Class: UniqueIndexManager

Manages unique constraints for a model.

Uses adapter setIfNotExists for race-free constraints when available, otherwise falls back to check-then-set (embedded mode only).

Constructors

new UniqueIndexManager(adapter): UniqueIndexManager

Parameter	Type
`adapter`	`FlashcoreAdapter`<`string`, `unknown`>

acquire(
   options, 
   value, 
recordId): Promise<void>

Acquire a unique constraint for a record.

Parameter	Type	Description
`options`	`UniqueConstraintOptions`	Model/field options
`value`	`unknown`	The unique field value
`recordId`	`string`	The record ID claiming this value

Promise<void>

UniqueConstraintError if value is already taken

exists(options, value): Promise<boolean>

Check if a unique value exists.

Parameter	Type	Description
`options`	`UniqueConstraintOptions`	Model/field options
`value`	`unknown`	The unique field value

Promise<boolean>

True if value exists

lookup(options, value): Promise<string>

Look up the record ID for a unique value.

Parameter	Type	Description
`options`	`UniqueConstraintOptions`	Model/field options
`value`	`unknown`	The unique field value

Promise<string>

Record ID or null if not found

release(options, value): Promise<void>

Release a unique constraint.

Parameter	Type	Description
`options`	`UniqueConstraintOptions`	Model/field options
`value`	`unknown`	The unique field value to release

Promise<void>

update(
   options, 
   oldValue, 
   newValue, 
recordId): Promise<void>

Update a unique constraint (release old, acquire new).

Promise<void>