te::fe::Filter Class Reference

A filter is any valid predicate expression. More...

#include <Filter.h>

Public Member Functions
Initializer Methods
Methods related to instantiation and destruction.
	Filter ()
	It initializes a new Filter. More...
	~Filter ()
	Destructor. More...
Accessor methods
Methods used to get or set properties.
void	setOp (AbstractOp *o)
	It sets the filter main operation (expression). More...
AbstractOp *	getOp () const
	It returns main filter operation. More...
void	add (ObjectId *id)
	It adds the object identifier to the list of identifiers. More...
ObjectId *	operator[] (size_t i) const
	It returns a specified object identifier. More...
ObjectId *	getOid (size_t i) const
	It returns a specified object identifier. More...
size_t	getNumberOfOids () const
	It returns the size of the list of object identifiers. More...
void	clear ()
	It clears the object identifier list and drop it off. More...

Private Member Functions
Not Allowed Methods
No copy allowed.
	Filter (const Filter &rhs)
	No copy constructor allowed. More...
Filter &	operator= (const Filter &rhs)
	No assignment operator allowed. More...

Private Attributes
std::vector< ObjectId * > *	m_ids
	Object identifiers. (NULL if m_op is informed) More...
AbstractOp *	m_op
	May be: SpatialOp, ComparisonOp or LogicOp. (NULL if m_ids is informed) More...

Detailed Description

A filter is any valid predicate expression.

A Filter contains a expression which is created by combining other expressions.

See also

AbstractOp, ObjectId

Definition at line 52 of file Filter.h.

Constructor & Destructor Documentation

Filter::Filter

(

)

It initializes a new Filter.

Definition at line 33 of file Filter.cpp.

Filter::~Filter

(

)

Destructor.

Definition at line 39 of file Filter.cpp.

References te::common::FreeContents().

te::fe::Filter::Filter ( const Filter &  rhs )

private

No copy constructor allowed.

Parameters

rhs	The other instance.

Member Function Documentation

void Filter::add

(

ObjectId *

id

)

It adds the object identifier to the list of identifiers.

Parameters

id	The object identifier to be added to the list of identifiers.

Note

The Filter object will take the ownership of the object identifier. So, you must not free it.

Definition at line 61 of file Filter.cpp.

void Filter::clear

(

)

It clears the object identifier list and drop it off.

Note

After calling this method it will be safe to set an operator.

Definition at line 86 of file Filter.cpp.

References te::common::FreeContents().

size_t Filter::getNumberOfOids

(

)

const

It returns the size of the list of object identifiers.

Returns

The size of the list of object identifiers.

Definition at line 81 of file Filter.cpp.

Referenced by te::map::QueryEncoder::getExpression().

te::fe::ObjectId * Filter::getOid

(

size_t

i

)

const

It returns a specified object identifier.

Parameters

i	The index of desired object identifier.

Returns

A specified object identifier.

Note

You must not clear the returned object identifier.

The method will not check the index range.

Definition at line 75 of file Filter.cpp.

Referenced by te::map::QueryEncoder::getExpression().

te::fe::AbstractOp * Filter::getOp

(

)

const

It returns main filter operation.

Returns

The main filter operation.

Definition at line 56 of file Filter.cpp.

Referenced by te::map::QueryEncoder::getExpression(), and te::fe::serialize::Save().

Filter& te::fe::Filter::operator= ( const Filter &  rhs )

private

No assignment operator allowed.

Parameters

rhs	The other instance.

Returns

A reference for this.

te::fe::ObjectId * Filter::operator[]

(

size_t

i

)

const

It returns a specified object identifier.

Parameters

i	The index of desired object identifier.

Returns

A specified object identifier.

Note

You must not clear the returned object identifier.

The method will not check the index range.

Definition at line 69 of file Filter.cpp.

void Filter::setOp

(

AbstractOp *

o

)

It sets the filter main operation (expression).

Parameters

o	The main operation (also called an expression).

Note

The Filter object will take the ownership of the given operation.

Definition at line 50 of file Filter.cpp.

Member Data Documentation

std::vector<ObjectId*>* te::fe::Filter::m_ids

private

Object identifiers. (NULL if m_op is informed)

Definition at line 169 of file Filter.h.

AbstractOp* te::fe::Filter::m_op

private

May be: SpatialOp, ComparisonOp or LogicOp. (NULL if m_ids is informed)

Definition at line 168 of file Filter.h.

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

• C:/TL5_2015_release/terralib5/src/terralib/fe/Filter.h
• C:/TL5_2015_release/terralib5/src/terralib/fe/Filter.cpp