org.blojsom.fetcher.database
Class DatabaseFetcher

java.lang.Object
  org.blojsom.fetcher.database.DatabaseFetcher

All Implemented Interfaces:

Fetcher, Listener

public class DatabaseFetcher

extends java.lang.Object

implements Fetcher, Listener

Database fetcher

Since:

blojsom 3.0

Version:

$Id: DatabaseFetcher.java,v 1.37 2007/04/03 16:41:00 czarneckid Exp $

Author:

David Czarnecki

Field Summary

protected java.util.Properties	_blojsomProperties
protected EventBroadcaster	_eventBroadcaster
protected org.apache.commons.logging.Log	_logger
protected javax.servlet.ServletConfig	_servletConfig
protected org.hibernate.SessionFactory	_sessionFactory

Constructor Summary

DatabaseFetcher()
Create a new instance of the database fetcher

Method Summary

java.lang.Integer	countEntries(Blog blog) Count the number of entries for a blog
java.lang.Integer	countEntriesForCategory(Blog blog, Category category) Count the number of entries for a blog category
protected java.lang.String	createPostSlug(Blog blog, Entry entry) Create a unique post slug
void	deleteBlog(Blog blog) Delete a blog
void	deleteCategory(Blog blog, Category category) Delete a given Category
void	deleteComment(Blog blog, Comment comment) Delete a given Comment
void	deleteEntry(Blog blog, Entry entry) Delete a given Entry
void	deletePingback(Blog blog, Pingback pingback) Delete a given Pingback
void	deleteTrackback(Blog blog, Trackback trackback) Delete a given Trackback
void	deleteUser(Blog blog, java.lang.Integer userID) Delete a given user from a blog
void	destroy() Called when BlojsomServlet is taken out of service
Category[]	fetchCategories(javax.servlet.http.HttpServletRequest httpServletRequest, javax.servlet.http.HttpServletResponse httpServletResponse, Blog blog, java.lang.String flavor, java.util.Map context) Fetch a set of Category objects
Entry[]	fetchEntries(javax.servlet.http.HttpServletRequest httpServletRequest, javax.servlet.http.HttpServletResponse httpServletResponse, Blog blog, java.lang.String flavor, java.util.Map context) Fetch a set of Entry objects.
Entry[]	findEntries(Blog blog, java.lang.String query) Find entries which have the search query in their title or description
Entry[]	findEntriesBetweenDates(Blog blog, java.util.Date startDate, java.util.Date endDate) Find entries between a start and end date
Entry[]	findEntriesByMetadataKeyValue(Blog blog, java.lang.String metadataKey, java.lang.String metadataValue, boolean pre, boolean post) Find entries by a metadata key/value pair
Entry[]	findEntriesWithMetadataKey(Blog blog, java.lang.String metadataKey) Find entries with a given metadata key
java.util.List	findResponsesByQuery(Blog blog, java.lang.String query) Find the responses (comments, trackbacks, pingbacks) for a given Blog matching some query
java.util.List	findResponsesByStatus(Blog blog, java.lang.String[] status) Load the responses (comments, trackbacks, pingbacks) for a given Blog matching one of a set of status codes
protected java.lang.String	getBlogCategory(Blog blog, javax.servlet.http.HttpServletRequest httpServletRequest) Determine the blog category based on the request
User[]	getUsers(Blog blog) Retrieve the users for a given blog
void	handleEvent(Event event) Handle an event broadcast from another component
void	init() Initialize this fetcher.
Category[]	loadAllCategories(Blog blog) Load each Category for a given blog
Entry[]	loadAllEntriesForCategory(Blog blog, java.lang.Integer categoryId) Load all the entries for a given category
Blog	loadBlog(java.lang.Integer id) Load the Blog given the ID
Blog	loadBlog(java.lang.String blogId) Load the Blog given the blog ID
java.lang.String[]	loadBlogIDs() Load the blog IDs
void	loadCategory(Blog blog, Category category) Load a given Category
Category	loadCategory(Blog blog, java.lang.Integer categoryId) Load the Category for a given category ID
Category	loadCategory(Blog blog, java.lang.String name) Load the Category for a given category name
void	loadComment(Blog blog, Comment comment) Load a given Comment
Entry[]	loadEntries(Blog blog, int pageSize, int page) Load a set of entries using a given page size and page in which to retrieve the entries
Entry[]	loadEntries(int pageSize, int page, Category specificCategory, Category[] defaultCategories) Load a set of entries using a given page size and page in which to retrieve the entries
Entry[]	loadEntriesForCategory(Blog blog, java.lang.Integer categoryId, java.lang.Integer limit) Load all the entries for a given category
void	loadEntry(Blog blog, Entry entry) Load a given Entry
Entry	loadEntry(Blog blog, java.lang.Integer entryId) Load an Entry for a given entry ID
Entry	loadEntry(Blog blog, java.lang.String postSlug) Load an Entry given a post slug
void	loadPingback(Blog blog, Pingback pingback) Load a given Pingback
Pingback	loadPingback(Blog blog, java.lang.String sourceURI, java.lang.String targetURI) Load a pingback given the source URI and target URI
Entry[]	loadPreviousEntries(Blog blog, Entry entry, int numPreviousEntries) Loads the previous entries of a specified entry
java.util.List	loadRecentComments(Blog blog) Load the recent comments for a blog
java.util.List	loadRecentPingbacks(Blog blog) Load the recent pingbacks for a blog
java.util.List	loadRecentTrackbacks(Blog blog) Load the recent trackbacks for a blog
void	loadTrackback(Blog blog, Trackback trackback) Load a given Trackback
User	loadUser(Blog blog, java.lang.Integer userID) Load a given User from a blog given their ID
User	loadUser(Blog blog, java.lang.String userLogin) Load a User from a blog
Blog	newBlog() Return a new Blog instance
Category	newCategory() Return a new Category instance
Comment	newComment() Return a new Comment instance
Entry	newEntry() Return a new Entry instance
Pingback	newPingback() Return a new Pingback instance
Trackback	newTrackback() Return a new Trackback instance
User	newUser() Return a new User instance
void	processEvent(Event event) Process an event from another component
void	saveBlog(Blog blog) Save a Blog
void	saveCategory(Blog blog, Category category) Save a given Category
void	saveComment(Blog blog, Comment comment) Save a given Comment
void	saveEntry(Blog blog, Entry entry) Save a given Entry
void	savePingback(Blog blog, Pingback pingback) Save a given Pingback
void	saveTrackback(Blog blog, Trackback trackback) Save a given Trackback
User	saveUser(Blog blog, User user) Save a given User to the blog
void	setBlojsomProperties(java.util.Properties blojsomProperties) Set the default blojsom properties
void	setEventBroadcaster(EventBroadcaster eventBroadcaster) Set the EventBroadcaster event broadcaster
void	setServletConfig(javax.servlet.ServletConfig servletConfig) Set the ServletConfig for the fetcher to grab initialization parameters
void	setSessionFactory(org.hibernate.SessionFactory sessionFactory) Set the SessionFactory

