ACE_Configuration Class Reference

Base class for configuration databases. More...

#include <Configuration.h>

Inheritance diagram for ACE_Configuration:

Collaboration diagram for ACE_Configuration:

List of all members.

Public Types

enum VALUETYPE { STRING, INTEGER, BINARY, INVALID }

Enumeration for the various types of values we can store. More...

Public Member Functions

virtual ~ACE_Configuration (void)

Destructor.

virtual const
ACE_Configuration_Section_Key & root_section (void) const

Obtain a reference to the root section of this configuration.

virtual int open_section (const ACE_Configuration_Section_Key &base, const ACE_TCHAR *sub_section, int create, ACE_Configuration_Section_Key &result)=0

virtual int remove_section (const ACE_Configuration_Section_Key &key, const ACE_TCHAR *sub_section, int recursive)=0

Removes a named section.

virtual int enumerate_values (const ACE_Configuration_Section_Key &key, int index, ACE_TString &name, VALUETYPE &type)=0

virtual int enumerate_sections (const ACE_Configuration_Section_Key &key, int index, ACE_TString &name)=0

virtual int set_string_value (const ACE_Configuration_Section_Key &key, const ACE_TCHAR *name, const ACE_TString &value)=0

Sets a string-typed value.

virtual int set_integer_value (const ACE_Configuration_Section_Key &key, const ACE_TCHAR *name, u_int value)=0

Sets a integer-typed value.

virtual int set_binary_value (const ACE_Configuration_Section_Key &key, const ACE_TCHAR *name, const void *data, size_t length)=0

Sets a binary-typed value.

virtual int get_string_value (const ACE_Configuration_Section_Key &key, const ACE_TCHAR *name, ACE_TString &value)=0

Gets a string-typed value.

virtual int get_integer_value (const ACE_Configuration_Section_Key &key, const ACE_TCHAR *name, u_int &value)=0

Gets an integer-typed value.

virtual int get_binary_value (const ACE_Configuration_Section_Key &key, const ACE_TCHAR *name, void *&data, size_t &length)=0

Gets a binary-typed value.

virtual int find_value (const ACE_Configuration_Section_Key &key, const ACE_TCHAR *name, VALUETYPE &type)=0

virtual int remove_value (const ACE_Configuration_Section_Key &key, const ACE_TCHAR *name)=0

Removes a named value.

int expand_path (const ACE_Configuration_Section_Key &key, const ACE_TString &path_in, ACE_Configuration_Section_Key &key_out, int create=1)

int export_config (const ACE_TCHAR *filename)

int import_config (const ACE_TCHAR *filename)

bool operator== (const ACE_Configuration &rhs) const

bool operator!= (const ACE_Configuration &rhs) const

Static Public Attributes

static ACE_TCHAR NULL_String_ = '\0'

Protected Member Functions

ACE_Configuration (void)

Default ctor.

ACE_Section_Key_Internal * get_internal_key (const ACE_Configuration_Section_Key &key)

Resolves the internal key from a section key.

int validate_name (const ACE_TCHAR *name, int allow_path=0)

int validate_value_name (const ACE_TCHAR *name)

ACE_Configuration (const ACE_Configuration &rhs)

ACE_Configuration & operator= (const ACE_Configuration &rhs)

Protected Attributes

ACE_Configuration_Section_Key root_

Detailed Description

Base class for configuration databases.

For internal use only.

This class provides an interface for configuration databases. A concrete class is required that implements the interface.

See also:: ACE_Configuration_Heap
ACE_Configuration_Win32Registry

Member Enumeration Documentation

enum ACE_Configuration::VALUETYPE

Enumeration for the various types of values we can store.

Enumerator:

STRING
INTEGER
BINARY
INVALID

Constructor & Destructor Documentation

ACE_Configuration::~ACE_Configuration ( void ) [virtual]

Destructor.

ACE_Configuration::ACE_Configuration ( void ) [protected]

Default ctor.

ACE_Configuration::ACE_Configuration ( const ACE_Configuration & rhs ) [protected]

Member Function Documentation

const ACE_Configuration_Section_Key & ACE_Configuration::root_section ( void ) const [virtual]

Obtain a reference to the root section of this configuration.

virtual int ACE_Configuration::open_section	(	const ACE_Configuration_Section_Key &	base,
		const ACE_TCHAR *	sub_section,
		int	create,
		ACE_Configuration_Section_Key &	result
	)			`[pure virtual]`

Opens a named section in an existing section.

