Module: Sequel::JDBC

Defined in:
lib/sequel/adapters/jdbc.rb,
lib/sequel/adapters/jdbc/h2.rb,
lib/sequel/adapters/jdbc/db2.rb,
lib/sequel/adapters/jdbc/jtds.rb,
lib/sequel/adapters/jdbc/as400.rb,
lib/sequel/adapters/jdbc/derby.rb,
lib/sequel/adapters/jdbc/mssql.rb,
lib/sequel/adapters/jdbc/mysql.rb,
lib/sequel/adapters/jdbc/cubrid.rb,
lib/sequel/adapters/jdbc/hsqldb.rb,
lib/sequel/adapters/jdbc/oracle.rb,
lib/sequel/adapters/jdbc/sqlite.rb,
lib/sequel/adapters/jdbc/firebird.rb,
lib/sequel/adapters/jdbc/informix.rb,
lib/sequel/adapters/jdbc/progress.rb,
lib/sequel/adapters/jdbc/sqlserver.rb,
lib/sequel/adapters/jdbc/postgresql.rb,
lib/sequel/adapters/jdbc/sqlanywhere.rb,
lib/sequel/adapters/jdbc/transactions.rb

Overview

Houses Sequel’s JDBC support when running on JRuby.

Defined Under Namespace

Modules: AS400, Cubrid, DB2, Derby, Firebird, H2, HSQLDB, Informix, JTDS, JavaLang, JavaSQL, JavaxNaming, MSSQL, MySQL, Oracle, Postgres, Progress, SQLServer, SQLite, SqlAnywhere, Transactions Classes: Database, Dataset

Constant Summary collapse

JNDI_URI_REGEXP =

Used to identify a jndi connection and to extract the jndi resource name.

/\Ajdbc:jndi:(.+)/
DECIMAL_TYPE_RE =

The types to check for 0 scale to transform :decimal types to :integer.

/number|numeric|decimal/io
DATABASE_SETUP =

Contains procs keyed on sub adapter type that extend the given database object so it supports the correct database type.

