Class: ActiveColumn::Tasks::Keyspace

Inherits:
Object
  • Object
show all
Defined in:
lib/active_column/tasks/keyspace.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Keyspace

Returns a new instance of Keyspace.



7
8
9
10
 
# File 'lib/active_column/tasks/keyspace.rb', line 7

def initialize
  c = ActiveColumn.connection
  @cassandra = Cassandra.new('system', c.servers, c.thrift_client_options)
end

Instance Method Details

#clear ⇒ Object 



38
39
40
41
42
 
# File 'lib/active_column/tasks/keyspace.rb', line 38

def clear
  return puts 'Cannot clear system keyspace' if @cassandra.keyspace == 'system'

  @cassandra.clear_keyspace!
end

#create(name, options = {}) ⇒ Object 



16
17
18
19
20
21
22
23
24
 
# File 'lib/active_column/tasks/keyspace.rb', line 16

def create(name, options = {})
  opts = { :name => name.to_s,
           :strategy_class => 'org.apache.cassandra.locator.LocalStrategy',
           :replication_factor => 1,
           :cf_defs => [] }.merge(options)

  ks = Cassandra::Keyspace.new.with_fields(opts)
  @cassandra.add_keyspace ks
end

#drop(name) ⇒ Object 



26
27
28
 
# File 'lib/active_column/tasks/keyspace.rb', line 26

def drop(name)
  @cassandra.drop_keyspace name.to_s
end

#exists?(name) ⇒ Boolean

Returns:

  • (Boolean) 


12
13
14
 
# File 'lib/active_column/tasks/keyspace.rb', line 12

def exists?(name)
  @cassandra.keyspaces.include? name.to_s
end

#get ⇒ Object 



34
35
36
 
# File 'lib/active_column/tasks/keyspace.rb', line 34

def get
  @cassandra.keyspace
end

#set(name) ⇒ Object 



30
31
32
 
# File 'lib/active_column/tasks/keyspace.rb', line 30

def set(name)
  @cassandra.keyspace = name.to_s
end