class Ethereum::DB::OverlayDB
Used for making temporary objects.
Public Class Methods
new(db)
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# File lib/ethereum/db/overlay_db.rb, line 10 def initialize(db) @db = db @overlay = {} end
Public Instance Methods
==(other)
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# File lib/ethereum/db/overlay_db.rb, line 46 def ==(other) other.instance_of?(self.class) && db = other.db end
cleanup(epoch)
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# File lib/ethereum/db/overlay_db.rb, line 66 def cleanup(epoch) # do nothing end
commit()
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# File lib/ethereum/db/overlay_db.rb, line 37 def commit # do nothing end
commit_refcount_changes(epoch)
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# File lib/ethereum/db/overlay_db.rb, line 62 def commit_refcount_changes(epoch) # do nothing end
dec_refcount(k)
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# File lib/ethereum/db/overlay_db.rb, line 54 def dec_refcount(k) # do nothing end
delete(k)
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# File lib/ethereum/db/overlay_db.rb, line 33 def delete(k) @overlay[k] = nil end
get(k)
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# File lib/ethereum/db/overlay_db.rb, line 15 def get(k) if @overlay.has_key?(k) raise KeyError, k.inspect if @overlay[k].nil? return @overlay[k] end db.get k end
has_key?(k)
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# File lib/ethereum/db/overlay_db.rb, line 41 def has_key?(k) @overlay.has_key?(k) ? !@overlay[k].nil? : db.has_key?(k) end
Also aliased as: include?
inc_refcount(k, v)
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# File lib/ethereum/db/overlay_db.rb, line 50 def inc_refcount(k, v) put k, v end
put(k, v)
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# File lib/ethereum/db/overlay_db.rb, line 24 def put(k, v) @overlay[k] = v end
put_temporarily(k, v)
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# File lib/ethereum/db/overlay_db.rb, line 28 def put_temporarily(k, v) inc_refcount k, v dec_refcount k end
revert_refcount_changes(epoch)
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# File lib/ethereum/db/overlay_db.rb, line 58 def revert_refcount_changes(epoch) # do nothing end