Parameters:

	base	Existing section in which to open the named section.
	sub_section	Name of the section to open.
	create	If zero, the named section must exist. If non-zero, the named section will be created if it does not exist.
	result	Reference; receives the section key for the new section.

Return values:

	0	for success.
	-1	for error; ACE_OS::last_error() retrieves error code.

Implemented in ACE_Configuration_Win32Registry, and ACE_Configuration_Heap.

virtual int ACE_Configuration::remove_section	(	const ACE_Configuration_Section_Key &	key,
		const ACE_TCHAR *	sub_section,
		int	recursive
	)			`[pure virtual]`

Removes a named section.

Parameters:

	key	Section key to remove the named section from.
	sub_section	Name of the section to remove.
	recursive	If non zero, any subkeys below sub_section are removed as well.

Return values:

	0	for success.
	-1	for error; ACE_OS::last_error() retrieves error code.

Implemented in ACE_Configuration_Win32Registry, and ACE_Configuration_Heap.

virtual int ACE_Configuration::enumerate_values	(	const ACE_Configuration_Section_Key &	key,
		int	index,
		ACE_TString &	name,
		VALUETYPE &	type
	)			`[pure virtual]`

Enumerates through the values in a section.

Parameters:

	key	Section key to iterate through.
	index	Iteration position. Must be zero on the first call to iterate through key. Increment index by one on each successive call to this method.
	name	Receives the value's name.
	type	Receives the value's data type.

Note:: You may not delete or add values while enumerating. If the section is modified during enumeration, results are undefined; you must restart the enumeration from index 0.

Return values:

	0	for success, name and type are valid.
	1	there are no more values in the section.
	-1	for error; ACE_OS::last_error() retrieves error code.

Implemented in ACE_Configuration_Win32Registry, and ACE_Configuration_Heap.

virtual int ACE_Configuration::enumerate_sections	(	const ACE_Configuration_Section_Key &	key,
		int	index,
		ACE_TString &	name
	)			`[pure virtual]`

Enumerates through the subsections in a section.

Parameters:

	key	Section key to iterate through.
	index	Iteration position. Must be zero on the first call to iterate through key. Increment index by one on each successive call to this method.
	name	Receives the subsection's name.

Note:: You may not modify the key section while enumerating. If the section is modified during enumeration, results are undefined; you must restart the enumeration from index 0.

Return values:

	0	for success, name has a valid name.
	1	there are no more subsections in the section.
	-1	for error; ACE_OS::last_error() retrieves error code.

Implemented in ACE_Configuration_Win32Registry, and ACE_Configuration_Heap.

virtual int ACE_Configuration::set_string_value	(	const ACE_Configuration_Section_Key &	key,
		const ACE_TCHAR *	name,
		const ACE_TString &	value
	)			`[pure virtual]`

Sets a string-typed value.

Parameters:

	key	Configuration section to set the value in.
	name	Name of the configuration value to set. If a value with the specified name exists, it is replaced.
	value	The string to set the configuration value to.

Return values:

	0	for success.
	-1	for error; ACE_OS::last_error() retrieves error code.

Implemented in ACE_Configuration_Win32Registry, and ACE_Configuration_Heap.

virtual int ACE_Configuration::set_integer_value	(	const ACE_Configuration_Section_Key &	key,
		const ACE_TCHAR *	name,
		u_int	value
	)			`[pure virtual]`

Sets a integer-typed value.

Parameters:

	key	Configuration section to set the value in.
	name	Name of the configuration value to set. If a value with the specified name exists, it is replaced.
	value	The integer to set the configuration value to.

Return values:

	0	for success.
	-1	for error; ACE_OS::last_error() retrieves error code.

Implemented in ACE_Configuration_Win32Registry, and ACE_Configuration_Heap.

virtual int ACE_Configuration::set_binary_value	(	const ACE_Configuration_Section_Key &	key,
		const ACE_TCHAR *	name,
		const void *	data,
		size_t	length
	)			`[pure virtual]`

Sets a binary-typed value.

Parameters:

	key	Configuration section to set the value in.
	name	Name of the configuration value to set. If a value with the specified name exists, it is replaced.
	data	Pointer to the binary data for the value.
	length	Number of bytes for the new value.

Return values:

	0	for success.
	-1	for error; ACE_OS::last_error() retrieves error code.

