com.vaadin.signals.impl.Snapshot API 24.8.4 | Vaadin

com.vaadin.signals.impl.

java.lang.Object

com.vaadin.signals.impl.TreeRevision

com.vaadin.signals.impl.Snapshot

public class Snapshot extends TreeRevision

An immutable tree revision.

Constructor Summary

Constructors

Constructor

Description

Snapshot(Id ownerId, boolean includeMax)

Creates an empty snapshot.

Snapshot(MutableTreeRevision base)

Creates a new snapshot from a mutable tree revision.
Method Summary

Methods inherited from class com.vaadin.signals.impl.TreeRevision
assertValidTree, data, nodes, originalInserts, ownerId

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details
- Snapshot
  
  public Snapshot(MutableTreeRevision base)
  
  Creates a new snapshot from a mutable tree revision.
  
  Parameters:
  
  base - the mutable base revision to copy, not null
- Snapshot
  
  public Snapshot(Id ownerId, boolean includeMax)
  
  Creates an empty snapshot. The snapshot contains an empty root node with Id.ZERO that is used for tracking signal values and optionally also another empty root node with Id.MAX that is used for tracking metadata.
  
  Parameters:
  
  ownerId - the id of the tree owner, not null
  
  includeMax - flag indicating whether an additional root node should be created for tracking metadata