Package com.vaadin.flow.data.provider.hierarchy

Interface HierarchicalArrayUpdater.HierarchicalUpdate

All Superinterfaces:

ArrayUpdater.Update, Serializable

Enclosing interface:

HierarchicalArrayUpdater

public static interface HierarchicalArrayUpdater.HierarchicalUpdate
extends ArrayUpdater.Update

Array updater strategy that is aware of hierarchical changes.

Method Summary

Modifier and Type	Method	Description
void	clear(int start, int length, String parentKey)	Clears length elements in array from the start position.
void	commit()	Commits enqueued function calls added via enqueue(String, Serializable...).
void	commit(int updateId, String parentKey, int levelSize)	Commits changes for the given updateId and parent key.
void	enqueue(String name, Serializable... arguments)	Enqueue function call with the given arguments.
void	set(int start, List<elemental.json.JsonValue> items, String parentKey)	Sets the items at the start position.

Methods inherited from interface com.vaadin.flow.data.provider.ArrayUpdater.Update

clear, commit, set

Method Details

clear

void clear(int start,
 int length,
 String parentKey)

Clears length elements in array from the start position.

Parameters:

start - the start index

length - the number of elements to clear

parentKey - Parent item key that cleared range affects

set

void set(int start,
 List<elemental.json.JsonValue> items,
 String parentKey)

Sets the items at the start position.

Parameters:

start - the start index

items - the items to set

parentKey - Parent item key where given items belongs to

commit

void commit()

Commits enqueued function calls added via enqueue(String, Serializable...).

enqueue

void enqueue(String name,
 Serializable... arguments)

Enqueue function call with the given arguments.

Parameters:

name - the name of the function to call, may contain dots to indicate a function on a property.

arguments - the arguments to pass to the function. Must be of a type supported by the communication mechanism, as defined by JsonCodec

See Also:

• JsonCodec for supported argument types

commit

void commit(int updateId,
 String parentKey,
 int levelSize)

Commits changes for the given updateId and parent key.

Parameters:

updateId - the update identifier of the commit for the target parentKey

parentKey - target parent key

levelSize - Total number of direct child items for the given parent key