Class: Baza::Driver::Sqlite3Java

Inherits:
JdbcDriver show all
Defined in:
lib/baza/driver/sqlite3_java.rb

Overview

This class handels SQLite3-specific behaviour.

Defined Under Namespace

Classes: Column, Columns, Commands, Index, Indexes, Table, Tables, UnbufferedResult

Constant Summary

Constants inherited from BaseSqlDriver

BaseSqlDriver::SELECT_ARGS_ALLOWED_KEYS

Instance Attribute Summary collapse

Attributes inherited from JdbcDriver

#conn, #conns

Attributes inherited from BaseSqlDriver

#cols, #conn, #db, #indexes, #sep_col, #sep_database, #sep_index, #sep_table, #sep_val, #tables

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from JdbcDriver

#close, #query, #query_ubuf, #result_set_killer

Methods inherited from BaseSqlDriver

#count, #delete, #escape_column, #escape_database, #escape_index, #escape_table, #insert, #insert_multi, #select, #single, #sql_make_where, #sqlval, #supports_multiple_databases?

Constructor Details

#initialize(db) ⇒ Sqlite3Java

Constructor. This should not be called manually.



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# File 'lib/baza/driver/sqlite3_java.rb', line 28

def initialize(db)
  super

  @path = @db.opts[:path] if @db.opts[:path]
  @preload_results = true

  if @db.opts[:conn]
    @conn = @db.opts[:conn]
  else
    org.sqlite.JDBC
    reconnect
  end
end

Instance Attribute Details

#mutex_statement_reader ⇒ Object (readonly)

Returns the value of attribute mutex_statement_reader.



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# File 'lib/baza/driver/sqlite3_java.rb', line 5

def mutex_statement_reader
  @mutex_statement_reader
end

Class Method Details

.args ⇒ Object 



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# File 'lib/baza/driver/sqlite3_java.rb', line 20

def self.args
  [{
    label: "Path",
    name: "path"
  }]
end

.from_object(args) ⇒ Object

Helper to enable automatic registering of database using Baza::Db.from_object



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# File 'lib/baza/driver/sqlite3_java.rb', line 8

def self.from_object(args)
  if args[:object].class.name == "Java::OrgSqlite::SQLiteConnection"
    return {
      type: :success,
      args: {
        type: :sqlite3_java,
        conn: args[:object]
      }
    }
  end
end

Instance Method Details

#escape(string) ⇒ Object

Escapes a string to be safe to used in a query.



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# File 'lib/baza/driver/sqlite3_java.rb', line 50

def escape(string)
  # This code is taken directly from the documentation so we dont have to rely on the SQLite3::Database class. This way it can also be used with JRuby and IronRuby...
  # http://sqlite-ruby.rubyforge.org/classes/SQLite/Database.html
  string.to_s.gsub(/'/, "''")
end

#reconnect ⇒ Object 



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# File 'lib/baza/driver/sqlite3_java.rb', line 42

def reconnect
  raise "No path was given." unless @path

  @stmt = nil
  @conn = java.sql.DriverManager.getConnection("jdbc:sqlite:#{@path}")
end

#transaction ⇒ Object 



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# File 'lib/baza/driver/sqlite3_java.rb', line 56

def transaction
  query_no_result_set("BEGIN TRANSACTION")

  begin
    yield @db
    query_no_result_set("COMMIT")
  rescue
    query_no_result_set("ROLLBACK")
    raise
  end
end