import javax.persistence.MapKeyEnumerated; //导入依赖的package包/类
/**
 * Adds a @MapKeyEnumerated annotation to the specified annotationList if the specified element
 * contains a map-key-enumerated sub-element. This should only be the case for
 * element-collection, many-to-many, or one-to-many associations.
 */
private void getMapKeyEnumerated(List<Annotation> annotationList, Element element) {
	Element subelement = element != null ? element.element( "map-key-enumerated" ) : null;
	if ( subelement != null ) {
		AnnotationDescriptor ad = new AnnotationDescriptor( MapKeyEnumerated.class );
		EnumType value = EnumType.valueOf( subelement.getTextTrim() );
		ad.setValue( "value", value );
		annotationList.add( AnnotationFactory.create( ad ) );
	}
}
 

import javax.persistence.MapKeyEnumerated; //导入依赖的package包/类
public void prepare(XProperty collectionProperty) {
	// fugly
	if ( prepared ) {
		return;
	}

	if ( collectionProperty == null ) {
		return;
	}

	prepared = true;

	if ( collection.isMap() ) {
		if ( collectionProperty.isAnnotationPresent( MapKeyEnumerated.class ) ) {
			canKeyBeConverted = false;
		}
		else if ( collectionProperty.isAnnotationPresent( MapKeyTemporal.class ) ) {
			canKeyBeConverted = false;
		}
		else if ( collectionProperty.isAnnotationPresent( MapKeyClass.class ) ) {
			canKeyBeConverted = false;
		}
		else if ( collectionProperty.isAnnotationPresent( MapKeyType.class ) ) {
			canKeyBeConverted = false;
		}
	}
	else {
		canKeyBeConverted = false;
	}

	if ( collectionProperty.isAnnotationPresent( ManyToAny.class ) ) {
		canElementBeConverted = false;
	}
	else if ( collectionProperty.isAnnotationPresent( OneToMany.class ) ) {
		canElementBeConverted = false;
	}
	else if ( collectionProperty.isAnnotationPresent( ManyToMany.class ) ) {
		canElementBeConverted = false;
	}
	else if ( collectionProperty.isAnnotationPresent( Enumerated.class ) ) {
		canElementBeConverted = false;
	}
	else if ( collectionProperty.isAnnotationPresent( Temporal.class ) ) {
		canElementBeConverted = false;
	}
	else if ( collectionProperty.isAnnotationPresent( CollectionType.class ) ) {
		canElementBeConverted = false;
	}

	// Is it valid to reference a collection attribute in a @Convert attached to the owner (entity) by path?
	// if so we should pass in 'clazzToProcess' also
	if ( canKeyBeConverted || canElementBeConverted ) {
		buildAttributeConversionInfoMaps( collectionProperty, elementAttributeConversionInfoMap, keyAttributeConversionInfoMap );
	}
}