32 lines
1.3 KiB
Go
32 lines
1.3 KiB
Go
package store
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import "axolotl/models"
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// Store is a primitive graph persistence interface. It provides basic
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// operations for nodes, tags, and directed edges. No business logic lives here.
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type Store interface {
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// Nodes
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AddNode(id, title, content, dueDate, createdAt, updatedAt string) error
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GetNode(id string) (*models.Node, error) // returns node with tags and edges populated
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UpdateNode(id, title, content, dueDate, updatedAt string) error // empty dueDate stores NULL
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DeleteNode(id string) error
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NodeExists(id string) (bool, error)
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GenerateID() (string, error) // returns a random 5-char ID guaranteed unique in the store
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// Tags
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AddTag(nodeID, tag string) error
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RemoveTag(nodeID, tag string) error
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// Edges (directed, typed)
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AddEdge(fromID, toID string, relType models.RelType) error
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RemoveEdge(fromID, toID string, relType models.RelType) error
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// Query returns fully-populated nodes matching all given tag prefixes and edge filters.
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FindNodes(tagPrefixes []string, edgeFilters []*models.Rel) ([]*models.Node, error)
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// Transaction runs fn inside an atomic transaction. If fn returns an error
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// the transaction is rolled back; otherwise it is committed.
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// Calls to Transaction inside fn reuse the same transaction (no nesting).
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Transaction(fn func(Store) error) error
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}
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