SheafSystem  0.0.0.0
fields::property_disc_iterator Class Referenceabstract

Abstract iterator over the discretization of the property section of a field_vd. Concurrently traverses the schema of both the coordinates and property sections of a field, returning to the client at each property discretization member, with enough context to evaluate the coordinate section at the property discretization point. More...

#include <property_disc_iterator.h>

Inheritance diagram for fields::property_disc_iterator:
sheaf::depth_first_iterator sheaf::any fields::property_disc_iterator_1_1 fields::property_disc_iterator_1_2 fields::property_disc_iterator_1_3 fields::property_disc_iterator_4_2 fields::property_disc_iterator_4_3

Classes

struct  depth_flags_type
 Relative depth flags type. More...
 

PROPERTY_DISC_ITERATOR FACET

section_iteration_state _coord_state
 Descriptor for coordinate section iteration. More...
 
section_iteration_state _prop_state
 Descriptor for property section iteration. More...
 
depth_flags_type _at
 True if current iteration is a member of the subposet associated with the flag. More...
 
depth_flags_type _above
 True if current iteration is above the subposet associated with the flag. More...
 
static property_disc_iteratornew_property_disc_iterator (const section_space_schema_member &xcoords_schema, const section_space_schema_member &xprop_schema)
 Creates an iterator appropriate for xcoords and xprop. More...
 
 ~property_disc_iterator ()
 Destructor. More...
 
const section_space_schema_membercoordinates_schema () const
 The coordinates field schema member which is being iterated over. More...
 
const section_space_schema_memberproperty_schema () const
 The property field schema member which is being iterated over. More...
 
const base_space_posetbase_space () const
 The base space shared by both schema. More...
 
const subposetcoordinates_evaluation () const
 The evaluation subposet for the coordinates. More...
 
const subposetproperty_evaluation () const
 The evaluation subposet for the property. More...
 
int db () const
 The dimension of the current evaluation member. More...
 
pod_index_type type_id () const
 The type id of the current member. More...
 
std::string type_name () const
 The type name of the current member. More...
 
section_evaluatorcoordinate_evaluator () const
 The coordinate field evaluator associated with the current evaluation member. More...
 
section_evaluatorproperty_evaluator () const
 The property field evaluator associated with the current evaluation member. More...
 
const block< discretization_context > & coordinate_discretization_members () const
 The coordinate discretization members in the downset of the current evaluation member. More...
 
const block< discretization_context > & property_discretization_members () const
 The property discretization members in the downset of the current evaluation member. More...
 
virtual void get_prop_disc_values (const sec_vd &xsec)=0
 The gets the values of xsec at the property discretization points. More...
 
 property_disc_iterator ()
 Default constructor. More...
 
 property_disc_iterator (const property_disc_iterator &xother)
 Copy constructor; disabled. More...
 
void initialize_iteration (const field_vd &xfield, order_type xorder)
 Initializes this for iteration of type xorder over the schema of xfield. More...
 
void initialize_iteration (const section_space_schema_member &xcoordinates_schema, const section_space_schema_member &xproperty_schema, order_type xorder)
 Initializes this for iteration of type xorder over xcoordinates_schema and xproperty_schema. More...
 

DEPTH_FIRST_ITERATOR FACET

virtual void force_is_done ()
 Force the iterator to be done. More...
 

ANY FACET

virtual bool is_ancestor_of (const any *xother) const
 True if other conforms to this. More...
 
virtual property_disc_iteratorclone () const =0
 Make a new instance of the same type as this. More...
 
bool invariant () const
 The class invariant. More...
 

Additional Inherited Members

- Public Types inherited from sheaf::depth_first_iterator
enum  order_type {
  PREORDER, POSTORDER, LINKORDER, BIORDER,
  TRIORDER, NOT_AN_ORDER
}
 The types of order in which the iterator will visit the members of the poset. Determines which actions are exported to the client. More...
 
enum  action_type { PREVISIT_ACTION, LINK_ACTION, POSTVISIT_ACTION, NOT_AN_ACTION }
 The types of action a client should take when the iterator returns control to the client. More...
 
