java.lang.Object
- org.alfresco.repo.discussion.DiscussionServiceImpl

All Implemented Interfaces:

DiscussionService
```
public class DiscussionServiceImpl
extends Object
implements DiscussionService
```
Since:

4.0

Author:

Nick Burch (based on existing webscript controllers in the REST API)

Field Summary

Fields
Modifier and Type	Field	Description
`protected static String`	`CANNED_QUERY_GET_CHILDREN`
`protected static String`	`CANNED_QUERY_GET_CHILDREN_TARGETS`
`protected static String`	`CANNED_QUERY_GET_TOPICS_WITH_POSTS`
`static String`	`DISCUSSION_COMPONENT`
`protected static int`	`MAX_REPLIES_FETCH_SIZE`

Constructor Summary

Constructors
Constructor Description

DiscussionServiceImpl()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`PostInfo`	`createPost(TopicInfo topic, String contents)`	Creates a new `PostInfo` in the given topic, with the specified contents.
`PostInfo`	`createReply(PostInfo parentPost, String contents)`	Creates a new `PostInfo` which is a reply to the specified other post, with the given contents.
`TopicInfo`	`createTopic(String siteShortName, String title)`	Creates a new `TopicInfo` in the given site
`TopicInfo`	`createTopic(org.alfresco.service.cmr.repository.NodeRef parentNodeRef, String title)`	Creates a new `TopicInfo` attached to the specified Node.
`void`	`deletePost(PostInfo post)`	Deletes an existing `PostInfo` from the repository
`void`	`deleteTopic(TopicInfo topic)`	Deletes an existing `TopicInfo` from the repository
`org.alfresco.query.PagingResults<TopicInfo>`	`findTopics(String siteShortName, String username, String tag, boolean sortAscending, org.alfresco.query.PagingRequest paging)`	Searches for all topics in a site, filtered by username or tag, sorted by either oldest or newest topics first.
`org.alfresco.query.PagingResults<TopicInfo>`	`findTopics(org.alfresco.service.cmr.repository.NodeRef nodeRef, String username, String tag, boolean sortAscending, org.alfresco.query.PagingRequest paging)`	Searches for all topics attached to the specified Node, filtered by username or tag, sorted by either oldest or newest topics first.
`org.alfresco.util.Pair<TopicInfo,PostInfo>`	`getForNodeRef(org.alfresco.service.cmr.repository.NodeRef nodeRef)`	For a given NodeRef corresponding to either a `TopicInfo` or a `PostInfo`, returns the objects wrapping the Node.
`PostInfo`	`getMostRecentPost(TopicInfo topic)`	Retrieves the newest (most recent) Post in a topic, be that the Primary Post or a Reply.
`PostInfo`	`getPost(TopicInfo topic, String postName)`	Retrieves an existing `PostInfo` from the repository
`PostInfo`	`getPrimaryPost(TopicInfo topic)`	Retrieves the Primary (Root) Post in a topic, to which all replies belong.
`protected org.alfresco.service.cmr.repository.NodeRef`	`getSiteDiscussionsContainer(String siteShortName, boolean create)`	Fetches the Discussions Container on a site, creating as required if requested.
`TopicInfo`	`getTopic(String siteShortName, String topicName)`	Retrieves an existing `TopicInfo` from the repository, which is within a site
`TopicInfo`	`getTopic(org.alfresco.service.cmr.repository.NodeRef parentNodeRef, String topicName)`	Retrieves an existing `TopicInfo` from the repository, which is attached to the specified Node.
`org.alfresco.query.PagingResults<org.alfresco.util.Pair<TopicInfo,Integer>>`	`listHotTopics(String siteShortName, Date since, org.alfresco.query.PagingRequest paging)`	Finds topics which have had replies since the specified date, and returns them along with the count of replies since then.
`org.alfresco.query.PagingResults<org.alfresco.util.Pair<TopicInfo,Integer>>`	`listHotTopics(org.alfresco.service.cmr.repository.NodeRef nodeRef, Date since, org.alfresco.query.PagingRequest paging)`	Finds topics which have had replies since the specified date, and returns them along with the count of replies since then.
`PostWithReplies`	`listPostReplies(PostInfo primaryPost, int levels)`	Retrieves all replies to a Post
`PostWithReplies`	`listPostReplies(TopicInfo topic, int levels)`	Retrieves all replies on a Topic
`org.alfresco.query.PagingResults<PostInfo>`	`listPosts(TopicInfo topic, org.alfresco.query.PagingRequest paging)`	Retrieves all posts in a topic, ordered by creation date
`org.alfresco.query.PagingResults<TopicInfo>`	`listTopics(String siteShortName, boolean sortAscending, org.alfresco.query.PagingRequest paging)`	Retrieves all topics in a site, sorted by either oldest or newest topics first.
`org.alfresco.query.PagingResults<TopicInfo>`	`listTopics(String siteShortName, String username, boolean sortAscending, org.alfresco.query.PagingRequest paging)`	Retrieves all topics in a site, filtered by username, sorted by either oldest or newest topics first.
`org.alfresco.query.PagingResults<TopicInfo>`	`listTopics(String siteShortName, Date from, Date to, boolean sortAscending, org.alfresco.query.PagingRequest paging)`	Retrieves all topics in a site, created in the given date range, sorted by either oldest or newest topics first.
`org.alfresco.query.PagingResults<TopicInfo>`	`listTopics(org.alfresco.service.cmr.repository.NodeRef nodeRef, boolean sortAscending, org.alfresco.query.PagingRequest paging)`	Retrieves all topics attached to the specified Node, sorted by either oldest or newest topics first.
`org.alfresco.query.PagingResults<TopicInfo>`	`listTopics(org.alfresco.service.cmr.repository.NodeRef nodeRef, String username, boolean sortAscending, org.alfresco.query.PagingRequest paging)`	Retrieves all topics attached to the specified Node, filtered by username, sorted by either oldest or newest topics first.
`org.alfresco.query.PagingResults<TopicInfo>`	`listTopics(org.alfresco.service.cmr.repository.NodeRef nodeRef, Date from, Date to, boolean sortAscending, org.alfresco.query.PagingRequest paging)`	Retrieves all topics attached to the specified Node, created in the given date range, sorted by either oldest or newest topics first.
`void`	`setCannedQueryRegistry(org.alfresco.util.registry.NamedObjectRegistry<org.alfresco.query.CannedQueryFactory<? extends Object>> cannedQueryRegistry)`	Set the registry of `canned queries`
`void`	`setContentService(ContentService contentService)`
`void`	`setNamespaceService(org.alfresco.service.namespace.NamespaceService namespaceService)`
`void`	`setNodeDAO(NodeDAO nodeDAO)`
`void`	`setNodeService(org.alfresco.service.cmr.repository.NodeService nodeService)`
`void`	`setSearchService(org.alfresco.service.cmr.search.SearchService searchService)`
`void`	`setSiteService(SiteService siteService)`
`void`	`setTaggingService(TaggingService taggingService)`
`void`	`setTenantService(org.alfresco.repo.tenant.TenantService tenantService)`	Set the `TenantService`
`void`	`setTransactionService(TransactionService transactionService)`
`PostInfo`	`updatePost(PostInfo post)`	Updates an existing `PostInfo` in the repository.
`TopicInfo`	`updateTopic(TopicInfo topic)`	Updates an existing `TopicInfo` in the repository.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail
- DISCUSSION_COMPONENT
```
public static final String DISCUSSION_COMPONENT
```
  See Also:
  
