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48 lines
1.2 KiB
Go
48 lines
1.2 KiB
Go
package eventstore
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import (
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"time"
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)
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type EventPusher interface {
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// EditorService is the service who wants to push the event
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EditorService() string
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//EditorUser is the user who wants to push the event
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EditorUser() string
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//Type must return an event type which should be unique in the aggregate
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Type() EventType
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//Data returns the payload of the event. It represent the changed fields by the event
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// valid types are:
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// * nil (no payload),
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// * json byte array
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// * struct which can be marshalled to json
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// * pointer to struct which can be marshalled to json
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Data() interface{}
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//CheckPrevious ensures the event order if true
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// if false the previous sequence is not checked on push
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CheckPrevious() bool
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}
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type EventReader interface {
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// EditorService is the service who pushed the event
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EditorService() string
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//EditorUser is the user who pushed the event
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EditorUser() string
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//Type is the type of the event
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Type() EventType
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AggregateID() string
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AggregateType() AggregateType
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ResourceOwner() string
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AggregateVersion() Version
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Sequence() uint64
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PreviousSequence() uint64
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CreationDate() time.Time
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}
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//Event is the representation of a state change
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type Event interface {
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EventPusher
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EventReader
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}
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