Class: Blazer::Adapters::BaseAdapter

Inherits:
Object
  • Object
show all
Defined in:
lib/blazer/adapters/base_adapter.rb

Direct Known Subclasses

ElasticsearchAdapter, MongodbAdapter, SqlAdapter

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(data_source) ⇒ BaseAdapter

Returns a new instance of BaseAdapter.



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# File 'lib/blazer/adapters/base_adapter.rb', line 6

def initialize(data_source)
  @data_source = data_source
end

Instance Attribute Details

#data_source ⇒ Object (readonly)

Returns the value of attribute data_source.



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# File 'lib/blazer/adapters/base_adapter.rb', line 4

def data_source
  @data_source
end

Instance Method Details

#cost(statement) ⇒ Object 



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# File 'lib/blazer/adapters/base_adapter.rb', line 26

def cost(statement)
  # optional
end

#explain(statement) ⇒ Object 



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# File 'lib/blazer/adapters/base_adapter.rb', line 30

def explain(statement)
  # optional
end

#preview_statement ⇒ Object 



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# File 'lib/blazer/adapters/base_adapter.rb', line 18

def preview_statement
  "" # also optional, but nice to have
end

#reconnect ⇒ Object 



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# File 'lib/blazer/adapters/base_adapter.rb', line 22

def reconnect
  # optional
end

#run_statement(statement, comment) ⇒ Object 



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# File 'lib/blazer/adapters/base_adapter.rb', line 10

def run_statement(statement, comment)
  # the one required method
end

#tables ⇒ Object 



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# File 'lib/blazer/adapters/base_adapter.rb', line 14

def tables
  [] # optional, but nice to have
end