Class: Sequel::Oracle::Database

Inherits:
Database show all
Includes:
DatabaseMethods
Defined in:
lib/sequel_core/adapters/oracle.rb

Constant Summary collapse

CONNECTION_ERROR_CODES =

ORA-00028: your session has been killed ORA-01012: not logged on ORA-03113: end-of-file on communication channel ORA-03114: not connected to ORACLE

[ 28, 1012, 3113, 3114 ]

Constants inherited from Database

Database::ADAPTERS, Database::SQL_BEGIN, Database::SQL_COMMIT, Database::SQL_ROLLBACK

Constants included from Schema::SQL

Schema::SQL::AUTOINCREMENT, Schema::SQL::CASCADE, Schema::SQL::COMMA_SEPARATOR, Schema::SQL::NOT_NULL, Schema::SQL::NO_ACTION, Schema::SQL::NULL, Schema::SQL::PRIMARY_KEY, Schema::SQL::RESTRICT, Schema::SQL::SET_DEFAULT, Schema::SQL::SET_NULL, Schema::SQL::TYPES, Schema::SQL::UNDERSCORE, Schema::SQL::UNIQUE, Schema::SQL::UNSIGNED

Instance Attribute Summary

Attributes inherited from Database

#default_schema, #loggers, #opts, #pool, #prepared_statements, #quote_identifiers, #upcase_identifiers

Instance Method Summary collapse

Methods included from DatabaseMethods

#table_exists?, #tables

Methods inherited from Database

#<<, #[], adapter_class, adapter_scheme, #add_column, #add_index, #alter_table, #call, connect, #create_or_replace_view, #create_table, #create_table!, #create_view, #disconnect, #drop_column, #drop_index, #drop_table, #drop_view, #execute_ddl, #execute_dui, #fetch, #from, #get, #initialize, #inspect, #log_info, #logger, #logger=, #multi_threaded?, #query, quote_identifiers=, #quote_identifiers?, #rename_column, #rename_table, #select, #serial_primary_key_options, #set_column_default, #set_column_type, single_threaded=, #single_threaded?, #synchronize, #table_exists?, #test_connection, #typecast_value, upcase_identifiers=, #upcase_identifiers?, #uri

Methods included from Schema::SQL

#alter_table_sql, #alter_table_sql_list, #auto_increment_sql, #column_definition_sql, #column_list_sql, #column_references_sql, #constraint_definition_sql, #create_table_sql_list, #default_index_name, #drop_index_sql, #drop_table_sql, #filter_expr, #index_definition_sql, #index_list_sql_list, #literal, #on_delete_clause, #quote_identifier, #quote_schema_table, #rename_table_sql, #schema, #schema_utility_dataset

Constructor Details

This class inherits a constructor from Sequel::Database

Instance Method Details

#connect(server) ⇒ Object 



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# File 'lib/sequel_core/adapters/oracle.rb', line 16

def connect(server)
  opts = server_opts(server)
  if opts[:database]
    dbname = opts[:host] ? \
      "//#{opts[:host]}#{":#{opts[:port]}" if opts[:port]}/#{opts[:database]}" : opts[:database]
  else
    dbname = opts[:host]
  end
  conn = OCI8.new(opts[:user], opts[:password], dbname, opts[:privilege])
  conn.autocommit = true
  conn.non_blocking = true
  conn
end

#dataset(opts = nil) ⇒ Object 



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# File 'lib/sequel_core/adapters/oracle.rb', line 30

def dataset(opts = nil)
  Oracle::Dataset.new(self, opts)
end

#execute(sql, opts = {}) ⇒ Object Also known as: do 



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# File 'lib/sequel_core/adapters/oracle.rb', line 34

def execute(sql, opts={})
  log_info(sql)
  synchronize(opts[:server]) do |conn|
    begin
      r = conn.exec(sql)
      yield(r) if block_given?
      r
    rescue OCIException => e
      if CONNECTION_ERROR_CODES.include?(e.code)  
        raise(Sequel::DatabaseDisconnectError)              
      else
        raise
      end
    end
  end
end

#transaction(server = nil) ⇒ Object 



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# File 'lib/sequel_core/adapters/oracle.rb', line 52

def transaction(server=nil)
  synchronize(server) do |conn|
    return yield(conn) if @transactions.include?(Thread.current)
    
    conn.autocommit = false
    begin
      @transactions << Thread.current
      yield(conn)
    rescue => e
      conn.rollback
      raise e unless Error::Rollback === e
    ensure
      conn.commit unless e
      conn.autocommit = true
      @transactions.delete(Thread.current)
    end
  end
end