Methods inherited from class java.lang.Object

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

Field Detail

_logger

protected org.apache.commons.logging.Log _logger

_servletConfig

protected javax.servlet.ServletConfig _servletConfig

_eventBroadcaster

protected EventBroadcaster _eventBroadcaster

_sessionFactory

protected org.hibernate.SessionFactory _sessionFactory

_blojsomProperties

protected java.util.Properties _blojsomProperties

Constructor Detail

DatabaseFetcher

public DatabaseFetcher()

Create a new instance of the database fetcher

Method Detail

setServletConfig

public void setServletConfig(javax.servlet.ServletConfig servletConfig)

Set the ServletConfig for the fetcher to grab initialization parameters

Parameters:

servletConfig - ServletConfig

setEventBroadcaster

public void setEventBroadcaster(EventBroadcaster eventBroadcaster)

Set the EventBroadcaster event broadcaster

Parameters:

eventBroadcaster - EventBroadcaster

setSessionFactory

public void setSessionFactory(org.hibernate.SessionFactory sessionFactory)

Set the SessionFactory

Parameters:

sessionFactory - SessionFactory

setBlojsomProperties

public void setBlojsomProperties(java.util.Properties blojsomProperties)

Set the default blojsom properties

Parameters:

blojsomProperties - Default blojsom properties

init

public void init()
          throws FetcherException

Initialize this fetcher. This method only called when the fetcher is instantiated.

