Classes | Public Types | Public Member Functions | Protected Attributes
RTT::PropertyBag Class Reference

A container for holding references to properties. More...

#include <PropertyBag.hpp>

List of all members.

Classes

struct  FindPropType

Public Types

typedef Properties::const_iterator const_iterator
typedef Properties::iterator iterator
typedef std::vector< std::string > Names
typedef std::vector
< base::PropertyBase * > 
Properties
typedef Properties PropertyContainerType

Public Member Functions

void add (base::PropertyBase *p)
template<class T >
Property< T > & addProperty (const std::string &name, T &attr)
bool addProperty (base::PropertyBase &p)
iterator begin ()
const_iterator begin () const
void clear ()
bool empty () const
iterator end ()
const_iterator end () const
base::PropertyBasefind (const std::string &name) const
template<class T >
base::PropertyBasefindValue (const T &value) const
base::PropertyBasegetItem (int i) const
PropertiesgetProperties ()
const PropertiesgetProperties () const
Properties getProperties (const std::string &name) const
base::PropertyBasegetProperty (const std::string &name) const
Names getPropertyNames () const
template<class T >
Property< T > * getPropertyType (const std::string &name) const
const std::string & getType () const
void identify (base::PropertyIntrospection *pi) const
void identify (base::PropertyBagVisitor *pi) const
void list (Names &names) const
Names list () const
PropertyBagoperator<< (base::PropertyBase *item)
PropertyBagoperator<<= (const PropertyBag &source)
PropertyBagoperator= (const PropertyBag &orig)
bool ownProperty (base::PropertyBase *p)
bool ownsProperty (base::PropertyBase *p) const
 PropertyBag ()
 PropertyBag (const std::string &_type)
 PropertyBag (const PropertyBag &orig)
 The copy constructor. The copy constructor of the PropertyBag makes non-deep copies of its elements.
void remove (base::PropertyBase *p)
bool removeProperty (base::PropertyBase *p)
void setType (const std::string &newtype)
size_t size () const
 ~PropertyBag ()

Protected Attributes

Properties mowned_props
Properties mproperties
std::string type

Detailed Description

A container for holding references to properties.

Introduction

This class groups properties of different types into a single container. A PropertyBag object can handed to a marsh::Marshaller object which will serialize the contents of the PropertyBag.

All operations on a PropertyBag are non recursive. The PropertyBag itself is not aware of the possible hierarchical structure. You need to use the global scope functions for handling hierarchical structures.

A PropertyBag is not the owner of the properties within. It defines a group of properties, nothing more. When this group of properties contains another PropertyBag, this bag is considered as a 'pointer' to other properties. Even such a bag is not owned by the PropertyBag.

Constructing PropertyBags

It can happen in an application that a PropertyBag is filled with dynamically created Property objects. The bag is not responsible for cleaning up these objects once they are no longer needed. The application which uses the PropertyBag has to find a way of deleting the possible dangling pointers.

Warning:
The elements in a PropertyBag are unordered. Operations on the bag may change the relative order of the elements.

Using PropertyBags

To add a Property<ClassT> prop to a PropertyBag bag, use

     bag.add(&prop).
     

To retrieve this property, either use find or getProperty to retrieve a Property by name :

     base::PropertyBase* pb = bag.find( "name" ).
     Property<ClassT> pb = bag.getProperty( "name" ).
     

Both will return null if no such property exists.

See also:
base::PropertyBase, Property, Recursive Property Bag Operations.

Definition at line 96 of file PropertyBag.hpp.


Member Typedef Documentation

typedef Properties::const_iterator RTT::PropertyBag::const_iterator

A const iterator over the Properties.

Definition at line 114 of file PropertyBag.hpp.

typedef Properties::iterator RTT::PropertyBag::iterator

An iterator over the Properties.

Definition at line 110 of file PropertyBag.hpp.

typedef std::vector<std::string> RTT::PropertyBag::Names

The container to hold names of Properties.

Definition at line 119 of file PropertyBag.hpp.

The container in which the properties are stored.

Definition at line 102 of file PropertyBag.hpp.

Deprecated, use Properties.

Definition at line 106 of file PropertyBag.hpp.


Constructor & Destructor Documentation

The default constructor.

Definition at line 54 of file PropertyBag.cpp.

RTT::PropertyBag::PropertyBag ( const std::string &  _type)

The typed constructor.

Parameters:
typeThe type of PropertyBag.

Definition at line 58 of file PropertyBag.cpp.

The copy constructor. The copy constructor of the PropertyBag makes non-deep copies of its elements.

Definition at line 62 of file PropertyBag.cpp.

Destroy this object and destroy all owned properties.

Definition at line 68 of file PropertyBag.cpp.


Member Function Documentation

Add a valid property to the container. Analogous to addProperty.

Parameters:
pPointer to the property to be added.

Definition at line 73 of file PropertyBag.cpp.

template<class T >
Property<T>& RTT::PropertyBag::addProperty ( const std::string &  name,
T &  attr 
) [inline]

Adds a variable of any type as a property to this bag. A Property is created which causes contents of the property always to be in sync with the contents of attr.

Parameters:
nameThe name of this property
attrThe variable that will be aliased.
Returns:
the Property object by reference, which you can further query or document.

Definition at line 166 of file PropertyBag.hpp.

Add a valid property to the container.