{:postgresql=>proc do |db|
    JDBC.load_gem(:Postgres)
    org.postgresql.Driver
    Sequel.require 'adapters/jdbc/postgresql'
    db.extend(Sequel::JDBC::Postgres::DatabaseMethods)
    db.dataset_class = Sequel::JDBC::Postgres::Dataset
    org.postgresql.Driver
  end,
  :mysql=>proc do |db|
    JDBC.load_gem(:MySQL)
    com.mysql.jdbc.Driver
    Sequel.require 'adapters/jdbc/mysql'
    db.extend(Sequel::JDBC::MySQL::DatabaseMethods)
    db.extend_datasets Sequel::MySQL::DatasetMethods
    com.mysql.jdbc.Driver
  end,
  :sqlite=>proc do |db|
    JDBC.load_gem(:SQLite3)
    org.sqlite.JDBC
    Sequel.require 'adapters/jdbc/sqlite'
    db.extend(Sequel::JDBC::SQLite::DatabaseMethods)
    db.extend_datasets Sequel::SQLite::DatasetMethods
    db.set_integer_booleans
    org.sqlite.JDBC
  end,
  :oracle=>proc do |db|
    Java::oracle.jdbc.driver.OracleDriver
    Sequel.require 'adapters/jdbc/oracle'
    db.extend(Sequel::JDBC::Oracle::DatabaseMethods)
    db.dataset_class = Sequel::JDBC::Oracle::Dataset
    Java::oracle.jdbc.driver.OracleDriver
  end,
  :sqlserver=>proc do |db|
    com.microsoft.sqlserver.jdbc.SQLServerDriver
    Sequel.require 'adapters/jdbc/sqlserver'
    db.extend(Sequel::JDBC::SQLServer::DatabaseMethods)
    db.extend_datasets Sequel::MSSQL::DatasetMethods
    db.send(:set_mssql_unicode_strings)
    com.microsoft.sqlserver.jdbc.SQLServerDriver
  end,
  :jtds=>proc do |db|
    JDBC.load_gem(:JTDS)
    Java::net.sourceforge.jtds.jdbc.Driver
    Sequel.require 'adapters/jdbc/jtds'
    db.extend(Sequel::JDBC::JTDS::DatabaseMethods)
    db.dataset_class = Sequel::JDBC::JTDS::Dataset
    db.send(:set_mssql_unicode_strings)
    Java::net.sourceforge.jtds.jdbc.Driver
  end,
  :h2=>proc do |db|
    JDBC.load_gem(:H2)
    org.h2.Driver
    Sequel.require 'adapters/jdbc/h2'
    db.extend(Sequel::JDBC::H2::DatabaseMethods)
    db.dataset_class = Sequel::JDBC::H2::Dataset
    org.h2.Driver
  end,
  :hsqldb=>proc do |db|
    JDBC.load_gem(:HSQLDB)
    org.hsqldb.jdbcDriver
    Sequel.require 'adapters/jdbc/hsqldb'
    db.extend(Sequel::JDBC::HSQLDB::DatabaseMethods)
    db.dataset_class = Sequel::JDBC::HSQLDB::Dataset
    org.hsqldb.jdbcDriver
  end,
  :derby=>proc do |db|
    JDBC.load_gem(:Derby)
    org.apache.derby.jdbc.EmbeddedDriver
    Sequel.require 'adapters/jdbc/derby'
    db.extend(Sequel::JDBC::Derby::DatabaseMethods)
    db.dataset_class = Sequel::JDBC::Derby::Dataset
    org.apache.derby.jdbc.EmbeddedDriver
  end,
  :as400=>proc do |db|
    com.ibm.as400.access.AS400JDBCDriver
    Sequel.require 'adapters/jdbc/as400'
    db.extend(Sequel::JDBC::AS400::DatabaseMethods)
    db.dataset_class = Sequel::JDBC::AS400::Dataset
    com.ibm.as400.access.AS400JDBCDriver
  end,
  :"informix-sqli"=>proc do |db|
    com.informix.jdbc.IfxDriver
    Sequel.require 'adapters/jdbc/informix'
    db.extend(Sequel::JDBC::Informix::DatabaseMethods)
    db.extend_datasets Sequel::Informix::DatasetMethods
    com.informix.jdbc.IfxDriver
  end,
  :db2=>proc do |db|
    com.ibm.db2.jcc.DB2Driver
    Sequel.require 'adapters/jdbc/db2'
    db.extend(Sequel::JDBC::DB2::DatabaseMethods)
    db.dataset_class = Sequel::JDBC::DB2::Dataset
    com.ibm.db2.jcc.DB2Driver
  end,
  :firebirdsql=>proc do |db|
    org.firebirdsql.jdbc.FBDriver
    Sequel.require 'adapters/jdbc/firebird'
    db.extend(Sequel::JDBC::Firebird::DatabaseMethods)
    db.extend_datasets Sequel::Firebird::DatasetMethods
    org.firebirdsql.jdbc.FBDriver
  end,
  :jdbcprogress=>proc do |db|
    com.progress.sql.jdbc.JdbcProgressDriver
    Sequel.require 'adapters/jdbc/progress'
    db.extend(Sequel::JDBC::Progress::DatabaseMethods)
    db.extend_datasets Sequel::Progress::DatasetMethods
    com.progress.sql.jdbc.JdbcProgressDriver
  end,
  :cubrid=>proc do |db|
    Java::cubrid.jdbc.driver.CUBRIDDriver
    Sequel.require 'adapters/jdbc/cubrid'
    db.extend(Sequel::JDBC::Cubrid::DatabaseMethods)
    db.extend_datasets Sequel::Cubrid::DatasetMethods
    Java::cubrid.jdbc.driver.CUBRIDDriver
  end,
  :sqlanywhere=>proc do |db|
    drv = [
      lambda{Java::sybase.jdbc4.sqlanywhere.IDriver},
      lambda{Java::ianywhere.ml.jdbcodbc.jdbc4.IDriver},
      lambda{Java::sybase.jdbc.sqlanywhere.IDriver},
      lambda{Java::ianywhere.ml.jdbcodbc.jdbc.IDriver},
      lambda{Java::com.sybase.jdbc4.jdbc.Sybdriver},
      lambda{Java::com.sybase.jdbc3.jdbc.Sybdriver}
    ].each do |class_proc|
      begin
        break class_proc.call
      rescue NameError
      end
    end
    Sequel.require 'adapters/jdbc/sqlanywhere'
    db.extend(Sequel::JDBC::SqlAnywhere::DatabaseMethods)
    db.dataset_class = Sequel::JDBC::SqlAnywhere::Dataset
    drv
  end
}

Class Method Summary collapse

Class Method Details

.load_gem(name) ⇒ Object

Allowing loading the necessary JDBC support via a gem, which works for PostgreSQL, MySQL, and SQLite.



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# File 'lib/sequel/adapters/jdbc.rb', line 170

def self.load_gem(name)
  begin
    require "jdbc/#{name.to_s.downcase}"
  rescue LoadError
    # jdbc gem not used, hopefully the user has the .jar in their CLASSPATH
  else
    if defined?(::Jdbc) && ( ::Jdbc.const_defined?(name) rescue nil )
      jdbc_module = ::Jdbc.const_get(name) # e.g. Jdbc::SQLite3
      jdbc_module.load_driver if jdbc_module.respond_to?(:load_driver)
    end
  end
end