Java Doc for JDBCSpoolRepository.java in  » Net » james-2.3.1 » org » apache » james » mailrepository » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Net » james 2.3.1 » org.apache.james.mailrepository 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


org.apache.james.mailrepository.JDBCMailRepository
   org.apache.james.mailrepository.JDBCSpoolRepository

JDBCSpoolRepository
public class JDBCSpoolRepository extends JDBCMailRepository implements SpoolRepository(Code)
Implementation of a SpoolRepository on a database.

Requires a configuration element in the .conf.xml file of the form:
<repository destinationURL="town://path"
type="MAIL"
model="SYNCHRONOUS"/>
<driver>sun.jdbc.odbc.JdbcOdbcDriver</conn>
<conn>jdbc:odbc:LocalDB</conn>
<table>Message</table>
</repository>

destinationURL specifies..(Serge??)
Type can be SPOOL or MAIL
Model is currently not used and may be dropped
conn is the location of the ...(Serge)
table is the name of the table in the Database to be used

Requires a logger called MailRepository.

Approach for spool manager: PendingMessage inner class accept() is called.... checks whether needs to load PendingMessages() tries to get a message() if none, wait 60 accept(long) is called checks whether needs to load PendingMessages tries to get a message(long) if none, wait accordingly sync checkswhetherneedstoloadPendingMessages() if pending messages has messages in immediate process, return immediately if run query in last WAIT_LIMIT time, return immediately query and build 2 vectors of Pending messages. Ones that need immediate processing Ones that are delayed. put them in time order return get_a_message() loop through immediate messages. - remove top message - try to lock. if successful, return. otherwise loop. if nothing, return null get_a_message(long) try get_a_message() check top message in pending. if ready, then remove, try to lock, return if lock. return null.
version:
   1.0.0, 24/04/1999


Inner Class :class PendingMessage



Method Summary
public synchronized  Mailaccept()
     Return a message to process.
public synchronized  Mailaccept(long delay)
     Return a message that's ready to process.
public synchronized  Mailaccept(SpoolRepository.AcceptFilter filter)
     Returns an arbitrarily selected mail deposited in this Repository for which the supplied filter's accept method returns true.
public  voidconfigure(Configuration conf)
    
public  voidstore(Mail mc)
     Needs to override this method and reset the time to load to zero. This will force a reload of the pending messages queue once that is empty...



Method Detail
accept
public synchronized Mail accept() throws InterruptedException(Code)
Return a message to process. This is a message in the spool that is not locked.



accept
public synchronized Mail accept(long delay) throws InterruptedException(Code)
Return a message that's ready to process. If a message is of type "error" then check the last updated time, and don't try it until the long 'delay' parameter milliseconds has passed.



accept
public synchronized Mail accept(SpoolRepository.AcceptFilter filter) throws InterruptedException(Code)
Returns an arbitrarily selected mail deposited in this Repository for which the supplied filter's accept method returns true. Usage: RemoteDeliverySpool calls accept(filter) with some a filter which determines based on number of retries if the mail is ready for processing. If no message is ready the method will block until one is, the amount of time to block is determined by calling the filters getWaitTime method. the mail



configure
public void configure(Configuration conf) throws ConfigurationException(Code)

See Also:   org.apache.avalon.framework.configuration.Configurable.configure(Configuration)



store
public void store(Mail mc) throws javax.mail.MessagingException(Code)
Needs to override this method and reset the time to load to zero. This will force a reload of the pending messages queue once that is empty... a message that gets added will sit here until that queue time has passed and the list is then reloaded.



Fields inherited from org.apache.james.mailrepository.JDBCMailRepository
protected Context context(Code)(Java Doc)
protected DataSourceComponent datasource(Code)(Java Doc)
protected String datasourceName(Code)(Java Doc)
protected DataSourceSelector datasources(Code)(Java Doc)
protected boolean jdbcMailAttributesReady(Code)(Java Doc)
protected String repositoryName(Code)(Java Doc)
protected SqlResources sqlQueries(Code)(Java Doc)
protected String tableName(Code)(Java Doc)
protected JDBCUtil theJDBCUtil(Code)(Java Doc)

Methods inherited from org.apache.james.mailrepository.JDBCMailRepository
protected void checkJdbcAttributesSupport(DatabaseMetaData dbMetaData) throws SQLException(Code)(Java Doc)
public void configure(Configuration conf) throws ConfigurationException(Code)(Java Doc)
public void contextualize(Context context) throws ContextException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected Connection getConnection() throws SQLException(Code)(Java Doc)
public int hashCode()(Code)(Java Doc)
public void initialize() throws Exception(Code)(Java Doc)
public Iterator list() throws MessagingException(Code)(Java Doc)
public boolean lock(String key)(Code)(Java Doc)
public void remove(Mail mail) throws MessagingException(Code)(Java Doc)
public void remove(Collection mails) throws MessagingException(Code)(Java Doc)
public void remove(String key) throws MessagingException(Code)(Java Doc)
public Mail retrieve(String key) throws MessagingException(Code)(Java Doc)
public void service(ServiceManager componentManager) throws ServiceException(Code)(Java Doc)
public void store(Mail mc) throws MessagingException(Code)(Java Doc)
public boolean unlock(String key)(Code)(Java Doc)

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