19.9.5 Mapping for Inheritance

A hierarchy of Automation interfaces is mapped to an identical hierarchy of CORBA View Interfaces.

For example, given the interface “account? and its derived interface “checkingAccount? defined next,

// ODL[odl, dual, uuid(...)]interface DIMyModule_account: IDispatch {

[propput] HRESULT balance)[in] float balance);

[propget] HRESULT balance([retval,out] float * ret);[propget] HRESULT owner([retval,out] BSTR * ret);HRESULT makeLodgement([in] float amount,

[out] float * balance);HRESULT makeWithdrawal([in] float amount,

[out] float * balance);};interface DIMyModule_checkingAccount: DIMyModule_account {

[propget] HRESULT overdraftLimit ([retval,out] short * ret);HRESULT orderChequeBook([retval,out] short * ret);};

the corresponding CORBA View Interfaces are:

// OMG IDL

interface MyModule_account { attribute float balance; readonly attribute string owner;


	long	makeLodgement (in float amount, out float
		balance);
	long	makeWithdrawal (in float amount, out float
		theBalance);
};

interface MyModule_checkingAccount: MyModule_account { readonly attributeshort overdraftLimit; short orderChequeBook ();

};