DataBufferObserverSet

Kotlin |Java

class DataBufferObserverSet : DataBufferObserver, DataBufferObserver.Observable

Utility class for managing a set of observers and distributing their notifications.

See also
`DataBufferObserver`

Summary

Public constructors
`DataBufferObserverSet()`

Public functions
`Unit`	`addObserver(observer: DataBufferObserver!)` Register the given observer for receiving change notifications.
`Unit`	`clear()` Clears the set of observers.
`Boolean`	`hasObservers()` Returns true if this has any registered observers.
`Unit`	`onDataChanged()` Called when the overall data changes.
`Unit`	`onDataRangeChanged(position: Int, count: Int)` Called when a range of items changes.
`Unit`	`onDataRangeInserted(position: Int, count: Int)` Called when a range of items is inserted.
`Unit`	`onDataRangeMoved(fromPosition: Int, toPosition: Int, count: Int)` Called when a range of items is moved.
`Unit`	`onDataRangeRemoved(position: Int, count: Int)` Called when a range of items is removed.
`Unit`	`removeObserver(observer: DataBufferObserver!)` Unregister the given observer from receiving change notifications.

DataBufferObserverSet()

fun addObserver(observer: DataBufferObserver!): Unit

fun clear(): Unit

Clears the set of observers.

fun hasObservers(): Boolean

Returns true if this has any registered observers.

fun onDataChanged(): Unit

Called when the overall data changes.

fun onDataRangeChanged(position: Int, count: Int): Unit

Called when a range of items changes.

fun onDataRangeInserted(position: Int, count: Int): Unit

Called when a range of items is inserted.

fun onDataRangeMoved(fromPosition: Int, toPosition: Int, count: Int): Unit

Called when a range of items is moved.

fun onDataRangeRemoved(position: Int, count: Int): Unit

Called when a range of items is removed.

fun removeObserver(observer: DataBufferObserver!): Unit

Unregister the given observer from receiving change notifications.