EventGenerator (The Adobe Experience Manager SDK 2021.11.6013.20211105T162756Z-211000)

java.lang.Object
- org.apache.jackrabbit.oak.plugins.observation.EventGenerator

```
public class EventGenerator
extends Object
```
Continuation-based content diff implementation that generates EventHandler callbacks by recursing down a content diff in a way that guarantees that only a finite number of callbacks will be made during a generate() method call, regardless of how large or complex the content diff is.
A simple usage pattern would look like this:
```
 EventGenerator generator = new EventGenerator(before, after, handler);
 while (!generator.isDone()) {
     generator.generate();
 }
 
```

Constructor Summary

Constructors
Constructor	Description
`EventGenerator()`	Creates a new generator instance.
`EventGenerator(@NotNull NodeState before, @NotNull NodeState after, @NotNull EventHandler handler)`	Creates a new generator instance for processing the given changes.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`addHandler(NodeState before, NodeState after, EventHandler handler)`
`void`	`generate()`	Generates a finite number of `EventHandler` callbacks based on the content changes that have yet to be processed.
`boolean`	`isDone()`	Checks whether there are no more content changes to be processed.

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

- Constructor Detail
  - EventGenerator
```
public EventGenerator()
```
    Creates a new generator instance. Changes to process need to be added through addHandler(NodeState, NodeState, EventHandler)
  - EventGenerator
```
public EventGenerator(@NotNull
                      @NotNull NodeState before,
                      @NotNull
                      @NotNull NodeState after,
                      @NotNull
                      @NotNull EventHandler handler)
```
    Creates a new generator instance for processing the given changes.
- Method Detail
  - addHandler
```
public void addHandler(NodeState before,
                       NodeState after,
                       EventHandler handler)
```
  - isDone
```
public boolean isDone()
```
    Checks whether there are no more content changes to be processed.
  - generate
```
public void generate()
```
    Generates a finite number of EventHandler callbacks based on the content changes that have yet to be processed. Further processing (even if no callbacks were made) may be postponed to a future generate() call, until the isDone() method finally return true.