Class: Innodb::FieldType::GenericType

Inherits:
Object
  • Object
show all
Defined in:
lib/innodb/field_type.rb

Direct Known Subclasses

IntegerType, VariableStringType

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(type) ⇒ GenericType

Returns a new instance of GenericType.



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# File 'lib/innodb/field_type.rb', line 6

def initialize(type)
  @type = type
end

Instance Attribute Details

#type ⇒ Object (readonly)

Returns the value of attribute type.



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# File 'lib/innodb/field_type.rb', line 4

def type
  @type
end

Instance Method Details

#get_extern_field(cursor) ⇒ Object

Return an external reference field. An extern field contains the page address and the length of the externally stored part of the record data.



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# File 'lib/innodb/field_type.rb', line 20

def get_extern_field(cursor)
  {
    :space_id     => cursor.name("space_id")    { cursor.get_uint32 },
    :page_number  => cursor.name("page_number") { cursor.get_uint32 },
    :offset       => cursor.name("offset")      { cursor.get_uint32 },
    :length       => cursor.name("length")      { cursor.get_uint64 & 0x3fffffff }
  }
end

#read(cursor, length) ⇒ Object 



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# File 'lib/innodb/field_type.rb', line 10

def read(cursor, length)
  cursor.get_bytes(length)
end

#read_extern(cursor) ⇒ Object 



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# File 'lib/innodb/field_type.rb', line 14

def read_extern(cursor)
  cursor.name("extern") { get_extern_field(cursor) }
end