Package com.vaadin.flow.signals.shared.impl

Class MutableTreeRevision

java.lang.Object

com.vaadin.flow.signals.shared.impl.TreeRevision

com.vaadin.flow.signals.shared.impl.MutableTreeRevision

All Implemented Interfaces:

Serializable

public class MutableTreeRevision
extends TreeRevision

A tree revision that can be mutated by applying signal commands.

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
MutableTreeRevision(TreeRevision base)	Creates a new mutable tree revision as a copy of the provided base revision.

Method Summary

Modifier and Type	Method	Description
void	apply(SignalCommand command, @Nullable com.vaadin.flow.signals.shared.impl.MutableTreeRevision.CommandDispatcher resultCollector)	Applies a single command and passes the results to the provided handler.
void	apply(List<SignalCommand> commands)	Applies a sequence of commands and ignores the results.
Map<Id,CommandResult>	applyAndGetResults(List<SignalCommand> commands)	Applies a sequence of commands and collects the results to a map.

Methods inherited from class com.vaadin.flow.signals.shared.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

MutableTreeRevision

public MutableTreeRevision(TreeRevision base)

Creates a new mutable tree revision as a copy of the provided base revision.

Parameters:

base - the base revision to copy, not null

Method Details

applyAndGetResults

public Map<Id,CommandResult> applyAndGetResults(List<SignalCommand> commands)

Applies a sequence of commands and collects the results to a map.

Parameters:

commands - the list of commands to apply, not null

Returns:

a map from command id to operation results, not null

apply

public void apply(List<SignalCommand> commands)

Applies a sequence of commands and ignores the results.

Parameters:

commands - the list of commands to apply, not null

apply

public void apply(SignalCommand command,
 @Nullable com.vaadin.flow.signals.shared.impl.MutableTreeRevision.CommandDispatcher resultCollector)

Applies a single command and passes the results to the provided handler. Note that the handler will be invoked exactly once for most types of commands but it will be invoked multiple times for transactions.

Parameters:

command - the command to apply, not null

resultCollector - callback to collect command results, or null to ignore results