Core/io.telereso.kmp.core/ObservableSettings

ObservableSettings

A handle to a listener instance returned by one of the addListener methods of ObservableSettings, so it can be deactivated as needed.

Inheritors

MapSettings

Properties

keys

abstract val keys: Set<String>

Returns a Set containing all the keys present in this Settings.

listener

abstract var listener: Settings.Listener?

size

abstract val size: Int

Returns the number of key-value pairs present in this Settings.

Functions

addBooleanListener

abstract fun addBooleanListener(key: String, defaultValue: Boolean, callback: (Boolean) -> Unit): Settings.Listener

Adds a listener which will call the supplied callback anytime the value at key changes. A ISettings reference is returned which can be used to halt callbacks by calling ISettings.deactivate. A strong reference should be held to the CommonSettings returned by this method in order to avoid it being garbage-collected.

addBooleanOrNullListener

abstract fun addBooleanOrNullListener(key: String, callback: (Boolean?) -> Unit): Settings.Listener

addDoubleListener

abstract fun addDoubleListener(key: String, defaultValue: Double, callback: (Double) -> Unit): Settings.Listener

addDoubleOrNullListener

abstract fun addDoubleOrNullListener(key: String, callback: (Double?) -> Unit): Settings.Listener

addFloatListener

abstract fun addFloatListener(key: String, defaultValue: Float, callback: (Float) -> Unit): Settings.Listener

addFloatOrNullListener

abstract fun addFloatOrNullListener(key: String, callback: (Float?) -> Unit): Settings.Listener

addIntListener

abstract fun addIntListener(key: String, defaultValue: Int, callback: (Int) -> Unit): Settings.Listener

addIntOrNullListener

abstract fun addIntOrNullListener(key: String, callback: (Int?) -> Unit): Settings.Listener

addLongListener

abstract fun addLongListener(key: String, defaultValue: Long, callback: (Long) -> Unit): Settings.Listener

addLongOrNullListener

abstract fun addLongOrNullListener(key: String, callback: (Long?) -> Unit): Settings.Listener

addStringListener

abstract fun addStringListener(key: String, defaultValue: String, callback: (String) -> Unit): Settings.Listener

addStringOrNullListener

abstract fun addStringOrNullListener(key: String, callback: (String?) -> Unit): Settings.Listener

cancelRemovingExpiredKeys

abstract fun cancelRemovingExpiredKeys()

In case you need to stop removing expired keys

clear

abstract fun clear()

Clears all values stored in this Settings instance.

contains

inline operator fun Settings.contains(key: String): Boolean

Equivalent to Settings.hasKey

get

inline operator fun <T : Any> Settings.get(key: String): T?

Get the typed value stored at key if present, or return null if not. Throws IllegalArgumentException if T is not one of Int, Long, String, Float, Double, or Boolean.

inline operator fun Settings.get(key: String, defaultValue: Boolean): Boolean

Equivalent to Settings.getBoolean

inline operator fun Settings.get(key: String, defaultValue: Double): Double

Equivalent to Settings.getDouble

inline operator fun Settings.get(key: String, defaultValue: Float): Float

Equivalent to Settings.getFloat

inline operator fun Settings.get(key: String, defaultValue: Int): Int

Equivalent to Settings.getInt

inline operator fun Settings.get(key: String, defaultValue: Long): Long

Equivalent to Settings.getLong

inline operator fun Settings.get(key: String, defaultValue: String): String

Equivalent to Settings.getString

getBoolean

abstract fun getBoolean(key: String, defaultValue: Boolean): Boolean

Returns the Boolean value stored at key, or defaultValue if no value was stored. If a value of a different type was stored at key, the behavior is not defined.

getBooleanFlow

abstract fun getBooleanFlow(key: String): Flow<Boolean?>

Returns a Flow Boolean value stored at key, or null if no value was stored. If a value of a different type was stored at key, the behavior is not defined.

abstract fun getBooleanFlow(key: String, defaultValue: Boolean): Flow<Boolean>

Returns a Flow Boolean value stored at key, or defaultValue if no value was stored. If a value of a different type was stored at key, the behavior is not defined.

getBooleanOrNull

abstract fun getBooleanOrNull(key: String): Boolean?

Returns the Boolean value stored at key, or null if no value was stored. If a value of a different type was stored at key, the behavior is not defined.

getDouble

abstract fun getDouble(key: String, defaultValue: Double): Double

Returns the Double value stored at key, or defaultValue if no value was stored. If a value of a different type was stored at key, the behavior is not defined.

getDoubleFlow

abstract fun getDoubleFlow(key: String): Flow<Double?>

Returns a Flow Double value stored at key, or null if no value was stored. If a value of a different type was stored at key, the behavior is not defined.

abstract fun getDoubleFlow(key: String, defaultValue: Double): Flow<Double>

Returns a Flow Double value stored at key, or defaultValue if no value was stored. If a value of a different type was stored at key, the behavior is not defined.

getDoubleOrNull

abstract fun getDoubleOrNull(key: String): Double?

