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/*
**********************************************************************
* Copyright (c) 2002-2006, International Business Machines
* Corporation and others. All Rights Reserved.
**********************************************************************
* Author: Alan Liu
* Created: November 11 2002
* Since: ICU 2.4
**********************************************************************
*/
#ifndef _USTRENUM_H_
#define _USTRENUM_H_
#include "unicode/uenum.h"
#include "unicode/strenum.h"
/**
* Given a StringEnumeration, wrap it in a UEnumeration. The
* StringEnumeration is adopted; after this call, the caller must not
* delete it (regardless of error status).
*/
U_CAPI UEnumeration* U_EXPORT2
uenum_openStringEnumeration(U_NAMESPACE_QUALIFIER StringEnumeration* adopted, UErrorCode* ec);
/**
* Given an array of const char* strings (invariant chars only),
* return a UEnumeration. Must have strings[i] != 0 for i in
* 0..count-1.
*/
U_CAPI UEnumeration* U_EXPORT2
uenum_openCharStringsEnumeration(const char** strings, int32_t count,
UErrorCode* ec);
//----------------------------------------------------------------------
U_NAMESPACE_BEGIN
/**
* A wrapper to make a UEnumeration into a StringEnumeration. The
* wrapper adopts the UEnumeration is wraps.
*/
class U_COMMON_API UStringEnumeration : public StringEnumeration {
public:
/**
* Constructor. This constructor adopts its UEnumeration
* argument.
* @param uenum a UEnumeration object. This object takes
* ownership of 'uenum' and will close it in its destructor. The
* caller must not call uenum_close on 'uenum' after calling this
* constructor.
*/
UStringEnumeration(UEnumeration* uenum);
/**
* Destructor. This closes the UEnumeration passed in to the
* constructor.
*/
virtual ~UStringEnumeration();
/**
* Return the number of elements that the iterator traverses.
* @param status the error code.
* @return number of elements in the iterator.
*/
virtual int32_t count(UErrorCode& status) const;
/**
* Returns the next element a UnicodeString*. If there are no
* more elements, returns NULL.
* @param status the error code.
* @return a pointer to the string, or NULL.
*/
virtual const UnicodeString* snext(UErrorCode& status);
/**
* Resets the iterator.
* @param status the error code.
*/
virtual void reset(UErrorCode& status);
/**
* ICU4C "poor man's RTTI", returns a UClassID for the actual ICU class.
*/
virtual UClassID getDynamicClassID() const;
/**
* ICU4C "poor man's RTTI", returns a UClassID for this ICU class.
*/
static UClassID U_EXPORT2 getStaticClassID();
private:
UEnumeration *uenum; // owned
};
U_NAMESPACE_END
#endif
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