RWWithObjectOutputContext Class Reference

Represents a guard object that opens and closes a context within a lexical scope for output streams. More...

#include <rw/serial/RWObjectOutputStream.h>

Public Member Functions
	RWWithObjectOutputContext (RWObjectOutputStream &strm, bool writeContext=true)
	RWWithObjectOutputContext (RWObjectOutputStreamImp *strm, bool writeContext=true)
	~RWWithObjectOutputContext ()

Detailed Description

This class consists of a guard object that opens and closes a context within a lexical scope. Simply declare an automatic instance of this class initialized with a object output stream, and all object references within the scope of the automatic variable will be streamed within the same context.

Example

// Output one or more objects in the same context.
 
#include <rw/serial/RWCompactObjectOutputStreamImp.h>
#include <rw/serial/RWObjectOutputStream.h>
#include <fstream.h>
#include <iostream.h>
 
int main() {
  ofstream fstrm;
  fstrm.open("RWWithObjectOutputContext.out", ios::out);
 
  RWObjectOutputStream out = RWCompactObjectOutputStreamImp::make(fstrm);
 
  RWWithObjectOutputContext context(out);
 
  int i, j;
  i = 53;
  j = 42;
 
  out << i << j;
 
  return 0;
}

See also

RWObjectOutputStream

Constructor & Destructor Documentation

RWWithObjectOutputContext() [1/2]

RWWithObjectOutputContext::RWWithObjectOutputContext ( RWObjectOutputStream & strm, bool writeContext = true )

inline

Constructor taking an object output stream reference argument. If writeContext is true, then write out any document header at the outer context.

RWWithObjectOutputContext() [2/2]

RWWithObjectOutputContext::RWWithObjectOutputContext ( RWObjectOutputStreamImp * strm, bool writeContext = true )

inline

Constructor taking an object output stream pointer argument. If writeContext is true, then write out in any document header at the outer context.

~RWWithObjectOutputContext()

RWWithObjectOutputContext::~RWWithObjectOutputContext ( )

inline

Destructor automatically closes the context.