state

Documentation

Overview

Copyright 2019 The trust-net Authors Resource for world state

Copyright 2019 The trust-net Authors World State interface to manage resources for an APP using DLT stack

Index

• func NewWorldState(dbp db.DbProvider, shardId []byte) (*worldState, error)
• type Resource
  • func (r *Resource) DeSerialize(data []byte) error
  • func (r *Resource) Serialize() ([]byte, error)
• type State

Functions

func NewWorldState

func NewWorldState(dbp db.DbProvider, shardId []byte) (*worldState, error)

Types

type Resource

type Resource struct {
	// key identifier for the resource (typically a UUID)
	Key []byte
	// identity of the owner of this resource
	Owner []byte
	// opaque serialized value of the resource
	Value []byte
}

A resource in the world state of a shard

func (*Resource) DeSerialize

func (r *Resource) DeSerialize(data []byte) error

func (*Resource) Serialize

func (r *Resource) Serialize() ([]byte, error)

type State

type State interface {
	// used to check if a transaction is already seen by the shard, so as to skip duplicates
	// also, marks the transaction as seen for any future reference
	Seen(txId []byte) bool
	Get(key []byte) (*Resource, error)
	Put(r *Resource) error
	Delete(key []byte) error
	Persist() error
	Reset() error
	Close() error
}