Specified by:

init in interface Fetcher

Throws:

FetcherException - If there is an error initializing the fetcher

newEntry

public Entry newEntry()

Return a new Entry instance

Specified by:

newEntry in interface Fetcher

Returns:

Blog entry instance

newComment

public Comment newComment()

Return a new Comment instance

Specified by:

newComment in interface Fetcher

Returns:

Comment object

newTrackback

public Trackback newTrackback()

Return a new Trackback instance

Specified by:

newTrackback in interface Fetcher

Returns:

Trackback object

newPingback

public Pingback newPingback()

Return a new Pingback instance

Specified by:

newPingback in interface Fetcher

Returns:

Pingback object

newCategory

public Category newCategory()

Return a new Category instance

Specified by:

newCategory in interface Fetcher

Returns:

Category object

newBlog

public Blog newBlog()

Return a new Blog instance

Specified by:

newBlog in interface Fetcher

Returns:

Blog object

newUser

public User newUser()

Return a new User instance

Specified by:

newUser in interface Fetcher

Returns:

User object

loadBlog

public Blog loadBlog(java.lang.String blogId)
              throws FetcherException

Load the Blog given the blog ID

Specified by:

loadBlog in interface Fetcher

Parameters:

blogId - Blog ID

Returns:

Blog object

Throws:

FetcherException - If there is an error loading the blog

loadBlog

public Blog loadBlog(java.lang.Integer id)
              throws FetcherException

Load the Blog given the ID

Specified by:

loadBlog in interface Fetcher

Parameters:

id - ID

Returns:

Blog blog

Throws:

FetcherException - If there is an error loading the blog

saveBlog

public void saveBlog(Blog blog)
              throws FetcherException

Save a Blog

Specified by:

saveBlog in interface Fetcher

Parameters:

blog - Blog

Throws:

FetcherException - If there is an error saving the blog

deleteBlog

public void deleteBlog(Blog blog)
                throws FetcherException

Delete a blog

Specified by:

deleteBlog in interface Fetcher

Parameters:

blog - Blog

Throws:

FetcherException - If there is an error deleting the blog

loadBlogIDs

public java.lang.String[] loadBlogIDs()
                               throws FetcherException

Load the blog IDs

Specified by:

loadBlogIDs in interface Fetcher

Returns:

List of blog IDs

Throws:

FetcherException - If there is an error loading the blog IDs

fetchEntries

public Entry[] fetchEntries(javax.servlet.http.HttpServletRequest httpServletRequest,
                            javax.servlet.http.HttpServletResponse httpServletResponse,
                            Blog blog,
                            java.lang.String flavor,
                            java.util.Map context)
                     throws FetcherException

Fetch a set of Entry objects.

Specified by:

fetchEntries in interface Fetcher

Parameters:

httpServletRequest - Request

httpServletResponse - Response

blog - Blog instance

flavor - Flavor

context - Context

Returns:

Blog entries retrieved for the particular request

Throws:

FetcherException - If there is an error retrieving the blog entries for the request

loadAllEntriesForCategory

public Entry[] loadAllEntriesForCategory(Blog blog,
                                         java.lang.Integer categoryId)
                                  throws FetcherException

Load all the entries for a given category

Specified by:

loadAllEntriesForCategory in interface Fetcher

Parameters:

blog - Blog

categoryId - Category ID

Returns:

Blog entries for a given category

Throws:

