本文整理匯總了Java中javax.persistence.ManyToOne.fetch方法的典型用法代碼示例。如果您正苦於以下問題：Java ManyToOne.fetch方法的具體用法？Java ManyToOne.fetch怎麽用？Java ManyToOne.fetch使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類javax.persistence.ManyToOne的用法示例。
在下文中一共展示了ManyToOne.fetch方法的1個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Java代碼示例。
示例1: defineFetchingStrategy
import javax.persistence.ManyToOne; //導入方法依賴的package包/類
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 ) );
}
}