backdata

Documentation

Index

• type MapBackData
  • func NewMapBackData() *MapBackData
  • func (b *MapBackData) Add(entityID flow.Identifier, entity flow.Entity) bool
  • func (b *MapBackData) Adjust(entityID flow.Identifier, f func(flow.Entity) flow.Entity) (flow.Entity, bool)
  • func (b MapBackData) All() map[flow.Identifier]flow.Entity
  • func (b MapBackData) ByID(entityID flow.Identifier) (flow.Entity, bool)
  • func (b *MapBackData) Clear()
  • func (b MapBackData) Has(entityID flow.Identifier) bool
  • func (b *MapBackData) Hash() flow.Identifier
  • func (b *MapBackData) Rem(entityID flow.Identifier) (flow.Entity, bool)
  • func (b MapBackData) Size() uint

Types

type MapBackData

type MapBackData struct {
	// contains filtered or unexported fields
}

MapBackData implements a map-based generic memory BackData backed by a Go map.

func NewMapBackData

func NewMapBackData() *MapBackData

func (*MapBackData) Add

func (b *MapBackData) Add(entityID flow.Identifier, entity flow.Entity) bool

Add adds the given entity to the BackData.

func (*MapBackData) Adjust

func (b *MapBackData) Adjust(entityID flow.Identifier, f func(flow.Entity) flow.Entity) (flow.Entity, bool)

Adjust will adjust the value item using the given function if the given key can be found. Returns a bool which indicates whether the value was updated as well as the updated value

func (MapBackData) All

func (b MapBackData) All() map[flow.Identifier]flow.Entity

All returns all entities from the BackData.

func (MapBackData) ByID

func (b MapBackData) ByID(entityID flow.Identifier) (flow.Entity, bool)

ByID returns the given item from the BackData.

func (*MapBackData) Clear

func (b *MapBackData) Clear()

Clear removes all entities from the BackData.

func (MapBackData) Has

func (b MapBackData) Has(entityID flow.Identifier) bool

Has checks if we already contain the item with the given identifier.

func (*MapBackData) Hash

func (b *MapBackData) Hash() flow.Identifier

Hash will use a merkle root hash to hash all entities.

func (*MapBackData) Rem

func (b *MapBackData) Rem(entityID flow.Identifier) (flow.Entity, bool)

Rem will remove the entity with the given identifier.

func (MapBackData) Size

func (b MapBackData) Size() uint

Size will return the size of the BackData.