Class ActiveRecord::ConnectionAdapters::PostgreSQLAdapter::StatementPool < ActiveRecord::ConnectionAdapters::StatementPool

# File activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb, line 256
def initialize(connection, max)
  super
  @counter = 0
  @cache   = Hash.new { |h,pid| h[pid] = {} }
end

# File activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb, line 264
def [](key);      cache[key]; end

# File activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb, line 271
def []=(sql, key)
  while @max <= cache.size
    dealloc(cache.shift.last)
  end
  @counter += 1
  cache[sql] = key
end

# File activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb, line 279
def clear
  cache.each_value do |stmt_key|
    dealloc stmt_key
  end
  cache.clear
end

# File activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb, line 286
def delete(sql_key)
  dealloc cache[sql_key]
  cache.delete sql_key
end

# File activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb, line 262
def each(&block); cache.each(&block); end

# File activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb, line 263
def key?(key);    cache.key?(key); end

# File activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb, line 265
def length;       cache.length; end

# File activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb, line 267
def next_key
  "a#{@counter + 1}"
end