Package lumis.service.socialnetworkservices.microblog.core.manager

Class PostManager

java.lang.Object

lumis.service.socialnetworkservices.microblog.core.manager.PostManager

public class PostManager
extends Object

Manager class used to deal with issues related to Posts.

Since:

6.1.0

Version:

$Revision: 20509 $ $Date: 2017-09-11 16:18:14 -0300 (Mon, 11 Sep 2017) $

Method Summary

Modifier and Type	Method	Description
Post	findById(String postId)	Method used to find a post by it's id.
List<Post>	findByOwnerId(String ownerId)	Method that retrieves a list of posts given an owner id.
List<Post>	findUserNetworkPosts(String userId, String searchKeyword, String serviceInstanceId, String socialNetworkId)	Method designed to retrieve posts that contains keywords specified by the user.
static PostManager	getInstance()	Singleton method that retrieves a instance of this class.
List<Post>	getPostsUsingHashtag(String serviceInstanceId, String hashtag)	Returns a list of posts that contains a given hashtag.
List<Post>	getUserWallPosts(String userId, String socialNetworkId, String serviceInstanceId, boolean isRefresh)	Returns the user wall posts.
void	remove(Post post)	Method that deletes an user post
void	removePostWithDependencies(Post post)	Method that deletes an user post and all related data, i.e., associated entities attached to it (Comments, PostAttachments, Hashtags)

Methods inherited from class java.lang.Object

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

Method Detail

getInstance

public static PostManager getInstance()

Singleton method that retrieves a instance of this class.

Returns:

an instance of PostManager

Since:

6.1.0

remove

public void remove(Post post)

Method that deletes an user post

Parameters:

post - The Post itself

Since:

6.1.0

removePostWithDependencies

public void removePostWithDependencies(Post post)
                                throws TransactionRequiredException,
                                       PortalException

Method that deletes an user post and all related data, i.e., associated entities attached to it (Comments, PostAttachments, Hashtags)

Parameters:

post - The Post itself

Throws:

PortalException

TransactionRequiredException

Since:

6.1.0

findByOwnerId

public List<Post> findByOwnerId(String ownerId)

Method that retrieves a list of posts given an owner id.

Parameters:

ownerId - id of the owner whose post should be found

Returns:

a list of posts from the given owner id.

Since:

6.1.0

findById

public Post findById(String postId)

Method used to find a post by it's id.

Parameters:

postId - the post id.

Returns:

a post instance if exists or null if not exists.

Since:

6.1.0

getUserWallPosts

public List<Post> getUserWallPosts(String userId,
                                   String socialNetworkId,
                                   String serviceInstanceId,
                                   boolean isRefresh)

Returns the user wall posts.

Parameters:

userId - identifier for the current user

socialNetworkId - identifier for the user social network

isRefresh - flag indicating if the operation is a refresh, i.e., only retrieves new posts, if available, to the user wall.

Returns:

the user wall posts.

Since:

6.1.0

findUserNetworkPosts

public List<Post> findUserNetworkPosts(String userId,
                                       String searchKeyword,
                                       String serviceInstanceId,
                                       String socialNetworkId)

Method designed to retrieve posts that contains keywords specified by the user. These posts are from the user social network, i.e, from followed users.

Parameters:

userId - identifier for the current user

searchKeyword - string that represents the search

socialNetworkId - identifier for the user social network

Returns:

the posts

Since:

6.1.0

getPostsUsingHashtag

public List<Post> getPostsUsingHashtag(String serviceInstanceId,
                                       String hashtag)

Returns a list of posts that contains a given hashtag.

Parameters:

serviceInstanceId - the service instance id.

hashtag - the given hash tag

Returns:

a list of posts that contains the given hashtag

Since:

6.1.0