xtd::diagnostics::switch_object Class Reference

Inheritance diagram for xtd::diagnostics::switch_object:

Definition

Provides an abstract base class to create new debugging and tracing switches.

class core_export_ switch_object : public xtd::object

Inheritance

xtd::object → xtd::diagnostics::switch_object

Header

#include <xtd/diagnostics/switch_object>

Namespace

xtd::diagnostics

Library

xtd.core

Remarks

A switch provides an efficient mechanism for controlling tracing and debugging output at run time using external settings. The switch_object class implements default behavior for switches, allowing you to change the switch level at run time.

This class is the base class for the boolean_switch, source_switch and the trace_switch classes. These switches meet most debugging and tracing needs.

Notes to implementers

If you need trace levels, or mechanisms for setting switch levels different from those provided by boolean_switch, source_switch and trace_switch, you can inherit from switch_object. When inheriting from this class, you must implement the switch_setting method.

Public Aliases
using	attribute_collection
	Represents the attributes collection.

Public Properties
auto	attributes () const noexcept -> const attribute_collection &
	Gets the custom switch attributes.
auto	attributes () noexcept -> attribute_collection &
	Gets the custom switch attributes.
auto	attributes (const attribute_collection &attributes) noexcept -> void
	Sets the custom switch attributes.
auto	description () const noexcept -> const xtd::string &
	Gets a description of the switch.
auto	display_name () const noexcept -> const xtd::string &
	Gets a name used to identify the switch.
auto	value () const noexcept -> const xtd::string &
	Gets the value of the switch.
auto	value (const xtd::string &value) -> void
	Sets the value of the switch.

Public Methods
auto	equals (const xtd::object &obj) const noexcept -> bool override
	Determines whether the specified object is equal to the current object.
auto	equals (const switch_object &other) const noexcept -> bool override
	Determines whether the specified object is equal to the current object.

Protected constructors
	switch_object (const xtd::string &display_name, const xtd::string &description)
	Initializes a new instance of the switch_object class.

Protected Properties
auto	switch_setting () const noexcept -> xtd::int32
	Gets the current setting for this switch.
auto	switch_setting (xtd::int32 switch_setting) -> void
	Sets the current setting for this switch.

Protected Methods
virtual auto	get_supported_attributes () const noexcept -> xtd::array< xtd::string >
	Gets the custom attributes supported by the switch.
virtual auto	on_switch_setting_changed () -> void
	Invoked when the switch_setting property is changed.
virtual auto	on_value_changed () -> void
	Invoked when the value property is changed.

Additional Inherited Members
	object ()=default
	Create a new instance of the ultimate base class object.
virtual xtd::size	get_hash_code () const noexcept
	Serves as a hash function for a particular type.
virtual type_object	get_type () const noexcept
	Gets the type of the current instance.
template<class object_t>
xtd::unique_ptr_object< object_t >	memberwise_clone () const
	Creates a shallow copy of the current object.
virtual xtd::string	to_string () const
	Returns a xtd::string that represents the current object.
template<class object_a_t, class object_b_t>
static bool	equals (const object_a_t &object_a, const object_b_t &object_b) noexcept
	Determines whether the specified object instances are considered equal.
template<class object_a_t, class object_b_t>
static bool	reference_equals (const object_a_t &object_a, const object_b_t &object_b) noexcept
	Determines whether the specified object instances are the same instance.

Member Typedef Documentation

attribute_collection

using xtd::diagnostics::switch_object::attribute_collection

Represents the attributes collection.

Constructor & Destructor Documentation

switch_object()

xtd::diagnostics::switch_object::switch_object ( const xtd::string & display_name, const xtd::string & description )

protected

Initializes a new instance of the switch_object class.

Parameters

display_name	The name of the switch.
description	The description for the switch.

Remarks

When you create a new switch_object object, the value of the display_name parameter is used to find initial switch settings. The default value is an empty string ("").

Notes to inheritors

To set the value of the switch, set the switch_setting property in the constructor.

Member Function Documentation

attributes() [1/3]

auto xtd::diagnostics::switch_object::attributes ( ) const -> const attribute_collection &

nodiscardnoexcept

Gets the custom switch attributes.

Returns

A xtd::collections::specialized::string_dictionary containing the case-insensitive custom attributes for the trace switch.

attributes() [2/3]

auto xtd::diagnostics::switch_object::attributes ( ) -> attribute_collection &

nodiscardnoexcept

Gets the custom switch attributes.

Returns

A xtd::collections::specialized::string_dictionary containing the case-insensitive custom attributes for the trace switch.

attributes() [3/3]

auto xtd::diagnostics::switch_object::attributes ( const attribute_collection & attributes ) -> void

noexcept

Sets the custom switch attributes.