  Constant Field Values
- CANNED_QUERY_GET_CHILDREN
```
protected static final String CANNED_QUERY_GET_CHILDREN
```
  See Also:
  
  Constant Field Values
- CANNED_QUERY_GET_CHILDREN_TARGETS
```
protected static final String CANNED_QUERY_GET_CHILDREN_TARGETS
```
  See Also:
  
  Constant Field Values
- CANNED_QUERY_GET_TOPICS_WITH_POSTS
```
protected static final String CANNED_QUERY_GET_TOPICS_WITH_POSTS
```
  See Also:
  
  Constant Field Values
- MAX_REPLIES_FETCH_SIZE
```
protected static final int MAX_REPLIES_FETCH_SIZE
```
  See Also:
  
  Constant Field Values

Constructor Detail
- DiscussionServiceImpl
```
public DiscussionServiceImpl()
```

Method Detail

setNodeDAO

public void setNodeDAO(NodeDAO nodeDAO)

setNodeService

public void setNodeService(org.alfresco.service.cmr.repository.NodeService nodeService)

setSiteService

public void setSiteService(SiteService siteService)

setSearchService

public void setSearchService(org.alfresco.service.cmr.search.SearchService searchService)

setContentService

public void setContentService(ContentService contentService)

setTaggingService

public void setTaggingService(TaggingService taggingService)

setNamespaceService

public void setNamespaceService(org.alfresco.service.namespace.NamespaceService namespaceService)

setTransactionService

public void setTransactionService(TransactionService transactionService)

setCannedQueryRegistry

public void setCannedQueryRegistry(org.alfresco.util.registry.NamedObjectRegistry<org.alfresco.query.CannedQueryFactory<? extends Object>> cannedQueryRegistry)