- Public Member Functions inherited from sheaf::depth_first_iterator
depth_first_iteratoroperator= (const depth_first_iterator &xother)
 Assignment operator. More...
 
virtual ~depth_first_iterator ()
 Destructor. More...
 
bool invariant () const
 The class invariant. More...
 
order_type order () const
 The order of the iteration. Determines which actions are exported to the client. More...
 
virtual bool is_initialized () const
 True if this has been initialized for iteration with respect to a specific anchor. More...
 
virtual abstract_poset_memberanchor ()
 The poset member whose downset is being iterated over; the top member of the domain of iteration (mutable version). More...
 
virtual const abstract_poset_memberanchor () const
 The poset member whose downset is being iterated over; the top member of the domain of iteration (const version). More...
 
virtual bool anchor_is_ancestor_of (const abstract_poset_member &xmbr) const
 True if xmbr conforms to the type of anchor of this. More...
 
bool descending () const
 True if iterating over down set of anchor. More...
 
bool strict () const
 True if iterating over xstrict up/down set of anchor. More...
 
subposetfilter ()
 The subposet which is the filter; Defines what is passed, not what is blocked. More...
 
bool is_done () const
 True if iteration finished. More...
 
void next ()
 Makes this the next member of the subset. More...
 
void truncate ()
 Makes this the next member of the subset which is not less than old this, i.e. the depth-first descent is truncated and the cover of this is not visited. More...
 
virtual void next (bool xtruncate)
 Makes this the next member of the subset. If action() == PREVISIT_ACTION and xtruncate, new this is not less than old this, i.e. the depth-first descent is truncated and the cover of this is not visited. If action() != PREVISIT_ACTION, xtruncate is ignored. More...
 
virtual void reset (bool xreset_markers=true)
 Restarts the iteration over the down set of anchor(). More...
 
int ct (bool xreset=false)
 The number of members of the iteration set, from the current member to the end, inclusive. If xreset, reset before computing the count. More...
 
bool has_visited (pod_index_type xhub_id) const
 True if this has already visited member with hub id xhub_id. More...
 
bool has_visited (const scoped_index &xid) const
 True if this has already visited member with id xid. More...
 
bool has_visited (const abstract_poset_member *xmbr) const
 True if this has already visited member xmbr. More...
 
void put_has_visited (pod_index_type xhub_id, bool xvalue)
 Set the visited marker for hub id xhub_id to xvalue. Intended for use reseting iterator without having to reset entire collection of markers. More...
 
void put_has_visited (const scoped_index &xid, bool xvalue)
 Set the visisted marker for id xid to xvalue. Intended for use reseting iterator without having to reset entire collection of markers. More...
 
bool visit_once () const
 True if traversal should only visit a member once; that is, it should not revisit members it has already visited. More...
 
void put_visit_once (bool xvisit_once)
 Set visit_once() to xvisit_once. More...
 
bool is_maximal () const
 True if the current member has no greater member within the subposet visited by this iterator. More...
 
const scoped_indexgreater_index () const
 The index of the greater member of the current link. More...
 
const scoped_indexlesser_index () const
 The index of the lesser member of the current link. More...
 
action_type action () const
 The type of action the client should take when the iterator returns control to the client. More...
 
void erase_cover ()
 Schedules the lesser member entry in the cover of the greater member of the current link for deletion on the next call to next(). Warning: this function can change the state of the the cover relation graph in unpredictable ways. Use only if you know what you are doing. More...
 
const scoped_indexindex () const
 The index of the current member of the iteration. More...
 
size_t depth () const
 The length of the path from anchor() to the current member. More...
 
- Public Member Functions inherited from sheaf::any
bool is_same_type (const any *other) const
 True if other is the same type as this. More...
 
virtual ~any ()
 Destructor. More...
 
bool invariant_check () const
 True if invariant checking is enabled. More...
 
void enable_invariant_check () const
 Enable invariant checking. More...
 
void disable_invariant_check () const
 Disable invariant check. Intended for preventing recursive calls to invariant and for suppressing invariant checking during multi-phase initialization. More...
 
int disable_invariance_check_request_depth () const
 Number of times disable_invariant_check has been called without matching call to enable_invariant_check. More...
 
