JpaResourceInformationProvider.java 文件源码

@Override
public String getResourceType(Class<?> entityClass) {
    JpaResource annotation = entityClass.getAnnotation(JpaResource.class);
    if (annotation != null) {
        return annotation.type();
    }
    if (entityClass.getAnnotation(MappedSuperclass.class) != null) {
        return null; // super classes do not have a document type
    }

    String name = entityClass.getSimpleName();
    if (name.endsWith(ENTITY_NAME_SUFFIX)) {
        name = name.substring(0, name.length() - ENTITY_NAME_SUFFIX.length());
    }
    return Character.toLowerCase(name.charAt(0)) + name.substring(1);
}