Parameters

attributes

A xtd::collections::specialized::string_dictionary containing the case-insensitive custom attributes for the trace switch.

description()

auto xtd::diagnostics::switch_object::description ( ) const -> const xtd::string &

nodiscardnoexcept

Gets a description of the switch.

Returns

The description of the switch. The default value is an empty string ("").

Remarks

This property should indicate the function of the switch; for example, "Enables tracing for a directory watcher component." The value is set by the descriptor parameter in the switch_object constructor.

display_name()

auto xtd::diagnostics::switch_object::display_name ( ) const -> const xtd::string &

nodiscardnoexcept

Gets a name used to identify the switch.

Returns

The name used to identify the switch. The default value is an empty string ("").

Remarks

When you create a new switch_object object, the display_name finds initial switch settings. For more information, see the switch_object constructor.

value() [1/2]

auto xtd::diagnostics::switch_object::value ( ) const -> const xtd::string &

nodiscardnoexcept

Gets the value of the switch.

Returns

A string representing the value of the switch.

Remarks

The on_value_changed method is called when the value of the value property is changed. The on_value_changed method parses the value of this property and converts it to an integer value, which is then used to set the switch_setting property.

Notes to inheritors

You should override the on_value_changed() method and provide a conversion operation that sets the appropriate switch_setting value for your switch.

value() [2/2]

auto xtd::diagnostics::switch_object::value

(

const xtd::string &

value

)

-> void

Sets the value of the switch.

Parameters

value

A string representing the value of the switch.

Remarks

The on_value_changed method is called when the value of the value property is changed. The on_value_changed method parses the value of this property and converts it to an integer value, which is then used to set the switch_setting property.

Notes to inheritors

You should override the on_value_changed() method and provide a conversion operation that sets the appropriate switch_setting value for your switch.

equals() [1/2]

auto xtd::diagnostics::switch_object::equals ( const xtd::object & obj ) const -> bool

nodiscardoverridevirtualnoexcept

Determines whether the specified object is equal to the current object.

Parameters

obj	The object to compare with the current object.

Returns

true if the specified object is equal to the current object. otherwise, false.

Reimplemented from xtd::object.

equals() [2/2]

auto xtd::diagnostics::switch_object::equals ( const switch_object & other ) const -> bool

nodiscardoverridevirtualnoexcept

Determines whether the specified object is equal to the current object.

Parameters

other

The object to compare with the current object.

Returns

true if the specified object is equal to the current object. otherwise, false.

Implements xtd::iequatable< xtd::diagnostics::switch_object >.

switch_setting() [1/2]

auto xtd::diagnostics::switch_object::switch_setting ( ) const -> xtd::int32

nodiscardprotectednoexcept

Gets the current setting for this switch.

Returns

The current setting for this switch. The default is zero.

switch_setting() [2/2]

auto xtd::diagnostics::switch_object::switch_setting ( xtd::int32 switch_setting ) -> void

protected

Sets the current setting for this switch.

Parameters

switch_setting

The current setting for this switch. The default is zero.

get_supported_attributes()

virtual auto xtd::diagnostics::switch_object::get_supported_attributes ( ) const -> xtd::array< xtd::string >

nodiscardprotectedvirtualnoexcept

Gets the custom attributes supported by the switch.

Returns

A string array that contains the names of the custom attributes supported by the switch, or null if there no custom attributes are supported.

Remarks

The default implementation for the get_supported_attributes method returns {} (empty array). If a switch is added in a configuration file and custom attributes are specified that are not included in the string array returned by get_supported_attributes, a configuration_exception is thrown when the switch is loaded.

Notes to Inheritors

When inheriting from the switch_object class or a derived class, you can override the get_supported_attributes() method to provide custom attributes for your class.

on_switch_setting_changed()

virtual auto xtd::diagnostics::switch_object::on_switch_setting_changed ( ) -> void

protectedvirtual

Invoked when the switch_setting property is changed.

Reimplemented in xtd::diagnostics::trace_switch.

on_value_changed()

virtual auto xtd::diagnostics::switch_object::on_value_changed ( ) -> void

protectedvirtual

Invoked when the value property is changed.

Remarks

The default implementation parses the new value of the value property to an integer value which it uses to set the switch_setting property.

Not to Inheritors

You should override this method and use a conversion that sets the appropriate switch_setting value for your switch.

Reimplemented in xtd::diagnostics::boolean_switch, xtd::diagnostics::source_switch, and xtd::diagnostics::trace_switch.

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

• xtd.core/include/xtd/diagnostics/switch_object.hpp