- Static Public Attributes inherited from sheaf::depth_first_iterator
static const char * NULL_FILTER = ""
 Placeholder for null filter. More...
 
- Protected Types inherited from sheaf::depth_first_iterator
enum  iterator_state {
  FIRST, INIT_COVER_ITERATOR, TEST_HAS_VISITED, INC_COVER_ITERATOR,
  ERASE_COVER_ITERATOR, DESCEND, TEST_PATH_TAIL, ASCEND,
  EXECUTE_PREVISIT_ACTION, EXECUTE_LINK_ACTION, EXECUTE_POSTVISIT_ACTION, FINISH,
  NOT_A_STATE
}
 The states for the finite state machine that controls iteration. More...
 
enum  iterator_token { PASS, FAIL }
 The input tokens for the finite state machine. More...
 
typedef const iterator_state(* transition_fcn_type)[FAIL+1]
 
- Protected Member Functions inherited from sheaf::depth_first_iterator
 depth_first_iterator ()
 Default constructor; creates an unattached iterator,. More...
 
 depth_first_iterator (const depth_first_iterator &xother)
 Copy constructor. More...
 
void first ()
 Moves this to the first member of the iteration. More...
 
void mark_visited (abstract_poset_member *xmbr)
 Mark xmbr as visited. Warning: this function can change the state of the iteration in unpredictable ways. Use only if you know what you are doing. More...
 
void mark_not_visited (abstract_poset_member *xmbr)
 Mark xmbr as not visited. Warning: this function can change the state of the iteration in unpredictable ways. Use only if you know what you are doing. More...
 
virtual void attach_item ()
 Attaches the item handle to the current index. Empty in this class; intended for redefinition in descendants. More...
 
virtual void detach_item ()
 Detaches the item handle to the current index. Empty in this class; intended for redefinition in descendants. More...
 
void initialize_order (order_type xorder)
 Initializes _order and _transition_fcn. More...
 
void initialize_traversal (const abstract_poset_member &xanchor)
 Initializes the anchor, has_visited markers and filter. More...
 
void initialize_traversal (pod_index_type xanchor_hub_id)
 Initializes the anchor, has_visited markers and filter. More...
 
void initialize_traversal (const scoped_index &xanchor_id)
 Initializes the anchor, has_visited markers and filter. More...
 
void initialize_anchor (const abstract_poset_member &xanchor)
 Initializes the anchor. More...
 
virtual void initialize_has_visited (const abstract_poset_member &xanchor)
 Initializes the has_visited markers. More...
 
zn_to_boolhas_visited () const
 The marker bit vector. /. More...
 
void put_has_visited (zn_to_bool *xhas_visited)
 Sets _has_visited to xhas_visited. /. More...
 
bool filter (pod_index_type xhub_id) const
 The value of the filter at hub id xhub_id. More...
 
bool filter (const scoped_index &xid) const
 The value of the filter at id xid. More...
 
void initialize_filter ()
 Initializes the filter subposet from the client filter. More...
 
void initialize_filter (const subposet &xfilter)
 Initializes the client filter to xfilter then initializes the filter from the client filter. More...
 
void initialize_filter (pod_index_type xfilter_hub_id)
 Initializes the client filter to the subposet with hub id xfilter_hub_id then initializes the filter from the client filter. More...
 
void initialize_filter (const scoped_index &xfilter_id)
 Initializes the client filter to the subposet with id xfilter_id then initializes the filter from the client filter. More...
 
void initialize_filter (const std::string &xfilter_name)
 Initializes the client filter to the subposet with name xfilter_name then initializes the filter from the client filter. More...
 
void release_cover_id_space_iterators ()
 Release the cover iterators back to the pool of iterators. More...
 
