## Uses of Class
org.apache.cayenne.map.Relationship

- Packages that use Relationship
  Package | Description
  --- | ---
  org.apache.cayenne.map | Contains O/R mapping classes that store relational database metadata information and map it to Java classes.
  org.apache.cayenne.map.event |
  org.apache.cayenne.util | General utility classes.

- - ### Uses of Relationship in org.apache.cayenne.map

    Classes in org.apache.cayenne.map with type parameters of type Relationship
    Modifier and Type | Interface and Description
    --- | ---
    `interface` | `PathComponent<T extends Attribute,U extends Relationship>` A component in a path chain.

    Subclasses of Relationship in org.apache.cayenne.map
    Modifier and Type | Class and Description
    --- | ---
    `class` | `DbRelationship` A DbRelationship is a descriptor of a database inter-table relationship based on one or more primary key/foreign key pairs.
    `class` | `DbRelationshipDetected` A subclass of `DbRelationship` to hold some extra runtime information.
    `class` | `ObjRelationship` Describes an association between two Java classes mapped as source and target ObjEntity.

    Fields in org.apache.cayenne.map with type parameters of type Relationship
    Modifier and Type | Field and Description
    --- | ---
    `protected SortedMap<String,Relationship>` | Entity.`relationships`

    Methods in org.apache.cayenne.map with type parameters of type Relationship
    Modifier and Type | Method and Description
    --- | ---
    `<T extends Attribute,U extends Relationship> PathComponent<T,U>` | Entity.`lastPathComponent(Expression path, Map aliasMap)` Convenience method returning the last component in the path iterator.
    `abstract <T extends Attribute,U extends Relationship> Iterable<PathComponent<T,U>>` | Entity.`resolvePath(Expression pathExp, Map aliasMap)` Returns an Iterable over the path components with elements represented as `PathComponent` instances, encapsulating a relationship, an attribute or a subpath alias.

    Methods in org.apache.cayenne.map that return Relationship
    Modifier and Type | Method and Description
    --- | ---
    `Relationship` | Entity.`getAnyRelationship(Entity targetEntity)` Returns a relationship that has a specified entity as a target.
    `Relationship` | Entity.`getRelationship(String relName)` Returns relationship with name `relName`.
    `Relationship` | ObjEntity.`getRelationship(String name)` Returns a named Relationship that either belongs to this ObjEntity or is inherited.
    `abstract Relationship` | Relationship.`getReverseRelationship()` Returns a "complimentary" relationship going in the opposite direction.

    Methods in org.apache.cayenne.map that return types with arguments of type Relationship
    Modifier and Type | Method and Description
    --- | ---
    `SortedMap<String,? extends Relationship>` | Entity.`getRelationshipMap()` Returns an unmodifiable map of relationships sorted by name.
    `Collection<? extends Relationship>` | Entity.`getRelationships()` Returns an unmodifiable collection of Relationships that exist in this entity.

    Methods in org.apache.cayenne.map with parameters of type Relationship
    Modifier and Type | Method and Description
    --- | ---
    `void` | Entity.`addRelationship(Relationship relationship)` Adds new relationship to the entity.

  - ### Uses of Relationship in org.apache.cayenne.map.event

    Fields in org.apache.cayenne.map.event declared as Relationship
    Modifier and Type | Field and Description
    --- | ---
    `protected Relationship` | RelationshipEvent.`relationship`

    Methods in org.apache.cayenne.map.event that return Relationship
    Modifier and Type | Method and Description
    --- | ---
    `Relationship` | RelationshipEvent.`getRelationship()` Returns relationship associated with this event.

    Methods in org.apache.cayenne.map.event with parameters of type Relationship
    Modifier and Type | Method and Description
    --- | ---
    `void` | RelationshipEvent.`setRelationship(Relationship relationship)` Sets relationship associated with this event.

    Constructors in org.apache.cayenne.map.event with parameters of type Relationship
    Constructor and Description
    `RelationshipEvent(Object src, Relationship rel, Entity entity)` Creates a Relationship change event.
    `RelationshipEvent(Object src, Relationship rel, Entity entity, int id)` Creates a Relationship event of a specified type.
    `RelationshipEvent(Object src, Relationship rel, Entity entity, String oldName)` Creates a Relationship name change event.

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

    Methods in org.apache.cayenne.util that return Relationship
    Modifier and Type | Method and Description
    --- | ---
    `static Relationship` | NamedObjectFactory.`createRelationship(Entity srcEnt, Entity targetEnt, boolean toMany)` Creates a relationship using an appropriate factory class.

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