org.springframework.context.annotation

类 AdviceModeImportSelector<A extends Annotation>

java.lang.Object

org.springframework.context.annotation.AdviceModeImportSelector<A>

类型参数:

A - annotation containing AdviceMode attribute

所有已实现的接口:

ImportSelector

直接已知子类:

AsyncConfigurationSelector, CachingConfigurationSelector

public abstract class AdviceModeImportSelector<A extends Annotation>
extends Object
implements ImportSelector

Convenient base class for ImportSelector implementations that select imports based on an AdviceMode value from an annotation (such as the @Enable* annotations).

从以下版本开始:

3.1

作者:

Chris Beams

字段概要

字段

限定符和类型	字段和说明
static String	DEFAULT_ADVICE_MODE_ATTRIBUTE_NAME The default advice mode attribute name.

构造器概要

构造器

构造器和说明
AdviceModeImportSelector()

方法概要

限定符和类型	方法和说明
protected String	getAdviceModeAttributeName() The name of the AdviceMode attribute for the annotation specified by the generic type A.
protected abstract String[]	selectImports(AdviceMode adviceMode) Determine which classes should be imported based on the given AdviceMode.
String[]	selectImports(org.springframework.core.type.AnnotationMetadata importingClassMetadata) This implementation resolves the type of annotation from generic metadata and validates that (a) the annotation is in fact present on the importing @Configuration class and (b) that the given annotation has an advice mode attribute of type AdviceMode.

从类继承的方法 java.lang.Object

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

字段详细资料

DEFAULT_ADVICE_MODE_ATTRIBUTE_NAME

public static final String DEFAULT_ADVICE_MODE_ATTRIBUTE_NAME

The default advice mode attribute name.

另请参阅:

常量字段值

构造器详细资料

AdviceModeImportSelector

public AdviceModeImportSelector()

方法详细资料

getAdviceModeAttributeName

protected String getAdviceModeAttributeName()

The name of the AdviceMode attribute for the annotation specified by the generic type A. The default is "mode", but subclasses may override in order to customize.

selectImports

public final String[] selectImports(org.springframework.core.type.AnnotationMetadata importingClassMetadata)

This implementation resolves the type of annotation from generic metadata and validates that (a) the annotation is in fact present on the importing @Configuration class and (b) that the given annotation has an advice mode attribute of type AdviceMode.

The selectImports(AdviceMode) method is then invoked, allowing the concrete implementation to choose imports in a safe and convenient fashion.

指定者:

selectImports 在接口中 ImportSelector

抛出:

IllegalArgumentException - if expected annotation A is not present on the importing @Configuration class or if selectImports(AdviceMode) returns null

selectImports

@Nullable
protected abstract String[] selectImports(AdviceMode adviceMode)

Determine which classes should be imported based on the given AdviceMode.

Returning null from this method indicates that the AdviceMode could not be handled or was unknown and that an IllegalArgumentException should be thrown.

参数:

adviceMode - the value of the advice mode attribute for the annotation specified via generics.

返回:

array containing classes to import (empty array if none; null if the given AdviceMode is unknown)