Package org.springframework.beans

Interface Mergeable

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:

  • Method Summary

    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 Details

    • isMergeEnabled

      boolean isMergeEnabled()
      Is merging enabled for this particular instance?

    • merge

      Object merge(@Nullable 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).