DeadRef (Objectify App Engine 6.0.7 API)

java.lang.Object
- com.googlecode.objectify.Ref<T>
- - com.googlecode.objectify.impl.ref.DeadRef<T>

All Implemented Interfaces:

Serializable, Comparable<Ref<T>>
```
public class DeadRef<T>
extends Ref<T>
```
Implementation of Ref which is disconnected from the live system; for example, this will be used if a Ref gets serialized or deserialized.

Author:

Jeff Schnitzer

See Also:

Serialized Form

Field Summary
- Fields inherited from class com.googlecode.objectify.Ref
  key

Constructor Summary

Constructors
Modifier	Constructor	Description
`protected`	`DeadRef()`	For GWT serialization
	`DeadRef(Key<T> key)`	Create a Ref based on the key
	`DeadRef(Key<T> key, T value)`	Create a Ref based on the key and value

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`T`	`get()`	Obtain the entity value associated with the key.
`boolean`	`isLoaded()`	If an entity has been loaded into the session or is otherwise available, this will return true.

Methods inherited from class com.googlecode.objectify.Ref
compareTo, create, create, equals, equivalent, equivalent, getKey, getValue, hashCode, key, safe, toString

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - DeadRef
```
protected DeadRef()
```
    For GWT serialization
  - DeadRef
```
public DeadRef(Key<T> key)
```
    Create a Ref based on the key
  - DeadRef
```
public DeadRef(Key<T> key,
               T value)
```
    Create a Ref based on the key and value
- Method Detail
  - get
```
public T get()
```
    Description copied from class: Ref
    
    Obtain the entity value associated with the key. Will pull from session if present, otherwise will fetch from the datastore.
    
    Specified by:
    
    get in class Ref<T>
    
    Returns:
    
    the entity referenced, or null if the entity was not found
  - isLoaded
```
public boolean isLoaded()
```
    Description copied from class: Ref
    
    If an entity has been loaded into the session or is otherwise available, this will return true. Calls to get() will not require a trip to backing store. Note that even when loaded, get() can still return null if there is no entity which corresponds to the key.
    
    Specified by:
    
    isLoaded in class Ref<T>
    
    Returns:
    
    true if the value is in the session or otherwise immediately available; false if get() will require a trip to the datastore or memcache.