StoreManager.java 文件源码

/**
 * Validates the provided class' annotations.
 * Currently the only validation performed is for @Id & @SpaceId annotations
 * that must be declared on the same getter.  
 */
private void validateClassAnnotations(Class<?> type) {
    // Validation is only relevant for Entities
    if (type.getAnnotation(Entity.class) == null)
        return;

    for (Method getter : type.getMethods()) {

        if (!getter.getName().startsWith("get"))
            continue;

        SpaceId spaceId = getter.getAnnotation(SpaceId.class);
        boolean hasJpaId = getter.getAnnotation(Id.class) != null || getter.getAnnotation(EmbeddedId.class) != null; 
        if (spaceId != null || hasJpaId) {                
            if (!hasJpaId || spaceId == null)
                throw new IllegalArgumentException("SpaceId and Id annotations must both be declared on the same property in JPA entities in type: " + type.getName());
            if (spaceId.autoGenerate()) {
                GeneratedValue generatedValue = getter.getAnnotation(GeneratedValue.class);
                if (generatedValue == null || generatedValue.strategy() != GenerationType.IDENTITY)
                    throw new IllegalArgumentException(
                            "SpaceId with autoGenerate=true annotated property should also have a JPA GeneratedValue annotation with strategy = GenerationType.IDENTITY.");
            }
            break;
        }
    }        
}