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Interface IdentifierLoadAccess<T>

All Known Implementing Classes:: IdentifierLoadAccessImpl

public interfaceIdentifierLoadAccess<T>

Loads an entity by its primary identifier.

The interface is especially useful when customizing association fetching using anEntityGraph.

 var graph = session.createEntityGraph(Book.class); graph.addSubgraph(Book_.publisher); graph.addPluralSubgraph(Book_.authors)     .addSubgraph(Author_.person); Book book =         session.byId(Book.class)             .withFetchGraph(graph)             .load(bookId);

It's also useful for loading entity instances with a specificcache interaction mode in effect, or inread-only mode.

 Book book =         session.byId(Book.class)             .with(CacheMode.GET)             .withReadOnly(true)             .load(bookId);

See Also:: Session.byId(Class)

Method Summary

All Methods Instance Methods Abstract Methods Default Methods Deprecated Methods
Modifier and Type	Method	Description
`IdentifierLoadAccess<T>`	`disableFetchProfile(String profileName)`	Customize the associations fetched by specifying afetch profile that should be disabled during this operation.
`IdentifierLoadAccess<T>`	`enableFetchProfile(String profileName)`	Customize the associations fetched by specifying afetch profile that should be enabled during this operation.
`T`	`getReference(Object id)`	Return the persistent instance with the given identifier, assuming that the instance exists.
`T`	`load(Object id)`	Return the persistent instance with the given identifier, or null if there is no such persistent instance.
`Optional<T>`	`loadOptional(Object id)`	Just like`load(java.lang.Object)`, except that here an`Optional` is returned.
`IdentifierLoadAccess<T>`	`with(CacheMode cacheMode)`	Specify the`CacheMode` to use when obtaining an entity.
`defaultIdentifierLoadAccess<T>`	`with(RootGraph<T> graph)`	Deprecated. use`withLoadGraph(org.hibernate.graph.RootGraph<T>)`
`IdentifierLoadAccess<T>`	`with(RootGraph<T> graph,GraphSemantic semantic)`	Customize the associations fetched by specifying anentity graph, and how it should beinterpreted.
`IdentifierLoadAccess<T>`	`with(LockOptions lockOptions)`	Specify thelock options to use when querying the database.
`defaultIdentifierLoadAccess<T>`	`withFetchGraph(RootGraph<T> graph)`	Override the associations fetched by default by specifying the complete list of associations to be fetched as anentity graph.
`defaultIdentifierLoadAccess<T>`	`withLoadGraph(RootGraph<T> graph)`	Augment the associations fetched by default by specifying a list of additional associations to be fetched as anentity graph.
`IdentifierLoadAccess<T>`	`withReadOnly(boolean readOnly)`	Specify whether the entity should be loaded in read-only mode.

- Method Detail
  - with
```
IdentifierLoadAccess<T> with(LockOptions lockOptions)
```
    Specify thelock options to use when querying the database.
    Parameters:
    lockOptions - The lock options to use
    Returns:
    this, for method chaining
  - with
```
IdentifierLoadAccess<T> with(CacheMode cacheMode)
```
    Specify theCacheMode to use when obtaining an entity.
    Parameters:
    cacheMode - TheCacheMode to use
    Returns:
    this, for method chaining
  - withReadOnly
```
IdentifierLoadAccess<T> withReadOnly(boolean readOnly)
```
    Specify whether the entity should be loaded in read-only mode.
    See Also:
    Session.setDefaultReadOnly(boolean)
  - withFetchGraph
```
default IdentifierLoadAccess<T> withFetchGraph(RootGraph<T> graph)
```
    Override the associations fetched by default by specifying the complete list of associations to be fetched as anentity graph.
    Since:
    6.3
  - withLoadGraph
```
default IdentifierLoadAccess<T> withLoadGraph(RootGraph<T> graph)
```
    Augment the associations fetched by default by specifying a list of additional associations to be fetched as anentity graph.
    Since:
    6.3
  - with
```
@Deprecated(since="6.3")default IdentifierLoadAccess<T> with(RootGraph<T> graph)
```
    Deprecated.
    usewithLoadGraph(org.hibernate.graph.RootGraph<T>)
  - with
```
IdentifierLoadAccess<T> with(RootGraph<T> graph,GraphSemantic semantic)
```
    Customize the associations fetched by specifying anentity graph, and how it should beinterpreted.
  - enableFetchProfile
```
IdentifierLoadAccess<T> enableFetchProfile(String profileName)
```
    Customize the associations fetched by specifying afetch profile that should be enabled during this operation.
    This allows thesession-level fetch profiles to be temporarily overridden.
    Since:
    6.3
  - disableFetchProfile
```
IdentifierLoadAccess<T> disableFetchProfile(String profileName)
```
    Customize the associations fetched by specifying afetch profile that should be disabled during this operation.
    This allows thesession-level fetch profiles to be temporarily overridden.
    Since:
    6.3
  - getReference
```
T getReference(Object id)
```
    Return the persistent instance with the given identifier, assuming that the instance exists. This method might return a proxied instance that is initialized on-demand, when a non-identifier method is accessed.
    You should not use this method to determine if an instance exists; to check for existence, useload(java.lang.Object) instead. Use this only to retrieve an instance that you assume exists, where non-existence would be an actual error.
    Parameters:
    id - The identifier for which to obtain a reference
    Returns:
    the persistent instance or proxy
  - load
```
T load(Object id)
```
    Return the persistent instance with the given identifier, or null if there is no such persistent instance. If the instance is already associated with the session, return that instance, initializing it if needed. This method never returns an uninitialized instance.
    Parameters:
    id - The identifier
    Returns:
    The persistent instance ornull
  - loadOptional
```
Optional<T> loadOptional(Object id)
```
    Just likeload(java.lang.Object), except that here anOptional is returned.
    Parameters:
    id - The identifier
    Returns:
    The persistent instance, if any, as anOptional

Movatterモバイル変換

Interface IdentifierLoadAccess<T>

Method Summary

Method Detail

with

with

withReadOnly

withFetchGraph

withLoadGraph

with

with

enableFetchProfile

disableFetchProfile

getReference

load

loadOptional