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## org.apache.cayenne
Class DataChannelSyncCallbackAction

    java.lang.Object
      org.apache.cayenne.DataChannelSyncCallbackAction

All Implemented Interfaces:
  GraphChangeHandler

    public abstract class DataChannelSyncCallbackAction

extends Object
implements GraphChangeHandler

Since:
  3.1

Method Summary
`abstract void` | `applyPostCommit()`
`abstract void` | `applyPreCommit()`
`void` | `arcCreated(Object nodeId, Object targetNodeId, Object arcId)` Notifies implementing object that a new arc was created between two nodes.
`void` | `arcDeleted(Object nodeId, Object targetNodeId, Object arcId)` Notifies implementing object that an arc between two nodes was deleted.
`static DataChannelSyncCallbackAction` | `getCallbackAction(LifecycleCallbackRegistry callbackRegistry, GraphManager graphManager, GraphDiff changes, int syncType)`
`protected abstract boolean` | `hasListeners()`
`void` | `nodeCreated(Object nodeId)` Notifies implementing object that a new node was created in the graph.
`void` | `nodeIdChanged(Object nodeId, Object newId)` Notifies implementing object that a node was assigned a new id.
`void` | `nodePropertyChanged(Object nodeId, String property, Object oldValue, Object newValue)` Notifies implementing object that a node's property was modified.
`void` | `nodeRemoved(Object nodeId)` Notifies implementing object that a node was removed from the graph.

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

Method Detail

### getCallbackAction

    public static DataChannelSyncCallbackAction getCallbackAction(LifecycleCallbackRegistry callbackRegistry,
                                                                  GraphManager graphManager,
                                                                  GraphDiff changes,
                                                                  int syncType)

### hasListeners

    protected abstract boolean hasListeners()

### applyPreCommit

    public abstract void applyPreCommit()

### applyPostCommit

    public abstract void applyPostCommit()

### nodeCreated

    public void nodeCreated(Object nodeId)

  Description copied from interface: `GraphChangeHandler`
  Notifies implementing object that a new node was created in the graph.

  Specified by:
    `nodeCreated` in interface `GraphChangeHandler`

### nodeRemoved

    public void nodeRemoved(Object nodeId)

  Description copied from interface: `GraphChangeHandler`
  Notifies implementing object that a node was removed from the graph.

  Specified by:
    `nodeRemoved` in interface `GraphChangeHandler`

### arcCreated

    public void arcCreated(Object nodeId,
                           Object targetNodeId,
                           Object arcId)

  Description copied from interface: `GraphChangeHandler`
  Notifies implementing object that a new arc was created between two nodes.

  Specified by:
    `arcCreated` in interface `GraphChangeHandler`

### arcDeleted

    public void arcDeleted(Object nodeId,
                           Object targetNodeId,
                           Object arcId)

  Description copied from interface: `GraphChangeHandler`
  Notifies implementing object that an arc between two nodes was deleted.

  Specified by:
    `arcDeleted` in interface `GraphChangeHandler`

### nodeIdChanged

    public void nodeIdChanged(Object nodeId,
                              Object newId)

  Description copied from interface: `GraphChangeHandler`
  Notifies implementing object that a node was assigned a new id.

  Specified by:
    `nodeIdChanged` in interface `GraphChangeHandler`

### nodePropertyChanged

    public void nodePropertyChanged(Object nodeId,
                                    String property,
                                    Object oldValue,
                                    Object newValue)

  Description copied from interface: `GraphChangeHandler`
  Notifies implementing object that a node's property was modified.

  Specified by:
    `nodePropertyChanged` in interface `GraphChangeHandler`

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