org.springframework.data.util

Class BeanLookup

java.lang.Object

org.springframework.data.util.BeanLookup

public abstract class BeanLookup
extends Object

Simple helper to allow lenient lookup of beans of a given type from a ListableBeanFactory. This is not user facing API but a mere helper for Spring Data configuration code.

Since:

2.1

Author:

Oliver Gierke

Method Summary

Modifier and Type	Method and Description
static <T> Lazy<T>	lazyIfAvailable(Class<T> type, BeanFactory beanFactory) Returns a Lazy for the unique bean of the given type from the given BeanFactory (which needs to be a ListableBeanFactory).

Methods inherited from class java.lang.Object

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

Method Detail

lazyIfAvailable

public static <T> Lazy<T> lazyIfAvailable(Class<T> type,
                                          BeanFactory beanFactory)

Returns a Lazy for the unique bean of the given type from the given BeanFactory (which needs to be a ListableBeanFactory). The lookup will produce a NoUniqueBeanDefinitionException in case multiple beans of the given type are available in the given BeanFactory.

Parameters:

type - must not be null.

beanFactory - the BeanFactory to lookup the bean from.

Returns:

a Lazy for the unique bean of the given type or the instance provided by the fallback in case no bean of the given type can be found.