trek::AndDependency Class Reference

This class determine a parameter's dependency a series of dependencies of which all must be true. More...

#include <and_dependency.h>

Inherits trek::Dependency.

Public Member Functions
int32_t	LoadFile (const char *filename)
	Loads the AndDependency definition from the specified file. More...
int32_t	SaveFile (const char *filename)
	Saves the AndDependency definition to the specified file. More...
Constructors, Destructor, and Other Basic Methods
	AndDependency ()
	Default constructor of the class.
	AndDependency (AndDependency &input)
	Copy constructor of the class.
virtual	~AndDependency ()
	Class destructor. More...
virtual Dependency *	Clone ()
	Creates and returns an extact copy of the object.
void	operator= (AndDependency &right_side)
	Provides the equal operator.
Dependency Methods
int32_t	AddDependency (Dependency *item)
	Adds a dependency. More...
int32_t	RemoveDependency (uint32_t index)
	Removes the dependency at the specified index. More...
void	ClearAllDependencies ()
	Removes all of the dependencies. More...
uint32_t	GetNumberOfDependencies ()
	Gets the number of dependencies. More...
int32_t	GetDependency (uint32_t index, Dependency **dep_ptr)
	Gets the dependency at the specified index. More...
virtual bool	Check ()
	Checks for the dependency. More...
virtual int32_t	ConfigureParameter (Packet *input)
Public Member Functions inherited from trek::Dependency
enum dependency_type	GetType ()
	Returns an enumeration for the type of dependency.
const char *	GetDependencyParameter ()
	Returns the parameter to use for the counter.
	Dependency ()
	Default constructor of the class.
	Dependency (Dependency &input)
	Copy constructor of the class.
virtual	~Dependency ()
	Class destructor. More...
void	operator= (Dependency &right_side)
	Provides the equal operator.
virtual void	Init ()
	Initializes the object.
Public Member Functions inherited from trek::NamedItem
void	SetName (const char *input_ptr)
	Sets the name of the item. More...
void	SetAlias (const char *input)
	Sets the alias of the item. More...
void	SetShortDescription (const char *input_ptr)
	Sets the short description of the item. More...
void	SetLongDescription (const char *input_ptr)
	Sets the long description of the item. More...
void	SetUserDescription (const char *input_ptr)
	Sets the user description of the item. More...
void	SetOwner (const char *input_ptr)
	Sets the owner of the item. More...
void	SetPath (const char *input_ptr)
	Sets the path for the item. More...
const char *	GetName ()
	Returns the name of the item.
const char *	GetAlias ()
	Returns the alias of the item.
const char *	GetShortDescription ()
	Returns the short description of the item.
const char *	GetLongDescription ()
	Returns the long description of the item.
const char *	GetUserDescription ()
	Returns the user description of the item.
const char *	GetOwner ()
	Returns the owner of the item.
const char *	GetPath ()
	Returns the path for the item.
int32_t	AddAttribute (const char *name, const char *value)
	Adds an attribute to the item. More...
void	GetAttributeList (StringArray &attr_array)
	Gets a list of the attribute names. More...
int32_t	GetAttribute (const char *name, char *value, uint32_t &value_len)
	Get the value of the specified attribute. More...
	NamedItem ()
	Default constructor of the class.
	NamedItem (NamedItem &input)
	Copy constructor of the class.
virtual	~NamedItem ()
	Class destructor. More...
void	operator= (NamedItem &right_side)
	Provides the equal operator.
bool	operator== (NamedItem &right_side)
	Provides the == operator.

Detailed Description

This class determine a parameter's dependency a series of dependencies of which all must be true.

Constructor & Destructor Documentation

~AndDependency()

trek::AndDependency::~AndDependency ( )

virtual

Class destructor.

Removes all resources created with this instance of the class.

Member Function Documentation

AddDependency()

int32_t trek::AndDependency::AddDependency

(

Dependency *

item

)

Adds a dependency.

Parameters

[in]

item

The dependency to add. A copy is made of the object and it is safe to delete the input.

