Reads objects encoded in a compact format from the supplied RWDataInputStream. More...

#include <rw/serial/RWCompactObjectInputStreamImp.h>

Inheritance diagram for RWCompactObjectInputStreamImp:

Public Member Functions
virtual void	endBlock ()

virtual void *	getNewObject (const std::type_info *base)

virtual void	getString (RWCString &str)

virtual void	getUString (RWBasicUString &str)

virtual void	getWString (RWWString &str)

virtual RWSymbol	readTypeInfo ()

virtual void	rememberObject (const void *obj)

virtual RWSymbol	startBlock ()

virtual RWSymbol	startMap (int &count, RWStreamType &keyType, RWStreamType &valueType)

virtual bool	startMember (RWSymbol &memberName, RWStreamType &memberType)

virtual RWSymbol	startSequence (int &count, RWStreamType &elementType)

Public Member Functions inherited from RWObjectInputStreamImp
virtual void	closeContext (bool readContext=true)

virtual void	endAssoc ()

virtual void	endElement ()

virtual void	endMap ()

virtual void	endMember ()

virtual void	endParent ()

virtual void	endSequence ()

virtual void	getChar (char &value)

virtual void	getCharacter (char &value)

virtual void	getSymbol (RWSymbol &value)

virtual void	openContext (bool readContext=true)

virtual void	peekChar (char &value)

virtual void	peekCharacter (char &value)

virtual void	startAssocKey ()

virtual void	startAssocValue ()

virtual void	startElement (int &)

virtual void	startParent (const RWSymbol &)

Public Member Functions inherited from RWFilteredDataInputStreamImp
virtual	~RWFilteredDataInputStreamImp ()

virtual RWSize	available () const

virtual void	close ()

virtual void	getBool (bool &value)

virtual RWSize	getBools (bool *arrayPt, RWSize count)

virtual RWSize	getChars (char *arrayPt, RWSize count)

virtual RWSize	getDelimitedString (char *string, RWSize maxCount, char delim)

virtual RWSize	getDelimitedUString (RWUChar *ustring, RWSize maxCount, RWUChar delim)

virtual RWSize	getDelimitedWString (wchar_t *wstring, RWSize maxCount, wchar_t delim)

virtual void	getDouble (double &value)

virtual RWSize	getDoubles (double *arrayPt, RWSize count)

virtual void	getFloat (float &value)

virtual RWSize	getFloats (float *arrayPt, RWSize count)

virtual void	getInt (int &value)

virtual RWSize	getInts (int *arrayPt, RWSize count)

virtual void	getLong (long &value)

virtual void	getLongDouble (long double &value)

virtual RWSize	getLongDoubles (long double *arrayPt, RWSize count)

virtual void	getLongLong (long long &value)

virtual RWSize	getLongLongs (long long *arrayPt, RWSize count)

virtual RWSize	getLongs (long *arrayPt, RWSize count)

virtual void	getShort (short &value)

virtual RWSize	getShorts (short *arrayPt, RWSize count)

virtual void	getSignedChar (signed char &value)

virtual RWSize	getSignedChars (signed char *arrayPt, RWSize count)

virtual void	getSizeT (size_t &value)

virtual void	getUCharacter (RWUChar &value)

virtual void	getUnsignedChar (unsigned char &value)

virtual RWSize	getUnsignedChars (unsigned char *arrayPt, RWSize count)

virtual void	getUnsignedInt (unsigned int &value)

virtual RWSize	getUnsignedInts (unsigned int *arrayPt, RWSize count)

virtual void	getUnsignedLong (unsigned long &value)

virtual void	getUnsignedLongLong (unsigned long long &value)

virtual RWSize	getUnsignedLongLongs (unsigned long long *arrayPt, RWSize count)

virtual RWSize	getUnsignedLongs (unsigned long *arrayPt, RWSize count)

virtual void	getUnsignedShort (unsigned short &value)

virtual RWSize	getUnsignedShorts (unsigned short *arrayPt, RWSize count)

virtual void	getWchar_t (wchar_t &value)

virtual RWSize	getWchar_ts (wchar_t *arrayPt, RWSize count)

virtual void	getWCharacter (wchar_t &value)

virtual bool	isBad () const

virtual bool	isEof () const

virtual bool	isFail () const

virtual bool	isGood () const

virtual RWSize	skip (RWSize numUnits)

Public Member Functions inherited from RWDataInputStreamImp
virtual	~RWDataInputStreamImp ()

Public Member Functions inherited from RWInputStreamImp
virtual	~RWInputStreamImp ()

Public Member Functions inherited from RWStreamImp
virtual	~RWStreamImp ()

Static Public Member Functions
static RWObjectInputStream	make (const RWDataInputStream &source, bool annotateStream=false)

