DataBufferObserverSet

Kotlin |Java

public final classDataBufferObserverSetimplementsDataBufferObserver,DataBufferObserver.Observable

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

See also
`DataBufferObserver`

Summary

Public constructors
`DataBufferObserverSet()`

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

publicDataBufferObserverSet()

public voidaddObserver(DataBufferObserverobserver)

public voidclear()

Clears the set of observers.

public booleanhasObservers()

Returns true if this has any registered observers.

public voidonDataChanged()

Called when the overall data changes.

public voidonDataRangeChanged(int position, int count)

Called when a range of items changes.

public voidonDataRangeInserted(int position, int count)

Called when a range of items is inserted.

public voidonDataRangeMoved(int fromPosition, int toPosition, int count)

Called when a range of items is moved.

public voidonDataRangeRemoved(int position, int count)

Called when a range of items is removed.

public voidremoveObserver(DataBufferObserverobserver)

Unregister the given observer from receiving change notifications.