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App Engine Python SDK
v1.6.9 rev.445
The Python runtime is available as an experimental Preview feature.
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Public Member Functions | |
def | __init__ |
def | __iter__ |
def | __str__ |
def | to_json |
def | from_json |
def | split_input |
def | validate |
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def | __iter__ |
def | next |
def | from_json |
def | to_json |
def | split_input |
def | validate |
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def | to_json_str |
def | from_json_str |
Static Public Attributes | |
int | MAX_NAMESPACES_FOR_KEY_SHARD = 10 |
string | ENTITY_KIND_PARAM = "entity_kind" |
string | KEYS_ONLY_PARAM = "keys_only" |
string | BATCH_SIZE_PARAM = "batch_size" |
string | KEY_RANGE_PARAM = "key_range" |
string | FILTERS_PARAM = "filters" |
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expand_parameters = False | |
string | NAMESPACE_PARAM = "namespace" |
string | NAMESPACES_PARAM = "namespaces" |
Abstract class for datastore input readers.
def google.appengine.ext.mapreduce.input_readers.AbstractDatastoreInputReader.__init__ | ( | self, | |
iterator | |||
) |
Create new DatastoreInputReader object. This is internal constructor. Use split_input to create readers instead. Args: iterator: an iterator that generates objects for this input reader.
def google.appengine.ext.mapreduce.input_readers.AbstractDatastoreInputReader.__iter__ | ( | self | ) |
Yields whatever internal iterator yields.
def google.appengine.ext.mapreduce.input_readers.AbstractDatastoreInputReader.__str__ | ( | self | ) |
Returns the string representation of this InputReader.
def google.appengine.ext.mapreduce.input_readers.AbstractDatastoreInputReader.from_json | ( | cls, | |
json | |||
) |
Create new DatastoreInputReader from json, encoded by to_json. Args: json: json representation of DatastoreInputReader. Returns: an instance of DatastoreInputReader with all data deserialized from json.
def google.appengine.ext.mapreduce.input_readers.AbstractDatastoreInputReader.split_input | ( | cls, | |
mapper_spec | |||
) |
Inherit doc.
def google.appengine.ext.mapreduce.input_readers.AbstractDatastoreInputReader.to_json | ( | self | ) |
Serializes input reader to json compatible format. Returns: all the data in json-compatible map.
def google.appengine.ext.mapreduce.input_readers.AbstractDatastoreInputReader.validate | ( | cls, | |
mapper_spec | |||
) |
Inherit docs.