Module org.firebirdsql.jaybird

Package org.firebirdsql.event

Interface EventManager

All Superinterfaces:

AttachmentProperties, AutoCloseable, BaseProperties

All Known Implementing Classes:

FBEventManager

public interface EventManager
extends AttachmentProperties, AutoCloseable

An interface for registering EventListener instances to listen for database events.

Author:

Gabriel Reid, Mark Rotteveel

Method Summary

Modifier and Type	Method	Description
void	addEventListener(String eventName, EventListener listener)	Register an EventListener that will be called when an event occurs.
void	close()	If connected, disconnects, otherwise does nothing.
void	connect()	Make a connection with a database to listen for events.
void	disconnect()	Close the connection to the database.
String	getDatabaseName()	Get the database name.
long	getWaitTimeout()	Get the poll timeout in milliseconds of the async thread to check whether it was stopped or not.
WireCrypt	getWireCryptAsEnum()	Get the wire encryption level.
boolean	isConnected()
void	removeEventListener(String eventName, EventListener listener)	Remove an EventListener for a given event.
void	setDatabaseName(String databaseName)	Set the database name.
void	setWaitTimeout(long waitTimeout)	Set the poll timeout in milliseconds of the async thread to check whether it was stopped or not.
void	setWireCryptAsEnum(WireCrypt wireCrypt)	Set the wire encryption level.
int	waitForEvent(String eventName)	Wait for the one-time occurrence of an event.
int	waitForEvent(String eventName, int timeout)	Wait for the one-time occurrence of an event.

Methods inherited from interface org.firebirdsql.jaybird.props.AttachmentProperties

getAuthPlugins, getCharSet, getConnectTimeout, getDbCryptConfig, getEnableProtocol, getEncoding, getParallelWorkers, getPassword, getPortNumber, getProcessId, getProcessName, getRoleName, getServerName, getSocketBufferSize, getSocketFactory, getSoTimeout, getType, getUser, getWireCrypt, isWireCompression, setAuthPlugins, setCharSet, setConnectTimeout, setDbCryptConfig, setEnableProtocol, setEncoding, setParallelWorkers, setPassword, setPortNumber, setProcessId, setProcessName, setRoleName, setServerName, setSocketBufferSize, setSocketFactory, setSoTimeout, setType, setUser, setWireCompression, setWireCrypt

Methods inherited from interface org.firebirdsql.jaybird.props.BaseProperties

connectionPropertyValues, getBooleanProperty, getBooleanProperty, getIntProperty, getIntProperty, getProperty, getProperty, setBooleanProperty, setIntProperty, setProperty

Method Details

connect

void connect()
      throws SQLException

Make a connection with a database to listen for events.

Throws:

SQLException - If a database communication error occurs

IllegalStateException - If already connected

close

void close()
    throws SQLException

If connected, disconnects, otherwise does nothing.

Contrary to disconnect(), this method does not throw IllegalStateException when not connected.

Specified by:

close in interface AutoCloseable

Throws:

SQLException - For errors during disconnect

Since:

3.0.7

disconnect

void disconnect()
         throws SQLException

Close the connection to the database.

Throws:

SQLException - If a database communication error occurs

IllegalStateException - If not currently connected

See Also:

• close()

isConnected

boolean isConnected()

Returns:

true when connected and able to listen for events

See Also:

• connect()
• disconnect()

getDatabaseName

String getDatabaseName()

Get the database name.

See DatabaseConnectionProperties.getDatabaseName() for details.

Returns:

database name

Since:

5

setDatabaseName

void setDatabaseName(String databaseName)

Set the database name.

See DatabaseConnectionProperties.setDatabaseName(String) for details.

Parameters:

databaseName - database name

Since:

5

getWireCryptAsEnum

WireCrypt getWireCryptAsEnum()

Get the wire encryption level.

Returns:

Wire encryption level

Since:

5

setWireCryptAsEnum

void setWireCryptAsEnum(WireCrypt wireCrypt)

Set the wire encryption level.

Parameters:

wireCrypt - Wire encryption level (null not allowed)

Since:

5

getWaitTimeout

long getWaitTimeout()

Get the poll timeout in milliseconds of the async thread to check whether it was stopped or not.

Default value is 1000 (1 second).

Returns:

wait timeout in milliseconds

setWaitTimeout

void setWaitTimeout(long waitTimeout)

Set the poll timeout in milliseconds of the async thread to check whether it was stopped or not.

Default value is 1000 (1 second).

Parameters:

waitTimeout - wait timeout in milliseconds

addEventListener

void addEventListener(String eventName,
 EventListener listener)
               throws SQLException

Register an EventListener that will be called when an event occurs.

Parameters:

eventName - The name of the event for which the listener will be notified

listener - The EventListener that will be called when the given event occurs

Throws:

SQLException - If a database access error occurs

removeEventListener

void removeEventListener(String eventName,
 EventListener listener)
                  throws SQLException

Remove an EventListener for a given event.

Parameters:

eventName - The name of the event for which the listener will be unregistered.

listener - The EventListener that is to be unregistered

Throws:

SQLException - If a database access error occurs

waitForEvent

int waitForEvent(String eventName)
          throws InterruptedException,
SQLException

Wait for the one-time occurrence of an event.

This method blocks indefinitely until the event identified by the value of eventName occurs. The return value is the number of occurrences of the requested event.

Parameters:

eventName - The name of the event to wait for

Returns:

The number of occurences of the requested event

Throws:

InterruptedException - If interrupted while waiting

SQLException - If a database access error occurs

waitForEvent

int waitForEvent(String eventName,
 int timeout)
          throws InterruptedException,
SQLException

Wait for the one-time occurrence of an event.

This method blocks for a maximum of 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.

Parameters:

eventName - The name of the event to wait for

timeout - The maximum number of milliseconds to wait

Returns:

The number of occurrences of the requested event, or 1 if the call timed out

Throws:

InterruptedException - If interrupted while waiting

SQLException - If a database access error occurs