Python google.appengine.ext.db.non_transactional() Examples

The following are 3 code examples of google.appengine.ext.db.non_transactional(). You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may also want to check out all available functions/classes of the module google.appengine.ext.db , or try the search function .
Example #1
Source File: model.py    From locality-sensitive-hashing with MIT License 6 votes vote down vote up 
def find_all_by_mapreduce_state(cls, mapreduce_state):
    """Find all shard states for given mapreduce.

    Args:
      mapreduce_state: MapreduceState instance

    Yields:
      shard states sorted by shard id.
    """
    keys = cls.calculate_keys_by_mapreduce_state(mapreduce_state)
    i = 0
    while i < len(keys):
      @db.non_transactional
      def no_tx_get(i):
        return db.get(keys[i:i+cls._MAX_STATES_IN_MEMORY])
      # We need a separate function to so that we can mix non-transactional and
      # use be a generator
      states = no_tx_get(i)
      for s in states:
        i += 1
        if s is not None:
          yield s
Example #2
Source File: model.py    From python-compat-runtime with Apache License 2.0 6 votes vote down vote up 
def find_all_by_mapreduce_state(cls, mapreduce_state):
    """Find all shard states for given mapreduce.

    Args:
      mapreduce_state: MapreduceState instance

    Yields:
      shard states sorted by shard id.
    """
    keys = cls.calculate_keys_by_mapreduce_state(mapreduce_state)
    i = 0
    while i < len(keys):
      @db.non_transactional
      def no_tx_get(i):
        return db.get(keys[i:i+cls._MAX_STATES_IN_MEMORY])


      states = no_tx_get(i)
      for s in states:
        i += 1
        if s is not None:
          yield s
Example #3
Source File: model.py    From appengine-mapreduce with Apache License 2.0 6 votes vote down vote up 
def find_all_by_mapreduce_state(cls, mapreduce_state):
    """Find all shard states for given mapreduce.

    Args:
      mapreduce_state: MapreduceState instance

    Yields:
      shard states sorted by shard id.
    """
    keys = cls.calculate_keys_by_mapreduce_state(mapreduce_state)
    i = 0
    while i < len(keys):
      @db.non_transactional
      def no_tx_get(i):
        return db.get(keys[i:i+cls._MAX_STATES_IN_MEMORY])
      # We need a separate function to so that we can mix non-transactional and
      # use be a generator
      states = no_tx_get(i)
      for s in states:
        i += 1
        if s is not None:
          yield s