Implemented in ACE_Configuration_Win32Registry, and ACE_Configuration_Heap.

virtual int ACE_Configuration::get_string_value	(	const ACE_Configuration_Section_Key &	key,
		const ACE_TCHAR *	name,
		ACE_TString &	value
	)			`[pure virtual]`

Gets a string-typed value.

Parameters:

	key	Configuration section to get the value from.
	name	Name of the configuration value to get.
	value	Receives the configuration value if it exists and has type STRING.

Return values:

	0	for success.
	-1	for error; ACE_OS::last_error() retrieves error code.

Implemented in ACE_Configuration_Win32Registry, and ACE_Configuration_Heap.

virtual int ACE_Configuration::get_integer_value	(	const ACE_Configuration_Section_Key &	key,
		const ACE_TCHAR *	name,
		u_int &	value
	)			`[pure virtual]`

Gets an integer-typed value.

Parameters:

	key	Configuration section to get the value from.
	name	Name of the configuration value to get.
	value	Receives the configuration value if it exists and has type INTEGER.

Return values:

	0	for success.
	-1	for error; ACE_OS::last_error() retrieves error code.

Implemented in ACE_Configuration_Win32Registry, and ACE_Configuration_Heap.

virtual int ACE_Configuration::get_binary_value	(	const ACE_Configuration_Section_Key &	key,
		const ACE_TCHAR *	name,
		void *&	data,
		size_t &	length
	)			`[pure virtual]`

Gets a binary-typed value.

Parameters:

	key	Configuration section to get the value from.
	name	Name of the configuration value to get.
	data	Receives a pointer to memory holding the binary data for the value. This method allocates the memory pointed to using operator new[]. The caller is responsible for freeing the memory using operator delete[].
	length	Receives the number of bytes in the value.

Return values:

	0	for success; caller is responsible for freeing the returned memory.
	-1	for error; ACE_OS::last_error() retrieves error code.

Implemented in ACE_Configuration_Win32Registry, and ACE_Configuration_Heap.

virtual int ACE_Configuration::find_value	(	const ACE_Configuration_Section_Key &	key,
		const ACE_TCHAR *	name,
		VALUETYPE &	type
	)			`[pure virtual]`

Retrieves the type of a named configuration value.

Parameters:

	key	Configuration section to look up the name in.
	name	Name of the configuration value to get the type of.
	type	Receives the data type of the named value, if it exists.

Return values:

	0	for success.
	-1	for error; ACE_OS::last_error() retrieves error code.

Implemented in ACE_Configuration_Win32Registry, and ACE_Configuration_Heap.

virtual int ACE_Configuration::remove_value	(	const ACE_Configuration_Section_Key &	key,
		const ACE_TCHAR *	name
	)			`[pure virtual]`

Removes a named value.

Parameters:

	key	Configuration section to remove the named value from.
	name	Name of the configuration value to remove.

Return values:

	0	for success.
	-1	for error; ACE_OS::last_error() retrieves error code.

Implemented in ACE_Configuration_Win32Registry, and ACE_Configuration_Heap.

int ACE_Configuration::expand_path	(	const ACE_Configuration_Section_Key &	key,
		const ACE_TString &	path_in,
		ACE_Configuration_Section_Key &	key_out,
		int	create = `1`
	)

Expands <path_in> to <key_out> from key. If create is true, the subsections are created. Returns 0 on success, non zero on error The path consists of sections separated by the backslash '\' or forward slash '/'. Returns 0 on success, -1 if <create) is 0 and the path refers a nonexistant section

int ACE_Configuration::export_config ( const ACE_TCHAR * filename )

Deprecated:: Exports the configuration database to filename. If filename is already present, it is overwritten. This function is deprecated and will be removed in a future version of ACE. Please use either ACE_Registry_ImpExp or ACE_Ini_ImpExp instead.

int ACE_Configuration::import_config ( const ACE_TCHAR * filename )

Deprecated:: Imports the configuration database from filename. Any existing data is not removed. This function is deprecated and will be removed in a future version of ACE. Please use ACE_Registry_ImpExp or ACE_Ini_ImpExp instead.

bool ACE_Configuration::operator== ( const ACE_Configuration & rhs ) const

Determine if the contents of this object is the same as the contents of the object on the right hand side. Returns 1 (True) if they are equal and 0 (False) if they are not equal

bool ACE_Configuration::operator!= ( const ACE_Configuration & rhs ) const

Determine if the contents of this object are different from the contents of the object on the right hand side. Returns 0 (False) if they are equal and 1 (True) if they are not equal

