Eclipse SUMO - Simulation of Urban MObility
Option Class Referenceabstract

A class representing a single program option. More...

#include <Option.h>

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Public Member Functions

virtual bool getBool () const
 Returns the stored boolean value. More...
 
const std::string & getDescription () const
 Returns the description of what this option does. More...
 
virtual double getFloat () const
 Returns the stored double value. More...
 
virtual int getInt () const
 Returns the stored integer value. More...
 
virtual const IntVectorgetIntVector () const
 Returns the stored integer vector. More...
 
virtual std::string getString () const
 Returns the stored string value. More...
 
virtual const StringVectorgetStringVector () const
 Returns the stored string vector. More...
 
virtual const std::string & getTypeName () const
 Returns the mml-type name of this option. More...
 
const std::string & getValueString () const
 Returns the string-representation of the value. More...
 
virtual bool isBool () const
 Returns the information whether the option is a bool option. More...
 
virtual bool isDefault () const
 Returns the information whether the option holds the default value. More...
 
virtual bool isFileName () const
 Returns the information whether this option is a file name. More...
 
bool isSet () const
 returns the information whether this options holds a valid value More...
 
bool isWriteable () const
 Returns the information whether the option may be set a further time. More...
 
void resetDefault ()
 Resets the option to be on its default value. More...
 
void resetWritable ()
 Resets the option to be writeable. More...
 
virtual bool set (const std::string &v, const std::string &orig, const bool append)=0
 Stores the given value. More...
 
void setDescription (const std::string &desc)
 Sets the description of what this option does. More...
 
virtual ~Option ()
 

Protected Member Functions

bool markSet (const std::string &orig)
 Marks the information as set. More...
 
 Option (bool set=false)
 Constructor. More...
 

Protected Attributes

std::string myTypeName
 A type name for this option (has presets, but may be overwritten) More...
 
std::string myValueString
 The original set string. More...
 

Private Attributes

bool myAmSet
 information whether the value is set More...
 
bool myAmWritable
 information whether the value may be changed More...
 
std::string myDescription
 The description what this option does. More...
 
bool myHaveTheDefaultValue
 information whether the value is the default value (is then set) More...
 

Detailed Description

A class representing a single program option.

The base class for a single program option. All options which hold values are derived from this class as the type of stored values may differ.

Most of the getter-methods throw exceptions because this base class is not meant to hold any values by itself. Instead, the derived classes implement the appropriate method (Option_Integer implements getInt, f.e.). So, when one tries to retrieve a value which is not of the type of the option, an exception will be thrown. This behaviour is meant to be valid, because errors like this one only occur when building and testing the application.

Due to described behaviour, this class has no public constructors. Only construction of derived, value and type holding, classes is allowed.

At the begin (after being constructed) an Option either has a default value or not. In dependance to this, myHaveTheDefaultValue is set. Also, myAmSet is set to true if a default value was supported. myAmWritable is set to true, indicating that a new value may be set.

Each option may have a description about its purpose stored. Furthermore, it stores a man-readable type name for this option.

Definition at line 73 of file Option.h.

Constructor & Destructor Documentation

◆ ~Option()

Option::~Option ( )
virtual

destructor

Definition at line 46 of file Option.cpp.

◆ Option()

Option::Option ( bool  set = false)
protected

Constructor.

This constructor should be used by derived classes. The boolean value indicates whether a default value was supplied or not.

Parameters
[in]setA default value was supplied

Definition at line 42 of file Option.cpp.

Member Function Documentation

◆ getBool()

bool Option::getBool ( ) const
virtual

Returns the stored boolean value.

Option_Bool returns the stored boolean in this method's reimplementation. All other option classes do not override this method which throws an InvalidArgument-exception.

Returns
Returns the stored boolean if being an instance of Option_Bool
Exceptions
InvalidArgumentIf the class is not an instance of Option_Bool

Reimplemented in Option_Bool.

Definition at line 74 of file Option.cpp.

Referenced by OptionsCont::getBool().

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◆ getDescription()

const std::string & Option::getDescription ( ) const

Returns the description of what this option does.

The description stored in myDescription is returned.

Returns
The description of this option's purpose

Definition at line 139 of file Option.cpp.