Returns

SUCCESS

TREK_DATA_NULL_PTR

Example:

int32_t ret_value;
ComparisonDependency cd1, cd2;
AndDependency and_dep;
 
cd1.Configure( "MyParameter", COMP_TYPE_GT, 15, 1 );
cd2.Configure( "MyParameter", COMP_TYPE_LTE, 25, 1 );
 
// want dependency to be met when 15 < value <= 25
ret_value = and_dep.AddDependency( &cd1 );
ret_value = and_dep.AddDependency( &cd2 );

Check()

bool trek::AndDependency::Check ( )

virtual

Checks for the dependency.

Checks to see if all of the dependency items are true.

Returns

true if parameter dependency is met @retruns false if parameter dependency is not met

Example:

// NOTE: This code is very unlikely to be called directly by user code.
AndDependency cd;
 
if( cd.Check() )
    ;   // include in packet

Implements trek::Dependency.

ClearAllDependencies()

void trek::AndDependency::ClearAllDependencies

(

)

Removes all of the dependencies.

Example:

int32_t ret_value;
ComparisonDependency cd1, cd2;
AndDependency and_dep;
 
cd1.Configure( "MyParameter", COMP_TYPE_GT, 15, 1 );
cd2.Configure( "MyParameter", COMP_TYPE_LTE, 25, 1 );
 
ret_value = and_dep.AddDependency( &cd1 );
ret_value = and_dep.AddDependency( &cd2 );
 
// remove the dependencies
and_dep.ClearAllDependencies();

GetDependency()

int32_t trek::AndDependency::GetDependency	(	uint32_t	index,
		Dependency **	dep_ptr
	)

Gets the dependency at the specified index.

If successful the method returns the internal dependency at the requested index. The memory should not be deleted as it is still used by the class.

Parameters

[in]	index	The index to retreive
[in]	dep_ptr	The found dependency. Only set if return code indicates success.

Returns

SUCCESS

TREK_DATA_DOES_NOT_EXIST

Example:

int32_t ret_value;
ComparisonDependency cd1, cd2;
AndDependency and_dep;
Dependency *dep_ptr;
 
cd1.Configure( "MyParameter", COMP_TYPE_GT, 15, 1 );
cd2.Configure( "MyParameter", COMP_TYPE_LTE, 25, 1 );
 
ret_value = and_dep.AddDependency( &cd1 );
ret_value = and_dep.AddDependency( &cd2 );
 
// Get the dependency at the first index and print its type
if( and_dep.GetDependency( 0, &dep_ptr ) == SUCCESS )
    printf( "Dependency type: %s\n", dep_ptr->GetElementName() );

GetNumberOfDependencies()

uint32_t trek::AndDependency::GetNumberOfDependencies

(

)

Gets the number of dependencies.

Returns

The number of dependencies.

Example:

AndDepenency dep;
uint32_t num_dep;
 
num_dep = dep.GetNumberOfDependencies();

LoadFile()

int32_t trek::AndDependency::LoadFile

(

const char *

filename

)

Loads the AndDependency definition from the specified file.

Reads an XML format for the AndDependency. It can be written in with SaveFile.

Parameters

[in]

filename

The file to load the parameter object from.

Returns

SUCCESS

TREK_DATA_NULL_PTR

Other return codes

Example:

AndDependency cd;
 
ret_value = cd.LoadFile( "my_file.xml" );

RemoveDependency()

int32_t trek::AndDependency::RemoveDependency

(

uint32_t

index

)

Removes the dependency at the specified index.

Parameters

[in]

index

The index to remove.

Returns

SUCCESS

TREK_DATA_DOES_NOT_EXIST

Example:

int32_t ret_value;
ComparisonDependency cd1, cd2;
AndDependency and_dep;
 
cd1.Configure( "MyParameter", COMP_TYPE_GT, 15, 1 );
cd2.Configure( "MyParameter", COMP_TYPE_LTE, 25, 1 );
 
ret_value = and_dep.AddDependency( &cd1 );
ret_value = and_dep.AddDependency( &cd2 );
 
// remove the first dependency
ret_value = and_dep.RemoveDependency( 0 );

SaveFile()

int32_t trek::AndDependency::SaveFile

(

const char *

filename

)

Saves the AndDependency definition to the specified file.

Writes an XML format for the AndDependency. It can be read in with LoadFile.

Parameters

[in]

filename

The file to save the parameter object to.

Returns

SUCCESS

TREK_DATA_NULL_PTR

Other return codes

Example:

AndDependency cd;
 
ret_value = cd.SaveFile( "my_file.xml" );