Trait MPTokenFields

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pub trait MPTokenFields: LedgerObjectCommonFields {
Show 13 methods    // Provided methods
    fn account(&self) -> Result<AccountID> { ... }
    fn mptoken_issuance_id(&self) -> Result<Hash192> { ... }
    fn mpt_amount(&self) -> Result<Option<u64>> { ... }
    fn locked_amount(&self) -> Result<Option<u64>> { ... }
    fn owner_node(&self) -> Result<u64> { ... }
    fn previous_txn_id(&self) -> Result<Hash256> { ... }
    fn previous_txn_lgr_seq(&self) -> Result<u32> { ... }
    fn confidential_balance_inbox(&self) -> Result<Option<StandardBlob>> { ... }
    fn confidential_balance_spending(&self) -> Result<Option<StandardBlob>> { ... }
    fn confidential_balance_version(&self) -> Result<Option<u32>> { ... }
    fn issuer_encrypted_balance(&self) -> Result<Option<StandardBlob>> { ... }
    fn auditor_encrypted_balance(&self) -> Result<Option<StandardBlob>> { ... }
    fn holder_encryption_key(&self) -> Result<Option<StandardBlob>> { ... }
}

Expand description

Trait providing access to fields specific to MPToken objects in any ledger.

Provided Methods§

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fn account(&self) -> Result<AccountID>

The owner (holder) of these MPTs.

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fn mptoken_issuance_id(&self) -> Result<Hash192>

The MPTokenIssuance identifier.

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fn mpt_amount(&self) -> Result<Option<u64>>

The amount of tokens currently held by the owner. The minimum is 0 and the maximum is 2^63-1.

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fn locked_amount(&self) -> Result<Option<u64>>

The amount of tokens currently locked up (for example, in escrow).

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fn owner_node(&self) -> Result<u64>

A hint indicating which page of the owner directory links to this entry, in case the directory consists of multiple pages.

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fn previous_txn_id(&self) -> Result<Hash256>

The identifying hash of the transaction that most recently modified this entry.

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fn previous_txn_lgr_seq(&self) -> Result<u32>

The sequence of the ledger that contains the transaction that most recently modified this object.

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fn confidential_balance_inbox(&self) -> Result<Option<StandardBlob>>

Encrypted inbox balance that receives incoming confidential transfers. Before it can be spent, the holder must merge it into their spending balance using the ConfidentialMPTMergeInbox transaction. Present when the holder has a confidential balance.

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fn confidential_balance_spending(&self) -> Result<Option<StandardBlob>>

Encrypted spending balance used to generate proofs for outgoing transactions. Present when the holder has a confidential balance.

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fn confidential_balance_version(&self) -> Result<Option<u32>>

Version number that increments each time the spending balance changes. This version is cryptographically bound to ZKPs in outgoing transactions to prevent replay attacks and ensure proof validity. If the version changes between proof generation and submission, the transaction will fail.

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