In This Package:

ISelectStatement Class Reference

A select statement can either contain

• a string e.g.

More...

#include <GaudiKernel/ISelectStatement.h>

Inheritance diagram for ISelectStatement:

[legend]Collaboration diagram for ISelectStatement:[legend]List of all members.

Public Types
	FUNCTION = 1<<1
	STRING = 1<<2
	FULL = 1<<3
	OTHER = 1<<4
enum	SelectType { FUNCTION = 1<<1, STRING = 1<<2, FULL = 1<<3, OTHER = 1<<4 }
	Statement type definition. More...
	SUCCESS = 1
	Normal successful completion.
	NO_INTERFACE
	Requested interface is not available.
	VERSMISMATCH
	Requested interface version is incompatible.
	LAST_ERROR
	Last error.
enum	Status { SUCCESS = 1, NO_INTERFACE, VERSMISMATCH, LAST_ERROR }
	Return status. More...
Public Member Functions
virtual long	type () const =0
	Access the type of the object.
virtual const std::string &	criteria () const =0
	Access the selection string.
virtual void	setCriteria (const std::string &crit)=0
	Set the type.
virtual void	setActive (bool flag=true)=0
	Change activity flag.
virtual bool	isActive () const =0
	Check if selection is active.
virtual bool	operator() (void *val)=0
	Stupid default implementation.
virtual StatusCode	queryInterface (const InterfaceID &riid, void **ppvInterface)=0
	Query interfaces of Interface.
virtual unsigned long	addRef ()=0
	Increment the reference count of Interface instance.
virtual unsigned long	release ()=0
	Release Interface instance.
Static Public Member Functions
static const InterfaceID &	interfaceID ()
	Retrieve interface ID.

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Detailed Description

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.

Author:

M.Frank

Version:

1.0

Definition at line 37 of file ISelectStatement.h.

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Member Enumeration Documentation

enum ISelectStatement::SelectType

Statement type definition.

Enumerator:

FUNCTION
STRING
FULL
OTHER

Definition at line 40 of file ISelectStatement.h.

{ FUNCTION=1<<1, STRING=1<<2, FULL=1<<3, OTHER=1<<4 };

enum IInterface::Status [inherited]

Return status.

Enumerator:

SUCCESS	Normal successful completion.
NO_INTERFACE	Requested interface is not available.
VERSMISMATCH	Requested interface version is incompatible.
LAST_ERROR	Last error.

Reimplemented in IConversionSvc, IConverter, and IDataProviderSvc.

Definition at line 113 of file IInterface.h.

                {
    SUCCESS = 1,
    NO_INTERFACE,
    VERSMISMATCH,
    LAST_ERROR
  };

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Member Function Documentation

static const InterfaceID& ISelectStatement::interfaceID

(

)

[inline, static]

Retrieve interface ID.

Reimplemented from IInterface.

Definition at line 44 of file ISelectStatement.h.

{ return IID_ISelectStatement; }

virtual long ISelectStatement::type

(

)

const [pure virtual]

Access the type of the object.

Implemented in SelectStatement.

virtual const std::string& ISelectStatement::criteria

(

)

const [pure virtual]

Access the selection string.

Implemented in SelectStatement.

virtual void ISelectStatement::setCriteria

(

const std::string &

crit

)

[pure virtual]

Set the type.

Implemented in SelectStatement.

virtual void ISelectStatement::setActive

(

bool

flag = true

)

[pure virtual]

Change activity flag.

Implemented in SelectStatement.

virtual bool ISelectStatement::isActive

(

)

const [pure virtual]

Check if selection is active.

Implemented in SelectStatement.

virtual bool ISelectStatement::operator()

(

void *

val

)

[pure virtual]

Stupid default implementation.

Implemented in NTuple::Selector, and SelectStatement.

virtual StatusCode IInterface::queryInterface	(	const InterfaceID &	riid,
		void **	ppvInterface
	)			[pure virtual, inherited]

Query interfaces of Interface.

Parameters:

	riid	ID of Interface to be retrieved
	ppvInterface	Pointer to Location for interface pointer

Implemented in Algorithm, AlgTool, Auditor, ConversionSvc, Converter, DataSvc, EventSelectorDataStream, MinimalEventLoopMgr, PropertyMgr, SelectStatement, and Service.

virtual unsigned long IInterface::addRef

(

)

[pure virtual, inherited]

Increment the reference count of Interface instance.

Implemented in Algorithm, AlgTool, Auditor, Converter, EventSelectorDataStream, IFactory, PropertyMgr, SelectStatement, and Service.

virtual unsigned long IInterface::release

(

)

[pure virtual, inherited]

Release Interface instance.

Implemented in Algorithm, AlgTool, Auditor, Converter, EventSelectorDataStream, IFactory, PropertyMgr, SelectStatement, and Service.

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

• /home/dayabay/installs/trunk_2011_04_11_opt/NuWa-trunk/gaudi/GaudiKernel/GaudiKernel/ISelectStatement.h

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