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# 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.
from boto.sdb.item import Item
def query_lister(domain, query='', max_items=None):
more_results = True
num_results = 0
next_token = None
while more_results:
rs = domain.connection.query(domain.name, query, None, next_token)
for item_name in rs:
if max_items:
if num_results == max_items:
raise StopIteration
yield Item(domain, item_name)
num_results += 1
next_token = rs.next_token
more_results = next_token != None
class QueryResultSet:
def __init__(self, domain=None, query='', max_items=None):
self.max_items = max_items
self.domain = domain
self.query = query
def __iter__(self):
return query_lister(self.domain, self.query, self.max_items)
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