FetchSource (hibernate-jdk11 5.4.12.Final API)

所有已知子接口:

AnyAttributeFetch, BidirectionalEntityReference, CollectionFetchableElement, CollectionFetchableIndex, CompositeAttributeFetch, CompositeFetch, EntityFetch, EntityReference, EntityReturn, ExpandingEntityIdentifierDescription, ExpandingFetchSource

所有已知实现类:

AbstractAnyReference, AbstractCompositeEntityIdentifierDescription, AbstractCompositeFetch, AbstractCompositeReference, AbstractEntityReference, AbstractExpandingFetchSource, AnyAttributeFetchImpl, BidirectionalEntityReferenceImpl, CollectionFetchableElementAnyGraph, CollectionFetchableElementCompositeGraph, CollectionFetchableElementEntityGraph, CollectionFetchableIndexAnyGraph, CollectionFetchableIndexCompositeGraph, CollectionFetchableIndexEntityGraph, CompositeAttributeFetchImpl, EncapsulatedEntityIdentifierDescription, EntityAttributeFetchImpl, EntityReturnImpl, NestedCompositeAttributeFetchImpl, NonEncapsulatedEntityIdentifierDescription
```
public interface FetchSource
```
Contract for a FetchSource (aka, the thing that owns the fetched attribute).

作者:

Steve Ebersole

方法概要

所有方法实例方法抽象方法
修饰符和类型	方法	说明
`BidirectionalEntityReference[]`	`getBidirectionalEntityReferences()`	Retrieve the bidirectional entity references owned by this fetch source.
`Fetch[]`	`getFetches()`	Retrieve the fetches owned by this fetch source.
`PropertyPath`	`getPropertyPath()`	Get the property path to this fetch source
`String`	`getQuerySpaceUid()`	Get the UID for this fetch source's query space.
`EntityReference`	`resolveEntityReference()`	Resolve the "current" `EntityReference`, or null if none.

- 方法详细资料
  - getPropertyPath
```
PropertyPath getPropertyPath()
```
    Get the property path to this fetch source
    
    返回:
    
    The property path
  - getQuerySpaceUid
```
String getQuerySpaceUid()
```
    Get the UID for this fetch source's query space.
    
    返回:
    
    The query space UID.
  - getFetches
```
Fetch[] getFetches()
```
    Retrieve the fetches owned by this fetch source.
    
    返回:
    
    The owned fetches.
  - getBidirectionalEntityReferences
```
BidirectionalEntityReference[] getBidirectionalEntityReferences()
```
    Retrieve the bidirectional entity references owned by this fetch source.
    
    返回:
    
    The owned bidirectional entity references.
  - resolveEntityReference
```
EntityReference resolveEntityReference()
```
    Resolve the "current" EntityReference, or null if none. If this object is an EntityReference, then this object is returned; otherwise, if this object is a Fetch, then the nearest EntityReference will be resolved from its source, if possible. If no EntityReference can be resolved, null is return.
    
    返回:
    
    the "current" EntityReference or null if none. .