zcash_client_backend::data_api

Struct AccountMeta

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pub struct AccountMeta { /* private fields */ }
Expand description

Metadata about the structure of the wallet for a particular account.

At present this just contains counts of unspent outputs in each pool, but it may be extended in the future to contain note values or other more detailed information about wallet structure.

Values of this type are intended to be used in selection of change output values. A value of this type may represent filtered data, and may therefore not count all of the unspent notes in the wallet.

A AccountMeta value is normally produced by querying the wallet database via passing a NoteFilter to InputSource::get_account_metadata.

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impl AccountMeta

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pub fn new(sapling: Option<PoolMeta>, orchard: Option<PoolMeta>) -> Self

Constructs a new AccountMeta value from its constituent parts.

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pub fn sapling(&self) -> Option<&PoolMeta>

Returns metadata about Sapling notes belonging to the account for which this was generated.

Returns None if no metadata is available or it was not possible to evaluate the query described by a NoteFilter given the available wallet data.

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pub fn orchard(&self) -> Option<&PoolMeta>

Returns metadata about Orchard notes belonging to the account for which this was generated.

Returns None if no metadata is available or it was not possible to evaluate the query described by a NoteFilter given the available wallet data.

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pub fn note_count(&self, protocol: ShieldedProtocol) -> Option<usize>

Returns the number of unspent notes in the wallet for the given shielded protocol.

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pub fn total_note_count(&self) -> Option<usize>

Returns the total number of unspent shielded notes belonging to the account for which this was generated.

Returns None if no metadata is available or it was not possible to evaluate the query described by a NoteFilter given the available wallet data. If metadata is available only for a single pool, the metadata for that pool will be returned.

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pub fn total_value(&self) -> Option<Zatoshis>

Returns the total value of shielded notes represented by Self::total_note_count

Returns None if no metadata is available or it was not possible to evaluate the query described by a NoteFilter given the available wallet data. If metadata is available only for a single pool, the metadata for that pool will be returned.

Trait Implementations§

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impl Clone for AccountMeta

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fn clone(&self) -> AccountMeta

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for AccountMeta

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

Formats the value using the given formatter. Read more

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