FetcherException - If there is an error loading the entries

loadEntriesForCategory

public Entry[] loadEntriesForCategory(Blog blog,
                                      java.lang.Integer categoryId,
                                      java.lang.Integer limit)
                               throws FetcherException

Load all the entries for a given category

Specified by:

loadEntriesForCategory in interface Fetcher

Parameters:

blog - Blog

categoryId - Category ID

limit - Limit on number of entries to return

Returns:

Blog entries for a given category

Throws:

FetcherException - If there is an error loading the entries

loadEntries

public Entry[] loadEntries(Blog blog,
                           int pageSize,
                           int page)
                    throws FetcherException

Load a set of entries using a given page size and page in which to retrieve the entries

Specified by:

loadEntries in interface Fetcher

Parameters:

blog - Blog

pageSize - Page size

page - Page

Returns:

Blog entries

Throws:

FetcherException - If there is an error loading the entries

loadEntries

public Entry[] loadEntries(int pageSize,
                           int page,
                           Category specificCategory,
                           Category[] defaultCategories)
                    throws FetcherException

Load a set of entries using a given page size and page in which to retrieve the entries

Specified by:

loadEntries in interface Fetcher

Parameters:

pageSize - Page size

page - Page

specificCategory - Category

defaultCategories - Default categories to use for requesting entries from the blogs

Returns:

Blog entries

Throws:

FetcherException - If there is an error loading the entries

findEntries

public Entry[] findEntries(Blog blog,
                           java.lang.String query)
                    throws FetcherException

Find entries which have the search query in their title or description

Specified by:

findEntries in interface Fetcher

Parameters:

blog - Blog

query - Search query

Returns:

Blog entries which have the search query in their title or descirption

Throws:

FetcherException - If there is an error searching through entries

findEntriesByMetadataKeyValue

public Entry[] findEntriesByMetadataKeyValue(Blog blog,
                                             java.lang.String metadataKey,
                                             java.lang.String metadataValue,
                                             boolean pre,
                                             boolean post)
                                      throws FetcherException

Find entries by a metadata key/value pair

Specified by:

findEntriesByMetadataKeyValue in interface Fetcher

Parameters:

blog - Blog

metadataKey - Metadata key

metadataValue - Metadata value

pre - If the search should use % before the metadata value (match anything before)

post - If the search should use % after the metadata value (match antthing after)

Returns:

Entries matching metadata key and value using LIKE syntax for metadata value

Throws:

FetcherException - If there is an error searching through entries

findEntriesWithMetadataKey

public Entry[] findEntriesWithMetadataKey(Blog blog,
                                          java.lang.String metadataKey)
                                   throws FetcherException

Find entries with a given metadata key

Specified by:

findEntriesWithMetadataKey in interface Fetcher

Parameters:

blog - Blog

metadataKey - Metadata key

Returns:

Entries with the given metadata key

Throws:

FetcherException - If there is an error searching through entries

findEntriesBetweenDates

public Entry[] findEntriesBetweenDates(Blog blog,
                                       java.util.Date startDate,
                                       java.util.Date endDate)
                                throws FetcherException

Find entries between a start and end date

Specified by:

findEntriesBetweenDates in interface Fetcher

Parameters:

blog - Blog

startDate - Start date

endDate - End date

Returns:

Entries between a start and end date

Throws:

FetcherException - If there is an error searching for entries between the dates

loadPreviousEntries

public Entry[] loadPreviousEntries(Blog blog,
                                   Entry entry,
                                   int numPreviousEntries)
                            throws FetcherException

Loads the previous entries of a specified entry

Specified by:

loadPreviousEntries in interface Fetcher

Parameters:

blog - Blog

entry - Entry

numPreviousEntries - Number of previous entries to retrieve

Returns:

Array of entries before the given entry

Throws:

FetcherException - If there is an error retrieving previous entries

countEntries

public java.lang.Integer countEntries(Blog blog)
                               throws FetcherException

Count the number of entries for a blog

Specified by:

countEntries in interface Fetcher

Parameters:

blog - Blog

Returns:

Number of entries

Throws:

