coco::infbound_eval Class Reference

#include <infb_evaluator.h>

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List of all members.

Public Types

typedef _Base::node_data_type node_data_type
typedef _Base::return_value return_value
typedef _Base::const_walker const_walker
typedef infbound_eval_type data_type

Public Member Functions

 infbound_eval (const std::vector< infbound > &__x, const variable_indicator &__v, const model &__m, std::vector< infbound > *__c)
 infbound_eval (const infbound_eval &__v)
 ~infbound_eval ()
expression_const_walker short_cut_to (const expression_node &__data)
void initialize ()
int initialize (const expression_node &__data)
void calculate (const expression_node &__data)
void retrieve_from_cache (const expression_node &__data)
int update (const infbound &__rval)
int update (const expression_node &__data, const infbound &__rval)
infbound calculate_value (bool eval_all)
int preorder (const node_data_type &__data)
void postorder (const node_data_type &__data)
int collect (const node_data_type &__data, const return_value &__rval)
int vcollect (const return_value &__rval)
return_value value ()
return_value vvalue ()
void vinit ()
virtual void cleanup (const node_data_type &__data)

Protected Member Functions

bool is_cached (const node_data_type &__data)

Protected Attributes

const variable_indicatorv_ind
infbound_eval_type eval_data


Detailed Description

Definition at line 60 of file infb_evaluator.h.


Member Typedef Documentation

This is the type of the walker, which is used for the short-cuts.

Reimplemented from coco::cached_evaluator_base< infbound_eval_type, expression_node, infbound,expression_const_walker >.

Definition at line 723 of file evaluator.h.

The data_type specifies the type of the internal data of the evaluator.

Definition at line 305 of file evaluator.h.

The node_data_type is the datatype of the nodes of the graph.

Reimplemented from coco::cached_evaluator_base< infbound_eval_type, expression_node, infbound,expression_const_walker >.

Definition at line 719 of file evaluator.h.

This type is the result type of the evaluator.

Reimplemented from coco::cached_evaluator_base< infbound_eval_type, expression_node, infbound,expression_const_walker >.

Definition at line 721 of file evaluator.h.


Constructor & Destructor Documentation

coco::infbound_eval::infbound_eval ( const std::vector< infbound > &  __x,
const variable_indicator __v,
const model __m,
std::vector< infbound > *  __c 
) [inline]

Definition at line 115 of file infb_evaluator.h.

coco::infbound_eval::infbound_eval ( const infbound_eval __v  )  [inline]

Definition at line 127 of file infb_evaluator.h.

coco::infbound_eval::~infbound_eval (  )  [inline]

Definition at line 129 of file infb_evaluator.h.


Member Function Documentation

void coco::infbound_eval::calculate ( const expression_node __data  )  [inline, virtual]

This method is called right after all children of a node have been visited. The __data parameter contains the node data of the graph node being visited.

Reimplemented from coco::cached_forward_evaluator_base< infbound_eval_type, expression_node, infbound, expression_const_walker >.

Definition at line 192 of file infb_evaluator.h.

infbound coco::infbound_eval::calculate_value ( bool  eval_all  )  [inline, virtual]

This method is called last for every graph node, and it produces the return value of the visitor. The parameter eval_all is true whether the node is a virtual node.

Reimplemented from coco::cached_forward_evaluator_base< infbound_eval_type, expression_node, infbound, expression_const_walker >.

Definition at line 711 of file infb_evaluator.h.

virtual void coco::cached_forward_evaluator_base< infbound_eval_type , expression_node , infbound , expression_const_walker >::cleanup ( const node_data_type __data  )  [inline, virtual, inherited]

The cleanup method is called just before calculate_value and should be used to clean up dynamically allocated data. The __data parameter contains the node data of the graph node being visited.

Definition at line 804 of file evaluator.h.

int coco::cached_forward_evaluator_base< infbound_eval_type , expression_node , infbound , expression_const_walker >::collect ( const node_data_type __data,
const return_value &  __rval 
) [inline, virtual, inherited]

This method is needed by a visitor (see VGTL documentation) and is called for each normal node everytime a child node has been visited passing the return value of the child. It is translated to a call to update.

Reimplemented from coco::_evaluator_base< infbound_eval_type, expression_node, infbound,expression_const_walker >.

Definition at line 750 of file evaluator.h.

int coco::infbound_eval::initialize ( const expression_node __data  )  [inline, virtual]

This method is called at a normal node before any children are visited. The __data parameter contains the node data of the graph node being visited. The return value determines how the graph walk proceeds.
<0perform a short-cut (the short_cut_to method will be called),
0don't visit the children, proceed with postorder,
>0continue with the walk by visiting the children.

Reimplemented from coco::cached_forward_evaluator_base< infbound_eval_type, expression_node, infbound, expression_const_walker >.

Definition at line 136 of file infb_evaluator.h.

void coco::infbound_eval::initialize (  )  [inline, virtual]

This method is called at a virtual node before any children are visited.

Reimplemented from coco::cached_forward_evaluator_base< infbound_eval_type, expression_node, infbound, expression_const_walker >.