Parameters:
pPointer to the property to be added.
Returns:
false if !p || !p->ready(), true otherwise.

Definition at line 105 of file PropertyBag.cpp.

Definition at line 353 of file PropertyBag.hpp.

Definition at line 354 of file PropertyBag.hpp.

Removes all PropertyBases from this bag, without deleting them. This is a not recursive function.

Definition at line 132 of file PropertyBag.cpp.

bool RTT::PropertyBag::empty ( ) const [inline]

Return true if no properties are present in this bag.

Definition at line 219 of file PropertyBag.hpp.

Definition at line 355 of file PropertyBag.hpp.

Definition at line 356 of file PropertyBag.hpp.

PropertyBase * RTT::PropertyBag::find ( const std::string &  name) const

Find the base::PropertyBase with name name. This function returns the first match.

Parameters:
nameThe name of the property to search for.
Returns:
The base::PropertyBase with this name, zero if it does not exist.

Definition at line 210 of file PropertyBag.cpp.

template<class T >
base::PropertyBase* RTT::PropertyBag::findValue ( const T &  value) const [inline]

Finds the base::PropertyBase by value. This function returns the first match.

Parameters:
valueThe value the Property should have
TThe data type of the value.
Returns:
a pointer to the property or zero if not found.

Definition at line 295 of file PropertyBag.hpp.

base::PropertyBase* RTT::PropertyBag::getItem ( int  i) const [inline]

Returns the i'th Property, starting from 0.

Returns:
zero if i is out of range.

Definition at line 254 of file PropertyBag.hpp.

Returns a list of all the property objects in this bag.

Definition at line 336 of file PropertyBag.hpp.

const Properties& RTT::PropertyBag::getProperties ( ) const [inline]

Returns a list of all the property objects in this bag.

Definition at line 341 of file PropertyBag.hpp.

PropertyBag::Properties RTT::PropertyBag::getProperties ( const std::string &  name) const

Returns a list of all property objects with the name name.

Definition at line 166 of file PropertyBag.cpp.

base::PropertyBase * RTT::PropertyBag::getProperty ( const std::string &  name) const

Get a Property with name name.

Parameters:
nameThe name of the property to search for.
Returns:
The PropertyBase with this name, zero if it does not exist.

Definition at line 218 of file PropertyBag.cpp.

Returns a list of all the names of the properties in this bag.

Definition at line 351 of file PropertyBag.hpp.

template<class T >
Property<T>* RTT::PropertyBag::getPropertyType ( const std::string &  name) const [inline]

Get the first Property with name name of a given type T

Parameters:
nameThe name of the property to search for.
TThe data type of the property.
Returns:
The Property<T>* with this name, zero if it does not exist with the given type.

Definition at line 242 of file PropertyBag.hpp.

const std::string& RTT::PropertyBag::getType ( ) const [inline]

Definition at line 329 of file PropertyBag.hpp.

Identify the contents of this bag through introspection.

Deprecated:
DO NOT USE. Will be removed in 2.x release series.

Definition at line 180 of file PropertyBag.cpp.

Identify the contents of this bag through introspection.

Deprecated:
DO NOT USE. Will be removed in 2.x release series.

Definition at line 190 of file PropertyBag.cpp.

void RTT::PropertyBag::list ( Names names) const

List the names of all properties.

Parameters:
namesThe container which will be used to store all available property names in.

Definition at line 144 of file PropertyBag.cpp.

std::vector< std::string > RTT::PropertyBag::list ( ) const

List the names of all properties.

Returns:
A container of names.

Definition at line 154 of file PropertyBag.cpp.

PropertyBag& RTT::PropertyBag::operator<< ( base::PropertyBase item) [inline]

The 'add' operator. Equivalent to add().

Parameters:
itemThe Property to add to this bag.

Definition at line 327 of file PropertyBag.hpp.

PropertyBag & RTT::PropertyBag::operator<<= ( const PropertyBag source)

The update operator. It updates this bag so it contains all PropertyBases of another bag, removing own PropertyBases if duplicate names exist in the source bag.

Definition at line 247 of file PropertyBag.cpp.

PropertyBag & RTT::PropertyBag::operator= ( const PropertyBag orig)

This assignment assigns all PropertyBases of another bag in this bag, making an exact copy or the original.

Definition at line 227 of file PropertyBag.cpp.

Set a property to be owned by this bag.

Definition at line 83 of file PropertyBag.cpp.

Returns true if this property is owned by this Bag.

Definition at line 95 of file PropertyBag.cpp.

Remove a property from the container. Analogous to removeProperty.

Parameters:
pPointer to the property to be removed.

Definition at line 78 of file PropertyBag.cpp.

Remove a property from the container.

Parameters:
pPointer to the property to be removed.

Definition at line 115 of file PropertyBag.cpp.

void RTT::PropertyBag::setType ( const std::string &  newtype) [inline]

Definition at line 331 of file PropertyBag.hpp.

size_t RTT::PropertyBag::size ( ) const [inline]

Get the number of Properties in this bag.

Definition at line 264 of file PropertyBag.hpp.


Member Data Documentation

Definition at line 359 of file PropertyBag.hpp.

Definition at line 358 of file PropertyBag.hpp.

std::string RTT::PropertyBag::type [protected]

Definition at line 370 of file PropertyBag.hpp.


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


rtt
Author(s): RTT Developers
autogenerated on Sat Jun 8 2019 18:46:37