FetcherException - If there is an error counting the blog entries

countEntriesForCategory

public java.lang.Integer countEntriesForCategory(Blog blog,
                                                 Category category)
                                          throws FetcherException

Count the number of entries for a blog category

Specified by:

countEntriesForCategory in interface Fetcher

Parameters:

blog - Blog

category - Category

Returns:

Number of entries

Throws:

FetcherException - If there is an error counting the blog entries in the category

loadEntry

public Entry loadEntry(Blog blog,
                       java.lang.Integer entryId)
                throws FetcherException

Load an Entry for a given entry ID

Specified by:

loadEntry in interface Fetcher

Parameters:

blog - Blog

entryId - Entry ID

Returns:

Entry object

Throws:

FetcherException - If there is an error loading the entry

loadEntry

public Entry loadEntry(Blog blog,
                       java.lang.String postSlug)
                throws FetcherException

Load an Entry given a post slug

Specified by:

loadEntry in interface Fetcher

Parameters:

blog - Blog

postSlug - Post slug

Returns:

Entry for the given post slug

Throws:

FetcherException - If an entry for the blog and post slug cannot be found

getBlogCategory

protected java.lang.String getBlogCategory(Blog blog,
                                           javax.servlet.http.HttpServletRequest httpServletRequest)

Determine the blog category based on the request

Parameters:

blog - Blog

httpServletRequest - Request

Returns:

Category of the requested category

fetchCategories

public Category[] fetchCategories(javax.servlet.http.HttpServletRequest httpServletRequest,
                                  javax.servlet.http.HttpServletResponse httpServletResponse,
                                  Blog blog,
                                  java.lang.String flavor,
                                  java.util.Map context)
                           throws FetcherException

Fetch a set of Category objects

Specified by:

fetchCategories in interface Fetcher

Parameters:

httpServletRequest - Request

httpServletResponse - Response

blog - Blog instance

flavor - Flavor

context - Context

Returns:

Blog categories retrieved for the particular request

Throws:

FetcherException - If there is an error retrieving the blog categories for the request

loadAllCategories

public Category[] loadAllCategories(Blog blog)
                             throws FetcherException

Load each Category for a given blog

Specified by:

loadAllCategories in interface Fetcher

Parameters:

blog - Blog

Returns:

Category list for the blog

Throws:

FetcherException - If there is an error loading the categories

loadCategory

public Category loadCategory(Blog blog,
                             java.lang.Integer categoryId)
                      throws FetcherException

Load the Category for a given category ID

Specified by:

loadCategory in interface Fetcher

Parameters:

blog - Blog

categoryId - Category ID

Returns:

Category for the given category ID

Throws:

FetcherException - If there is an error loading the category

loadCategory

public Category loadCategory(Blog blog,
                             java.lang.String name)
                      throws FetcherException

Load the Category for a given category name

Specified by:

loadCategory in interface Fetcher

Parameters:

blog - Blog

name - Category name

Returns:

Category for the given category name

Throws:

FetcherException - If there is an error loading the category

createPostSlug

protected java.lang.String createPostSlug(Blog blog,
                                          Entry entry)

Create a unique post slug

Parameters:

blog - Blog

entry - Entry

Returns:

Unique post slug

saveEntry

public void saveEntry(Blog blog,
                      Entry entry)
               throws FetcherException

Save a given Entry

Specified by:

saveEntry in interface Fetcher

Parameters:

blog - Blog

entry - Entry to save

Throws:

FetcherException - If there is an error saving the entry

loadEntry

public void loadEntry(Blog blog,
                      Entry entry)
               throws FetcherException

Load a given Entry

Specified by:

loadEntry in interface Fetcher

Parameters:

blog - Blog

entry - Entry to load

Throws:

FetcherException - If there is an error loading the entry

deleteEntry

public void deleteEntry(Blog blog,
                        Entry entry)
                 throws FetcherException

Delete a given Entry

Specified by:

deleteEntry in interface Fetcher

Parameters:

blog - Blog

entry - Entry to delete

Throws:

