org.apache.cayenne.util

## Class DeepMergeOperation

- java.lang.Object
- - org.apache.cayenne.util.DeepMergeOperation

-     public class DeepMergeOperation
      extends Object

  An operation that merges changes from an object graph, whose objects are registered in some ObjectContext, to peer objects in an ObjectConext that is a child of that context. The merge terminates at hollow nodes in the parent context to avoid tripping over unresolved relationships.
  Since:
    1.2

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `DeepMergeOperation(ObjectContext context)`

  - ### Method Summary

    All Methods Instance Methods Concrete Methods Deprecated Methods
    Modifier and Type | Method and Description
    --- | ---
    `Object` | `merge(Object object, ClassDescriptor descriptor)` Deprecated. since 3.1 use `merge(Persistent)`.
    `<T extends Persistent> T` | `merge(T peerInParentContext)`
    `void` | `reset()` Deprecated. since 3.1 - unused as the object is now stateless

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

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

- - ### Constructor Detail

    - #### DeepMergeOperation

          public DeepMergeOperation(ObjectContext context)

  - ### Method Detail

    - #### reset

          @Deprecated
          public void reset()

      Deprecated. since 3.1 - unused as the object is now stateless

    - #### merge

          @Deprecated
          public Object merge(Object object,
                                           ClassDescriptor descriptor)

      Deprecated. since 3.1 use `merge(Persistent)`.

    - #### merge

          public <T extends Persistent> T merge(T peerInParentContext)

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