Class: DataContainer

Inherits:
Object
  • Object
show all
Includes:
Assert
Defined in:
lib/common/datastorage.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Assert

assert, #assert, assert_nil, #assert_nil, #assert_not_nil, assert_not_nil, raise_exception

Constructor Details

#initialize(key, data, persistentStorageHandler) ⇒ DataContainer

Returns a new instance of DataContainer.



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# File 'lib/common/datastorage.rb', line 191

def initialize( key, data, persistentStorageHandler )
  assert_not_nil( key, "key" )
  assert_not_nil( data, "data" )
  assert_not_nil( persistentStorageHandler, "persistentStorageHandler" )
  
  @key = key
  @data = data
  @persistentStorage = persistentStorageHandler
  @fileName = nil
  @inMemory = true
end

Instance Attribute Details

#key ⇒ Object (readonly)

Returns the value of attribute key.



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# File 'lib/common/datastorage.rb', line 188

def key
  @key
end

Instance Method Details

#clear ⇒ Object 



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# File 'lib/common/datastorage.rb', line 225

def clear
  if ( @fileName != nil )
    @persistentStorage.delete_file( build_file_name )
    @fileName = nil
  end
  
  @data = nil
  @key = nil
  @persistentStorage = nil
  @inMemory = false
end

#data ⇒ Object 



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# File 'lib/common/datastorage.rb', line 204

def data
  if ( data_in_memory? )
    return @data
  end
  
  @data = Marshal.load( @persistentStorage.load_file( build_file_name ) )
  @inMemory = true
  return @data
end

#data=(newData) ⇒ Object 



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# File 'lib/common/datastorage.rb', line 215

def data=( newData )
  @data = newData
  if ( @fileName != nil )
    @persistentStorage.delete_file( build_file_name )
    @fileName = nil
  end
  @inMemory = true
end

#data_in_memory? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/common/datastorage.rb', line 248

def data_in_memory?
  return @inMemory
end

#move_to_storage ⇒ Object 



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# File 'lib/common/datastorage.rb', line 238

def move_to_storage
  if ( data_in_memory? )
    @persistentStorage.write_file( build_file_name, Marshal.dump( @data ) )
    @data = nil
    @inMemory = false
  end
end