MapAttribute (Java EE 8)

Type Parameters:

X - The type the represented Map belongs to

K - The type of the key of the represented Map

V - The type of the value of the represented Map

All Superinterfaces:

Attribute<X,K>, Bindable<X>, PluralAttribute<X,java.util.Map<K,V>,V>
```
public interface MapAttribute<X,K,V>
extends PluralAttribute<X,java.util.Map<K,V>,V>
```
Instances of the type MapAttribute represent persistent java.util.Map-valued attributes.

Since:

Java Persistence 2.0

Nested Class Summary
- Nested classes/interfaces inherited from interface javax.persistence.metamodel.Attribute
  Attribute.PersistentAttributeType
- Nested classes/interfaces inherited from interface javax.persistence.metamodel.Bindable
  Bindable.BindableType
- Nested classes/interfaces inherited from interface javax.persistence.metamodel.PluralAttribute
  PluralAttribute.CollectionType

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`java.lang.Class<K>`	`getKeyJavaType()`	Return the Java type of the map key.
`Type<K>`	`getKeyType()`	Return the type representing the key type of the map.

Methods inherited from interface javax.persistence.metamodel.Attribute
getDeclaringType, getJavaMember, getJavaType, getName, getPersistentAttributeType, isAssociation, isCollection

Methods inherited from interface javax.persistence.metamodel.Bindable
getBindableJavaType, getBindableType

Methods inherited from interface javax.persistence.metamodel.PluralAttribute
getCollectionType, getElementType

- Method Detail
  - getKeyJavaType
```
java.lang.Class<K> getKeyJavaType()
```
    Return the Java type of the map key.
    
    Returns:
    
    Java key type
  - getKeyType
```
Type<K> getKeyType()
```
    Return the type representing the key type of the map.
    
    Returns:
    
    type representing key type