org.springframework.context.annotation

Interface Condition

All Known Subinterfaces:

ConfigurationCondition

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface Condition

A single condition that must be matched in order for a component to be registered.

Conditions are checked immediately before the bean-definition is due to be registered and are free to veto registration based on any criteria that can be determined at that point.

Conditions must follow the same restrictions as BeanFactoryPostProcessor and take care to never interact with bean instances. For more fine-grained control of conditions that interact with @Configuration beans consider the ConfigurationCondition interface.

Since:

4.0

Author:

Phillip Webb

See Also:

ConfigurationCondition, Conditional, ConditionContext

Method Summary

Modifier and Type	Method and Description
boolean	matches(ConditionContext context, org.springframework.core.type.AnnotatedTypeMetadata metadata) Determine if the condition matches.

Method Detail

matches

boolean matches(ConditionContext context,
                org.springframework.core.type.AnnotatedTypeMetadata metadata)

Determine if the condition matches.

Parameters:

context - the condition context

metadata - the metadata of the class or method being checked

Returns:

true if the condition matches and the component can be registered, or false to veto the annotated component's registration