Entry that is put into caches. It supports expiration time on entries and can compress values to save space in the cache.
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DEFAULT_COMPRESS_LIMIT | = | 16.kilobytes |
[R] | created_at | |
[R] | expires_in |
Create an entry with internal attributes set. This method is intended to be used by implementations that store cache entries in a native format instead of as serialized Ruby objects.
# File activesupport/lib/active_support/cache.rb, line 541 def create (raw_value, created_at, options = {}) entry = new(nil) entry.instance_variable_set(:@value, raw_value) entry.instance_variable_set(:@created_at, created_at.to_f) entry.instance_variable_set(:@compressed, !!options[:compressed]) entry.instance_variable_set(:@expires_in, options[:expires_in]) entry end
Create a new cache entry for the specified value. Options supported are :compress, :compress_threshold, and :expires_in.
# File activesupport/lib/active_support/cache.rb, line 553 def initialize(value, options = {}) @compressed = false @expires_in = options[:expires_in] @expires_in = @expires_in.to_f if @expires_in @created_at = Time.now.to_f if value if should_compress?(value, options) @value = Zlib::Deflate.deflate(Marshal.dump(value)) @compressed = true else @value = value end else @value = nil end end
Check if the entry is expired. The expires_in parameter can override the value set when the entry was created.
Seconds since the epoch when the entry will expire.
Set a new time when the entry will expire.
Get the raw value. This value may be serialized and compressed.
Returns the size of the cached value. This could be less than value.size if the data is compressed.