Viewing file:  queryresultset.py (3.59 KB) -rw-r--r--
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from boto.compat import six
# Copyright (c) 2006,2007 Mitch Garnaat http://garnaat.org/
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish, dis-
# tribute, sublicense, and/or sell copies of the Software, and to permit
# persons to whom the Software is furnished to do so, subject to the fol-
# lowing conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL-
# ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
# SHALL THE AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
# IN THE SOFTWARE.
def query_lister(domain, query='', max_items=None, attr_names=None):
more_results = True
num_results = 0
next_token = None
while more_results:
rs = domain.connection.query_with_attributes(domain, query, attr_names,
next_token=next_token)
for item in rs:
if max_items:
if num_results == max_items:
raise StopIteration
yield item
num_results += 1
next_token = rs.next_token
more_results = next_token is not None
class QueryResultSet(object):
def __init__(self, domain=None, query='', max_items=None, attr_names=None):
self.max_items = max_items
self.domain = domain
self.query = query
self.attr_names = attr_names
def __iter__(self):
return query_lister(self.domain, self.query, self.max_items, self.attr_names)
def select_lister(domain, query='', max_items=None):
more_results = True
num_results = 0
next_token = None
while more_results:
rs = domain.connection.select(domain, query, next_token=next_token)
for item in rs:
if max_items:
if num_results == max_items:
raise StopIteration
yield item
num_results += 1
next_token = rs.next_token
more_results = next_token is not None
class SelectResultSet(object):
def __init__(self, domain=None, query='', max_items=None,
next_token=None, consistent_read=False):
self.domain = domain
self.query = query
self.consistent_read = consistent_read
self.max_items = max_items
self.next_token = next_token
def __iter__(self):
more_results = True
num_results = 0
while more_results:
rs = self.domain.connection.select(self.domain, self.query,
next_token=self.next_token,
consistent_read=self.consistent_read)
for item in rs:
if self.max_items and num_results >= self.max_items:
raise StopIteration
yield item
num_results += 1
self.next_token = rs.next_token
if self.max_items and num_results >= self.max_items:
raise StopIteration
more_results = self.next_token is not None
def next(self):
return next(self.__iter__())
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