Sha256: 21c1258db5cbf470f4df7a9a21ddc82923cfcbfb080b46cbf3d4fe027b03da6e
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Versions: 6
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Contents
module Imap; end
module Imap::Backup
class Serializer; end
# Stores data during a transaction
class Serializer::Transaction
# @return the transaction's stored data
attr_reader :data
# @param owner [any] the class using the transaction -
# this is used when raising errors
def initialize(owner:)
@data = nil
@owner = owner
@in_transaction = false
end
# Runs the transaction
# @param data [any] the data to maintain during the transaction
# @param block [block] the block to wrap with the transaction
# @return [void]
def begin(data, &block)
@data = data
@in_transaction = true
block.call
@in_transaction = false
end
# Clears rollback data
# @return [void]
def clear
@data = nil
end
def in_transaction?
@in_transaction
end
# Throws an exception if there is a current transaction
# @param method [Symbol] the method where the check is run
# @raise [RuntimeError] if called from inside a transaction
# @return [void]
def fail_in_transaction!(method, message: "not supported inside trasactions")
raise "#{owner.class}##{method} #{message}" if in_transaction?
end
# Throws an exception if there is not a current transaction
# @param method [Symbol] the method where the check is run
# @raise [RuntimeError] if called from outside a transaction
# @return [void]
def fail_outside_transaction!(method)
raise "#{owner.class}##{method} can only be called inside a transaction" if !in_transaction?
end
private
attr_reader :owner
end
end
Version data entries
6 entries across 6 versions & 1 rubygems