References myDescription.

Referenced by OptionsCont::getDescription(), OptionsCont::printHelpOnTopic(), and OptionsCont::writeConfiguration().

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◆ getFloat()

double Option::getFloat ( ) const
virtual

Returns the stored double value.

Option_Float returns the stored real number in this method's reimplementation. All other option classes do not override this method which throws an InvalidArgument-exception.

Returns
Returns the stored real number if being an instance of Option_Float
Exceptions
InvalidArgumentIf the class is not an instance of Option_Float

Reimplemented in Option_Float.

Definition at line 56 of file Option.cpp.

Referenced by OptionsCont::getFloat().

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◆ getInt()

int Option::getInt ( ) const
virtual

Returns the stored integer value.

Option_Integer returns the stored integer number in this method's reimplementation. All other option classesdo not override this method which throws an InvalidArgument-exception.

Returns
Returns the stored integer number if being an instance of Option_Integer
Exceptions
InvalidArgumentIf the class is not an instance of Option_Integer

Reimplemented in Option_Integer.

Definition at line 62 of file Option.cpp.

Referenced by OptionsCont::getInt().

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◆ getIntVector()

const IntVector & Option::getIntVector ( ) const
virtual

Returns the stored integer vector.

Option_IntVector returns the stored integer vector in this method's reimplementation. All other option classes do not override this method which throws an InvalidArgument-exception.

Returns
Returns the stored integer vector if being an instance of Option_IntVector
Exceptions
InvalidArgumentIf the class is not an instance of Option_IntVector

Reimplemented in Option_IntVector.

Definition at line 80 of file Option.cpp.

Referenced by OptionsCont::getIntVector().

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◆ getString()

std::string Option::getString ( ) const
virtual

Returns the stored string value.

Option_String returns the stored string in this method's reimplementation. Option_FileName's reimplementation is only to be used for single filename string-vector options. All other option classes do not override this method which throws an InvalidArgument-exception.

Returns
Returns the stored string if being an instance of Option_String or Option_FileName
Exceptions
InvalidArgumentIf the class is not an instance of Option_String or Option_FileName

Reimplemented in Option_String, and Option_FileName.

Definition at line 68 of file Option.cpp.

Referenced by OptionsCont::getString().

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◆ getStringVector()

const StringVector & Option::getStringVector ( ) const
virtual

Returns the stored string vector.

Option_StringVector returns the stored string vector in this method's reimplementation. All other option classes do not override this method which throws an InvalidArgument-exception.

Returns
Returns the stored string vector if being an instance of Option_StringVector
Exceptions
InvalidArgumentIf the class is not an instance of Option_StringVector

Reimplemented in Option_StringVector.

Definition at line 86 of file Option.cpp.

Referenced by OptionsCont::getStringVector().

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◆ getTypeName()

const std::string & Option::getTypeName ( ) const
virtual

Returns the mml-type name of this option.

The type name stored in myTypeName is returned.

Returns
The man-readable type name

Definition at line 151 of file Option.cpp.

References myTypeName.

Referenced by OptionsCont::getTypeName(), OptionsCont::printHelp(), OptionsCont::printHelpOnTopic(), OptionsCont::writeConfiguration(), and OptionsCont::writeSchema().

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◆ getValueString()

const std::string & Option::getValueString ( ) const
inline

Returns the string-representation of the value.

The stored value is encoded into a string and returned.

Returns
The stored value encoded into a string-

Definition at line 167 of file Option.h.

References myValueString.

Referenced by OptionsCont::getValueString(), Option_StringVector::set(), and OptionsCont::writeConfiguration().

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◆ isBool()

bool Option::isBool ( ) const
virtual

Returns the information whether the option is a bool option.

Returns false. Only Option_Bool overrides this method returning true.

Returns
true if the Option is an Option_Bool, false otherwise

Reimplemented in Option_Bool.

Definition at line 103 of file Option.cpp.

Referenced by OptionsCont::isBool(), OptionsCont::printHelp(), and OptionsCont::printHelpOnTopic().

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◆ isDefault()

bool Option::isDefault ( ) const
virtual

Returns the information whether the option holds the default value.

Returns
true if the option was not set from command line / configuration, false otherwise

Definition at line 109 of file Option.cpp.

