Class: ActiveRecord::ConnectionAdapters::SQLiteAdapter::StatementPool

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

Instance Method Summary collapse

Methods inherited from ActiveRecord::ConnectionAdapters::StatementPool

#delete

Methods included from Enumerable

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

Constructor Details

#initialize(connection, max) ⇒ StatementPool

Returns a new instance of StatementPool


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# File 'activerecord/lib/active_record/connection_adapters/sqlite_adapter.rb', line 39

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

Instance Method Details

#[](key) ⇒ Object


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# File 'activerecord/lib/active_record/connection_adapters/sqlite_adapter.rb', line 46

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

#[]=(sql, key) ⇒ Object


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# File 'activerecord/lib/active_record/connection_adapters/sqlite_adapter.rb', line 49

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

#clearObject


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# File 'activerecord/lib/active_record/connection_adapters/sqlite_adapter.rb', line 56

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

#each(&block) ⇒ Object


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# File 'activerecord/lib/active_record/connection_adapters/sqlite_adapter.rb', line 44

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

#key?(key) ⇒ Boolean

Returns:

  • (Boolean)

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# File 'activerecord/lib/active_record/connection_adapters/sqlite_adapter.rb', line 45

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

#lengthObject


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# File 'activerecord/lib/active_record/connection_adapters/sqlite_adapter.rb', line 47

def length;       cache.length; end