Module io.github.mmm.value.observable

Package io.github.mmm.value.observable.container

Interface ContainerChange<C,E>

Type Parameters:

C - type of the container.

E - type of the elements.

All Known Subinterfaces:

CollectionChange<C,E>, ListChange<E>, MapChange<K,V>, SetChange<E>

public interface ContainerChange<C,E>

Change that signals the modification of a container (e.g. Collection or Map).

Since:

1.0.0

See Also:

• ObservableEvent.getChange()

Method Summary

Modifier and Type	Method	Description
C	getContainer()
int	getCount()
E	getElement(int index)
ChangeType	getType()

Method Details

getContainer

C getContainer()

Returns:

the container that changed.

getType

ChangeType getType()

Returns:

the ChangeType as one of ChangeType.ADD, ChangeType.UPDATE, or ChangeType.REMOVE.

getElement

E getElement(int index)

Parameters:

index - the index of the changed element in the range from 0 to count - 1.

Returns:

the element at the given index. In case of ChangeType.REMOVE the removed element, in case of ChangeType.ADD the inserted element, and in case of ChangeType.UPDATE the updated element.

getCount

int getCount()

Returns:

the number of elements that have changed.