References myHaveTheDefaultValue.

Referenced by OptionsCont::writeConfiguration().

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◆ isFileName()

bool Option::isFileName ( ) const
virtual

Returns the information whether this option is a file name.

Returns false. Only Option_FileName overrides this method returning true.

Returns
true if the Option is an Option_FileName, false otherwise

Reimplemented in Option_FileName.

Definition at line 115 of file Option.cpp.

Referenced by OptionsCont::writeConfiguration().

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◆ isSet()

bool Option::isSet ( ) const

returns the information whether this options holds a valid value

Returns
Whether a value has been set

Definition at line 50 of file Option.cpp.

References myAmSet.

Referenced by OptionsCont::checkDependingSuboptions(), OptionsCont::isUsableFileList(), and OptionsCont::writeConfiguration().

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◆ isWriteable()

bool Option::isWriteable ( ) const

Returns the information whether the option may be set a further time.

This method returns whether the option was not already set using command line options / configuration. This is done by returning the value of myAmWritable.

Returns
Whether the option may be set from the command line / configuration

Definition at line 121 of file Option.cpp.

References myAmWritable.

Referenced by OptionsCont::isWriteable(), OptionsCont::set(), and OptionsCont::setDefault().

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◆ markSet()

bool Option::markSet ( const std::string &  orig)
protected

Marks the information as set.

Sets the "myAmSet" - information. Returns whether the option was writeable before.

Returns
Whether the option was not set before.

Definition at line 92 of file Option.cpp.

References myAmSet, myAmWritable, myHaveTheDefaultValue, and myValueString.

Referenced by Option_Integer::set(), Option_String::set(), Option_Float::set(), Option_Bool::set(), Option_BoolExtended::set(), Option_IntVector::set(), and Option_StringVector::set().

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◆ resetDefault()

void Option::resetDefault ( )

Resets the option to be on its default value.

An option is on its default after initialisation with a value, but as soon as it gets set, it is no longer. This method resets the default-flag.

Definition at line 133 of file Option.cpp.

References myHaveTheDefaultValue.

Referenced by OptionsCont::setDefault().

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◆ resetWritable()

void Option::resetWritable ( )

Resets the option to be writeable.

An option is writable after initialisation, but as soon as it gets set, it is no longer writeable. This method resets the writable-flag.

Definition at line 127 of file Option.cpp.

References myAmWritable.

◆ set()

virtual bool Option::set ( const std::string &  v,
const std::string &  orig,
const bool  append 
)
pure virtual

Stores the given value.

This method is overriden by all option classes. The value is converted into the proper type and stored in "myValue". Then, "markSet" is called in order to know that a value has been set.

The method returns whether the value could be set (the return value from "markSet").

If the string could not be converted into the type, an InvalidArgument is thrown.

Returns
Whether the new value could be set
Exceptions
InvalidArgumentIf the value could not be converted

Implemented in Option_Integer, Option_String, Option_Float, Option_Bool, Option_BoolExtended, Option_IntVector, and Option_StringVector.

Referenced by OptionsCont::set().

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◆ setDescription()

void Option::setDescription ( const std::string &  desc)

Sets the description of what this option does.

The description stored in myDescription is returned.

Returns
The description of this option's purpose

Definition at line 145 of file Option.cpp.

References myDescription.

Referenced by OptionsCont::addDescription().

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Field Documentation

◆ myAmSet

bool Option::myAmSet
private

information whether the value is set

Definition at line 268 of file Option.h.

Referenced by isSet(), and markSet().

◆ myAmWritable

bool Option::myAmWritable
private

information whether the value may be changed

Definition at line 274 of file Option.h.

Referenced by isWriteable(), markSet(), and resetWritable().

◆ myDescription

std::string Option::myDescription
private

The description what this option does.

Definition at line 277 of file Option.h.

Referenced by getDescription(), and setDescription().

◆ myHaveTheDefaultValue

bool Option::myHaveTheDefaultValue
private

information whether the value is the default value (is then set)

Definition at line 271 of file Option.h.

Referenced by isDefault(), markSet(), and resetDefault().

◆ myTypeName

std::string Option::myTypeName
protected

◆ myValueString


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