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Overview The describe operation returns a structure containing information about a CORBA::ConstantDef Interface Repository object. Original interface CORBA module: ConstantDef Interface Exceptions CORBA::SystemException
Intended Usage
The inherited describe operation returns a structure (CORBA::Contained::Description) that contains information about a CORBA::ConstantDef Interface Repository object. The CORBA::Contained::Description structure has two fields: kind (CORBA::DefinitionKind data type), and value (CORBA::Any data type).
The kind of definition described by the returned structure is provided using the kind field, and the value field is a CORBA::Any that contains the description that is specific to the kind of object described. When the describe operation is invoked on a constant (CORBA::ConstantDef) object, the kind field is equal to CORBA::dk_Constant and the value field contains the CORBA::ConstantDescription structure.
IDL Syntax
struct ConstantDescription { Identifier name; RepositoryId id; RepositoryId defined_in; VersionSpec version; TypeCode type; any value; }; struct Description { DefinitionKind kind; any value; }; Description describe ();
Input parameters
None.
Return value
- Description *
- The returned value is a pointer to a CORBA::Contained::Description structure. The memory is owned by the caller and can be removed using delete.
Example
// C++ // assume that 'this_constant' has already been initialized CORBA::ConstantDef * this_constant; // retrieve a description of the constant CORBA::ConstantDef::Description * returned_description; returned_description = this_constant-> describe (); // retrieve the constant description from the returned description // structure CORBA::ConstantDescription * constant_description; constant_description = (CORBA::ConstantDescription *) returned_description-> value.value ();
Related reference... | |
CORBA module in Object Request Broker | |
Parent: CORBA module: ConstantDef Interface | |
ConstantDef::type_def | |
ConstantDef::value | |