PersistentProperty (Spring Data Core 2.0.0.M2 API)

All Known Implementing Classes:

AbstractPersistentProperty, AnnotationBasedPersistentProperty
```
public interface PersistentProperty<P extends PersistentProperty<P>>
```
Author:

Graeme Rocher, Jon Brisbin, Oliver Gierke

Property Summary

All Methods Instance Methods Abstract Methods
Type	Property and Description
`boolean`	`isId` Gets the value of the property idProperty.
`boolean`	`isVersion` Gets the value of the property versionProperty.

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method and Description
`<A extends Annotation> Optional<A>`	`findAnnotation(Class<A> annotationType)` Looks up the annotation of the given type on the `PersistentProperty`.
`<A extends Annotation> Optional<A>`	`findPropertyOrOwnerAnnotation(Class<A> annotationType)` Looks up the annotation of the given type on the property and the owning type if no annotation can be found on it.
`Class<?>`	`getActualType()` Returns the actual type of the property.
`Optional<Association<P>>`	`getAssociation()`
`Optional<Class<?>>`	`getComponentType()` Returns the component type of the type if it is a `Collection`.
`Optional<Field>`	`getField()`
`Optional<Method>`	`getGetter()` Returns the getter method to access the property value if available.
`Optional<Class<?>>`	`getMapValueType()` Returns the type of the values if the property is a `Map`.
`String`	`getName()` The name of the property
`PersistentEntity<?,P>`	`getOwner()` Returns the `PersistentEntity` owning the current `PersistentProperty`.
`Iterable<? extends TypeInformation<?>>`	`getPersistentEntityType()` Returns the `TypeInformation` if the property references a `PersistentEntity`.
`Class<?>`	`getRawType()` Returns the raw type as it's pulled from from the reflected property.
`default Association<P>`	`getRequiredAssociation()`
`Optional<Method>`	`getSetter()` Returns the setter method to set a property value.
`Optional<String>`	`getSpelExpression()`
`Class<?>`	`getType()` The type of the property
`TypeInformation<?>`	`getTypeInformation()` Returns the `TypeInformation` of the property.
`boolean`	`isAnnotationPresent(Class<? extends Annotation> annotationType)` Returns whether the `PersistentProperty` has an annotation of the given type.
`boolean`	`isArray()` Returns whether the property is an array.
`boolean`	`isAssociation()` Returns whether the property is an `Association`.
`boolean`	`isCollectionLike()` Returns whether the property is a `Collection`, `Iterable` or an array.
`boolean`	`isEntity()` Returns whether the type of the `PersistentProperty` is actually to be regarded as `PersistentEntity` in turn.
`boolean`	`isIdProperty()` Gets the value of the property idProperty.
`boolean`	`isMap()` Returns whether the property is a `Map`.
`boolean`	`isTransient()` Returns whether the property is transient.
`boolean`	`isVersionProperty()` Gets the value of the property versionProperty.
`boolean`	`isWritable()` Returns whether the current property is writable, i.e. if the value held for it shall be written to the data store.
`boolean`	`usePropertyAccess()` Returns whether property access shall be used for reading the property value.

- Property Detail
  - isId
```
boolean isIdProperty
```
    Gets the value of the property idProperty.
  - isVersion
```
boolean isVersionProperty
```
    Gets the value of the property versionProperty.
- Method Detail
  - getOwner
```
PersistentEntity<?,P> getOwner()
```
    Returns the PersistentEntity owning the current PersistentProperty.
    
    Returns:
  - getName
```
String getName()
```
    The name of the property
    
    Returns:
    
    The property name
  - getType
```
Class<?> getType()
```
    The type of the property
    
    Returns:
    
    The property type
  - getTypeInformation
```
TypeInformation<?> getTypeInformation()
```
    Returns the TypeInformation of the property.
    
    Returns:
  - getPersistentEntityType
```
Iterable<? extends TypeInformation<?>> getPersistentEntityType()
```
    Returns the TypeInformation if the property references a PersistentEntity. Will return null in case it refers to a simple type. Will return Collection's component type or the Map's value type transparently.
    
    Returns:
  - getGetter
```
Optional<Method> getGetter()
```
    Returns the getter method to access the property value if available. Might return null in case there is no getter method with a return type assignable to the actual property's type.
    
    Returns:
    
    the getter method to access the property value if available, otherwise null.
  - getSetter
```
Optional<Method> getSetter()
```
    Returns the setter method to set a property value. Might return null in case there is no setter available.
    
