org.springframework.beans.factory.support

## Class ManagedList<E>

- java.lang.Object
- - java.util.AbstractCollection<E>
  - - java.util.AbstractList<E>
    - - java.util.ArrayList<E>
      - - org.springframework.beans.factory.support.ManagedList<E>

- All Implemented Interfaces:
    Serializable, Cloneable, Iterable<E>, Collection<E>, List<E>, RandomAccess, BeanMetadataElement, Mergeable
  Direct Known Subclasses:
    ManagedArray

      public class ManagedList<E>
      extends ArrayList<E>
      implements Mergeable, BeanMetadataElement

  Tag collection class used to hold managed List elements, which may include runtime bean references (to be resolved into bean objects).
  Since:
    27.05.2003
  Author:
    Rod Johnson, Rob Harrop, Juergen Hoeller
  See Also:
    Serialized Form

- - ### Field Summary

    - ### Fields inherited from class java.util.AbstractList

      `modCount`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `ManagedList()`
    `ManagedList(int initialCapacity)`

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `String` | `getElementTypeName()` Return the default element type name (class name) to be used for this list.
    `Object` | `getSource()` Return the configuration source `Object` for this metadata element (may be `null`).
    `boolean` | `isMergeEnabled()` Is merging enabled for this particular instance?
    `List<E>` | `merge(Object parent)` Merge the current value set with that of the supplied object.
    `void` | `setElementTypeName(String elementTypeName)` Set the default element type name (class name) to be used for this list.
    `void` | `setMergeEnabled(boolean mergeEnabled)` Set whether merging should be enabled for this collection, in case of a 'parent' collection value being present.
    `void` | `setSource(Object source)` Set the configuration source `Object` for this metadata element.

    - ### Methods inherited from class java.util.ArrayList

      `add, add, addAll, addAll, clear, clone, contains, ensureCapacity, get, indexOf, isEmpty, iterator, lastIndexOf, listIterator, listIterator, remove, remove, removeAll, removeRange, retainAll, set, size, subList, toArray, toArray, trimToSize`

    - ### Methods inherited from class java.util.AbstractList

      `equals, hashCode`

    - ### Methods inherited from class java.util.AbstractCollection

      `containsAll, toString`

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

      `finalize, getClass, notify, notifyAll, wait, wait, wait`

    - ### Methods inherited from interface java.util.List

      `containsAll, equals, hashCode`

- - ### Constructor Detail

    - #### ManagedList

          public ManagedList()

    - #### ManagedList

          public ManagedList(int initialCapacity)

  - ### Method Detail

    - #### setSource

          public void setSource(Object source)

      Set the configuration source `Object` for this metadata element.

      The exact type of the object will depend on the configuration mechanism used.

    - #### getSource

          public Object getSource()

      Description copied from interface: `BeanMetadataElement`
      Return the configuration source `Object` for this metadata element (may be `null`).
      Specified by:
        `getSource` in interface `BeanMetadataElement`

    - #### setElementTypeName

          public void setElementTypeName(String elementTypeName)

      Set the default element type name (class name) to be used for this list.

    - #### getElementTypeName

          public String getElementTypeName()

      Return the default element type name (class name) to be used for this list.

    - #### setMergeEnabled

          public void setMergeEnabled(boolean mergeEnabled)

      Set whether merging should be enabled for this collection, in case of a 'parent' collection value being present.

    - #### isMergeEnabled

          public boolean isMergeEnabled()

      Description copied from interface: `Mergeable`
      Is merging enabled for this particular instance?
      Specified by:
        `isMergeEnabled` in interface `Mergeable`

    - #### merge

          public List<E> merge(Object parent)

      Description copied from interface: `Mergeable`
      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.

      Specified by:
        `merge` in interface `Mergeable`
      Parameters:
        `parent` - the object to merge with
      Returns:
        the result of the merge operation