Module: ArJdbc::Util::QuotedCache

Included in:
ActiveRecord::ConnectionAdapters::FirebirdAdapter, ActiveRecord::ConnectionAdapters::OracleAdapter, ActiveRecord::ConnectionAdapters::PostgreSQLAdapter
Defined in:
lib/arjdbc/util/quoted_cache.rb

Overview

Caches table and column name (quoted) outcomes. Uses ThreadSafe::Cache as a concurrent lock free (on JRuby) cache backend. The thread_safe gem is a dependency since ActiveSupport 4.0, when using ActiveRecord <= 3.2 one should add gem 'thread_safe' into the Gemfile as it is not forced (currently) as an explicit gem dependency.

Caching can also be disabled by setting the arjdbc.quoted_cache.disabled system property = 'true'.

Instance Method Summary collapse

Instance Method Details

#quote_column_name(name, *args) ⇒ String

Caches quoted table names, the cache is stored in the class' QUOTED_COLUMN_NAMES constant.

Returns:

  • (String) 


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# File 'lib/arjdbc/util/quoted_cache.rb', line 48

def quote_column_name(name, *args)
  if cache = self.class::QUOTED_COLUMN_NAMES
    unless quoted = cache[name]
      quoted = super
      cache.put_if_absent name, quoted.freeze
    end
    quoted
  else
    super
  end
end

#quote_table_name(name, *args) ⇒ String

Caches quoted table names, the cache is stored in the class' QUOTED_TABLE_NAMES constant.

Returns:

  • (String) 


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# File 'lib/arjdbc/util/quoted_cache.rb', line 33

def quote_table_name(name, *args)
  if cache = self.class::QUOTED_TABLE_NAMES
    unless quoted = cache[name]
      quoted = super
      cache.put_if_absent name, quoted.freeze
    end
    quoted
  else
    super
  end
end