Returns the Double value stored at key, or null if no value was stored. If a value of a different type was stored at key, the behavior is not defined.

getExpirableString

abstract fun getExpirableString(key: String): String?

abstract fun getExpirableString(key: String, default: String?): String?

getFloat

abstract fun getFloat(key: String, defaultValue: Float): Float

Returns the Float value stored at key, or defaultValue if no value was stored. If a value of a different type was stored at key, the behavior is not defined.

getFloatFlow

abstract fun getFloatFlow(key: String): Flow<Float?>

Returns a Flow Float value stored at key, or null if no value was stored. If a value of a different type was stored at key, the behavior is not defined.

abstract fun getFloatFlow(key: String, defaultValue: Float): Flow<Float>

Returns a Flow Float value stored at key, or defaultValue if no value was stored. If a value of a different type was stored at key, the behavior is not defined.

getFloatOrNull

abstract fun getFloatOrNull(key: String): Float?

Returns the Float value stored at key, or null if no value was stored. If a value of a different type was stored at key, the behavior is not defined.

getInt

abstract fun getInt(key: String, defaultValue: Int): Int

Returns the Int value stored at key, or defaultValue if no value was stored. If a value of a different type was stored at key, the behavior is not defined.

getIntFlow

abstract fun getIntFlow(key: String): Flow<Int?>

Returns a Flow Int value stored at key, or null if no value was stored. If a value of a different type was stored at key, the behavior is not defined.

abstract fun getIntFlow(key: String, defaultValue: Int): Flow<Int>

Returns a Flow Int value stored at key, or defaultValue if no value was stored. If a value of a different type was stored at key, the behavior is not defined.

getIntOrNull

abstract fun getIntOrNull(key: String): Int?

Returns the Int value stored at key, or null if no value was stored. If a value of a different type was stored at key, the behavior is not defined.

getLong

abstract fun getLong(key: String, defaultValue: Long): Long

Returns the Long value stored at key, or defaultValue if no value was stored. If a value of a different type was stored at key, the behavior is not defined.

getLongFlow

abstract fun getLongFlow(key: String): Flow<Long?>

Returns a Flow Long value stored at key, or null if no value was stored. If a value of a different type was stored at key, the behavior is not defined.

abstract fun getLongFlow(key: String, defaultValue: Long): Flow<Long>

Returns a Flow Long value stored at key, or defaultValue if no value was stored. If a value of a different type was stored at key, the behavior is not defined.

getLongOrNull

abstract fun getLongOrNull(key: String): Long?

Returns the Long value stored at key, or null if no value was stored. If a value of a different type was stored at key, the behavior is not defined.

getString

abstract fun getString(key: String, defaultValue: String): String

Returns the String value stored at key, or defaultValue if no value was stored. If a value of a different type was stored at key, the behavior is not defined.

getStringFlow

abstract fun getStringFlow(key: String): Flow<String?>

Returns a Flow String value stored at key, or null if no value was stored. If a value of a different type was stored at key, the behavior is not defined.

abstract fun getStringFlow(key: String, defaultValue: String): Flow<String>

Returns a Flow String value stored at key, or defaultValue if no value was stored. If a value of a different type was stored at key, the behavior is not defined.

getStringOrNull

abstract fun getStringOrNull(key: String): String?

Returns the String value stored at key, or null if no value was stored. If a value of a different type was stored at key, the behavior is not defined.

hasKey

abstract fun hasKey(key: String): Boolean

Returns true if there is a value stored at key, or false otherwise.

minusAssign

inline operator fun Settings.minusAssign(key: String)

Equivalent to Settings.remove

putBoolean

abstract fun putBoolean(key: String, value: Boolean)

Stores the Boolean value at key.

putDouble

abstract fun putDouble(key: String, value: Double)

Stores the Double value at key.

putExpirableString

abstract fun putExpirableString(key: String, value: String, exp: Long)

open fun putExpirableString(key: String, value: String, exp: Duration)

putFloat

abstract fun putFloat(key: String, value: Float)

Stores the Float value at key.

putInt

abstract fun putInt(key: String, value: Int)

Stores the Int value at key.

putLong

abstract fun putLong(key: String, value: Long)

Stores the Long value at key.

putString

abstract fun putString(key: String, value: String)

Stores the String value at key.

remove

abstract fun remove(key: String)

Removes the value stored at key.

removeExpiredKeys

abstract fun removeExpiredKeys()

Will loop all keys and remove the expired ones

set

inline operator fun <T : Any> Settings.set(key: String, value: T?)

Stores a typed value at key, or remove what's there if value is null. Throws IllegalArgumentException if T is not one of Int, Long, String, Float, Double, or Boolean.

inline operator fun Settings.set(key: String, value: Boolean)

Equivalent to Settings.putBoolean

inline operator fun Settings.set(key: String, value: Double)

Equivalent to Settings.putDouble

inline operator fun Settings.set(key: String, value: Float)

Equivalent to Settings.putFloat

inline operator fun Settings.set(key: String, value: Int)

Equivalent to Settings.putInt

inline operator fun Settings.set(key: String, value: Long)

Equivalent to Settings.putLong

inline operator fun Settings.set(key: String, value: Nothing?)

Equivalent to Settings.remove

inline operator fun Settings.set(key: String, value: String)

Equivalent to Settings.putString