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 void	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

ReturnType

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

inherited

Definition at line 58 of file BaseVisitable.h.

VisitorType

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

inherited

Definition at line 57 of file BaseVisitable.h.

Constructor & Destructor Documentation

FromItem() [1/2]

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.

FromItem() [2/2]

te::da::FromItem::FromItem

(

const FromItem &

rhs

)

Copy constructor.

~FromItem()

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

inlinevirtual

Virtual destructor.

Definition at line 67 of file FromItem.h.

Member Function Documentation

accept()

virtual ReturnType te::common::BaseVisitable< QueryVisitor , void >::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.

clone()

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().

getAlias()

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

(

)

const

It returns the alias associated to the source item.

Returns

The alias for the source item.

operator=()

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

(

const FromItem &

rhs

)

Assignment operator.

setAlias()

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

m_alias

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:

• /home/castejon/castejon_files/develop/terralib5/git_master/src/terralib/dataaccess/query/FromItem.h