Module: Activerecord::Oracle::Queue::Schema::Statements

Defined in:
lib/activerecord/oracle/queue/schema.rb

Instance Method Summary collapse

Instance Method Details

#add_queue(queue_name, payload_name: "message_t", payload_object: "json VARCHAR2(4000)") ⇒ Object

Raises:

  • (ArgumentError) 

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# File 'lib/activerecord/oracle/queue/schema.rb', line 21

def add_queue(queue_name, payload_name: "message_t", payload_object: "json VARCHAR2(4000)")
  schema, queue_name = remove_schema_from_queue_name(queue_name)

  raise ArgumentError, "The queue name can not be longer than 20 chars." if queue_name.length > 20

  add_queue_message_type(payload_name, payload_object)
  execute(<<-SQL)
    BEGIN
      DBMS_AQADM.CREATE_QUEUE_TABLE(
        queue_table        => '#{queue_name}_tab',
        queue_payload_type => '#{payload_name}'
      );

      DBMS_AQADM.CREATE_QUEUE(
        queue_name  => '#{queue_name}',
        queue_table => '#{queue_name}_tab'
      );

      DBMS_AQADM.START_QUEUE(
        queue_name => '#{queue_name}'
      );
    END;
  SQL
  add_queue_package(binding)
end

#remove_queue(queue_name, payload_name: "message_t") ⇒ Object 


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# File 'lib/activerecord/oracle/queue/schema.rb', line 47

def remove_queue(queue_name, payload_name: "message_t")
  schema, queue_name = remove_schema_from_queue_name(queue_name)

  execute(<<-SQL)
    BEGIN
      DBMS_AQADM.STOP_QUEUE(
        queue_name => '#{queue_name}'
      );

      DBMS_AQADM.DROP_QUEUE(
        queue_name => '#{queue_name}'
      );

      DBMS_AQADM.DROP_QUEUE_TABLE(
        queue_table => '#{queue_name}_tab'
      );
    END;
  SQL
  remove_queue_message_type(payload_name)
  execute("DROP PACKAGE #{queue_name}_queue")
end