Definition at line 134 of file infb_evaluator.h.

bool coco::infbound_eval::is_cached ( const node_data_type __data  )  [inline, protected, virtual]

This method checks whether the return value for this method is in the cache or can be calculated without visiting the children.

Reimplemented from coco::cached_forward_evaluator_base< infbound_eval_type, expression_node, infbound, expression_const_walker >.

Definition at line 69 of file infb_evaluator.h.

void coco::cached_forward_evaluator_base< infbound_eval_type , expression_node , infbound , expression_const_walker >::postorder ( const node_data_type __data  )  [inline, virtual, inherited]

This method is needed by a visitor (see VGTL documentation) and is called right after all children of a node have been visited. It is translated into calls to calculate and cleanup.

Reimplemented from coco::_evaluator_base< infbound_eval_type, expression_node, infbound,expression_const_walker >.

Definition at line 744 of file evaluator.h.

int coco::cached_forward_evaluator_base< infbound_eval_type , expression_node , infbound , expression_const_walker >::preorder ( const node_data_type __data  )  [inline, virtual, inherited]

This method is needed by a visitor (see VGTL documentation) and is called right before any children of a node are visited. It checks whether the result of this node is cached and calls either retrieve_from_cache and stops the downwards walk or calls initialize.

Reimplemented from coco::cached_evaluator_base< infbound_eval_type, expression_node, infbound,expression_const_walker >.

Definition at line 732 of file evaluator.h.

void coco::infbound_eval::retrieve_from_cache ( const expression_node __data  )  [inline, virtual]

The retrieve_from_cache method is called for retrieving the result for this node from the cache or calculate it without visiting the node's children.

Reimplemented from coco::cached_forward_evaluator_base< infbound_eval_type, expression_node, infbound, expression_const_walker >.

Definition at line 204 of file infb_evaluator.h.

expression_const_walker coco::infbound_eval::short_cut_to ( const expression_node __data  )  [inline, virtual]

The short_cut_to method is called whenever a short-cut is signalled during the graph walk, and the const_walker returned is the target of the short-cut.

Reimplemented from coco::cached_evaluator_base< infbound_eval_type, expression_node, infbound,expression_const_walker >.

Definition at line 131 of file infb_evaluator.h.

int coco::infbound_eval::update ( const expression_node __data,
const infbound &  __rval 
) [inline, virtual]

The update method is called for each virtual node everytime a child node has been visited passing the return value of the child. The return value has the following effect:
<0stop visiting children of this node,
0continue with the graph walk downwards the next child,
>0skip as many children.

Reimplemented from coco::cached_forward_evaluator_base< infbound_eval_type, expression_node, infbound, expression_const_walker >.

Definition at line 229 of file infb_evaluator.h.

int coco::infbound_eval::update ( const infbound &  __rval  )  [inline, virtual]

The update method is called for each virtual node everytime a child node has been visited passing the return value of the child. The __data parameter contains the node data of the graph node being visited. The return value has the following effect:
<0stop visiting children of this node,
0continue with the graph walk downwards the next child,
>0skip as many children.

Reimplemented from coco::cached_forward_evaluator_base< infbound_eval_type, expression_node, infbound, expression_const_walker >.

Definition at line 223 of file infb_evaluator.h.

This method is needed by a visitor (see VGTL documentation) and is called right before the end of the visit of a normal node to retrieve the return value. It is translated to a call to calculate_value with parameter false.

Reimplemented from coco::_evaluator_base< infbound_eval_type, expression_node, infbound,expression_const_walker >.

Definition at line 762 of file evaluator.h.

int coco::cached_forward_evaluator_base< infbound_eval_type , expression_node , infbound , expression_const_walker >::vcollect ( const return_value &  __rval  )  [inline, virtual, inherited]

This method is needed by a visitor (see VGTL documentation) and is called for each virtual node everytime a child node has been visited passing the return value of the child. It is translated to a call to update.

Reimplemented from coco::_evaluator_base< infbound_eval_type, expression_node, infbound,expression_const_walker >.

Definition at line 756 of file evaluator.h.

void coco::cached_forward_evaluator_base< infbound_eval_type , expression_node , infbound , expression_const_walker >::vinit (  )  [inline, inherited]

This method is needed by a visitor using recursive_short_cut_walk for traversing the graph. It is called before performing any graph walk when at a virtual node. It is translated to initialize.

Definition at line 771 of file evaluator.h.

return_value coco::cached_forward_evaluator_base< infbound_eval_type , expression_node , infbound , expression_const_walker >::vvalue (  )  [inline, virtual, inherited]

This method is needed by a visitor (see VGTL documentation) and is called right before the end of the visit of a virtual node to retrieve the return value. It is translated to a call to calculate_value with parameter true.

Reimplemented from coco::_evaluator_base< infbound_eval_type, expression_node, infbound,expression_const_walker >.

Definition at line 767 of file evaluator.h.


Member Data Documentation

The internal data of the evaluator

Definition at line 316 of file evaluator.h.

For caching a variable indicator is needed to check which nodes need not be re-evaluated.

Definition at line 427 of file evaluator.h.


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

Generated on Tue Feb 9 14:49:12 2010 for COCONUT API by  doxygen 1.5.8