Constructs an XML input stream that applies a generic transformation to the XML document before reading it from the source. More...

#include <rw/xmlstreams/RWTTransformObjectInputStreamImp.h>

Inheritance diagram for RWTTransformObjectInputStreamImp< Transform >:

Static Public Member Functions
static RWObjectInputStream	make (std::istream &source, Transform transformer, bool escape=true)

static RWObjectInputStream	make (std::istream &source, Transform transformer, std::ios *&formatter, bool escape=true)

Static Public Member Functions inherited from RWXmlObjectInputStreamImp
static RWObjectInputStream	make (RWDataInputStream &source, bool escape=true)

static RWObjectInputStream	make (std::istream &source, bool escape=true)

static RWObjectInputStream	make (std::istream &source, std::ios *&formatter, bool escape=true)

Static Public Member Functions inherited from RWXmlObjectStreamCommon
static const char *	rwStreamToLocalStringType (RWStreamType stype)

static const char *	rwStreamToStringType (RWStreamType stype)

Protected Member Functions
	RWTTransformObjectInputStreamImp (std::istream &istr, Transform transformer, bool escape)

	RWTTransformObjectInputStreamImp (std::istream &istr, Transform transformer, std::ios *&formatter, bool escape)

Protected Member Functions inherited from RWXmlObjectInputStreamImp
	RWXmlObjectInputStreamImp (const RWDataInputStream &sourceStream, bool escape)

	RWXmlObjectInputStreamImp (std::istream &sourceStream, bool escape)

	RWXmlObjectInputStreamImp (std::istream &sourceStream, std::ios *&formatter, bool escape)

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 (const RWBodyBase &second)

	RWBodyBase (RWStaticCtor)

	RWBodyBase (void)

virtual	~RWBodyBase (void)

RWBodyBase &	operator= (const RWBodyBase &second)

Protected Member Functions inherited from RWTCountingBody< RWMutexLock >
	RWTCountingBody (const RWTCountingBody< RWMutexLock > &second)

	RWTCountingBody (RWStaticCtor)

	RWTCountingBody (unsigned initCount=0)

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 (const RWTMonitor< RWMutexLock > &second)

	RWTMonitor (RWStaticCtor)

	RWTMonitor (void)

	~RWTMonitor (void)

void	acquire (void)

bool	isAcquired (void) const

RWTMonitor< RWMutexLock > &	monitor (void) const

RWMutexLock &	mutex (void)

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

void	release (void)

bool	tryAcquire (void)

Additional Inherited Members
Public Member Functions inherited from RWXmlObjectInputStreamImp
virtual void	endAssoc ()

virtual void	endBlock ()

virtual void	endElement ()

virtual void	endMap ()

virtual void	endMember ()

virtual void	endSequence ()

virtual void	getBool (bool &value)

virtual void	getChar (char &value)

virtual void	getCharacter (char &value)

virtual void	getDouble (double &value)

virtual void	getFloat (float &value)

virtual void	getInt (int &value)

virtual void	getLong (long &value)

virtual void	getLongDouble (long double &value)

virtual void	getLongLong (long long &value)

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

virtual void	getShort (short &value)

virtual void	getSignedChar (signed char &value)

virtual void	getSizeT (size_t &value)

virtual void	getString (RWCString &str)

void	getSymbol (RWSymbol &value)

virtual void	getUCharacter (RWUChar &value)

virtual void	getUnsignedChar (unsigned char &value)

virtual void	getUnsignedInt (unsigned int &value)

virtual void	getUnsignedLong (unsigned long &value)

virtual void	getUnsignedLongLong (unsigned long long &value)

virtual void	getUnsignedShort (unsigned short &value)

virtual void	getUString (RWBasicUString &str)

virtual void	getWchar_t (wchar_t &value)

virtual void	getWCharacter (wchar_t &value)

virtual void	getWString (RWWString &str)

virtual RWSymbol	readTypeInfo ()

virtual void	rememberObject (const void *obj)

virtual void	startAssocKey ()

virtual void	startAssocValue ()

virtual RWSymbol	startBlock ()

virtual void	startElement (int &position)

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	endParent ()

virtual void	openContext (bool readContext=true)

virtual void	peekChar (char &value)

virtual void	peekCharacter (char &value)

virtual void	startParent (const RWSymbol &)

Public Member Functions inherited from RWFilteredDataInputStreamImp
virtual	~RWFilteredDataInputStreamImp ()

virtual RWSize	available () const

virtual void	close ()

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 RWSize	getDoubles (double *arrayPt, RWSize count)

virtual RWSize	getFloats (float *arrayPt, RWSize count)

virtual RWSize	getInts (int *arrayPt, RWSize count)

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

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

virtual RWSize	getLongs (long *arrayPt, RWSize count)

virtual RWSize	getShorts (short *arrayPt, RWSize count)

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

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

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

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

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

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

virtual RWSize	getWchar_ts (wchar_t *arrayPt, RWSize count)

