Mergeable (Spring Framework 4.3.30.RELEASE API)

All Known Implementing Classes:
ManagedArray, ManagedList, ManagedMap, ManagedProperties, ManagedSet, MockHttpServletRequestBuilder, MockMultipartHttpServletRequestBuilder
```
public interface Mergeable
```
Interface representing an object whose value set can be merged with that of a parent object.
Since:
2.0
Author:
Rob Harrop
See Also:
ManagedSet, ManagedList, ManagedMap, ManagedProperties

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`boolean`	`isMergeEnabled()`	Is merging enabled for this particular instance?
`Object`	`merge(Object parent)`	Merge the current value set with that of the supplied object.

- Method Detail
  - isMergeEnabled
```
boolean isMergeEnabled()
```
    Is merging enabled for this particular instance?
  - merge
```
Object merge(Object parent)
```
    Merge the current value set with that of the supplied object.
    The supplied object is considered the parent, and values in the callee's value set must override those of the supplied object.
    Parameters:
    parent - the object to merge with
    Returns:
    the result of the merge operation
    Throws:
    IllegalArgumentException - if the supplied parent is null
    IllegalStateException - if merging is not enabled for this instance (i.e. mergeEnabled equals false).