te::da::FromItem Class Reference

An abstract class that models a source of data in a query. More...

#include <FromItem.h>

Inheritance diagram for te::da::FromItem:

Public Types
typedef R	ReturnType
typedef QueryVisitor	VisitorType

Public Member Functions
virtual ReturnType	accept (VisitorType &guest) const =0
	It call the visit method from the guest object. More...
virtual FromItem *	clone () const =0
	It creates a new copy of this FromItem. More...
TE_DEFINE_VISITABLE	FromItem (const std::string &alias)
	Constructor. More...
	FromItem (const FromItem &rhs)
	Copy constructor. More...
const std::string &	getAlias () const
	It returns the alias associated to the source item. More...
FromItem &	operator= (const FromItem &rhs)
void	setAlias (const std::string &alias)
	It sets the alias for a from source item. More...
virtual	~FromItem ()
	Virtual destructor. More...

Protected Attributes
std::string	m_alias
	An alias for the output name. More...

Detailed Description

An abstract class that models a source of data in a query.

See also

From, DataSetType, DataSetName, SubSelect, DataSet, FromFunctionCall, Join

Definition at line 50 of file FromItem.h.

Member Typedef Documentation

typedef R te::common::BaseVisitable< QueryVisitor , R >::ReturnType

inherited

Definition at line 58 of file BaseVisitable.h.

typedef QueryVisitor te::common::BaseVisitable< QueryVisitor , R >::VisitorType

inherited

Definition at line 57 of file BaseVisitable.h.

Constructor & Destructor Documentation

TE_DEFINE_VISITABLE te::da::FromItem::FromItem ( const std::string &  alias )

inline

Constructor.

Parameters

alias

An alias to the source data item.

Definition at line 61 of file FromItem.h.

te::da::FromItem::FromItem

(

const FromItem &

rhs

)

Copy constructor.

virtual te::da::FromItem::~FromItem ( )

inlinevirtual

Virtual destructor.

Definition at line 67 of file FromItem.h.

Member Function Documentation

virtual ReturnType te::common::BaseVisitable< QueryVisitor , R >::accept ( VisitorType &  guest ) const

pure virtualinherited

It call the visit method from the guest object.

Parameters

guest

The guest or visitor.

Returns

Any valid value define by the template type R.

virtual FromItem* te::da::FromItem::clone ( ) const

pure virtual

It creates a new copy of this FromItem.

Implemented in te::da::Join, te::da::FromFunctionCall, te::da::SubSelect, and te::da::DataSetName.

Referenced by te::da::new_clone().

const std::string& te::da::FromItem::getAlias

(

)

const

It returns the alias associated to the source item.

Returns

The alias for the source item.

FromItem& te::da::FromItem::operator=

(

const FromItem &

rhs

)

Assignment operator.

void te::da::FromItem::setAlias

(

const std::string &

alias

)

It sets the alias for a from source item.

Parameters

alias

The alias for a from source item.

Note

The FromItem will take the ownership of the given alias.

Member Data Documentation

std::string te::da::FromItem::m_alias

protected

An alias for the output name.

Definition at line 93 of file FromItem.h.

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

• C:/AA_TL5_master/terralib5/src/terralib/dataaccess/query/FromItem.h