FetcherException - If there is an error deleting the entry

saveCategory

public void saveCategory(Blog blog,
                         Category category)
                  throws FetcherException

Save a given Category

Specified by:

saveCategory in interface Fetcher

Parameters:

blog - Blog

category - Category to save

Throws:

FetcherException - If there is an error saving the category

loadCategory

public void loadCategory(Blog blog,
                         Category category)
                  throws FetcherException

Load a given Category

Specified by:

loadCategory in interface Fetcher

Parameters:

blog - Blog

category - Category to load

Throws:

FetcherException - If there is an loading saving the category

deleteCategory

public void deleteCategory(Blog blog,
                           Category category)
                    throws FetcherException

Delete a given Category

Specified by:

deleteCategory in interface Fetcher

Parameters:

blog - Blog

category - Category to delete

Throws:

FetcherException - If there is an error deleting the category

saveComment

public void saveComment(Blog blog,
                        Comment comment)
                 throws FetcherException

Save a given Comment

Specified by:

saveComment in interface Fetcher

Parameters:

blog - Blog

comment - Comment to save

Throws:

FetcherException - If there is an error saving the comment

loadComment

public void loadComment(Blog blog,
                        Comment comment)
                 throws FetcherException

Load a given Comment

Specified by:

loadComment in interface Fetcher

Parameters:

blog - Blog

comment - Comment to load

Throws:

FetcherException - If there is an error loading the comment

deleteComment

public void deleteComment(Blog blog,
                          Comment comment)
                   throws FetcherException

Delete a given Comment

Specified by:

deleteComment in interface Fetcher

Parameters:

blog - Blog

comment - Comment to delete

Throws:

FetcherException - If there is an error deleting the comment

loadRecentComments

public java.util.List loadRecentComments(Blog blog)
                                  throws FetcherException

Load the recent comments for a blog

Specified by:

loadRecentComments in interface Fetcher

Parameters:

blog - Blog

Returns:

List of recent comment

Throws:

FetcherException - If there is an error retrieving the recent comments

saveTrackback

public void saveTrackback(Blog blog,
                          Trackback trackback)
                   throws FetcherException

Save a given Trackback

Specified by:

saveTrackback in interface Fetcher

Parameters:

blog - Blog

trackback - Trackback to save

Throws:

FetcherException - If there is an error saving the trackback

loadTrackback

public void loadTrackback(Blog blog,
                          Trackback trackback)
                   throws FetcherException

Load a given Trackback

Specified by:

loadTrackback in interface Fetcher

Parameters:

blog - Blog

trackback - Trackback to load

Throws:

FetcherException - If there is an error loading the trackback

deleteTrackback

public void deleteTrackback(Blog blog,
                            Trackback trackback)
                     throws FetcherException

Delete a given Trackback

Specified by:

deleteTrackback in interface Fetcher

Parameters:

blog - Blog

trackback - Trackback to delete

Throws:

FetcherException - If there is an error deleting the trackback

loadRecentTrackbacks

public java.util.List loadRecentTrackbacks(Blog blog)
                                    throws FetcherException

Load the recent trackbacks for a blog

Specified by:

loadRecentTrackbacks in interface Fetcher

Parameters:

blog - Blog

Returns:

List of recent trackbacks

Throws:

FetcherException - If there is an error retrieving the recent trackbacks

savePingback

public void savePingback(Blog blog,
                         Pingback pingback)
                  throws FetcherException

Save a given Pingback

Specified by:

savePingback in interface Fetcher

Parameters:

blog - Blog

pingback - Pingback to save

Throws:

FetcherException - If there is an error saving the pingback

loadPingback

public void loadPingback(Blog blog,
                         Pingback pingback)
                  throws FetcherException

Load a given Pingback

Specified by:

loadPingback in interface Fetcher

Parameters:

blog - Blog

pingback - Pingback to load

Throws:

FetcherException - If there is an error loading the pingback

loadPingback

public Pingback loadPingback(Blog blog,
                             java.lang.String sourceURI,
                             java.lang.String targetURI)
                      throws FetcherException