- Protected Member Functions inherited from sheaf::any
 any ()
 default constructor More...
 
- Protected Attributes inherited from sheaf::depth_first_iterator
abstract_poset_member_anchor
 The top member of the down set being iterated over. More...
 
action_type _action
 The type of action the client should take; the state of the iterator. More...
 
scoped_index _index
 The index of the lesser end of the current link; the current item in the iteration. More...
 
scoped_index _greater_index
 The index of the greater member of the current link. More...
 
scoped_index _lesser_index
 The index of the lesser member of the current link. More...
 
subposet _client_filter
 The filter specified by the client. More...
 
bool _new_filter
 True if this allocated a new filter;. More...
 
bool _descending
 True if iterating over the up/down set of anchor. More...
 
bool _strict
 True if iterating over the strict up/down set of anchor. More...
 
order_type _order
 The order of the iteration. More...
 
const iterator_state(* _transition_fcn )[FAIL+1]
 The current state transition function for the iterator finite state machine. Points to one of the predefined transition functions. More...
 
iterator_state _state
 The current state of iteration. More...
 
index_space_iterator_path_head_lc
 The lower cover iterator for the head of the path to the current member of the iteration. More...
 
index_space_iterator_path_head
 The head of the path to the current member of the iteration lesser_index() == this->index() == **_path_head == lesser member of current link. More...
 
std::stack< index_space_iterator * > _path_tail
 The tail of the path to the current member of the iteration greater_index() == **(_path_tail.top()) == greater member of current link. More...
 
std::stack< pod_index_type_filtered_path_tail
 The tail of the filtered path to the current member of the iteration. Contains only members which pass the filter; equivalent to the path in the subposet selected by the filter. More...
 
bool _visit_once
 True if traversal should only visit a member once; that is, it should not revisit members it has already visited. More...
 
- Static Protected Attributes inherited from sheaf::depth_first_iterator
static const char * iterator_state_names [NOT_A_STATE+1]
 The names of the iterator states, convenient for debugging. More...
 
static const iterator_state PREORDER_TRANSITION_FCN [NOT_A_STATE-1][FAIL+1]
 The predefined transition function for postorder iteration. Defines the next state for each combination of state and input token, except for state FINISH, which is always a terminal state. More...
 
static const iterator_state POSTORDER_TRANSITION_FCN [NOT_A_STATE-1][FAIL+1]
 The predefined transition function for postorder iteration. Defines the next state for each combination of state and input token, except for state FINISH, which is always a terminal state. More...
 
static const iterator_state LINKORDER_TRANSITION_FCN [NOT_A_STATE-1][FAIL+1]
 The predefined transition function for linkorder iteration. Defines the next state for each combination of state and input token, except for state FINISH, which is always a terminal state. More...
 
static const iterator_state BIORDER_TRANSITION_FCN [NOT_A_STATE-1][FAIL+1]
 The predefined transition function for biorder iteration. Defines the next state for each combination of state and input token, except for state FINISH, which is always a terminal state. More...
 
static const iterator_state TRIORDER_TRANSITION_FCN [NOT_A_STATE-1][FAIL+1]
 The predefined transition function for triorder iteration. Defines the next state for each combination of state and input token, except for state FINISH, which is always a terminal state. More...
 
static const transition_fcn_type STD_TRANSITION_FCNS [NOT_AN_ORDER+1]
 The set of predefined transition functions. More...
 

Detailed Description

Abstract iterator over the discretization of the property section of a field_vd. Concurrently traverses the schema of both the coordinates and property sections of a field, returning to the client at each property discretization member, with enough context to evaluate the coordinate section at the property discretization point.

Definition at line 56 of file property_disc_iterator.h.

Constructor & Destructor Documentation

◆ ~property_disc_iterator()

fields::property_disc_iterator::~property_disc_iterator ( )

Destructor.

Definition at line 158 of file property_disc_iterator.cc.

References coordinates_schema().

Referenced by new_property_disc_iterator().

◆ property_disc_iterator() [1/2]

fields::property_disc_iterator::property_disc_iterator ( )
inlineprotected

Default constructor.

