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20 INLINE ParamValueBase::
29 return TypeHandle::none();
35 INLINE ParamTypedRefCount::
46 if (_value ==
nullptr) {
47 return TypeHandle::none();
49 return _value->get_type();
92 return get_type_handle(Type);
119 output(std::ostream &out)
const {
140 generic_write_datagram(dg, _value);
156 esv->fillin(scan, manager);
169 generic_read_datagram(_value, scan);
static void register_with_read_factory()
Tells the BamReader how to create objects of type ParamValue.
A class to retrieve the individual data elements previously stored in a Datagram.
virtual TypeHandle get_value_type() const
Retrieves the type of the value stored in the parameter.
This is the fundamental interface for extracting binary objects from a Bam file, as generated by a Ba...
get_value
Retrieves the value stored in the parameter.
This is the fundamental interface for writing binary objects to a Bam file, to be extracted later by ...
static WritableFactory * get_factory()
Returns the global WritableFactory for generating TypedWritable objects.
A base class for things which need to inherit from both TypedObject and from ReferenceCount.
Base class for objects that can be written to and read from Bam files.
An ordered list of data elements, formatted in memory for transmission over a socket or writing to a ...
set_value
Changes the value stored in the parameter.
TypeHandle is the identifier used to differentiate C++ class types.
virtual TypeHandle get_value_type() const
Retrieves the type of the value stored in the parameter.
A handy class object for storing simple values (like integers or strings) passed along with an Event ...
An instance of this class is passed to the Factory when requesting it to do its business and construc...
virtual void write_datagram(BamWriter *manager, Datagram &dg)
Writes the contents of this object to the datagram for shipping out to a Bam file.
void register_factory(TypeHandle handle, CreateFunc *func, void *user_data=nullptr)
Registers a new kind of thing the Factory will be able to create.
get_value
Retrieves the value stored in the parameter.
virtual void fillin(DatagramIterator &scan, BamReader *manager)
This internal function is intended to be called by each class's make_from_bam() method to read in all...
virtual TypeHandle get_value_type() const
Returns the type of the underlying value.
virtual void write_datagram(BamWriter *manager, Datagram &dg)
Writes the contents of this object to the datagram for shipping out to a Bam file.
void parse_params(const FactoryParams ¶ms, DatagramIterator &scan, BamReader *&manager)
Takes in a FactoryParams, passed from a WritableFactory into any TypedWritable's make function,...