Package com.googlecode.objectify.impl.translate

Class TypeKey<T>

java.lang.Object

com.googlecode.objectify.impl.translate.TypeKey<T>

public class TypeKey<T>
extends Object

Unique identifier for a translator instance. Important so we can re-use translators as we navigate the tree, allowing us to store recursive structures.

Author:

Jeff Schnitzer

Constructor Summary

Constructors

Constructor	Description
TypeKey(Property prop)	Create a typekey from a property
TypeKey(Type type)
TypeKey(Type type, TypeKey previous)	Create a new typekey for a new type but which preserves characteristics of the old typekey (ie annotations).

Method Summary

Modifier and Type	Method	Description
<A extends Annotation> A	getAnnotation(Class<A> annotationType)	Gets the annotation that has the specified type, or null if there isn't one
<A extends Annotation> A	getAnnotationAnywhere(Class<A> annotationType)	Checks not only the listed annotations but also annotations on the class.
Class<T>	getTypeAsClass()	Get the basic class through erasure.
boolean	isAnnotationPresent(Class<? extends Annotation> annotationType)
boolean	isAssignableTo(Class<?> superclass)	Can this type be assigned to a variable with the specified type?

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

TypeKey

public TypeKey(Type type)

TypeKey

public TypeKey(Type type,
 TypeKey previous)

Create a new typekey for a new type but which preserves characteristics of the old typekey (ie annotations). This is used when creating a new typekey for component types.

TypeKey

public TypeKey(Property prop)

Create a typekey from a property

Method Details

getTypeAsClass

public Class<T> getTypeAsClass()

Get the basic class through erasure.

getAnnotation

public <A extends Annotation> A getAnnotation(Class<A> annotationType)

Gets the annotation that has the specified type, or null if there isn't one

isAnnotationPresent

public boolean isAnnotationPresent(Class<? extends Annotation> annotationType)

Returns:

true if the annotation is present

getAnnotationAnywhere

public <A extends Annotation> A getAnnotationAnywhere(Class<A> annotationType)

Checks not only the listed annotations but also annotations on the class.

isAssignableTo

public boolean isAssignableTo(Class<?> superclass)

Can this type be assigned to a variable with the specified type?