Set the registry of canned queries

setTenantService

public void setTenantService(org.alfresco.repo.tenant.TenantService tenantService)

Set the TenantService

getSiteDiscussionsContainer

protected org.alfresco.service.cmr.repository.NodeRef getSiteDiscussionsContainer(String siteShortName,
                                                                                  boolean create)

Fetches the Discussions Container on a site, creating as required if requested.

getTopic
```
public TopicInfo getTopic(String siteShortName,
                          String topicName)
```
Description copied from interface: DiscussionService

Retrieves an existing TopicInfo from the repository, which is within a site

Specified by:

getTopic in interface DiscussionService

getTopic
```
public TopicInfo getTopic(org.alfresco.service.cmr.repository.NodeRef parentNodeRef,
                          String topicName)
```
Description copied from interface: DiscussionService

Retrieves an existing TopicInfo from the repository, which is attached to the specified Node. The parent Node should normally either be a Site Container, or a ForumModel.TYPE_FORUM

Specified by:

getTopic in interface DiscussionService

getPost
```
public PostInfo getPost(TopicInfo topic,
                        String postName)
```
Description copied from interface: DiscussionService

Retrieves an existing PostInfo from the repository

Specified by:

getPost in interface DiscussionService

createTopic
```
public TopicInfo createTopic(String siteShortName,
                             String title)
```
Description copied from interface: DiscussionService

Creates a new TopicInfo in the given site

Specified by:

createTopic in interface DiscussionService

createTopic
```
public TopicInfo createTopic(org.alfresco.service.cmr.repository.NodeRef parentNodeRef,
                             String title)
```
Description copied from interface: DiscussionService

Creates a new TopicInfo attached to the specified Node. The parent Node should normally either be a Site Container, or a ForumModel.TYPE_FORUM

Specified by:

createTopic in interface DiscussionService

createPost
```
public PostInfo createPost(TopicInfo topic,
                           String contents)
```
Description copied from interface: DiscussionService

Creates a new PostInfo in the given topic, with the specified contents. Normally only one post is created this way on a topic, and the remainder of the posts are created as replies to the DiscussionService.getPrimaryPost(TopicInfo) primary post.

Specified by:

createPost in interface DiscussionService

Returns:

The newly created PostInfo

createReply
```
public PostInfo createReply(PostInfo parentPost,
                            String contents)
```
Description copied from interface: DiscussionService

Creates a new PostInfo which is a reply to the specified other post, with the given contents. The link between the parent post and the reply is created as part of this.

Specified by:

createReply in interface DiscussionService

Returns:

The newly created PostInfo

updateTopic
```
public TopicInfo updateTopic(TopicInfo topic)
```
Description copied from interface: DiscussionService

Updates an existing TopicInfo in the repository.

Specified by:

updateTopic in interface DiscussionService

Returns:

The updated TopicInfo

updatePost
```
public PostInfo updatePost(PostInfo post)
```
Description copied from interface: DiscussionService

Updates an existing PostInfo in the repository.

Specified by:

updatePost in interface DiscussionService

Returns:

The updated PostInfo

deleteTopic
```
public void deleteTopic(TopicInfo topic)
```
Description copied from interface: DiscussionService

Deletes an existing TopicInfo from the repository

Specified by:

deleteTopic in interface DiscussionService

deletePost
```
public void deletePost(PostInfo post)
```
Description copied from interface: DiscussionService

Deletes an existing PostInfo from the repository

Specified by:

deletePost in interface DiscussionService

getForNodeRef
```
public org.alfresco.util.Pair<TopicInfo,PostInfo> getForNodeRef(org.alfresco.service.cmr.repository.NodeRef nodeRef)
```
Description copied from interface: DiscussionService

For a given NodeRef corresponding to either a TopicInfo or a PostInfo, returns the objects wrapping the Node. For a Topic, the 2nd half of the pair is null. For a Post, both halves of the pair are set. For anything else, the response is null.

Specified by:

getForNodeRef in interface DiscussionService

getPrimaryPost
```
public PostInfo getPrimaryPost(TopicInfo topic)
```
Description copied from interface: DiscussionService

Retrieves the Primary (Root) Post in a topic, to which all replies belong. Returns null if the topic currently has no posts

Specified by:

getPrimaryPost in interface DiscussionService

getMostRecentPost
```
public PostInfo getMostRecentPost(TopicInfo topic)
```
Description copied from interface: DiscussionService

Retrieves the newest (most recent) Post in a topic, be that the Primary Post or a Reply. This is typically used when identifying if a topic has had new posts added to it since the user last saw it. Note that this works on Created Date, and not Modified/Updated, so edits to an existing post will not change this.

Specified by:

getMostRecentPost in interface DiscussionService