Class: ActiveRecord::ConnectionAdapters::SQLite3Adapter::StatementPool

Inherits:
ActiveRecord::ConnectionAdapters::StatementPool show all
Defined in:
activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb

Instance Method Summary collapse

Methods inherited from ActiveRecord::ConnectionAdapters::StatementPool

#delete

Methods included from Enumerable

#as_json, #exclude?, #index_by, #many?, #sum

Constructor Details

#initialize(connection, max) ⇒ StatementPool

Returns a new instance of StatementPool


67
68
69
70
# File 'activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb', line 67

def initialize(connection, max)
  super
  @cache = Hash.new { |h,pid| h[pid] = {} }
end

Instance Method Details

#[](key) ⇒ Object


74
# File 'activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb', line 74

def [](key);      cache[key]; end

#[]=(sql, key) ⇒ Object


77
78
79
80
81
82
# File 'activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb', line 77

def []=(sql, key)
  while @max <= cache.size
    dealloc(cache.shift.last[:stmt])
  end
  cache[sql] = key
end

#clearObject


84
85
86
87
88
89
# File 'activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb', line 84

def clear
  cache.values.each do |hash|
    dealloc hash[:stmt]
  end
  cache.clear
end

#each(&block) ⇒ Object


72
# File 'activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb', line 72

def each(&block); cache.each(&block); end

#key?(key) ⇒ Boolean

Returns:

  • (Boolean)

73
# File 'activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb', line 73

def key?(key);    cache.key?(key); end

#lengthObject


75
# File 'activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb', line 75

def length;       cache.length; end