    Returns:
    
    the setter method to set a property value if available, otherwise null.
  - getField
```
Optional<Field> getField()
```
  - getSpelExpression
```
Optional<String> getSpelExpression()
```
  - getAssociation
```
Optional<Association<P>> getAssociation()
```
  - getRequiredAssociation
```
default Association<P> getRequiredAssociation()
```
  - isEntity
```
boolean isEntity()
```
    Returns whether the type of the PersistentProperty is actually to be regarded as PersistentEntity in turn.
    
    Returns:
  - isIdProperty
```
boolean isIdProperty()
```
    Gets the value of the property idProperty.
  - isVersionProperty
```
boolean isVersionProperty()
```
    Gets the value of the property versionProperty.
  - isCollectionLike
```
boolean isCollectionLike()
```
    Returns whether the property is a Collection, Iterable or an array.
    
    Returns:
  - isMap
```
boolean isMap()
```
    Returns whether the property is a Map.
    
    Returns:
  - isArray
```
boolean isArray()
```
    Returns whether the property is an array.
    
    Returns:
  - isTransient
```
boolean isTransient()
```
    Returns whether the property is transient.
    
    Returns:
  - isWritable
```
boolean isWritable()
```
    Returns whether the current property is writable, i.e. if the value held for it shall be written to the data store.
    
    Returns:
    
    Since:
    
    1.9
  - isAssociation
```
boolean isAssociation()
```
    Returns whether the property is an Association.
    
    Returns:
  - getComponentType
```
Optional<Class<?>> getComponentType()
```
    Returns the component type of the type if it is a Collection. Will return the type of the key if the property is a Map.
    
    Returns:
    
    the component type, the map's key type or Optional.empty() if neither Collection nor Map.
  - getRawType
```
Class<?> getRawType()
```
    Returns the raw type as it's pulled from from the reflected property.
    
    Returns:
    
    the raw type of the property.
  - getMapValueType
```
Optional<Class<?>> getMapValueType()
```
    Returns the type of the values if the property is a Map.
    
    Returns:
    
    the map's value type or Optional.empty() if no Map
  - getActualType
```
Class<?> getActualType()
```
    Returns the actual type of the property. This will be the original property type if no generics were used, the component type for collection-like types and arrays as well as the value type for map properties.
    
    Returns:
  - findAnnotation
```
<A extends Annotation> Optional<A> findAnnotation(Class<A> annotationType)
```
    Looks up the annotation of the given type on the PersistentProperty. Will inspect accessors and the potentially backing field and traverse accessor methods to potentially available super types.
    
    Parameters:
    
    annotationType - the annotation to look up, must not be null.
    
    Returns:
    
    the annotation of the given type.
    
    See Also:
    
    AnnotationUtils.findAnnotation(Method, Class)
  - findPropertyOrOwnerAnnotation
```
<A extends Annotation> Optional<A> findPropertyOrOwnerAnnotation(Class<A> annotationType)
```
    Looks up the annotation of the given type on the property and the owning type if no annotation can be found on it. Usefull to lookup annotations that can be configured on the type but overridden on an individual property.
    
    Parameters:
    
    annotationType - must not be null.
    
    Returns:
  - isAnnotationPresent
```
boolean isAnnotationPresent(Class<? extends Annotation> annotationType)
```
    Returns whether the PersistentProperty has an annotation of the given type.
    
    Parameters:
    
    annotationType - the annotation to lookup, must not be null.
    
    Returns:
    
    whether the PersistentProperty has an annotation of the given type.
  - usePropertyAccess
```
boolean usePropertyAccess()
```
    Returns whether property access shall be used for reading the property value. This means it will use the getter instead of field access.
    
    Returns:

Interface PersistentProperty<P extends PersistentProperty<P>>

Property Summary

Method Summary

Property Detail

isId

isVersion

Method Detail

getOwner

getName

getType

getTypeInformation

getPersistentEntityType

getGetter

getSetter

getField

getSpelExpression

getAssociation

getRequiredAssociation

isEntity

isIdProperty

isVersionProperty

isCollectionLike

isMap

isArray

isTransient

isWritable

isAssociation

getComponentType

getRawType

getMapValueType

getActualType

findAnnotation

findPropertyOrOwnerAnnotation

isAnnotationPresent

usePropertyAccess