micro/model/model.go

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// Package model is an interface for data modelling
package model
import (
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"github.com/micro/go-micro/v2/codec"
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"github.com/micro/go-micro/v2/store"
"github.com/micro/go-micro/v2/sync"
)
// Model provides an interface for data modelling
type Model interface {
// Initialise options
Init(...Option) error
// NewEntity creates a new entity to store or access
NewEntity(name string, value interface{}) Entity
// Create a value
Create(Entity) error
// Read values
Read(...ReadOption) ([]Entity, error)
// Update the value
Update(Entity) error
// Delete an entity
Delete(...DeleteOption) error
// Implementation of the model
String() string
}
type Entity interface {
// Unique id of the entity
Id() string
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// Name of the entity
Name() string
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// The value associated with the entity
Value() interface{}
// Attributes of the entity
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Attributes() map[string]interface{}
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// Read a value as a concrete type
Read(v interface{}) error
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}
type Options struct {
// Database to write to
Database string
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// for serialising
Codec codec.Marshaler
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// for locking
Sync sync.Sync
// for storage
Store store.Store
}
type Option func(o *Options)
type ReadOptions struct{}
type ReadOption func(o *ReadOptions)
type DeleteOptions struct{}
type DeleteOption func(o *DeleteOptions)