Class: Memcache::Base

Inherits:

Object

• Object
• Memcache::Base

show all

Defined in:

ext/native_server.c,
lib/memcache/base.rb

Instance Attribute Summary (collapse)

• - (Object) prefix

  Returns the value of attribute prefix.

Instance Method Summary (collapse)

• - (Object) add(key, value, expiry = 0, flags = 0)
• - (Object) append(key, value)
• - (Object) cas(key, value, cas, expiry = 0, flags = 0)
• - (Object) clear
• - (Object) decr(key, amount = 1)
• - (Object) gets(keys)

  Default implementations based on get and set.

• - (Object) incr(key, amount = 1)
• - (Object) prepend(key, value)
• - (Object) replace(key, value, expiry = 0, flags = 0)

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

def prefix
  @prefix
end

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

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

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

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

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

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

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

def clear
  flush_all
end

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# File 'lib/memcache/base.rb', line 26

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

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

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

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# File 'lib/memcache/base.rb', line 15

def incr(key, amount = 1)
  value = get(key)
  return unless value
  return unless value =~ /^\d+$/

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

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# File 'lib/memcache/base.rb', line 51

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

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

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