Class: Ethereum::DB::EphemDB

Inherits:
Object
  • Object
show all
Includes:
BaseDB
Defined in:
lib/ethereum/db/ephem_db.rb

Instance Attribute Summary

Attributes included from BaseDB

#db

Instance Method Summary collapse

Constructor Details

#initialize ⇒ EphemDB

Returns a new instance of EphemDB.



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# File 'lib/ethereum/db/ephem_db.rb', line 8

def initialize
  @db = {}
end

Instance Method Details

#==(other) ⇒ Object 



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# File 'lib/ethereum/db/ephem_db.rb', line 37

def ==(other)
  other.instance_of?(self.class) && db == other.db
end

#cleanup(epoch) ⇒ Object 



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# File 'lib/ethereum/db/ephem_db.rb', line 57

def cleanup(epoch)
  # do nothing
end

#commit ⇒ Object 



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# File 'lib/ethereum/db/ephem_db.rb', line 28

def commit
  # do nothing
end

#commit_refcount_changes(epoch) ⇒ Object 



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# File 'lib/ethereum/db/ephem_db.rb', line 53

def commit_refcount_changes(epoch)
  # do nothing
end

#dec_refcount(k) ⇒ Object 



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# File 'lib/ethereum/db/ephem_db.rb', line 45

def dec_refcount(k)
  # do nothing
end

#delete(k) ⇒ Object 



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# File 'lib/ethereum/db/ephem_db.rb', line 24

def delete(k)
  @db.delete(k)
end

#get(k) ⇒ Object 



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# File 'lib/ethereum/db/ephem_db.rb', line 12

def get(k)
  if has_key?(k)
    @db[k]
  else
    raise KeyError, k.inspect
  end
end

#has_key?(k) ⇒ Boolean Also known as: include?

Returns:

  • (Boolean) 


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# File 'lib/ethereum/db/ephem_db.rb', line 32

def has_key?(k)
  @db.has_key?(k)
end

#inc_refcount(k, v) ⇒ Object 



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# File 'lib/ethereum/db/ephem_db.rb', line 41

def inc_refcount(k, v)
  put k, v
end

#put(k, v) ⇒ Object 



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# File 'lib/ethereum/db/ephem_db.rb', line 20

def put(k, v)
  @db[k] = v
end

#put_temporarily(k, v) ⇒ Object 



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# File 'lib/ethereum/db/ephem_db.rb', line 61

def put_temporarily(k, v)
  inc_refcount(k, v)
  dec_refcount(k)
end

#revert_refcount_changes(epoch) ⇒ Object 



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# File 'lib/ethereum/db/ephem_db.rb', line 49

def revert_refcount_changes(epoch)
  # do nothing
end