com.communote.server.service

Class TopicHierarchyService

java.lang.Object

com.communote.server.service.TopicHierarchyService

@Service
public class TopicHierarchyService
extends Object

Author:

Communote GmbH - http://www.communote.com/

Constructor Summary

Constructors

Constructor and Description
TopicHierarchyService()

Method Summary

Modifier and Type	Method and Description
void	addTopic(Long parentTopicId, Long childTopicId) Method to add a topic as child to another topic.
void	removeTopic(Long parentTopicId, Long childTopicId) Method to remove a topic as child from another topic.
void	updateTopicStructure(Long topicId, TopicStructureTO structureChangeTO) Update the topic structure for a given topic

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

TopicHierarchyService

public TopicHierarchyService()

Method Detail

addTopic

public void addTopic(Long parentTopicId,
                     Long childTopicId)
              throws BlogNotFoundException,
                     BlogAccessException,
                     ToplevelTopicCannotBeChildException,
                     ParentIsAlreadyChildDataIntegrityViolationException

Method to add a topic as child to another topic.

Parameters:

parentTopicId - Id of the parent topic.

childTopicId - Id of the child topic.

Throws:

BlogAccessException - in case the current user is not manager of the parent topic or has no read access to the child topic

BlogNotFoundException - in case the parent and/or child topic do not exist

ToplevelTopicCannotBeChildException - in case the child topic is a top-level topic

ParentIsAlreadyChildDataIntegrityViolationException - in case the parent would be added as its own child

removeTopic

public void removeTopic(Long parentTopicId,
                        Long childTopicId)
                 throws BlogAccessException

Method to remove a topic as child from another topic.

Parameters:

parentTopicId - Id of the parent topic.

childTopicId - Id of the child topic.

Throws:

BlogAccessException - in case the current user is not manager of the parent topic or has no read access to the child topic

updateTopicStructure

public void updateTopicStructure(Long topicId,
                                 TopicStructureTO structureChangeTO)
                          throws BlogNotFoundException,
                                 AuthorizationException,
                                 ToplevelTopicCannotBeChildException,
                                 ToplevelTopicIsAlreadyChildBlogManagementException

Update the topic structure for a given topic

Parameters:

topicId - the ID of the topic

structureChangeTO - TO describing the changes to conduct

Throws:

BlogNotFoundException - in case the topic or one of the child topics to add or remove do not exist

AuthorizationException - in case the the current user is not authorized change the top-level state or add or remove child topics

ToplevelTopicCannotBeChildException - in case one of the child topics to add is a top-level topic

ToplevelTopicIsAlreadyChildBlogManagementException - in case the topic should be made a top level topic but is already a child of another topic

ParentIsAlreadyChildDataIntegrityViolationException - in case the parent would be added as its own child