dueca::CommObjectReader Class Reference

Class to access data in a channel without access to the class of that data. More...

#include <CommObjectReader.hxx>

Inheritance diagram for dueca::CommObjectReader:

Collaboration diagram for dueca::CommObjectReader:

Public Member Functions
	CommObjectReader (const char *classname, const void *obj=NULL)
	Constructor, for testing purposes, and for recursively accessing complex objects.
template<typename T >
	CommObjectReader (T &obj)
	Templated constructor.
ElementReader	operator[] (const char *ename) const
	Return an element accessor based on the element name.
ElementReader	operator[] (unsigned i) const
	Return an element accessor based on index.
	~CommObjectReader ()
	Destructor.
Public Member Functions inherited from dueca::CommObjectReaderWriter
	CommObjectReaderWriter (const char *classname)
	Constructor, for testing purposes, and for recursively accessing complex objects.
	~CommObjectReaderWriter ()
	Destructor.
const char *	getMemberName (unsigned i) const
	Return an element name based on index.
const char *	getMemberClass (unsigned i) const
	Return an element's class based on index.
const char *	getMemberKeyClass (unsigned i) const
	Return an element's key class based on index.
MemberArity	getMemberArity (unsigned i) const
	Return the member arity.
size_t	getMemberSize (unsigned i) const
	Get member fixed length, if available.
const char *	getClassname () const
	Return the classname of the currently written or read type; typically for debugging messages.
size_t	getNumMembers () const
	Determine the number of members in the object.
const CommObjectMemberAccessBase &	getMemberAccessor (unsigned i) const
	Directly reach the MemberAccess object.
CommObjectReaderWriter &	operator= (const CommObjectReaderWriter &o)
	assignment, needed for temporary copy MSGPACKtoDCO

Protected Attributes
const void *	obj
	Pointer to the currently accessed object, NULL if not used.
Protected Attributes inherited from dueca::CommObjectReaderWriter
DataClassRegistry_entry_type	entry
	entry giving the class information

Detailed Description

Class to access data in a channel without access to the class of that data.

Note that using a DataReader is in many cases much more efficient, the CommObjectReader is only applicable for generic or data-agnostic reading.

Given the name of one of the Communication object's members, or the index of a data member (as returned by the DataClassRegistry::getMemberIndex call), an ElementReader can be created.

Constructor & Destructor Documentation

CommObjectReader() [1/2]

dueca::CommObjectReader::CommObjectReader	(	const char *	classname,
		const void *	obj = NULL
	)

Constructor, for testing purposes, and for recursively accessing complex objects.

Parameters

classname	Type of data; must match, or the result is nonsense!
obj	Pointer to the object.

CommObjectReader() [2/2]

template<typename T >

dueca::CommObjectReader::CommObjectReader ( T &  obj )

inline

Templated constructor.

Parameters

obj	Object to be read.

Member Function Documentation

operator[]() [1/2]

ElementReader dueca::CommObjectReader::operator[]

(

const char *

ename

)

const

Return an element accessor based on the element name.

Parameters

ename

Name of the data member

operator[]() [2/2]

ElementReader dueca::CommObjectReader::operator[]

(

unsigned

i

)

const

Return an element accessor based on index.

Parameters

i	Index of the data member

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The documentation for this class was generated from the following file:

• /usr/src/packages/BUILD/dueca/CommObjectReader.hxx