[android-components](../../index.md) / [mozilla.components.support.base.utils](../index.md) / [SharedPreferencesCache](index.md) / [cacheKey](./cache-key.md)

# cacheKey

`abstract val cacheKey: `[`String`](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html) [(source)](https://github.com/mozilla-mobile/android-components/blob/master/components/support/base/src/main/java/mozilla/components/support/base/utils/SharedPreferencesCache.kt#L25)

Name of the 'key' under which serialized data is stored within the cache.

