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vaiorabbit/SequenceDiagram2.plantuml

Created June 10, 2019 14:57
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UMLモデリングのエッセンス 第3版 図4.3
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SequenceDiagram2.plantuml
@startuml
hide footbox
participant "a Handler" as H
participant "a Query Command" as QC
participant "a Database Statement" as DS
/' skinparam lifelineStrategy solid '/
skinparam lifelineStrategy dashed
[o-> H : query database
activate H
create QC
H -> QC : new
activate QC
create DS
QC -> DS : new
QC -> DS : execute
activate DS
DS --> QC : results
deactivate DS
QC -> QC : extract results
activate QC
deactivate QC
QC -> DS : close
destroy DS
destroy QC
QC --> H : results
@enduml
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