IDBIndex

IDBIndex interface of the IndexedDB API provides asynchronous access to an index in a database. An index is a kind of object store for looking up records in another object store, called the referenced object store. You use this interface to retrieve data.

MDN Reference

Properties

keyPath

val keyPath: Any

MDN Reference

multiEntry

val multiEntry: Boolean

MDN Reference

name

var name: String

Returns the name of the index.

objectStore

val objectStore: IDBObjectStore

Returns the IDBObjectStore the index belongs to.

unique

val unique: Boolean

MDN Reference

Functions

count

fun count(query: IDBKeyRange): IDBRequest<Int>

fun count(query: IDBValidKey = definedExternally): IDBRequest<Int>

Retrieves the number of records matching the given key or key range in query.

get

operator fun get(query: IDBKeyRange): IDBRequest<*>

operator fun get(query: IDBValidKey): IDBRequest<*>

Retrieves the value of the first record matching the given key or key range in query.

getAll

fun getAll(query: IDBKeyRange?, count: Int = definedExternally): IDBRequest<ReadonlyArray<*>>

fun getAll(query: IDBValidKey? = definedExternally, count: Int = definedExternally): IDBRequest<ReadonlyArray<*>>

Retrieves the values of the records matching the given key or key range in query (up to count if given).

getAllKeys

fun getAllKeys(query: IDBKeyRange?, count: Int = definedExternally): IDBRequest<ReadonlyArray<IDBValidKey>>

fun getAllKeys(query: IDBValidKey? = definedExternally, count: Int = definedExternally): IDBRequest<ReadonlyArray<IDBValidKey>>

Retrieves the keys of records matching the given key or key range in query (up to count if given).

getKey

fun getKey(query: IDBKeyRange): IDBRequest<IDBValidKey?>

fun getKey(query: IDBValidKey): IDBRequest<IDBValidKey?>

Retrieves the key of the first record matching the given key or key range in query.

openCursor

fun openCursor(query: IDBKeyRange?, direction: IDBCursorDirection = definedExternally): IDBRequest<IDBCursorWithValue?>

fun openCursor(query: IDBValidKey? = definedExternally, direction: IDBCursorDirection = definedExternally): IDBRequest<IDBCursorWithValue?>

Opens a cursor over the records matching query, ordered by direction. If query is null, all records in index are matched.

openKeyCursor

fun openKeyCursor(query: IDBKeyRange?, direction: IDBCursorDirection = definedExternally): IDBRequest<IDBCursor?>

fun openKeyCursor(query: IDBValidKey? = definedExternally, direction: IDBCursorDirection = definedExternally): IDBRequest<IDBCursor?>

Opens a cursor with key only flag set over the records matching query, ordered by direction. If query is null, all records in index are matched.