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

#include <CommObjectReader.hxx>

Inheritance diagram for dueca::CommObjectReader:

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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.

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

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.

ElementReader dueca::CommObjectReader::operator[] ( const char * ename ) const

Return an element accessor based on the element name.

Parameters

ename Name of the data member

ElementReader dueca::CommObjectReader::operator[] ( unsigned i ) const

Return an element accessor based on index.

Parameters

i	Index of the data member

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

/home/abuild/rpmbuild/BUILD/dueca-4.2.1-build/dueca-4.2.1/dueca/CommObjectReader.hxx