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public interface EventManager
An interface for registering EventListener
s to listen for
database events.
Method Summary | |
---|---|
void |
addEventListener(java.lang.String eventName,
EventListener listener)
Register an EventListener that will be called when an event occurs. |
void |
connect()
Make a connection with a database to listen for events. |
void |
disconnect()
Close the connection to the database. |
java.lang.String |
getDatabase()
|
java.lang.String |
getHost()
|
java.lang.String |
getPassword()
|
int |
getPort()
|
java.lang.String |
getUser()
|
void |
removeEventListener(java.lang.String eventName,
EventListener listener)
Remove an EventListener for a given event. |
void |
setDatabase(java.lang.String database)
Sets the database path for the connection to the database. |
void |
setHost(java.lang.String host)
Sets the host for the connection to the database. |
void |
setPassword(java.lang.String password)
Sets the password for the connection to the database. |
void |
setPort(int port)
Sets the port for the connection to the database. |
void |
setUser(java.lang.String user)
Sets the username for the connection to the database . |
int |
waitForEvent(java.lang.String eventName)
Wait for the one-time occurence of an event. |
int |
waitForEvent(java.lang.String eventName,
int timeout)
Wait for the one-time occurence of an event. |
Method Detail |
---|
void connect() throws java.sql.SQLException
java.sql.SQLException
- If a database communication error occursvoid disconnect() throws java.sql.SQLException
java.sql.SQLException
- If a database communication error occursvoid setUser(java.lang.String user)
user
- for the connection to the database.java.lang.String getUser()
void setPassword(java.lang.String password)
password
- for the connection to the database.java.lang.String getPassword()
void setDatabase(java.lang.String database)
database
- path for the connection to the database.java.lang.String getDatabase()
java.lang.String getHost()
void setHost(java.lang.String host)
host
- for the connection to the database.int getPort()
void setPort(int port)
port
- for the connection to the database.void addEventListener(java.lang.String eventName, EventListener listener) throws java.sql.SQLException
eventName
- The name of the event for which the listener will
be notifiedlistener
- The EventListener that will be called when the given
event occurs
java.sql.SQLException
- If a database access error occursvoid removeEventListener(java.lang.String eventName, EventListener listener) throws java.sql.SQLException
eventName
- The name of the event for which the listener
will be unregistered.listener
- The EventListener that is to be unregistered
java.sql.SQLException
- If a database access error occursint waitForEvent(java.lang.String eventName) throws java.lang.InterruptedException, java.sql.SQLException
eventName
occurs. The return value is the
number of occurrences of the requested event.
eventName
- The name of the event to wait for
java.lang.InterruptedException
- If interrupted while waiting
java.sql.SQLException
- If a database access error occursint waitForEvent(java.lang.String eventName, int timeout) throws java.lang.InterruptedException, java.sql.SQLException
timeout
milliseconds,
waiting for the event identified by eventName
to occur.
A timeout value of 0
means wait indefinitely.
The return value is the number of occurences of the event in question,
or -1
if the call timed out.
eventName
- The name of the event to wait fortimeout
- The maximum number of milliseconds to wait
-1
if the call timed out
java.lang.InterruptedException
- If interrupted while waiting
java.sql.SQLException
- If a database access error occurs
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