# com.beasys.commerce.foundation
RelationalReference Interface

public interface RelationalReference

Interface for metadata required to persist associations. Associations among classes require certain metadata for persistence:

- containingEntity: provides foreign key information to containing entity bean
- classID: identifies a subclass in the database. Used to persist subclasses in a single collection or map

All Known Implementing Classes
  `BelongingImpl`, `EntityImpl`

## Method Summary

`public `String`` | `get__classIdentifier`() Get relation identifier for this object (used to persist subclasses in a single collection or map)
`public `Belonging`` | `get__containingBelonging`() Get foreign key information about the bean that contains this object
`public `EJBObject`` | `get__containingEntity`() Get foreign key information about the bean that contains this object
`public `Object`` | `get__mapKey`() get map key
`public `Long`` | `get__sequenceNumber`() Get the sequencer number
`public void` | `set__containingBelonging`(`Belonging` belonging) Provides foreign key information about the bean that contains this object
`public void` | `set__containingEntity`(`EJBObject` containingEntity) Provides foreign key information about the bean that contains this object
`public void` | `set__mapKey`(`Object` mapKey) Provides map key information

## Method Detail

### get__classIdentifier() Method

    public String get__classIdentifier()

Get relation identifier for this object (used to persist subclasses in a single collection or map)

#### Returns

class identifier for this object.

### get__containingBelonging() Method

    public Belonging get__containingBelonging()

Get foreign key information about the bean that contains this object

#### Returns

ejbObject remote interface of the containing bean

### get__containingEntity() Method

    public EJBObject get__containingEntity()

Get foreign key information about the bean that contains this object

#### Returns

ejbObject remote interface of the containing bean

### get__mapKey() Method

    public Object get__mapKey()

get map key

#### Returns

the mak key

### get__sequenceNumber() Method

    public Long get__sequenceNumber()

Get the sequencer number

### set__containingBelonging(Belonging) Method

    public void set__containingBelonging(Belonging belonging)

Provides foreign key information about the bean that contains this object

#### Parameters

belonging
  remote interface of the containing bean

### set__containingEntity(EJBObject) Method

    public void set__containingEntity(EJBObject containingEntity)

Provides foreign key information about the bean that contains this object

#### Parameters

containingEntity
  remote interface of the containing bean

### set__mapKey(Object) Method

    public void set__mapKey(Object mapKey)

Provides map key information

#### Parameters

mapKey
  the key if this object is used in a map