Class: Sequel::DB2::Database

Inherits:
Sequel::Database show all
Includes:
DB2CLI
Defined in:
lib/sequel/adapters/db2.rb

Constant Summary collapse

TEMPORARY = 
'GLOBAL TEMPORARY '.freeze

Constants inherited from Sequel::Database

Sequel::Database::ADAPTERS, Sequel::Database::AUTOINCREMENT, Sequel::Database::CASCADE, Sequel::Database::COLUMN_DEFINITION_ORDER, Sequel::Database::COMMA_SEPARATOR, Sequel::Database::MSSQL_DEFAULT_RE, Sequel::Database::MYSQL_TIMESTAMP_RE, Sequel::Database::NOT_NULL, Sequel::Database::NO_ACTION, Sequel::Database::NULL, Sequel::Database::POSTGRES_DEFAULT_RE, Sequel::Database::PRIMARY_KEY, Sequel::Database::RESTRICT, Sequel::Database::SET_DEFAULT, Sequel::Database::SET_NULL, Sequel::Database::SQL_BEGIN, Sequel::Database::SQL_COMMIT, Sequel::Database::SQL_RELEASE_SAVEPOINT, Sequel::Database::SQL_ROLLBACK, Sequel::Database::SQL_ROLLBACK_TO_SAVEPOINT, Sequel::Database::SQL_SAVEPOINT, Sequel::Database::STRING_DEFAULT_RE, Sequel::Database::TRANSACTION_BEGIN, Sequel::Database::TRANSACTION_COMMIT, Sequel::Database::TRANSACTION_ISOLATION_LEVELS, Sequel::Database::TRANSACTION_ROLLBACK, Sequel::Database::UNDERSCORE, Sequel::Database::UNIQUE, Sequel::Database::UNSIGNED

Instance Attribute Summary

Attributes inherited from Sequel::Database

#default_schema, #log_warn_duration, #loggers, #opts, #pool, #prepared_statements, #sql_log_level, #transaction_isolation_level

Instance Method Summary collapse

Methods inherited from Sequel::Database

#<<, #[], adapter_class, #adapter_scheme, adapter_scheme, #add_column, #add_index, #add_servers, #alter_table, #call, #cast_type_literal, connect, #create_or_replace_view, #create_table, #create_table!, #create_table?, #create_view, #database_type, #disconnect, #drop_column, #drop_index, #drop_table, #drop_view, #dump_indexes_migration, #dump_schema_migration, #dump_table_schema, #each_server, #execute_ddl, #execute_dui, #execute_insert, #fetch, #from, #get, identifier_input_method, #identifier_input_method, identifier_input_method=, #identifier_input_method=, #identifier_output_method, identifier_output_method, identifier_output_method=, #identifier_output_method=, #indexes, #initialize, #inspect, #literal, #log_info, #log_yield, #logger=, #query, quote_identifiers=, #quote_identifiers=, #quote_identifiers?, #remove_servers, #rename_column, #rename_table, #run, #schema, #select, #serial_primary_key_options, #servers, #set_column_default, #set_column_type, single_threaded=, #single_threaded?, #supports_create_table_if_not_exists?, #supports_prepared_transactions?, #supports_savepoints?, #supports_transaction_isolation_levels?, #synchronize, #table_exists?, #tables, #transaction, #typecast_value, #uri, #url, #views

Methods included from Metaprogramming

#meta_def

Constructor Details

This class inherits a constructor from Sequel::Database

Instance Method Details

#connect(server) ⇒ Object

check_error(rc, “Could not allocate DB2 environment”)



15
16
17
18
19
20
21
22
23
24
 
# File 'lib/sequel/adapters/db2.rb', line 15

def connect(server)
  opts = server_opts(server)
  rc, dbc = SQLAllocHandle(SQL_HANDLE_DBC, @@env) 
  check_error(rc, "Could not allocate database connection")
  
  rc = SQLConnect(dbc, opts[:database], opts[:user], opts[:password]) 
  check_error(rc, "Could not connect to database")
  
  dbc
end

#dataset(opts = nil) ⇒ Object 



31
32
33
 
# File 'lib/sequel/adapters/db2.rb', line 31

def dataset(opts = nil)
  DB2::Dataset.new(self, opts)
end

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



35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
 
# File 'lib/sequel/adapters/db2.rb', line 35

def execute(sql, opts={})
  synchronize(opts[:server]) do |conn|
    rc, sth = SQLAllocHandle(SQL_HANDLE_STMT, @handle) 
    check_error(rc, "Could not allocate statement")

    begin
      rc = log_yield(sql){SQLExecDirect(sth, sql)}
      check_error(rc, "Could not execute statement")
      
      yield(sth) if block_given?

      rc, rpc = SQLRowCount(sth)
      check_error(rc, "Could not get RPC") 
      rpc
    ensure
      rc = SQLFreeHandle(SQL_HANDLE_STMT, sth)
      check_error(rc, "Could not free statement")
    end
  end
end

#test_connection(server = nil) ⇒ Object 



26
27
28
29
 
# File 'lib/sequel/adapters/db2.rb', line 26

def test_connection(server=nil)
  synchronize(server){|conn|}
  true
end