AbstractParameterRegistrationImpl.java 文件源码

@Override
@SuppressWarnings("unchecked")
public T extract(CallableStatement statement) {
    if ( mode == ParameterMode.IN ) {
        throw new ParameterMisuseException( "IN parameter not valid for output extraction" );
    }
    else if ( mode == ParameterMode.REF_CURSOR ) {
        throw new ParameterMisuseException( "REF_CURSOR parameters should be accessed via results" );
    }

    try {
        if ( ProcedureParameterExtractionAware.class.isInstance( hibernateType ) ) {
            return (T) ( (ProcedureParameterExtractionAware) hibernateType ).extract( statement, startIndex, session() );
        }
        else {
            return (T) statement.getObject( startIndex );
        }
    }
    catch (SQLException e) {
        throw procedureCall.getSession().getFactory().getSQLExceptionHelper().convert(
                e,
                "Unable to extract OUT/INOUT parameter value"
        );
    }
}