org.apache.cayenne.remote

## Class SyncMessage

- java.lang.Object
- - org.apache.cayenne.remote.SyncMessage

- All Implemented Interfaces:
    Serializable, ClientMessage

      public class SyncMessage
      extends Object
      implements ClientMessage

  A message used for synchronization of the child with parent. It defines a few types of synchronization: "flush" (when the child sends its changes without a commit), "commit" (cascading flush with ultimate commit to the database), and "rollback" - cascading reverting of all uncommitted changes.
  Since:
    1.2
  See Also:
    Serialized Form

- - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `protected GraphDiff` | `senderChanges`
    `protected ObjectContext` | `source`
    `protected int` | `type`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `SyncMessage(ObjectContext source, int syncType, GraphDiff senderChanges)`

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `GraphDiff` | `getSenderChanges()`
    `ObjectContext` | `getSource()` Returns a source of SyncMessage.
    `int` | `getType()`
    `String` | `toString()` Returns a description of the type of message.

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

- - ### Field Detail

    - #### source

          protected transient ObjectContext source

    - #### type

          protected int type

    - #### senderChanges

          protected GraphDiff senderChanges

  - ### Constructor Detail

    - #### SyncMessage

          public SyncMessage(ObjectContext source,
                     int syncType,
                     GraphDiff senderChanges)

  - ### Method Detail

    - #### getSource

          public ObjectContext getSource()

      Returns a source of SyncMessage.

    - #### getType

          public int getType()

    - #### getSenderChanges

          public GraphDiff getSenderChanges()

    - #### toString

          public String toString()

      Returns a description of the type of message. Possibilities are "flush-sync", "flush-cascade-sync", "rollback-cascade-sync" or "unknown-sync".
      Overrides:
        `toString` in class `Object`

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