esi::Argv Class Reference

Simplest string container interface, ala C's argv. More...

#include <ArgvInterface.h>

List of all members.

Public Member Functions
virtual	~Argv ()
	Default destructor.
virtual const char *	get (int index) CLASSIC_CCA_PURE
virtual int	getArgCount () CLASSIC_CCA_PURE
virtual void	appendArg (const char *arg) CLASSIC_CCA_PURE
	Copy the arg given into the next slot in the argv.

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Detailed Description

Simplest string container interface, ala C's argv.

A little iterator interface interface around arrays of strings, whereever tbey may be fetched from an ESI interface. In particular: Exists because we want a simple, abstract alternative to the STL. Implementors are free to use the STL underneath this interface if they so choose.

    An example of its use:
    SomeConcreteArgvImpl argvimpl;
	// perhaps the argv class from the reference implementation.
    esi::Argv *argvi = dynamic_cast<esi::Argv *>(&argvimpl);
    esi_int err;
    err = object->getRunTimeModels(argvi, char *msg);
    if (!err) {
   	        const char *arg;
   		      for (i = 0; (arg = argvi->get(i)) != 0; i++) {
   			              do.something(arg);
   				            }
   		        delete argvi;
     }
     argvi = 0;

     And inside the getRunTimeModels call, a set of calls on
     	argvi->appendArg(rtmodelName[i]);
     occurs, filling in the answers.
   

This pattern keeps creation/management of all the memory associated with the Argv in the scope of the caller or internal to the Argv itself.

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Constructor & Destructor Documentation

virtual esi::Argv::~Argv

(

)

[inline, virtual]

Default destructor.

{}

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Member Function Documentation

virtual const char* esi::Argv::get

(

int

index

)

[virtual]

Returns:

the ith element of argv (not to be modified) if exists. returns 0 otherwise.

virtual int esi::Argv::getArgCount

(

)

[virtual]

Returns:

the current number of strings. This number obviously changes when appendArg

virtual void esi::Argv::appendArg

(

const char *

arg

)

[virtual]

Copy the arg given into the next slot in the argv.

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

• ArgvInterface.h