Storage 
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	{ WrittenBy vanrein }
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Document 
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	{ Type "Static Structure Diagram" }
	{ Name workflow-dns-queue-datastructure.ssd }
	{ Author vanrein }
	{ CreatedOn "" }
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# GRAPH NODES

SSDClassNode 1
{
	{ Name "Queue" }
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	{ Index "" }
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	{ Properties "{ - }" }
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SSDClassNode 2
{
	{ Name "QueuedZone\r[Getting]" }
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	{ Attribute "zone" }
	{ Attribute "priority" }
	{ Operations 0 }
	{ Stereotype "<< - >>" }
	{ Properties "{ - }" }
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SSDClassNode 3
{
	{ Name "QueuedZone\r[Putting]" }
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SSDClassNode 4
{
	{ Name "QueuedZone\r[Ready]" }
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	{ Attribute "zone" }
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	{ Operations 0 }
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Comment 5
{
	{ Name "QUEUE CLASS DIAGRAM" }
	{ Annotation "" }
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Note 6
{
	{ Name "\rMuch of the DNS workflow hinges on the Queue's operation.  Internally, the Queue holds QueuedZones\rwhich list zone updates. The [states] refer to the state diagram for the QueuedZone, and instances\rmove accordingly in this diagram when the proper (un)lock operation works on the Queue.\r\rAny number of QueuedZones can be in state [Putting], but no more than one per zone.\rAny number of QueuedZones can be [Ready] but a zone can only overtake _other_ zones.\rAt most one QueuedZone can be the current [Getting] instance.\r" }
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SSDClassNode 7
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SSDClassNode 8
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	{ Attribute "dnsname" }
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# GRAPH EDGES

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