Python API class rl3.FactIterator
Contents
rl3.FactIterator class overview
The rl3.FactIterator class implements the necessary set of functions that can be used in for/in loops to cycle through iterable objects:
# iterate and print all "continent" annotations
for i in factsheet.get_facts("name"):
print i.get_value()
constructor
New FactIterator objects must not be created through the __init__ constructor directly.
is_end
def is_end(self):
Define whether an iterator has looked through all the items in a data structure.
| Returns: | a boolean |
next
def next(self):
Obtain the next element in an iteration.
| Returns: | a reference to self |
get_label
def get_label(self):
Get a fact name (label) when iterating.
| Returns: | a string |
get_value
def get_value(self):
Get a fact value when iterating (as a unicode string).
| Returns: | a string |
get_weight
def get_weight(self):
Get a fact weight when iterating.
| Returns: | a floating number |
get_annotation_start
def get_annotation_start(self):
Get a fact annotation start (i.e. position in a text field) when iterating.
| Returns: | a number |
get_annotation_end
def get_annotation_end(self):
Get a fact annotation end (i.e. position in a text field) when iterating.
| Returns: | a number |
get_annotation
def get_annotation(self):
Get a fact annotation.
| Returns: | a tuple (a pair of two numbers - annotation start and annotation end) |
has_factsheet
def has_factsheet(self):
Define whether a fact contains a factsheet when iterating.
| Returns: | boolean |
get_factsheet
def get_factsheet(self):
Get a factsheet from a fact when iterating.
| Returns: | an rl3.Factsheet object or None if there is no factsheet.
|
to_json
def to_json(self, root_text = None, include_text = True):
Save an associated Fact as a JSON string.
| root_text: | None if a fact should be considered as independent / self-containing structure. By default is None.
|
| include_text | True if a text field should be included in the output; False otherwise. By default is True.
|
| Returns: | a JSON string. |