Protected Member Functions
	RWCompactObjectInputStreamImp (const RWDataInputStream &sourceStream, bool annotateStream)

virtual void	closeOuterContext (bool readContext)

virtual RWSize	getString (char *string, RWSize count)

virtual RWSize	getUString (RWUChar *ustring, RWSize count)

virtual RWSize	getWString (wchar_t *wstring, RWSize count)

virtual void	openOuterContext (bool readContext)

Protected Member Functions inherited from RWObjectInputStreamImp
	RWObjectInputStreamImp (const RWDataInputStream &sourceStream)

Protected Member Functions inherited from RWFilteredDataInputStreamImp
	RWFilteredDataInputStreamImp (const RWDataInputStream &sourceStream)

RWDataInputStream &	getSourceStream ()

const RWDataInputStream &	getSourceStream () const

Protected Member Functions inherited from RWDataInputStreamImp
	RWDataInputStreamImp ()

Protected Member Functions inherited from RWInputStreamImp
	RWInputStreamImp ()

Protected Member Functions inherited from RWStreamImp
	RWStreamImp ()

Protected Member Functions inherited from RWBodyBase
	RWBodyBase (void)

	RWBodyBase (RWStaticCtor)

	RWBodyBase (const RWBodyBase &second)

virtual	~RWBodyBase (void)

RWBodyBase &	operator= (const RWBodyBase &second)

Protected Member Functions inherited from RWTCountingBody< RWMutexLock >
	RWTCountingBody (unsigned initCount=0)

	RWTCountingBody (RWStaticCtor)

	RWTCountingBody (const RWTCountingBody< RWMutexLock > &second)

RWTCountingBody< RWMutexLock > &	operator= (const RWTCountingBody< RWMutexLock > &second)

	~RWTCountingBody (void)

unsigned	addReference (void)

unsigned	references (void) const

unsigned	removeReference (void)

Protected Member Functions inherited from RWTMonitor< RWMutexLock >
	RWTMonitor ()

	RWTMonitor (RWStaticCtor)

	RWTMonitor (const RWTMonitor< RWMutexLock > &second)

	~RWTMonitor ()

void	acquire ()

bool	isAcquired () const

RWTMonitor< RWMutexLock > &	monitor () const

RWMutexLock &	mutex ()

RWTMonitor< RWMutexLock > &	operator= (const RWTMonitor< RWMutexLock > &)

void	release ()

bool	tryAcquire ()

Additional Inherited Members
Protected Types inherited from RWTCountingBody< RWMutexLock >
typedef RWTLockGuard< RWTMonitor< RWMutexLock > >	LockGuard

typedef RWTTryLockGuard< RWTMonitor< RWMutexLock > >	TryLockGuard

typedef RWTUnlockGuard< RWTMonitor< RWMutexLock > >	UnlockGuard

Protected Types inherited from RWTMonitor< RWMutexLock >
typedef RWTLockGuard< RWTMonitor< RWMutexLock > >	LockGuard

typedef RWTTryLockGuard< RWTMonitor< RWMutexLock > >	TryLockGuard

typedef RWTUnlockGuard< RWTMonitor< RWMutexLock > >	UnlockGuard

Detailed Description

The class RWCompactObjectInputStreamImp reads objects encoded in a compact format from the supplied RWDataInputStream. The format of this stream resembles that produced when RWCollectable instances are persisted using RW virtual streams. Implements the body idiom from the handle/body pattern. The stream can optionally be annotated with member (attribute) name and type information to support generic parsing.

Example: // Open an fstream to serve as our source.

ifstream s("foo.dat");

// Create a portable stream using the fstream.

RWpistream pstrm(s);

// Create a compact data stream using the portable stream.

RWObjectInputStream in = RWCompactObjectInputStreamImp::make(

RWDataFromVirtualInputStreamImp::make(pstrm));

// Read integer from compact data stream

int i;

in >> i;

Constructor & Destructor Documentation

RWCompactObjectInputStreamImp::RWCompactObjectInputStreamImp	(	const RWDataInputStream &	sourceStream,
		bool	annotateStream
	)

inlineprotected

Used by derived classes to initialize the next processing stream. Throws no exceptions.

Parameters

sourceStream	Serves as a handle to the previous processing stream.
annotateStream	Indicates whether the stream is annotated.

Member Function Documentation

virtual void RWCompactObjectInputStreamImp::closeOuterContext ( bool readContext )

protectedvirtual

Really closes an open context, called when closeContext() calls match the number of openContext() calls.

Implements RWObjectInputStreamImp.

virtual void RWCompactObjectInputStreamImp::endBlock ( )

virtual

Inputs tokens that identify the end of an object.

Implements RWObjectInputStreamImp.

virtual void* RWCompactObjectInputStreamImp::getNewObject ( const std::type_info * base )

virtual

Reads the dynamic type information (derived class) from the input stream, and factories an instance of this type.

