Java MapsId类代码示例

import javax.persistence.MapsId; //导入依赖的package包/类
/**
 * Resolves the column for the {@code id property} of this entity class.
 *
 * @param attribute
 *            the referencing attribute (for evaluating annotations)
 *
 * @return the column name
 * @throws IllegalStateException
 *             if the id property is not singular and no MapsId is given
 */
GeneratorColumn getIdColumn(final AttributeAccessor attribute) {
	if (this.idProperty instanceof SingularProperty) {
		return ((SingularProperty<?, ?>) this.idProperty).getColumn();
	}
	if (this.idProperty instanceof EmbeddedProperty) {
		final MapsId mapsId = attribute.getAnnotation(MapsId.class);
		if (mapsId != null && mapsId.value().length() > 0) {
			final Property<?, ?> property = ((EmbeddedProperty<E, ?>) this.idProperty).getEmbeddedProperties()
					.get(mapsId.value());
			if (property instanceof SingularProperty) {
				return ((SingularProperty<?, ?>) this.idProperty).getColumn();
			}
		}
		throw new ModelException(attribute + " misses MapId for a singular property in " + this.entityClass);
	}
	if (this.idProperty == null && this.parentEntityClass != null) {
		// It seems we are still building the hierarchy
		this.idProperty = this.context.getDescription(this.parentEntityClass).getIdProperty();
		if (this.idProperty != null) {
			return getIdColumn(attribute);
		}
	}

	throw new ModelException(attribute + " does not reference an ID column in " + this.entityClass);
}
 

import javax.persistence.MapsId; //导入依赖的package包/类
public void addPropertyAnnotatedWithMapsId(XClass entityType, PropertyData property) {
	Map<String, PropertyData> map = propertiesAnnotatedWithMapsId.get( entityType );
	if ( map == null ) {
		map = new HashMap<String, PropertyData>();
		propertiesAnnotatedWithMapsId.put( entityType, map );
	}
	map.put( property.getProperty().getAnnotation( MapsId.class ).value(), property );
}
 

import javax.persistence.MapsId; //导入依赖的package包/类
/**
 * Adds a @MapsId annotation to the specified annotationList if the specified element has the
 * maps-id attribute set. This should only be the case for many-to-one or one-to-one
 * associations.
 */
private void getMapsId(List<Annotation> annotationList, Element element) {
	String attrVal = element.attributeValue( "maps-id" );
	if ( attrVal != null ) {
		AnnotationDescriptor ad = new AnnotationDescriptor( MapsId.class );
		ad.setValue( "value", attrVal );
		annotationList.add( AnnotationFactory.create( ad ) );
	}
}
 

import javax.persistence.MapsId; //导入依赖的package包/类
@ForeignKey(name = "none")
@MapsId("record")
@ManyToOne(fetch = FetchType.LAZY)
@JoinColumns({
        @JoinColumn(name = COLUMN_RECORD_ID, referencedColumnName = "id")
})
public RAuditEventRecord getRecord() {
    return record;
}
 

import javax.persistence.MapsId; //导入依赖的package包/类
/**
 * Creates a new instance of {@link EntityProperty}.
 *
 * @param context
 *            the generator context.
 * @param containerTable
 *            the table that contains our column
 * @param attribute
 *            the accessor of the attribute
 * @param override
 *            optional {@link AttributeOverride} configuration.
 */
public EntityProperty(final GeneratorContext context, final GeneratorTable containerTable,
		final AttributeAccessor attribute, @Nullable final AssociationOverride override) {
	super(attribute);
	this.context = context;

	// Initialize the target class description
	this.targetClass = context.getDescription((Class<T>) attribute.getType());

	// Initialize according to the *ToOne annotations
	final MappingInformation mapping = new MappingInformation(attribute);
	this.required = !mapping.isOptional();
	this.mappedBy = mapping.getMappedBy().length() == 0 ? null : mapping.getMappedBy();
	final MapsId mapsId = attribute.getAnnotation(MapsId.class);
	this.idField = mapsId != null ? mapsId.value() : null;

	// Initialize the column name
	if (this.mappedBy == null) {
		final JoinColumn joinColumn = override != null && override.joinColumns().length > 0
				? override.joinColumns()[0]
				: attribute.getAnnotation(JoinColumn.class);
		if (joinColumn != null && joinColumn.name().length() > 0) {
			this.column = containerTable.resolveColumn(joinColumn.name());
		} else {
			this.column = containerTable.resolveColumn(attribute.getName() + "_"
					+ (this.targetClass == null ? "id" : this.targetClass.getIdColumn(attribute)));
		}
	} else {
		this.column = null;
	}

	// Initialize ANY meta information
	final String anyColumnName = mapping.getAnyMetaColumn();
	if (anyColumnName != null) {
		this.anyColumn = containerTable.resolveColumn(anyColumnName);
		fillMetaDefs(attribute, context.getDialect());
	} else {
		this.anyColumn = null;
	}
}
 

import javax.persistence.MapsId; //导入依赖的package包/类
@MapsId("processId")
@ManyToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "PROCESS_ID", insertable = false, updatable = false)
public ModelRatingResults getModelRatingResults() {
    return this.modelRatingResults;
}
 

import javax.persistence.MapsId; //导入依赖的package包/类
@JoinColumn(name = "ID2", nullable = false)
@ManyToOne
@MapsId(value = "id2")
public UseCase2 getId2() {
    return id2;
}
 

import javax.persistence.MapsId; //导入依赖的package包/类
private static String findMappedId(final AttributeAccessor attribute) {
	final MapsId mapsId = attribute.getAnnotation(MapsId.class);
	return mapsId == null || mapsId.value().length() == 0 ? null : mapsId.value();
}
 

import javax.persistence.MapsId; //导入依赖的package包/类
/**
 * Return true if MapsId annotation is define on a field.
 * @param field the field
 * @return true/false.
 */
public static boolean isMapsId(final Field field) {
    return field.getAnnotation(MapsId.class) != null;
}
 

import javax.persistence.MapsId; //导入依赖的package包/类
/**
 * Get field name from MapsId annotation.
 * @param field the field
 * @return the field name.
 */
public static String getMapsIdValue(final Field field) {
    final MapsId m = field.getAnnotation(MapsId.class);
    return m == null ? null : m.value();
}