BALL::Selector Class Reference

#include <BALL/KERNEL/selector.h>

Inheritance diagram for BALL::Selector:

Public Member Functions
Constructors and Destructors
	Selector ()
	Selector (const Selector &selector)
	Selector (const String &expression_string)
virtual	~Selector ()
Assignment
virtual void	clear ()
Selector &	operator= (const Selector &selector)
Predicates
bool	operator== (const Selector &selector) const
Processor related methods
virtual Processor::Result	operator() (Composite &composite)
virtual bool	start ()
Accessors
Size	getNumberOfSelectedAtoms () const
std::list< Atom * > &	getSelectedAtoms ()
void	setExpression (const Expression &expression)
const Expression &	getExpression () const
Public Member Functions inherited from BALL::UnaryProcessor< Composite >
	UnaryProcessor ()
	UnaryProcessor (const UnaryProcessor &)
virtual	~UnaryProcessor ()
virtual bool	finish ()

Protected Attributes
std::list< Atom * >	selected_atoms_
Expression	expression_

Additional Inherited Members
Public Types inherited from BALL::UnaryFunctor< Composite, Processor::Result >
typedef Processor::Result	result_type
typedef Composite	argument_type
typedef Composite &	argument_reference
typedef const Composite &	const_argument_reference
typedef Composite *	argument_pointer
typedef const Composite *	const_argument_pointer

Detailed Description

Atom Selection from BALL Expression.

This class takes a string that represents an Expression. It can then be applied to a Composite and will select all atoms matching the Expression. Refer to the documentation of Expression for a list of available predicates.

See also

Expression

Definition at line 30 of file selector.h.

Constructor & Destructor Documentation

BALL::Selector::Selector

(

)

Default constructor.

BALL::Selector::Selector

(

const Selector &

selector

)

Copy constructor.

BALL::Selector::Selector

(

const String &

expression_string

)

Construct a Selector with a string. The selector's expression is set to expression_string.

virtual BALL::Selector::~Selector ( )

virtual

Destructor.

Member Function Documentation

virtual void BALL::Selector::clear ( )

virtual

Clear method.

const Expression& BALL::Selector::getExpression

(

)

const

Return the expression.

Size BALL::Selector::getNumberOfSelectedAtoms

(

)

const

Return the number of atoms selected during the last application.

std::list<Atom*>& BALL::Selector::getSelectedAtoms

(

)

Return a list containing pointers to all selected Atoms

virtual Processor::Result BALL::Selector::operator() ( Composite &  composite )

virtual

Access operator. If the given Composite is an Atom and the current expression_ is fulfilled for that atom, select it by calling Composite::select .

Reimplemented from BALL::UnaryProcessor< Composite >.

Selector& BALL::Selector::operator=

(

const Selector &

selector

)

Assignment operator.

bool BALL::Selector::operator==

(

const Selector &

selector

)

const

Equality.

void BALL::Selector::setExpression

(

const Expression &

expression

)

Define the expression.

virtual bool BALL::Selector::start ( )

virtual

Processor start method. This method is needed to reset the internal counter for the number of selected atoms.

Reimplemented from BALL::UnaryProcessor< Composite >.

Member Data Documentation

Expression BALL::Selector::expression_

protected

Definition at line 126 of file selector.h.

std::list<Atom*> BALL::Selector::selected_atoms_

protected

Definition at line 125 of file selector.h.