Parameters

base	Represents the static type (base class) of the field being read.

Implements RWObjectInputStreamImp.

virtual void RWCompactObjectInputStreamImp::getString ( RWCString & value )

virtual

Reads an RWCString value from the stream.

Parameters

value The RWCString value to be read from the stream.

Implements RWObjectInputStreamImp.

virtual RWSize RWCompactObjectInputStreamImp::getString	(	char *	string,
		RWSize	count
	)

inlineprotectedvirtual

Forward the reading of a string of narrow characters from the attached source stream. The function returns the number of narrow characters read.

Parameters

string	A pointer to the first element of the string. The string must have been pre-allocated to contain at least count narrow characters.
count	The number of narrow character(s) to be read from the stream.

Reimplemented from RWObjectInputStreamImp.

virtual void RWCompactObjectInputStreamImp::getUString ( RWBasicUString & value )

virtual

Reads an RWBasicUString value from the stream.

Parameters

value The RWBasicUString value to be read from the stream.

Implements RWObjectInputStreamImp.

virtual RWSize RWCompactObjectInputStreamImp::getUString	(	RWUChar *	ustring,
		RWSize	count
	)

inlineprotectedvirtual

Forward the reading of a string of UTF-16 characters from the attached source stream. The function returns the number of UTF-16 characters read.

Parameters

ustring	A pointer to the first element of the string. The string must have been pre-allocated to contain at least count unicode characters.
count	The number of unicode character(s) to be read from the stream.

Reimplemented from RWObjectInputStreamImp.

virtual void RWCompactObjectInputStreamImp::getWString ( RWWString & value )

virtual

Reads an RWWString value from the stream.

Parameters

value The RWWString value to be read from the stream.

Implements RWObjectInputStreamImp.

virtual RWSize RWCompactObjectInputStreamImp::getWString	(	wchar_t *	wstring,
		RWSize	count
	)

inlineprotectedvirtual

Forward the reading of a string of wide characters from the attached source stream. The function returns the number of wide characters read.

Parameters

wstring	A pointer to the first element of the string. The string must have been pre-allocated to contain at least count wide characters.
count	The number of wide character(s) to be read from the stream.

Reimplemented from RWObjectInputStreamImp.

static RWObjectInputStream RWCompactObjectInputStreamImp::make	(	const RWDataInputStream &	source,
		bool	annotateStream = `false`
	)

static

Constructs an RWCompactObjectInputStreamImp instance that uses source as its source of bytes, and returns a handle to it. Throws no exceptions.

Parameters

source	The data stream used as the source of bytes.
annotateStream	Indicates whether the stream is annotated.

virtual void RWCompactObjectInputStreamImp::openOuterContext ( bool readContext )

protectedvirtual

Really opens a new context, called by openContext() when a context is not already open.

Implements RWObjectInputStreamImp.

virtual RWSymbol RWCompactObjectInputStreamImp::readTypeInfo ( )

virtual

Reads the type information for an class instance from the stream and returns it as a symbol.

Implements RWObjectInputStreamImp.

virtual void RWCompactObjectInputStreamImp::rememberObject ( const void * obj )

virtual

Called by streaming operators to record each instance streamed in, in case it is referenced again in the same context.

Implements RWObjectInputStreamImp.

virtual RWSymbol RWCompactObjectInputStreamImp::startBlock ( )

virtual

Inputs tokens that identify the start of a new object. Returns an RWSymbol representing the new object. Depending on the implementation class associated with this handle, the RWSymbol may be empty.

Implements RWObjectInputStreamImp.

virtual RWSymbol RWCompactObjectInputStreamImp::startMap	(	int &	count,
		RWStreamType &	keyType,
		RWStreamType &	valueType
	)

virtual

Called by the input operators for association types (hash tables, etc.) at the start of a sequence. Returns an RWSymbol representing the collection.

Parameters

count	Contains the number of items in the association.
keyType	Contains the type of key in the association.
valueType	Contains the type of value in the association.

Implements RWObjectInputStreamImp.

virtual bool RWCompactObjectInputStreamImp::startMember	(	RWSymbol &	memberName,
		RWStreamType &	memberType
	)

virtual

Called for before each data member by the streamContents() function, metadata about the field may or may not be read from the stream depending on the implementation. If data is read (returning true), then parameter memberName will contain the name of the member. Otherwise returns false.

Implements RWObjectInputStreamImp.

virtual RWSymbol RWCompactObjectInputStreamImp::startSequence	(	int &	count,
		RWStreamType &	elementType
	)

virtual

Called by the input operators for collection types at the start of a sequence. Returns an RWSymbol representing the collection.

Parameters

count	Contains the number of items in the collection.
elementType	Contains the type of element in the collection.

Implements RWObjectInputStreamImp.

SourcePro® API Reference Guide

Public Member Functions

Static Public Member Functions

Protected Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation