IXE::CompositeField Class Reference
[Reflection]

Composite fields. More...

#include <metaclass.h>

Inheritance diagram for IXE::CompositeField:

Public Member Functions
	CompositeField (char const name, Size offset, Size fsize, IndexType indexType, MetaClass metaClass, std::type_info const type, char const merge=0)
virtual Field *	clone () const
virtual void	clear (void **fieldPtr)
	for avoiding destructors
virtual Size	size ()
	Size in bytes of field.
virtual Size	packSize (byte *)
	Compute size of record needed for storing the field.
virtual bool	isType (Type t)
	Check Field type.
virtual Item *	item ()
	Create an Item to store a value for the Field.
virtual MetaClass *	itemClass () const
	The metaclass of items.
virtual byte *	store (byte &dst, byte src)
	CompositeField.
virtual Size	storeKey (byte dst, byte src)
	Same as store() but without field header information, and BigEndian order to ensure comparison by bt_compare works.
virtual byte *	fetch (byte dst, byte &src)
	Method to fetch fields from a buffer.
virtual byte *	fetchKey (byte dst, byte src)
	Same as fetch() from key data, without header information, which gets converted from BigEndian order to host order.
virtual std::ostream &	print (std::ostream &out)
	Display the Field information.
Protected Attributes
MetaClass *	metaClass
Size	fsize

Detailed Description

Composite fields.

byte * IXE::CompositeField::fetch	(	byte *	dst,
		byte *&	src
	)			`[virtual]`

Method to fetch fields from a buffer.

Parameters:

	dst	the location of the field.
	src	the buffer from which the field is fetched; it is advanced to the next field

Implements IXE::Field.

virtual byte* IXE::CompositeField::fetchKey	(	byte *	dst,
		byte *	src
	)			`[inline, virtual]`

Same as fetch() from key data, without header information, which gets converted from BigEndian order to host order.

Parameters:

	dst	the location of the field.
	src	the buffer from which the field is fetched.

Implements IXE::Field.

Size IXE::CompositeField::packSize ( byte * base ) [virtual]

Compute size of record needed for storing the field.

This includes header information (eg. length) and padding for alignment

Parameters:

base

the location of the object to be stored. If base == 0, return the maximum size.

Implements IXE::Field.

virtual std::ostream& IXE::CompositeField::print ( std::ostream & out ) [virtual]

Display the Field information.

Parameters:

out

the output stream

Implements IXE::Field.

virtual Size IXE::CompositeField::storeKey	(	byte *	dst,
		byte *	src
	)			`[inline, virtual]`

Same as store() but without field header information, and BigEndian order to ensure comparison by bt_compare works.

Parameters:

	dst	the buffer where to store the field.
	src	the field in the object being stored.

Implements IXE::Field.

The documentation for this class was generated from the following files: