Class: BeetleETL::Step

Inherits:
Object
  • Object
show all
Defined in:
lib/beetle_etl/steps/step.rb

Direct Known Subclasses

CreateStage, DropStage, Load, MapRelations, TableDiff, Transform

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(config, table_name) ⇒ Step

Returns a new instance of Step.



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# File 'lib/beetle_etl/steps/step.rb', line 7

def initialize(config, table_name)
  @config = config
  @table_name = table_name
end

Instance Attribute Details

#table_name ⇒ Object (readonly)

Returns the value of attribute table_name.



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# File 'lib/beetle_etl/steps/step.rb', line 5

def table_name
  @table_name
end

Class Method Details

.step_name(table_name) ⇒ Object 



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# File 'lib/beetle_etl/steps/step.rb', line 12

def self.step_name(table_name)
  "#{table_name}: #{name.split('::').last}"
end

Instance Method Details

#database ⇒ Object 



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# File 'lib/beetle_etl/steps/step.rb', line 28

def database
  @config.database
end

#dependencies ⇒ Object 



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# File 'lib/beetle_etl/steps/step.rb', line 20

def dependencies
  Set.new
end

#external_source ⇒ Object 



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# File 'lib/beetle_etl/steps/step.rb', line 24

def external_source
  @config.external_source
end

#name ⇒ Object 



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# File 'lib/beetle_etl/steps/step.rb', line 16

def name
  self.class.step_name(table_name)
end

#stage_table_name(table_name = nil) ⇒ Object 



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# File 'lib/beetle_etl/steps/step.rb', line 36

def stage_table_name(table_name = nil)
  BeetleETL::Naming.stage_table_name(external_source, table_name || @table_name)
end

#target_schema ⇒ Object 



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# File 'lib/beetle_etl/steps/step.rb', line 32

def target_schema
  @config.target_schema
end