Package org.apache.cayenne.di

Class Key<T>

java.lang.Object

org.apache.cayenne.di.Key<T>

public class Key<T>
extends Object

An object that encapsulates a key used to store and lookup DI bindings. Key is made of a binding type and an optional binding name.

Since:

3.1

Field Summary

Fields

Modifier and Type	Field	Description
protected String	bindingName
protected org.apache.cayenne.di.TypeLiteral<T>	typeLiteral

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	Key(org.apache.cayenne.di.TypeLiteral<T> type, String bindingName)

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object object)
static <T> Key<T>	get(Class<T> type)	Creates a key for a nameless binding of a given type.
static <T> Key<T>	get(Class<T> type, String bindingName)	Creates a key for a named binding of a given type.
String	getBindingName()	Returns an optional name of the binding used to distinguish multiple bindings of the same object type.
static <T> Key<List<T>>	getListOf(Class<T> type)
static <T> Key<List<T>>	getListOf(Class<T> type, String bindingName)
static <K, V> Key<Map<K,V>>	getMapOf(Class<K> keyType, Class<V> valueType)
static <K, V> Key<Map<K,V>>	getMapOf(Class<K> keyType, Class<V> valueType, String bindingName)
Class<T>	getType()
int	hashCode()
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Details

typeLiteral

protected org.apache.cayenne.di.TypeLiteral<T> typeLiteral

Since:

4.0

bindingName

protected String bindingName

Constructor Details

Key

protected Key(org.apache.cayenne.di.TypeLiteral<T> type,
 String bindingName)

Method Details

get

public static <T> Key<T> get(Class<T> type)

Creates a key for a nameless binding of a given type.

get

public static <T> Key<T> get(Class<T> type,
 String bindingName)

Creates a key for a named binding of a given type. 'bindingName' that is an empty String is treated the same way as a null 'bindingName'. In both cases a nameless binding key is created.

getListOf

public static <T> Key<List<T>> getListOf(Class<T> type)

Since:

4.0

getListOf

public static <T> Key<List<T>> getListOf(Class<T> type,
 String bindingName)

Since:

4.0

getMapOf

public static <K,
V> Key<Map<K,V>> getMapOf(Class<K> keyType,
 Class<V> valueType)

Since:

4.0

getMapOf

public static <K,
V> Key<Map<K,V>> getMapOf(Class<K> keyType,
 Class<V> valueType,
 String bindingName)

Since:

4.0

getType

public Class<T> getType()

getBindingName

public String getBindingName()

Returns an optional name of the binding used to distinguish multiple bindings of the same object type.

equals

public boolean equals(Object object)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object