Package xyz.tcheeric.cashu.voucher.domain

Enum Class BackingStrategy

java.lang.Object

java.lang.Enum<BackingStrategy>

xyz.tcheeric.cashu.voucher.domain.BackingStrategy

All Implemented Interfaces:

Serializable, Comparable<BackingStrategy>, Constable

public enum BackingStrategy
extends Enum<BackingStrategy>

Backing strategy for voucher token amounts.

The backing strategy determines how many sats back a voucher and whether it can be split peer-to-peer. The merchant chooses the strategy at issuance based on the voucher's use case.

Strategy Comparison

Strategy	Token Amount	Splittable	Use Case
FIXED	Constant (e.g., 1 sat)	No	Tickets, passes
MINIMAL	Constant (e.g., 10 sats)	Yes (coarse)	Gift cards
PROPORTIONAL	Scaled to face value	Yes (fine)	Split payments

See Also:

• VoucherSecret

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Enum

Enum.EnumDesc<E extends Enum<E>>

Enum Constant Summary

Enum Constants

Enum Constant	Description
FIXED	Fixed minimal sat backing for non-splittable vouchers.
MINIMAL	Low constant sat backing for occasional splits.
PROPORTIONAL	Proportional sat backing scaled to face value for precise splits.

Method Summary

Modifier and Type	Method	Description
boolean	hasFineGrainedSplits()	Returns true if this strategy supports fine-grained splits.
boolean	isSplittable()	Returns true if this strategy allows splitting.
static BackingStrategy	valueOf(String name)	Returns the enum constant of this class with the specified name.
static BackingStrategy[]	values()	Returns an array containing the constants of this enum class, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, describeConstable, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Details

FIXED

public static final BackingStrategy FIXED

Fixed minimal sat backing for non-splittable vouchers.

Use for tickets, event passes, and single-use vouchers that must be redeemed whole. The token amount is a configurable constant (default: 1 sat).

Splitting is disabled - attempting to split a FIXED voucher should fail.

MINIMAL

public static final BackingStrategy MINIMAL

Low constant sat backing for occasional splits.

Use for gift cards, loyalty points, and store credit where splits are occasional. The token amount is a configurable constant (default: 10 sats).

Splitting is possible but with coarse granularity (limited split points).

PROPORTIONAL

public static final BackingStrategy PROPORTIONAL

Proportional sat backing scaled to face value for precise splits.

Use for splittable vouchers, shared payments, and group gifts where precise division is needed. Token amount scales with face value (default: 1 sat per minor unit, e.g., 1 sat per cent for EUR).

Splitting supports fine granularity (cent-level precision).

Method Details

values

public static BackingStrategy[] values()

Returns an array containing the constants of this enum class, in the order they are declared.

Returns:

an array containing the constants of this enum class, in the order they are declared

valueOf

public static BackingStrategy valueOf(String name)

Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum class has no constant with the specified name

NullPointerException - if the argument is null

isSplittable

public boolean isSplittable()

Returns true if this strategy allows splitting.

Returns:

true for MINIMAL and PROPORTIONAL, false for FIXED

hasFineGrainedSplits

public boolean hasFineGrainedSplits()

Returns true if this strategy supports fine-grained splits.

Returns:

true only for PROPORTIONAL