************
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* Copyright (C) 1999-2000 IBM Corp. All rights reserved.
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**********************************************************************
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* Date Name Description
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* 12/1/99 rgillam Complete port from Java.
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* 01/13/2000 helena Added UErrorCode to ctors.
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**********************************************************************
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*/
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#ifndef DBBI_TBL_H
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#define DBBI_TBL_H
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#include "unicode/utypes.h"
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#include "unicode/uobject.h"
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#include "unicode/udata.h"
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#include "brkdict.h"
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U_NAMESPACE_BEGIN
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/* forward declaration */
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class DictionaryBasedBreakIterator;
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//
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// DictionaryBasedBreakIteratorTables
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//
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// This class sits between instances of DictionaryBasedBreakIterator
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// and the dictionary data itself, which is of type BreakDictionary.
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// It provides reference counting, allowing multiple copies of a
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// DictionaryBasedBreakIterator to share a single instance of
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// BreakDictionary.
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//
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// TODO: it'd probably be cleaner to add the reference counting to
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// BreakDictionary and get rid of this class, but doing it this way
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// was a convenient transition from earlier code, and time is short...
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//
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class DictionaryBasedBreakIteratorTables : public UObject {
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private:
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int32_t fRefCount;
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public:
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//=======================================================================
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// constructor
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//=======================================================================
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/* @param dictionaryFilename The name of the dictionary file
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* @param status The error code
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* @return the newly created DictionaryBasedBreakIteratorTables
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**/
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DictionaryBasedBreakIteratorTables(const char* dictionaryFilename,
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UErrorCode& status);
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BreakDictionary *fDictionary;
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void addReference();
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void removeReference();
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/**
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* Destructor. Should not be used directly. Use removeReference() istead.
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* (Not private to avoid compiler warnings.)
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*/
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virtual ~DictionaryBasedBreakIteratorTables();
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/**
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* ICU "poor man's RTTI", returns a UClassID for the actual class.
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*
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* @draft ICU 2.2
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*/
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virtual inline UClassID getDynamicClassID() const { return getStaticClassID(); }
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/**
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* ICU "poor man's RTTI", returns a UClassID for this class.
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*
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* @draft ICU 2.2
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*/
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static inline UClassID getStaticClassID() { return (UClassID)&fgClassID; }
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private:
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/**
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* The copy constructor is declared private and not implemented.
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* THIS CLASS MAY NOT BE COPIED.
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* @param that The DictionaryBasedBreakIteratorTables to be copied.
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* @return the newly constructed DictionaryBasedBreakIteratorTables.
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*/
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DictionaryBasedBreakIteratorTables(const DictionaryBasedBreakIteratorTables& that);
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//=======================================================================
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// boilerplate
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//=======================================================================
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/**
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* The assignment operator is declared private and not implemented.
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* THIS CLASS MAY NOT BE COPIED.
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* Call addReference() and share an existing copy instead.
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* @that The object to be copied
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* @return the newly created DictionaryBasedBreakIteratorTables.
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*/
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DictionaryBasedBreakIteratorTables& operator=(
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const DictionaryBasedBreakIteratorTables& that);
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/**
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* The address of this static class variable serves as this class's ID
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* for ICU "poor man's RTTI".
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*/
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static const char fgClassID;
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};
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U_NAMESPACE_END
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#endif
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