## Uses of Interface
org.apache.cayenne.ValueHolder

- Packages that use ValueHolder
  Package | Description
  --- | ---
  org.apache.cayenne.access | Contains classes that make up Cayenne ORM stack.
  org.apache.cayenne.reflect |
  org.apache.cayenne.util | General utility classes.

- - ### Uses of ValueHolder in org.apache.cayenne.access

    Classes in org.apache.cayenne.access that implement ValueHolder
    Modifier and Type | Class | Description
    --- | --- | ---
    `class` | `ToManyList<E>` | A list that holds objects for to-many relationships.
    `class` | `ToManySet<E>` |

  - ### Uses of ValueHolder in org.apache.cayenne.reflect

    Methods in org.apache.cayenne.reflect that return ValueHolder
    Modifier and Type | Method | Description
    --- | --- | ---
    `protected abstract ValueHolder` | BaseToManyProperty.`createCollectionValueHolder​(Object object)` | Creates a Collection for an object.
    `protected ValueHolder` | BaseToManyProperty.`ensureCollectionValueHolderSet​(Object object)` | Checks that an object's List field described by this property is set, injecting a List if needed.

  - ### Uses of ValueHolder in org.apache.cayenne.util

    Classes in org.apache.cayenne.util that implement ValueHolder
    Modifier and Type | Class | Description
    --- | --- | ---
    `class` | `IndexPropertyList` | A List implementation that would maintain its internal ordering based on some object numeric "index" property.
    `class` | `PersistentObjectHolder<E>` | A ValueHolder implementation that holds a single Persistent object related to an object used to initialize PersistentObjectHolder.
    `class` | `PersistentObjectList<E>` | A list of persistent objects lazily resolved on the first access.
    `class` | `PersistentObjectMap` |
    `class` | `PersistentObjectSet<E>` |