PluralAttributeMapKeySource (Hibernate JavaDocs)

All Superinterfaces:

PluralAttributeIndexSource

All Known Subinterfaces:

PluralAttributeMapKeyManyToAnySource, PluralAttributeMapKeyManyToManySource
```
public interface PluralAttributeMapKeySource
extends PluralAttributeIndexSource
```
Describes source information about the key of a persistent map. At high level this broken down further into 2 categories:
- PluralAttributeMapKeySourceEntityAttribute
PluralAttributeMapKeySourceEntityAttribute is only relevant from annotations when using MapKey.

Nested Class Summary

Nested Classes
Modifier and Type Interface Description

static class PluralAttributeMapKeySource.Nature

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`PluralAttributeMapKeySource.Nature`	`getMapKeyNature()`
`boolean`	`isReferencedEntityAttribute()`	Is this plural attribute index source for an attribute of the referenced entity (relevant only for one-to-many and many-to-many associations)? If this method returns `true`, then this object can safely be cast to `PluralAttributeMapKeySourceEntityAttribute`.

Methods inherited from interface org.hibernate.boot.model.source.spi.PluralAttributeIndexSource
getNature, getTypeInformation, getXmlNodeName

- Method Detail
  - getMapKeyNature
```
PluralAttributeMapKeySource.Nature getMapKeyNature()
```
  - isReferencedEntityAttribute
```
boolean isReferencedEntityAttribute()
```
    Is this plural attribute index source for an attribute of the referenced entity (relevant only for one-to-many and many-to-many associations)? If this method returns true, then this object can safely be cast to PluralAttributeMapKeySourceEntityAttribute.
    
    Returns:
    
    true, if this plural attribute index source for an attribute of the referenced entity; false, otherwise.