Class: Jerakia::Cache
- Inherits:
-
Object
- Object
- Jerakia::Cache
- Defined in:
- lib/jerakia/cache.rb
Overview
Very primitive form of cache - but we’ll make this smarter
Defined Under Namespace
Class Attribute Summary collapse
-
.bucket ⇒ Object
readonly
Returns the value of attribute bucket.
Class Method Summary collapse
- .add(index, data, metadata = {}) ⇒ Object
- .get(index) ⇒ Object
- .in_bucket?(index) ⇒ Boolean
- .metadata(index) ⇒ Object
- .purge(index) ⇒ Object
- .set_metadata(index, metadata) ⇒ Object
Instance Method Summary collapse
- #add(index, data, metadata = {}) ⇒ Object
- #bucket ⇒ Object
- #get(index) ⇒ Object
- #in_bucket?(index) ⇒ Boolean
-
#initialize ⇒ Cache
constructor
A new instance of Cache.
- #purge(index) ⇒ Object
-
#valid?(index) ⇒ Boolean
default behaviour is always validate if exists.
Constructor Details
#initialize ⇒ Cache
Returns a new instance of Cache.
12 13 |
# File 'lib/jerakia/cache.rb', line 12 def initialize end |
Class Attribute Details
.bucket ⇒ Object (readonly)
Returns the value of attribute bucket.
9 10 11 |
# File 'lib/jerakia/cache.rb', line 9 def bucket @bucket end |
Class Method Details
.add(index, data, metadata = {}) ⇒ Object
19 20 21 22 23 24 25 26 27 |
# File 'lib/jerakia/cache.rb', line 19 def self.add(index, data, ={}) @bucket[index] ||= {} ## The cache bucket is a global class object, therefore we should ## always store a copy of the data object, not the actual object ## to ensure that it is not referenced and tainted by the lookup # (index, ) @bucket[index][:content] = Marshal.load(Marshal.dump(data)) end |
.get(index) ⇒ Object
65 66 67 68 |
# File 'lib/jerakia/cache.rb', line 65 def self.get(index) data = @bucket[index][:content] Marshal.load(Marshal.dump(data)) end |
.in_bucket?(index) ⇒ Boolean
44 45 46 |
# File 'lib/jerakia/cache.rb', line 44 def self.in_bucket?(index) bucket.has_key?(index) end |
.metadata(index) ⇒ Object
33 34 35 36 37 |
# File 'lib/jerakia/cache.rb', line 33 def self.(index) if in_bucket?(index) Marshal.load(Marshal.dump(@bucket[index][:metadata])) end end |
.purge(index) ⇒ Object
57 58 59 |
# File 'lib/jerakia/cache.rb', line 57 def self.purge(index) @bucket.delete(index) end |
.set_metadata(index, metadata) ⇒ Object
29 30 31 |
# File 'lib/jerakia/cache.rb', line 29 def self.(index, ) @bucket[index][:metadata] = Marshal.load(Marshal.dump()) end |
Instance Method Details
#add(index, data, metadata = {}) ⇒ Object
15 16 17 |
# File 'lib/jerakia/cache.rb', line 15 def add(index, data, ={}) self.class.add(index,data, ) end |
#bucket ⇒ Object
70 71 72 |
# File 'lib/jerakia/cache.rb', line 70 def bucket self.class.bucket end |
#get(index) ⇒ Object
61 62 63 |
# File 'lib/jerakia/cache.rb', line 61 def get(index) self.class.get(index) end |
#in_bucket?(index) ⇒ Boolean
40 41 42 |
# File 'lib/jerakia/cache.rb', line 40 def in_bucket?(index) self.class.in_bucket?(index) end |
#purge(index) ⇒ Object
53 54 55 |
# File 'lib/jerakia/cache.rb', line 53 def purge(index) self.class.purge(index) end |
#valid?(index) ⇒ Boolean
default behaviour is always validate if exists.
49 50 51 |
# File 'lib/jerakia/cache.rb', line 49 def valid?(index) in_bucket?(index) end |