ACE_Section_Key_Internal * ACE_Configuration::get_internal_key ( const ACE_Configuration_Section_Key & key ) [protected]

Resolves the internal key from a section key.

int ACE_Configuration::validate_name	(	const ACE_TCHAR *	name,
		int	allow_path = `0`
	)			`[protected]`

Tests to see if name is valid. name must be < 255 characters and not contain the path separator '\', brackets [] or = (maybe just restrict to alphanumeric?) returns non zero if name is not valid. The path separator is allowed, except for the first character, if allow_path is true.

int ACE_Configuration::validate_value_name ( const ACE_TCHAR * name ) [protected]

Test to see if name is valid. The default value for a key can be unnamed, which means either name is == 0 or name == '` is valid. Otherwise, it calls validate_name() to test name for the same rules that apply to keys.

ACE_Configuration& ACE_Configuration::operator= ( const ACE_Configuration & rhs ) [protected]

Member Data Documentation

ACE_TCHAR ACE_Configuration::NULL_String_ = '\0' [static]

* Represents the "NULL" string to simplify the internal logic.

ACE_Configuration_Section_Key ACE_Configuration::root_ [protected]

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


Public Types
enum	VALUETYPE { STRING, INTEGER, BINARY, INVALID }
	Enumeration for the various types of values we can store. More...
Public Member Functions
virtual	~ACE_Configuration (void)
	Destructor.
virtual const ACE_Configuration_Section_Key &	root_section (void) const
	Obtain a reference to the root section of this configuration.
virtual int	open_section (const ACE_Configuration_Section_Key &base, const ACE_TCHAR *sub_section, int create, ACE_Configuration_Section_Key &result)=0
virtual int	remove_section (const ACE_Configuration_Section_Key &key, const ACE_TCHAR *sub_section, int recursive)=0
	Removes a named section.
virtual int	enumerate_values (const ACE_Configuration_Section_Key &key, int index, ACE_TString &name, VALUETYPE &type)=0
virtual int	enumerate_sections (const ACE_Configuration_Section_Key &key, int index, ACE_TString &name)=0
virtual int	set_string_value (const ACE_Configuration_Section_Key &key, const ACE_TCHAR *name, const ACE_TString &value)=0
	Sets a string-typed value.
virtual int	set_integer_value (const ACE_Configuration_Section_Key &key, const ACE_TCHAR *name, u_int value)=0
	Sets a integer-typed value.
virtual int	set_binary_value (const ACE_Configuration_Section_Key &key, const ACE_TCHAR name, const void data, size_t length)=0
	Sets a binary-typed value.
virtual int	get_string_value (const ACE_Configuration_Section_Key &key, const ACE_TCHAR *name, ACE_TString &value)=0
	Gets a string-typed value.
virtual int	get_integer_value (const ACE_Configuration_Section_Key &key, const ACE_TCHAR *name, u_int &value)=0
	Gets an integer-typed value.
virtual int	get_binary_value (const ACE_Configuration_Section_Key &key, const ACE_TCHAR name, void &data, size_t &length)=0
	Gets a binary-typed value.
virtual int	find_value (const ACE_Configuration_Section_Key &key, const ACE_TCHAR *name, VALUETYPE &type)=0
virtual int	remove_value (const ACE_Configuration_Section_Key &key, const ACE_TCHAR *name)=0
	Removes a named value.
int	expand_path (const ACE_Configuration_Section_Key &key, const ACE_TString &path_in, ACE_Configuration_Section_Key &key_out, int create=1)
int	export_config (const ACE_TCHAR *filename)
int	import_config (const ACE_TCHAR *filename)
bool	operator== (const ACE_Configuration &rhs) const
bool	operator!= (const ACE_Configuration &rhs) const
Static Public Attributes
static ACE_TCHAR	NULL_String_ = '\0'
Protected Member Functions
	ACE_Configuration (void)
	Default ctor.
ACE_Section_Key_Internal *	get_internal_key (const ACE_Configuration_Section_Key &key)
	Resolves the internal key from a section key.
int	validate_name (const ACE_TCHAR *name, int allow_path=0)
int	validate_value_name (const ACE_TCHAR *name)
	ACE_Configuration (const ACE_Configuration &rhs)
ACE_Configuration &	operator= (const ACE_Configuration &rhs)
Protected Attributes
ACE_Configuration_Section_Key	root_