Load a pingback given the source URI and target URI

Specified by:

loadPingback in interface Fetcher

Parameters:

blog - Blog

sourceURI - Source URI

targetURI - Target URI

Returns:

Pingback given the source and target URIs or null if not found

Throws:

FetcherException - If there was an erorr loading the pingback

deletePingback

public void deletePingback(Blog blog,
                           Pingback pingback)
                    throws FetcherException

Delete a given Pingback

Specified by:

deletePingback in interface Fetcher

Parameters:

blog - Blog

pingback - Pingback to delete

Throws:

FetcherException - If there is an error deleting the pingback

loadRecentPingbacks

public java.util.List loadRecentPingbacks(Blog blog)
                                   throws FetcherException

Load the recent pingbacks for a blog

Specified by:

loadRecentPingbacks in interface Fetcher

Parameters:

blog - Blog

Returns:

List of recent pingbacks

Throws:

FetcherException - If there is an error retrieving the recent pingbacks

loadUser

public User loadUser(Blog blog,
                     java.lang.String userLogin)
              throws FetcherException

Load a User from a blog

Specified by:

loadUser in interface Fetcher

Parameters:

blog - Blog

userLogin - Login ID

Returns:

User user

Throws:

FetcherException - If there is an error loading the User from the blog

getUsers

public User[] getUsers(Blog blog)

Retrieve the users for a given blog

Specified by:

getUsers in interface Fetcher

Parameters:

blog - Blog

Returns:

List of Users for a blog

loadUser

public User loadUser(Blog blog,
                     java.lang.Integer userID)
              throws FetcherException

Load a given User from a blog given their ID

Specified by:

loadUser in interface Fetcher

Parameters:

blog - Blog

userID - User ID

Returns:

User object

Throws:

FetcherException - If there is an error loading the user

saveUser

public User saveUser(Blog blog,
                     User user)
              throws FetcherException

Save a given User to the blog

Specified by:

saveUser in interface Fetcher

Parameters:

blog - Blog

user - User

Returns:

User object

Throws:

FetcherException - If there is an error saving the user to the blog

deleteUser

public void deleteUser(Blog blog,
                       java.lang.Integer userID)
                throws FetcherException

Delete a given user from a blog

Specified by:

deleteUser in interface Fetcher

Parameters:

blog - Blog

userID - User ID

Throws:

FetcherException - If there is an error deleting the user from the blog

findResponsesByStatus

public java.util.List findResponsesByStatus(Blog blog,
                                            java.lang.String[] status)
                                     throws FetcherException

Load the responses (comments, trackbacks, pingbacks) for a given Blog matching one of a set of status codes

Specified by:

findResponsesByStatus in interface Fetcher

Parameters:

blog - Blog

status - List of status codes to load

Returns:

List of responses (comments, trackbacks, pingbacks) matching one of a set of status codes

Throws:

FetcherException - If there is an error loading the responses

findResponsesByQuery

public java.util.List findResponsesByQuery(Blog blog,
                                           java.lang.String query)
                                    throws FetcherException

Find the responses (comments, trackbacks, pingbacks) for a given Blog matching some query

Specified by:

findResponsesByQuery in interface Fetcher

Parameters:

blog - Blog

query - Query which will match on various items such as commenter name, e-mail, IP address, etc.

Returns:

List of responses (comments, trackbacks, pingbacks) matching query

Throws:

FetcherException - If there is an error loading the responses

handleEvent

public void handleEvent(Event event)

Handle an event broadcast from another component

Specified by:

handleEvent in interface Listener

Parameters:

event - Event to be handled

processEvent

public void processEvent(Event event)

Process an event from another component

Specified by:

processEvent in interface Listener

Parameters:

event - Event to be handled

destroy

public void destroy()
             throws FetcherException

Called when BlojsomServlet is taken out of service

Specified by:

destroy in interface Fetcher

Throws:

FetcherException - If there is an error in finalizing this fetcher