Enum ProjectionPart 

#[non_exhaustive]
pub enum ProjectionPart {
    Meta,
    Leaves,
    Nodes,
    Accounts,
    AccountVersions,
    CurrencyVersions,
    PolicyVersions,
    Periods,
    Entries,
    Memos,
    Postings,
    PostingDims,
    Holds,
    Seals,
    SealLeaves,
    SealNodes,
    Clearings,
    ClearingResets,
    ClearingRefs,
    Balances,
    Cleared,
    Outstanding,
    Slices,
}

One part of a store’s projection: one table of the doubleentry/1 schema.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Meta

meta: the schema id, ledger id, scale and genesis leaf hash.

Leaves

leaves: the log. The audit replays these rows.

Nodes

nodes: every stored tree node.

Accounts

accounts: registrations by handle.

AccountVersions

account_versions: every version of every account field.

CurrencyVersions

currency_versions: every currency declaration.

PolicyVersions

policy_versions: every policy record.

Periods

periods: the calendar.

Entries

entries: the entry index (key, id, ordinal, reversal link).

Memos

memos, with each entry’s draft fingerprint: the erasable side data, one row per entry (and per memo row without an entry).

Postings

postings: every posting with its balance after.

PostingDims

posting_dims: the dimension index of postings.

Holds

holds: the hold index, open and resolved.

Seals

seals: the sealed periods.

SealLeaves

seal_leaves: the non-zero leaves of every seal balance tree.

SealNodes

seal_nodes: the stored nodes of every seal balance tree.

Clearings

clearings: clearing records by key.

ClearingResets

clearing_resets: which apply each reset released.

ClearingRefs

clearing_refs: the balances each clearing record touches.

Balances

balances: the maintained balances.

Cleared

cleared: the amounts cleared against postings.

Outstanding

outstanding: the amounts open holds reserve.

Slices

slices: the Settled balance of each (account, currency, dimension set).

Implementations

impl ProjectionPart

pub const ALL: [Self; 23]

Every part, in the order an audit compares them.

pub const fn table(self) -> &'static str

The table the part projects.

pub fn columns(self) -> Vec<String>

The projected columns, table.column, the primary key first.

pub const fn key_len(self) -> usize

How many leading columns form the primary key (the row order).

pub const fn is_erasable(self) -> bool

Whether the part changes without the log growing: memo erasure changes the memos part (and only it).

Trait Implementations

impl Clone for ProjectionPart

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for ProjectionPart

impl Debug for ProjectionPart

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for ProjectionPart

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for ProjectionPart

impl Hash for ProjectionPart

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for ProjectionPart

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

fn clamp_to<R>(self, range: R) -> Self

where Self: Sized, R: ClampBounds<Self>,

🔬This is a nightly-only experimental API. (clamp_to)

Restrict a value to a certain range.

impl PartialEq for ProjectionPart

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl PartialOrd for ProjectionPart

fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralPartialEq for ProjectionPart