BinaryMetadataSyncListener (Nuxeo 2021.53.3 API Documentation)

java.lang.Object
- org.nuxeo.binary.metadata.internals.listeners.BinaryMetadataSyncListener

All Implemented Interfaces:

javax.transaction.Synchronization, EventListener
```
public class BinaryMetadataSyncListener
extends Object
implements EventListener, javax.transaction.Synchronization
```
Handle document and blob updates according to following rules in an event context:
- Define if rule should be executed in async or sync mode.
- If creation, write metadata from Blob to doc.
- If Blob dirty and document metadata dirty, write metadata from doc to Blob.
- If Blob dirty and document metadata not dirty, write metadata from Blob to doc.
- If Blob not dirty and document metadata dirty, write metadata from doc to Blob.
Since:

7.1

Nested Class Summary

Nested Classes
Modifier and Type Class Description

protected static class BinaryMetadataSyncListener.DocumentMetadataMappingUpdates

Field Summary

Fields
Modifier and Type	Field	Description
`protected static ThreadLocal<Boolean>`	`IS_ENLISTED`
`protected static ThreadLocal<List<BinaryMetadataSyncListener.DocumentMetadataMappingUpdates>>`	`TRANSACTION_UPDATES`

Constructor Summary

Constructors
Constructor Description

BinaryMetadataSyncListener()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`afterCompletion(int status)`
`void`	`beforeCompletion()`
`void`	`handleEvent(Event event)`	Handle the given event.
`protected boolean`	`registerSynchronization(javax.transaction.Synchronization sync)`

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

- Field Detail
  - IS_ENLISTED
```
protected static final ThreadLocal<Boolean> IS_ENLISTED
```
  - TRANSACTION_UPDATES
```
protected static final ThreadLocal<List<BinaryMetadataSyncListener.DocumentMetadataMappingUpdates>> TRANSACTION_UPDATES
```
- Constructor Detail
  - BinaryMetadataSyncListener
```
public BinaryMetadataSyncListener()
```
- Method Detail
  - handleEvent
```
public void handleEvent(Event event)
```
    Description copied from interface: EventListener
    
    Handle the given event. The listener can cancel the event by calling Event.cancel()
    
    Specified by:
    
    handleEvent in interface EventListener
    
    Parameters:
    
    event - the event
  - beforeCompletion
```
public void beforeCompletion()
```
    Specified by:
    
    beforeCompletion in interface javax.transaction.Synchronization
  - afterCompletion
```
public void afterCompletion(int status)
```
    Specified by:
    
    afterCompletion in interface javax.transaction.Synchronization
  - registerSynchronization
```
protected boolean registerSynchronization(javax.transaction.Synchronization sync)
```