Definition at line 153 of file property_disc_iterator.h.

◆ property_disc_iterator() [2/2]

fields::property_disc_iterator::property_disc_iterator ( const property_disc_iterator xother)
inlineprotected

Copy constructor; disabled.

Definition at line 158 of file property_disc_iterator.h.

Member Function Documentation

◆ base_space()

const fiber_bundle::base_space_poset & fields::property_disc_iterator::base_space ( ) const

The base space shared by both schema.

Postcondition

Definition at line 212 of file property_disc_iterator.cc.

References coordinates_evaluation(), and sheaf::poset_state_handle::is_same_state().

Referenced by property_schema().

◆ clone()

fields::property_disc_iterator * fields::property_disc_iterator::clone ( ) const
pure virtual

Make a new instance of the same type as this.

Is Abstract.

Postcondition
  • result != 0

Reimplemented from sheaf::depth_first_iterator.

Implemented in fields::property_disc_iterator_1_3, fields::property_disc_iterator_1_2, fields::property_disc_iterator_4_3, fields::property_disc_iterator_4_2, and fields::property_disc_iterator_1_1.

Definition at line 578 of file property_disc_iterator.cc.

References invariant().

Referenced by is_ancestor_of().

◆ coordinate_discretization_members()

const sheaf::block< fiber_bundle::discretization_context > & fields::property_disc_iterator::coordinate_discretization_members ( ) const

The coordinate discretization members in the downset of the current evaluation member.

Precondition
  • !is_done()

Definition at line 388 of file property_disc_iterator.cc.

References property_discretization_members().

Referenced by property_evaluator().

◆ coordinate_evaluator()

fiber_bundle::section_evaluator & fields::property_disc_iterator::coordinate_evaluator ( ) const

The coordinate field evaluator associated with the current evaluation member.

Precondition
  • !is_done()

Definition at line 340 of file property_disc_iterator.cc.

References property_evaluator().

Referenced by type_name().

◆ coordinates_evaluation()

const sheaf::subposet & fields::property_disc_iterator::coordinates_evaluation ( ) const

The evaluation subposet for the coordinates.

Postcondition

Definition at line 234 of file property_disc_iterator.cc.

References sheaf::poset_component::is_same_state(), and property_evaluation().

Referenced by base_space().

◆ coordinates_schema()

◆ db()

int fields::property_disc_iterator::db ( ) const

The dimension of the current evaluation member.

Precondition
  • !is_done()
Postcondition
  • result >= 0

Definition at line 272 of file property_disc_iterator.cc.

References type_id().

Referenced by property_evaluation().

◆ force_is_done()

void fields::property_disc_iterator::force_is_done ( )
virtual

Force the iterator to be done.

Postcondition

Reimplemented from sheaf::depth_first_iterator.

Definition at line 639 of file property_disc_iterator.cc.

Referenced by invariant().

◆ get_prop_disc_values()

void fields::property_disc_iterator::get_prop_disc_values ( const sec_vd xsec)
pure virtual

◆ initialize_iteration() [1/2]

void fields::property_disc_iterator::initialize_iteration ( const field_vd xfield,
order_type  xorder 
)
protected

Initializes this for iteration of type xorder over the schema of xfield.

Precondition
  • xfield.state_is_read_accessible()
  • xfield.base_space().schema().conforms_to(base_space_member::standard_schema_path())
Postcondition
  • !strict()
  • -unexecutable( !is_done() implies this is first member )

Definition at line 457 of file property_disc_iterator.cc.

References fields::field_vd::base_space(), fiber_bundle::section_space_schema_member::base_space(), sheaf::schema_poset_member::conforms_to(), fields::field_vd::coordinates(), sheaf::abstract_poset_member::le(), fields::field_vd::property(), sheaf::total_poset_member::schema(), fiber_bundle::sec_rep_space_member::schema(), fields::field_vd::state_is_read_accessible(), and sheaf::poset_component::version().

