Module: Joggle::Store::PStore::Cache

Included in:
All
Defined in:
lib/joggle/store/pstore/cache.rb

Overview

Mixin that implements cache store methods for PStore backend.

Note: You’re probably looking for Joggle::Store::PStore::All

Instance Method Summary collapse

Instance Method Details

#add_cached(key, row) ⇒ Object

Add cache entry.



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# File 'lib/joggle/store/pstore/cache.rb', line 15

def add_cached(key, row)
  key = cache_store_key(key)

  @store.transaction do |s|
    s[key] = {}.merge(row)
  end
end

#cache_store_key(key) ⇒ Object

Map the given key to a pstore root key.



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# File 'lib/joggle/store/pstore/cache.rb', line 59

def cache_store_key(key)
  'cache-' << Digest::MD5.hexdigest(key)
end

#delete_cached(key) ⇒ Object

Delete the given entry.



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# File 'lib/joggle/store/pstore/cache.rb', line 48

def delete_cached(key)
  key = cache_store_key(key)

  @store.transaction do |s|
    s.delete(key)
  end
end

#get_cached(key) ⇒ Object

Get cache entry.



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# File 'lib/joggle/store/pstore/cache.rb', line 26

def get_cached(key)
  key = cache_store_key(key)

  @store.transaction(true) do |s|
    s[key]
  end
end

#has_cached?(key) ⇒ Boolean

Does the given entry exist?

Returns:

  • (Boolean) 


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# File 'lib/joggle/store/pstore/cache.rb', line 37

def has_cached?(key)
  key = cache_store_key(key)

  @store.transaction(true) do |s|
    s.root?(key)
  end
end