Class: Memcache::Base

Inherits:
Object
  • Object
show all
Defined in:
lib/memcache/base.rb,
ext/native_server.c

Direct Known Subclasses

LocalServer, NativeServer, NullServer, PGServer, Server

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#prefix ⇒ Object

Returns the value of attribute prefix.



3
4
5
 
# File 'lib/memcache/base.rb', line 3

def prefix
  @prefix
end

Instance Method Details

#add(key, value, expiry = 0, flags = 0) ⇒ Object 



32
33
34
35
 
# File 'lib/memcache/base.rb', line 32

def add(key, value, expiry = 0, flags = 0)
  return nil if get(key)
  set(key, value, expiry)
end

#append(key, value) ⇒ Object 



47
48
49
50
51
 
# File 'lib/memcache/base.rb', line 47

def append(key, value)
  existing = get(key)
  return false if existing.nil?
  set(key, existing[:value] + value) && true
end

#cas(key, value, cas, expiry = 0, flags = 0) ⇒ Object 



37
38
39
40
 
# File 'lib/memcache/base.rb', line 37

def cas(key, value, cas, expiry = 0, flags = 0)
  # No cas implementation yet, just do a set for now.
  set(key, value, expiry, flags)
end

#clear ⇒ Object 



5
6
7
 
# File 'lib/memcache/base.rb', line 5

def clear
  flush_all
end

#decr(key, amount = 1) ⇒ Object 



28
29
30
 
# File 'lib/memcache/base.rb', line 28

def decr(key, amount = 1)
  incr(key, -amount)
end

#gets(keys) ⇒ Object

Default implementations based on get and set.



11
12
13
 
# File 'lib/memcache/base.rb', line 11

def gets(keys)
  get(keys, true)
end

#incr(key, amount = 1) ⇒ Object 



15
16
17
18
19
20
21
22
23
24
25
26
 
# File 'lib/memcache/base.rb', line 15

def incr(key, amount = 1)
  result = get(key)
  return unless result

  value = result[:value]
  return unless value =~ /^\d+$/

  value = value.to_i + amount
  value = 0 if value < 0
  set(key, value.to_s)
  value
end

#prepend(key, value) ⇒ Object 



53
54
55
56
57
 
# File 'lib/memcache/base.rb', line 53

def prepend(key, value)
  existing = get(key)
  return false if existing.nil?
  set(key, value + existing[:value]) && true
end

#replace(key, value, expiry = 0, flags = 0) ⇒ Object 



42
43
44
45
 
# File 'lib/memcache/base.rb', line 42

def replace(key, value, expiry = 0, flags = 0)
  return nil if get(key).nil?
  set(key, value, expiry)
end