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 Attributes inherited from RWXmlObjectStreamCommon
static const char *	associationTag

static const char *	assocKeyTag

static const char *	assocValueTag

static const char *	elementPosAttr

static const char *	IdAttr

static const char *	IdRefAttr

static const char *	mapCountAttr

static const char *	mapKeyTypeAttr

static const char *	mapTag

static const char *	mapValueTypeAttr

static const char *	memberNameAttr

static const char *	memberTag

static const char *	memberTypeAttr

static const char *	nestedObjectTag

static const char *	objectNameAttr

static const char *	objectRefTag

static const char *	objectRefTagLocal

static const char *	objectTag

static const char *	objectTypeAttr

static const char *	primitiveTag

static const char *	rwEncodingNamespaceValue

static const char *	rwNamespace

static const char *	rwNamespaceAttr

static const char *	rwNamespaceValue

static const char *	seqCountAttr

static const char *	seqTypeAttr

static const char *	sequenceElementTag

static const char *	sequenceTag

static const char *	xsdNamespace

static const char *	xsdNamespaceAttr

static const char *	xsdNamespaceValue

static const char *	xsiNamespace

static const char *	xsiNamespaceAttr

static const char *	xsiNamespaceValue

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

template<class Transform>
class RWTTransformObjectInputStreamImp< Transform >

This class uses RWXmlObjectInputStreamImp and RWTTransformInputStreamImp to construct an XML input stream that applies a generic transformation to the XML document before reading it from the source.

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

ifstream s("foo.xml");

// Create a transformation object, which must have a

// transform(istream&,ostream&) interface

MyTransform t;

// Create an XML data stream using the fstream

RWObjectInputStream in =

RWTTransformObjectInputStreamImp<MyTransform>::make(s, t);

// Read an integer from XML data stream.

int i;

in >> i;

RWObjectInputStream
Handle class for object input stream implementation classes.
Definition RWObjectInputStream.h:59

RWTTransformObjectInputStreamImp::make
static RWObjectInputStream make(std::istream &source, Transform transformer, bool escape=true)
Definition RWTTransformObjectInputStreamImp.h:159

Constructor & Destructor Documentation

◆ RWTTransformObjectInputStreamImp() [1/2]

template<class Transform >

RWTTransformObjectInputStreamImp< Transform >::RWTTransformObjectInputStreamImp	(	std::istream &	istr,
		Transform	transformer,
		bool	escape )

inlineprotected

Used by the make() function and potentially by derived classes to initialize the source data stream and to insert into the stream a transformation of the XML document based on the transformation object transform.

The parameter istr is a handle to the initialized stream.

The parameter transformer is a transformation object that must supply a public interface function transform(istream&,ostream&).

The parameter escape sets whether the input stream contains escapes for XML reserved characters that need to be unescaped. Usually this would be because the objects serialized out with RWXmlObjectOutputStreamImp contained embedded XML.

The reserved characters are:

< > & " '

You get slightly better performance if the escape parameter is set to false, but before doing so be certain that your data does not contain reserved characters.

◆ RWTTransformObjectInputStreamImp() [2/2]

template<class Transform >

RWTTransformObjectInputStreamImp< Transform >::RWTTransformObjectInputStreamImp	(	std::istream &	istr,
		Transform	transformer,
		std::ios *&	formatter,
		bool	escape )

inlineprotected

Used by the make() function and potentially by derived classes to initialize the source data stream and to insert into the stream a transformation of the XML document based on the transformation object transform.

The parameter istr is a handle to the initialized stream.

The parameter transformer is a transformation object that must supply a public interface function transform(istream&,ostream&).

The parameter escape sets whether the input stream contains escapes for XML reserved characters that need to be unescaped. Usually this would be because the objects serialized out with RWXmlObjectOutputStreamImp contained embedded XML.

The reserved characters are:

< > & " '

You get slightly better performance if the escape parameter is set to false, but before doing so be certain that your data does not contain reserved characters.

This constructor also takes a pointer reference to an std::ios formatting object. An empty formatting object pointer is created before the XML stream is created and is passed to this constructor through the make() function. This constructor, in creating the underlying character stream for the XML stream, creates a formatting object for the stream and places the address of that object in the pointer reference. The calling application can then use this formatting object to manipulate data formats in the XML stream. See the corresponding make() function description for an example.

Member Function Documentation

◆ make() [1/2]

template<class Transform >

static RWObjectInputStream RWTTransformObjectInputStreamImp< Transform >::make	(	std::istream &	source,
		Transform	transformer,
		bool	escape = true )

inlinestatic

Constructs an RWTTransformObjectInputStreamImp instance that uses the data stream source as its source of bytes, and returns a handle to it. The XML input stream includes a transformation of the XML document based on the transformation object transformer.

The parameter escape sets whether the primitive element values will be unescaped. By default, this parameter is set to true.

◆ make() [2/2]

template<class Transform >

static RWObjectInputStream RWTTransformObjectInputStreamImp< Transform >::make	(	std::istream &	source,
		Transform	transformer,
		std::ios *&	formatter,
		bool	escape = true )

inlinestatic

Constructs an RWTTransformObjectInputStreamImp instance that uses the data stream source as its source of bytes, and returns a handle to it. The XML input stream includes a transformation of the XML document based on the transformation object transformer.

The parameter escape sets whether the primitive element values will be unescaped. By default, this parameter is set to true.

This function also takes a pointer reference to an std::ios formatting object. An empty formatting object pointer is created before the XML stream is created and is passed through this make() function to the constructor:

std::ios* formatter;  // uninitialized pointer
RWObjectOutputStream xostr =
    RWTTransformObjectInputStreamImp<MyTransform>

The constructor, in creating the underlying character stream for the XML stream, creates a formatting object for the stream and places the address of that object in the pointer reference. The calling application can then use this formatting object to manipulate data formats in the XML stream.

formatter->precision(15); // manipulate data format

SourcePro® API Reference Guide

Static Public Member Functions

Protected Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ RWTTransformObjectInputStreamImp() [1/2]

◆ RWTTransformObjectInputStreamImp() [2/2]

Member Function Documentation

◆ make() [1/2]

◆ make() [2/2]