Referenced by get_prop_disc_values(), and fields::property_disc_iterator_1_1::property_disc_iterator_1_1().

◆ initialize_iteration() [2/2]

void fields::property_disc_iterator::initialize_iteration ( const section_space_schema_member xcoordinates_schema,
const section_space_schema_member xproperty_schema,
order_type  xorder 
)
protected

Initializes this for iteration of type xorder over xcoordinates_schema and xproperty_schema.

Precondition
  • xcoordinates_schema.state_is_read_accessible()
  • xcoordinates_schema.base_space().schema().conforms_to(base_space_member::standard_schema_path())
  • xproperty_schema.state_is_read_accessible()
  • xproperty_schema.base_space().le(&xcoordinates_schema.base_space())
Postcondition
  • !strict()
  • -unexecutable( !is_done() implies this is first member )

Definition at line 505 of file property_disc_iterator.cc.

References fiber_bundle::section_space_schema_member::base_space(), sheaf::schema_poset_member::conforms_to(), is_ancestor_of(), sheaf::abstract_poset_member::le(), sheaf::total_poset_member::schema(), sheaf::read_write_monitor_handle::state_is_read_accessible(), and sheaf::poset_component::version().

◆ invariant()

◆ is_ancestor_of()

bool fields::property_disc_iterator::is_ancestor_of ( const any xother) const
virtual

◆ new_property_disc_iterator()

◆ property_discretization_members()

const sheaf::block< fiber_bundle::discretization_context > & fields::property_disc_iterator::property_discretization_members ( ) const

The property discretization members in the downset of the current evaluation member.

Precondition
  • !is_done()

Definition at line 408 of file property_disc_iterator.cc.

References get_prop_disc_values().

Referenced by fields::base_space_map::base_space_map(), coordinate_discretization_members(), fields::field_vd::put_property_dofs(), fields::body_pusher::same_fiber(), and fields::section_pusher::section_pusher().

◆ property_evaluation()

const sheaf::subposet & fields::property_disc_iterator::property_evaluation ( ) const

The evaluation subposet for the property.

Postcondition

Definition at line 253 of file property_disc_iterator.cc.

References db(), and sheaf::poset_component::is_same_state().

Referenced by coordinates_evaluation().

◆ property_evaluator()

fiber_bundle::section_evaluator & fields::property_disc_iterator::property_evaluator ( ) const

The property field evaluator associated with the current evaluation member.

Precondition
  • !is_done()

Definition at line 364 of file property_disc_iterator.cc.

References coordinate_discretization_members().

Referenced by coordinate_evaluator().

◆ property_schema()

◆ type_id()

sheaf::pod_index_type fields::property_disc_iterator::type_id ( ) const

The type id of the current member.

Precondition
  • !is_done()

Definition at line 295 of file property_disc_iterator.cc.

References type_name().

Referenced by db().

◆ type_name()

std::string fields::property_disc_iterator::type_name ( ) const

The type name of the current member.

Precondition
  • !is_done()
Hack:
this signature and implementation forces an unnecessary copy (or three).

Definition at line 317 of file property_disc_iterator.cc.

References coordinate_evaluator().

Referenced by type_id().

Member Data Documentation

◆ _above

depth_flags_type fields::property_disc_iterator::_above
protected

True if current iteration is above the subposet associated with the flag.

Definition at line 214 of file property_disc_iterator.h.

◆ _at

depth_flags_type fields::property_disc_iterator::_at
protected

True if current iteration is a member of the subposet associated with the flag.

Definition at line 208 of file property_disc_iterator.h.

◆ _coord_state

section_iteration_state fields::property_disc_iterator::_coord_state
protected

Descriptor for coordinate section iteration.

Definition at line 176 of file property_disc_iterator.h.

◆ _prop_state

section_iteration_state fields::property_disc_iterator::_prop_state
protected

Descriptor for property section iteration.

Definition at line 181 of file property_disc_iterator.h.

Referenced by fields::property_disc_iterator_1_1::get_prop_disc_values(), and fields::property_disc_iterator_1_1::next().


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