io.micronaut.inject.qualifiers

Class TypeArgumentQualifier<T>

java.lang.Object

io.micronaut.inject.qualifiers.TypeArgumentQualifier<T>

Type Parameters:

T - The type

All Implemented Interfaces:

Qualifier<T>

Direct Known Subclasses:

ClosestTypeArgumentQualifier

@Internal
public class TypeArgumentQualifier<T>
extends Object
implements Qualifier<T>

A Qualifier that qualifies beans by generic type arguments.

Since:

1.0

Author:

Graeme Rocher

Field Summary

Fields inherited from interface io.micronaut.context.Qualifier

PRIMARY

Method Summary

Modifier and Type	Method and Description
static boolean	areTypesCompatible(Class[] typeArguments, List<Class> classes) Are the given types compatible.
protected boolean	areTypesCompatible(List<Class> classes)
boolean	equals(Object o)
Class[]	getTypeArguments()
protected <BT extends BeanType<T>> List<Class>	getTypeArguments(Class<T> beanType, BT candidate)
int	hashCode()
<BT extends BeanType<T>> Stream<BT>	reduce(Class<T> beanType, Stream<BT> candidates)
String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.micronaut.context.Qualifier

contains, qualify

Method Detail

reduce

public <BT extends BeanType<T>> Stream<BT> reduce(Class<T> beanType,
                                                  Stream<BT> candidates)

Specified by:

reduce in interface Qualifier<T>

Type Parameters:

BT - The bean type subclass

Parameters:

beanType - The bean type

candidates - The candidates

Returns:

The qualified candidate or null it it cannot be qualified

getTypeArguments

public Class[] getTypeArguments()

Returns:

The type arguments

areTypesCompatible

protected boolean areTypesCompatible(List<Class> classes)

Parameters:

classes - An array of classes

Returns:

Whether the types are compatible

getTypeArguments

protected <BT extends BeanType<T>> List<Class> getTypeArguments(Class<T> beanType,
                                                                BT candidate)

Type Parameters:

BT - The bean type subclass

Parameters:

beanType - The bean type

candidate - The candidate

Returns:

The list of type arguments

areTypesCompatible

public static boolean areTypesCompatible(Class[] typeArguments,
                                         List<Class> classes)

Are the given types compatible.

Parameters:

typeArguments - The type arguments

classes - The classes to check for alignments

Returns:

True if they are

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object