import org.hibernate.annotations.LazyToOne; //导入依赖的package包/类
/**
 * @return the abstractBioMaterial
 */
@ManyToOne
@LazyToOne(LazyToOneOption.PROXY)
@ForeignKey(name = "characteristic_biomaterial_fk")
public AbstractBioMaterial getBioMaterial() {
    return bioMaterial;
}
 

import org.hibernate.annotations.LazyToOne; //导入依赖的package包/类
@OneToOne(fetch = FetchType.LAZY)
   @JoinColumn(name = "id",nullable=false)
   @LazyToOne(value = LazyToOneOption.NO_PROXY)
public Permission getPermission() {
	return permission;
}
 

import org.hibernate.annotations.LazyToOne; //导入依赖的package包/类
protected static void defineFetchingStrategy(ToOne toOne, XProperty property) {
	LazyToOne lazy = property.getAnnotation( LazyToOne.class );
	Fetch fetch = property.getAnnotation( Fetch.class );
	ManyToOne manyToOne = property.getAnnotation( ManyToOne.class );
	OneToOne oneToOne = property.getAnnotation( OneToOne.class );
	FetchType fetchType;
	if ( manyToOne != null ) {
		fetchType = manyToOne.fetch();
	}
	else if ( oneToOne != null ) {
		fetchType = oneToOne.fetch();
	}
	else {
		throw new AssertionFailure(
				"Define fetch strategy on a property not annotated with @OneToMany nor @OneToOne"
		);
	}
	if ( lazy != null ) {
		toOne.setLazy( !( lazy.value() == LazyToOneOption.FALSE ) );
		toOne.setUnwrapProxy( ( lazy.value() == LazyToOneOption.NO_PROXY ) );
	}
	else {
		toOne.setLazy( fetchType == FetchType.LAZY );
		toOne.setUnwrapProxy( false );
	}
	if ( fetch != null ) {
		if ( fetch.value() == org.hibernate.annotations.FetchMode.JOIN ) {
			toOne.setFetchMode( FetchMode.JOIN );
			toOne.setLazy( false );
			toOne.setUnwrapProxy( false );
		}
		else if ( fetch.value() == org.hibernate.annotations.FetchMode.SELECT ) {
			toOne.setFetchMode( FetchMode.SELECT );
		}
		else if ( fetch.value() == org.hibernate.annotations.FetchMode.SUBSELECT ) {
			throw new AnnotationException( "Use of FetchMode.SUBSELECT not allowed on ToOne associations" );
		}
		else {
			throw new AssertionFailure( "Unknown FetchMode: " + fetch.value() );
		}
	}
	else {
		toOne.setFetchMode( getFetchMode( fetchType ) );
	}
}