Module: Memoize

Included in:
VCenterDriver::ClusterComputeResource, VCenterDriver::ESXHost, VCenterDriver::Network, VCenterDriver::Storage, VCenterDriver::Template, VCenterDriver::VirtualMachine
Defined in:
lib/memoize.rb

Overview

Module Memoize

Instance Method Summary collapse

Instance Method Details

#[](property) ⇒ Object 



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# File 'lib/memoize.rb', line 22

def [](property)
    @memoize = {} unless defined?(@memoize)

    if (value = @memoize[property])
        return value
    end

    current_item = @item

    property_path = ''

    property.split('.').each do |elem|
        if property_path.empty?
            property_path << elem
        else
            property_path << '.' << elem
        end

        if (val = @memoize[property_path])
            current_item = val
        else
            begin
                current_item = current_item.send(elem)
            rescue StandardError
                current_item = nil
            end
        end

        break if current_item.nil?

        @memoize[property_path] = current_item
    end

    @memoize[property] = current_item
end

#[]=(property, value) ⇒ Object 



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# File 'lib/memoize.rb', line 67

def []=(property, value)
    @memoize = {} unless defined?(@memoize)

    @memoize[property] = value
end

#clear(property) ⇒ Object 



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# File 'lib/memoize.rb', line 58

def clear(property)
    @memoize = {} unless defined?(@memoize)
    @memoize.clear[property] if @memoize[property]
end

#clear_all ⇒ Object 



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# File 'lib/memoize.rb', line 63

def clear_all
    @memoize = {}
end