Struct transact::context::manager::ContextManager

pub struct ContextManager { /* fields omitted */ }

Methods

impl ContextManager

pub fn new(
    database: Box<dyn Read<StateId = String, Key = String, Value = Vec<u8>>>
) -> Self

pub fn get(
    &self,
    context_id: &ContextId,
    keys: &[String]
) -> Result<Vec<(String, Vec<u8>)>, ContextManagerError>

Get the values associated with list of keys, from a specific Context. If a key is not found in the context, State is then checked for these keys. Keys are returned with the associated value, if found in Context or State.

pub fn set_state(
    &mut self,
    context_id: &ContextId,
    key: String,
    value: Vec<u8>
) -> Result<(), ContextManagerError>

Adds a StateChange::Set to the specified Context

pub fn delete_state(
    &mut self,
    context_id: &ContextId,
    key: &str
) -> Result<Option<Vec<u8>>, ContextManagerError>

Adds a StateChange::Delete to the specified Context, returning the value, if found, that is associated with the specified key.

pub fn add_event(
    &mut self,
    context_id: &ContextId,
    event: Event
) -> Result<(), ContextManagerError>

Adds an Event to the specified Context.

pub fn add_data(
    &mut self,
    context_id: &ContextId,
    data: Vec<u8>
) -> Result<(), ContextManagerError>

Adds Data to the specified Context.

Trait Implementations

impl ContextLifecycle for ContextManager

fn create_context(
    &mut self,
    dependent_contexts: &[ContextId],
    state_id: &str
) -> ContextId

Creates a Context, and returns the resulting ContextId.

fn drop_context(&mut self, _context_id: ContextId)

fn get_transaction_receipt(
    &self,
    context_id: &ContextId,
    transaction_id: &str
) -> Result<TransactionReceipt, ContextManagerError>

Creates a TransactionReceipt based on the information available within the specified Context.