Class cveitem

About :

	This class defines nodes of the graph which will have states. The "states" attribute refers a dictionary which defines the states of the current object. For instance no mechanism rules the states that are associated with the object unless a classifier is defined. Then the states are the instance of attributes of the referenced classifier. states : dictionary of state value classifier : definition of states that must be associated with the item. When classifier is defined, states become attributes of an object instance of the classifier.

Functions

Methods desciption :

init

def __init__(self, classifier=None)

init_from_class

def init_from_class(self, classifier=None)

This new version creates deep_copy of attributes

init_methods

def init_methods(self, classifier)

exported

def exported(self)

update_class_version

def update_class_version(self, classifier)

update_to_last_version

def update_to_last_version(self)

attribute_insert

def attribute_insert(self, attribute, item, i=-1)

Description: Insert an item into a specific state. Parameters: - attribute (string): Where insert item.

• item (vitem): the object to insert.
• i (int): the position to insert. if -1, last.

attribute_remove

def attribute_remove(self, attribute, item)

insert an item from a specific state

attribute_set

def attribute_set(self, attribute, value)

set a specific state value

insert

def insert(self, attribute, item, i=-1, atkey=None)

Description: Parameters: - attribute (string): Where insert the item.

• item (vitem): the object to insert.
• i (int): the position to insert. if -1, last.
• atkey (string) Return:

remove

def remove(self, attribute, item, atkey=None)

set

def set(self, attribute, value, atkey=None)

get_state

def get_state(self, state)

get_state_value

def get_state_value(self, state)

set_state_value

def set_state_value(self, state, value, waitfeedback=True, newitem=False, local=True, sendtoserver=True)

set_state

def set_state(self, state, value, waitfeedback=True, newitem=False, local=True, sendtoserver=True)

state_insert

def state_insert(self, state, item, i=-1, waitfeedback=True, newitem=False, local=True)

A new Insert Method which do both local and remote propagation of event

state_remove

def state_remove(self, state, item, waitfeedback=True, stillExist=False, local=True)

A new Remove Method which do both local and remote propagation of event

is_instance

def is_instance(self, classifier)

return True if the current cveitem is an instance of the classifier

add_callback

def add_callback(self, event, state, callback)

add a callback to be processed when an event appear on a given state

• → state (string) : state name
• → event (string) : ‘set’,’ins’,’del’ : stands for the type of event (set state value, insert or del subite
• → callback : function to execute for a set event : prototype def on_set_cb(self,state,olditem) for a ins event : prototype def on_ins_cb(self,state,sitem,index,newitem) for a del event : prototype def on_del_cb(self,state,sitem,suid,stillexist)

remove_callback

def remove_callback(self, event, state, callback)

remove a callback to be processed when an event appear on a given state

• → state (string) : state name
• → event (string) : ‘set’,’ins’,’del’ : stands for the type of event (set state value, insert or del subite
• → callback : function to execute

get_states_of_child

def get_states_of_child(self, child)

returns the list of states including a given child

• → : child
• ← : a set of states (strings)

get_callbacks

def get_callbacks(self, event, state)

get all callbacks concerning a state for a given event including supertypes callbacks

at_init_event

def at_init_event(self)

execute callbacks when a state value is set’

at_set_event

def at_set_event(self, state, olditem)

execute callbacks when a state value is set’

at_insert_event

def at_insert_event(self, state, sitem, index, newitem)

execute callbacks when an item is inserted in state’

at_remove_event

def at_remove_event(self, state, sitem, uid, stillexist)

execute callbacks when an item is removed from state’