Aggregation function applied on some relation. More...

#include <Aggregate.h>

Inheritance diagram for souffle::ram::Aggregate:

Collaboration diagram for souffle::ram::Aggregate:

Public Member Functions
	Aggregate (Own< Operation > nested, AggregateOp fun, std::string rel, Own< Expression > expression, Own< Condition > condition, int ident)

void	apply (const NodeMapper &map) override
	Apply the mapper to all child nodes. More...

Aggregate *	clone () const override
	Create a clone (i.e. More...

std::vector< const Node * >	getChildNodes () const override
	Obtain list of all embedded child nodes. More...

Public Member Functions inherited from souffle::ram::RelationOperation
const std::string &	getRelation () const
	Get search relation. More...

	RelationOperation (std::string rel, int ident, Own< Operation > nested, std::string profileText="")

Public Member Functions inherited from souffle::ram::TupleOperation
std::vector< const Node * >	getChildNodes () const override
	Obtain list of all embedded child nodes. More...

int	getTupleId () const
	Get identifier. More...

void	setTupleId (int id)
	Set identifier. More...

	TupleOperation (int ident, Own< Operation > nested, std::string profileText="")

Public Member Functions inherited from souffle::ram::NestedOperation
void	apply (const NodeMapper &map) override
	Apply the mapper to all child nodes. More...

Operation &	getOperation () const
	Get nested operation. More...

const std::string &	getProfileText () const
	Get profile text. More...

	NestedOperation (Own< Operation > nested, std::string profileText="")

Public Member Functions inherited from souffle::ram::Node
bool	operator!= (const Node &other) const
	Inequality check for two RAM nodes. More...

bool	operator== (const Node &other) const
	Equivalence check for two RAM nodes. More...

virtual void	rewrite (const Node *oldNode, Own< Node > newNode)
	Rewrite a child node. More...

virtual	~Node ()=default

Public Member Functions inherited from souffle::ram::AbstractAggregate
	AbstractAggregate (AggregateOp fun, Own< Expression > expr, Own< Condition > cond)

std::vector< const Node * >	getChildNodes () const

const Condition &	getCondition () const
	Get condition. More...

const Expression &	getExpression () const
	Get target expression. More...

AggregateOp	getFunction () const
	Get aggregation function. More...

virtual	~AbstractAggregate ()=default

Protected Member Functions
bool	equal (const Node &node) const override
	Equality check for two RAM nodes. More...

void	print (std::ostream &os, int tabpos) const override
	Pretty print with indentation. More...

Protected Member Functions inherited from souffle::ram::RelationOperation
bool	equal (const Node &node) const override
	Equality check for two RAM nodes. More...

Protected Member Functions inherited from souffle::ram::TupleOperation
bool	equal (const Node &node) const override
	Equality check for two RAM nodes. More...

Protected Member Functions inherited from souffle::ram::NestedOperation
void	print (std::ostream &os, int tabpos) const override
	Pretty print with indentation. More...

Protected Member Functions inherited from souffle::ram::Operation
void	print (std::ostream &os) const override
	Print RAM node. More...

Protected Member Functions inherited from souffle::ram::AbstractAggregate
bool	equal (const Node &node) const

void	print (std::ostream &os, int) const

Additional Inherited Members
Static Protected Member Functions inherited from souffle::ram::Operation
static void	print (const Operation *operation, std::ostream &os, int tabpos)
	Pretty print jump-bed. More...

Protected Attributes inherited from souffle::ram::RelationOperation
const std::string	relation
	Search relation. More...

Protected Attributes inherited from souffle::ram::TupleOperation
int	identifier
	Identifier for the tuple, corresponding to its position in the loop nest. More...

Protected Attributes inherited from souffle::ram::NestedOperation
Own< Operation >	nestedOperation
	Nested operation. More...

const std::string	profileText
	Text used by the profiler. More...

Protected Attributes inherited from souffle::ram::AbstractAggregate
Own< Condition >	condition
	Aggregation tuple condition. More...

Own< Expression >	expression
	Aggregation expression. More...

const AggregateOp	function
	Aggregation function. More...

Detailed Description

Aggregation function applied on some relation.

For example:

t0.0 = COUNT FOR ALL t0 IN A

Applies the function COUNT to determine the number of elements in A.

Definition at line 53 of file Aggregate.h.

Constructor & Destructor Documentation

◆ Aggregate()

souffle::ram::Aggregate::Aggregate	(	Own< Operation >	nested,
		AggregateOp	fun,
		std::string	rel,
		Own< Expression >	expression,
		Own< Condition >	condition,
		int	ident
	)

inline

Definition at line 55 of file Aggregate.h.

                                                           {
         auto res = RelationOperation::getChildNodes();
         auto children = AbstractAggregate::getChildNodes();

References souffle::ram::TupleOperation::getChildNodes(), and souffle::ram::AbstractAggregate::getChildNodes().

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Member Function Documentation

◆ apply()

void souffle::ram::Aggregate::apply ( const NodeMapper & )

inlineoverridevirtual

Apply the mapper to all child nodes.

Reimplemented from souffle::ram::Node.

Definition at line 72 of file Aggregate.h.

          :
     void print(std::ostream& os, int tabpos) const override {
         os << times(" ", tabpos);

◆ clone()

Aggregate* souffle::ram::Aggregate::clone ( ) const

inlineoverridevirtual

Create a clone (i.e.

deep copy) of this node

Implements souffle::ram::RelationOperation.

Reimplemented in souffle::ram::ParallelAggregate.

Definition at line 67 of file Aggregate.h.

                                                {
         RelationOperation::apply(map);
         condition = map(std::move(condition));

References souffle::ram::NestedOperation::apply(), souffle::ram::AbstractAggregate::condition, souffle::ram::AbstractAggregate::expression, and souffle::map().

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◆ equal()

bool souffle::ram::Aggregate::equal ( const Node & ) const

inlineoverrideprotectedvirtual

Equality check for two RAM nodes.

Default action is that nothing needs to be checked.

Reimplemented from souffle::ram::Node.

Definition at line 91 of file Aggregate.h.

◆ getChildNodes()

std::vector<const Node*> souffle::ram::Aggregate::getChildNodes ( ) const

inlineoverridevirtual

Obtain list of all embedded child nodes.

Reimplemented from souffle::ram::Node.

Definition at line 60 of file Aggregate.h.

                                       {
         return new Aggregate(souffle::clone(&getOperation()), function, relation, souffle::clone(expression),
                 souffle::clone(condition), getTupleId());

◆ print()

void souffle::ram::Aggregate::print	(	std::ostream &	os,
		int	tabpos
	)		const

inlineoverrideprotectedvirtual

Pretty print with indentation.

Implements souffle::ram::Operation.

Reimplemented in souffle::ram::ParallelAggregate.

Definition at line 79 of file Aggregate.h.

                                       {
             os << " WHERE " << getCondition();
         }
         os << std::endl;
         RelationOperation::print(os, tabpos + 1);
     }
  
     bool equal(const Node& node) const override {
         const auto& other = static_cast<const Aggregate&>(node);
         return RelationOperation::equal(other) && AbstractAggregate::equal(node);

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

ram/Aggregate.h

Public Member Functions

Protected Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ Aggregate()

Member Function Documentation

◆ apply()

◆ clone()

◆ equal()

◆ getChildNodes()

◆ print()