Class of a selection statement. More...

#include <GaudiKernel/SelectStatement.h>

Inheritance diagram for SelectStatement:

Collaboration diagram for SelectStatement:

Public Member Functions
	SelectStatement (const std::string &s, long typ)
	Standard Constructor initializing select string. More...

	SelectStatement (const std::string &s)
	Standard Constructor initializing select string. More...

	SelectStatement ()
	Standard Constructor initializing function call. More...

virtual	~SelectStatement ()
	Standard Destructor. More...

long	type () const
	Access the type of the object. More...

const std::string &	criteria () const
	Access the selection string. More...

void	setCriteria (const std::string &crit)
	Set the type. More...

void	setActive (bool flag=true)
	Change activity flag. More...

bool	isActive () const
	Check if selection is active. More...

virtual bool	operator() (void *)
	Stupid default implementation. More...

Public Member Functions inherited from extend_interfaces1< ISelectStatement >
virtual	~extend_interfaces1 ()
	Virtual destructor. More...

Public Member Functions inherited from ISelectStatement
	DeclareInterfaceID (ISelectStatement, 2, 0)
	InterfaceID. More...

Public Member Functions inherited from IInterface
virtual void *	i_cast (const InterfaceID &) const =0
	main cast function More...

virtual std::vector< std::string >	getInterfaceNames () const =0
	Returns a vector of strings containing the names of all the implemented interfaces. More...

virtual unsigned long	addRef ()=0
	Increment the reference count of Interface instance. More...

virtual unsigned long	release ()=0
	Release Interface instance. More...

virtual unsigned long	refCount () const =0
	Current reference count. More...

virtual StatusCode	queryInterface (const InterfaceID &ti, void **pp)=0
	Set the void** to the pointer to the requested interface of the instance. More...

virtual	~IInterface ()
	Virtual destructor. More...

Protected Attributes
std::string	m_select
	Select string. More...

bool	m_isActive
	Activation flag. More...

long	m_type
	Type identifier. More...

Additional Inherited Members
Public Types inherited from implements1< ISelectStatement >
typedef implements1	base_class
	Typedef to this class. More...

typedef extend_interfaces1 < ISelectStatement >	extend_interfaces_base
	Typedef to the base of this class. More...

typedef extend_interfaces_base::ext_iids	interfaces
	MPL set of all the implemented interfaces. More...

Public Types inherited from extend_interfaces1< ISelectStatement >
typedef ISelectStatement::iid::iids::type	ext_iids
	MPL set of interfaces extended by this one. More...

Public Types inherited from ISelectStatement
enum	SelectType { FUNCTION =1<<1, STRING =1<<2, FULL =1<<3, OTHER =1<<4 }
	Statement type definition. More...

Public Types inherited from IInterface
enum	Status { SUCCESS = 1, NO_INTERFACE, VERSMISMATCH, LAST_ERROR }
	Return status. More...

typedef Gaudi::InterfaceId < IInterface, 0, 0 >	iid
	Interface ID. More...

typedef mpl::set1< iid >	ext_iids
	Extra interfaces. More...

Static Public Member Functions inherited from IInterface
static const InterfaceID &	interfaceID ()
	Return an instance of InterfaceID identifying the interface. More...

Detailed Description

Class of a selection statement.

A select statement can either contain

a string e.g. for refining an SQL statement
a function object, which will be called back in order to refine a selection. This happens in calling sequences like the following:

bool MySelect::operator()(IValueLocator* l) { float px, py, pz; if ( l->get("PX",px) && l->get("PY",py) && l->get("PZ",pz) ) { float mom = sqrt(px*px+py*py+pz*pz); return mom > 100.0 * GeV; } return false; }

if "true" is returned, the object will be loaded completely.

History: +------—+-------------------------------------------—+-----—+ | Date | Comment | Who | +------—+-------------------------------------------—+-----—+ | 21/10/99| Initial version. | MF | +------—+-------------------------------------------—+-----—+ Author: M.Frank Version: 1.0

Definition at line 46 of file SelectStatement.h.

Constructor & Destructor Documentation

SelectStatement::SelectStatement	(	const std::string &	s,
		long	typ
	)

inlineexplicit

Standard Constructor initializing select string.

Definition at line 49 of file SelectStatement.h.

   : m_select(s), m_isActive(false), m_type(typ)
   {
   }

SelectStatement::SelectStatement ( const std::string & s )

inlineexplicit

Standard Constructor initializing select string.

Definition at line 54 of file SelectStatement.h.

   : m_select(s),m_isActive(false), m_type(STRING)
   {
   }

SelectStatement::SelectStatement ( )

inlineexplicit

Standard Constructor initializing function call.

Definition at line 59 of file SelectStatement.h.

   : m_isActive(false), m_type(FUNCTION)
   {
   }

virtual SelectStatement::~SelectStatement ( )

inlinevirtual

Standard Destructor.

Definition at line 64 of file SelectStatement.h.

64 {

65 }

Member Function Documentation

const std::string& SelectStatement::criteria ( ) const

inlinevirtual

Access the selection string.

Implements ISelectStatement.

Definition at line 71 of file SelectStatement.h.

                                         {
     return m_select;
   }

bool SelectStatement::isActive ( ) const

inlinevirtual

Check if selection is active.

Implements ISelectStatement.

Definition at line 84 of file SelectStatement.h.

                             {
     return m_isActive;
   }

virtual bool SelectStatement::operator() ( void * )

inlinevirtual

Stupid default implementation.

Implements ISelectStatement.

Reimplemented in NTuple::Selector.

Definition at line 88 of file SelectStatement.h.

                                       {
     return true;
   }

void SelectStatement::setActive ( bool flag = true )

inlinevirtual

Change activity flag.

Implements ISelectStatement.

Definition at line 80 of file SelectStatement.h.

                                      {
     m_isActive = flag;
   }

void SelectStatement::setCriteria ( const std::string & crit )

inlinevirtual

Set the type.

Implements ISelectStatement.

Definition at line 75 of file SelectStatement.h.

                                              {
     m_select = crit;
     (m_select.length() > 0) ? m_type |= STRING : m_type &= ~STRING;
   }

long SelectStatement::type ( ) const

inlinevirtual

Access the type of the object.

Implements ISelectStatement.

Definition at line 67 of file SelectStatement.h.

                         {
     return m_type;
   }

Member Data Documentation

bool SelectStatement::m_isActive

protected

Activation flag.

Definition at line 95 of file SelectStatement.h.

std::string SelectStatement::m_select

protected

Select string.

Definition at line 93 of file SelectStatement.h.

long SelectStatement::m_type

protected

Type identifier.

Definition at line 97 of file SelectStatement.h.

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

GaudiKernel/GaudiKernel/SelectStatement.h

Public Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation