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60a5ac78b0
Prevents you from accidentally calling a protected method.
41 lines
1.5 KiB
Ruby
41 lines
1.5 KiB
Ruby
module ActiveSupport
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# This module creates a local registry class inside each thread. It provides
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# basic methods which will store thread locals in a single class. This
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# prevents the proliferation of too many thread locals and allows you to
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# explicitly keep track of each of the variables you're using as thread
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# locals in a class which includes this module.
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#
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# For example, instead of using a bunch of different thread locals to keep
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# track of some variables like so:
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#
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# Thread.current[:active_record_connection_handler] = connection_handler
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# Thread.current[:active_record_sql_runtime] = sql_runtime
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#
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# You could use the following class which implements the +PerThreadRegistry+
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# module:
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#
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# class NewRegistry
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# extend ActiveSupport::PerThreadRegistry
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#
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# attr_accessor :connection_handler, :sql_runtime
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# end
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#
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# NewRegistry.instance.connection_handler = connection_handler
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# NewRegistry.instance.sql_runtime = sql_runtime
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#
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# The new way of keeping track of the thread locals will create a new local
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# inside of +Thread.current+ with a key which is the name of the extended
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# class. Now you can easily access per thread variables by just calling the
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# variable name on the registry.
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module PerThreadRegistry
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def instance
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Thread.current[self.name] ||= new
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end
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protected
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def method_missing(*args, &block)
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instance.public_send(*args, &block)
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end
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end
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end
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