Class: Alf::Sql::Cog

Inherits:
Object
  • Object
show all
Includes:
Compiler::Cog
Defined in:
lib/alf/sql/cog.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(expr, compiler, sexpr) ⇒ Cog

Returns a new instance of Cog.



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# File 'lib/alf/sql/cog.rb', line 6

def initialize(expr, compiler, sexpr)
  super(expr, compiler)
  @sexpr = sexpr
end

Instance Attribute Details

#sexpr ⇒ Object (readonly) Also known as: to_sexpr

Returns the value of attribute sexpr.



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# File 'lib/alf/sql/cog.rb', line 10

def sexpr
  @sexpr
end

Instance Method Details

#cog_orders ⇒ Object 



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# File 'lib/alf/sql/cog.rb', line 13

def cog_orders
  [ sexpr.ordering ].compact
end

#each(&bl) ⇒ Object

Raises:

  • (NotSupportedError) 


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# File 'lib/alf/sql/cog.rb', line 25

def each(&bl)
  raise NotSupportedError,\
    "This is an abstract SQL compilation result. Please use alf-sequel."
end

#should_be_reused? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/alf/sql/cog.rb', line 17

def should_be_reused?
  sexpr.should_be_reused?
end

#to_sql(buffer = "") ⇒ Object 



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# File 'lib/alf/sql/cog.rb', line 21

def to_sql(buffer = "")
  sexpr.to_sql(buffer)
end