Default Values

HydraExpress Components : XML Binding Development Guide : PART III Advanced Topics : Mapping XML Schema to C++ : Simple Types : Default Values

Default Values

HydraExpress initializes built-in schema types to a reasonable value. If the type has a default value associated with it, HydraExpress uses the default value from the schema to initialize the type. Table 5 lists the default value for each of the default C++ types.

The default values for a type can be configured by modifying the configuration file, as described in Flexible Type Mapping.

Table 5 – Initialization values for C++ types
C++ or SourcePro Type	Initial Value
RWCString	RWCString()
std::string	std::string()
RWDecimalPortable	0
rwsf::TimeSpan	All time values set to 0
bool	false
float	0.0
double	0.0
int	0
long	0
short	0
unsigned int	0
unsigned long	0
unsigned short	0
RWDate	RWDate::now() (which is the current date and time)
RWDateTime	RWDateTime::now() (which is the current date and time)