Package jmri.jmrix.dccpp.swing.messages

Class MessageQueue

java.lang.Object

jmri.jmrix.dccpp.swing.messages.MessageQueue

public class MessageQueue
extends Object

Timestamped DCC-EX messages, newest first, with expiry and a line limit; no Swing, thread-safe.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final class	MessageQueue.Entry	One received message.

Field Summary

Fields

Modifier and Type	Field	Description
static final int	DEFAULT_EXPIRY_SECONDS
static final int	DEFAULT_MAX_LINES

Constructor Summary

Constructors

Constructor	Description
MessageQueue()
MessageQueue(LongSupplier clock)

Method Summary

Modifier and Type	Method	Description
void	add(String text)
void	clear()
boolean	expire()	Remove messages older than the expiry time; true if any were removed.
List<MessageQueue.Entry>	getEntries()	Unmodifiable copy of the messages, newest first.
int	getExpirySeconds()
int	getMaxLines()
void	setExpirySeconds(int seconds)	Seconds a message is kept; 0 keeps it until newer messages push it out.
void	setMaxLines(int lines)

Methods inherited from class java.lang.Object

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

Field Details

DEFAULT_EXPIRY_SECONDS

public static final int DEFAULT_EXPIRY_SECONDS

See Also:

• Constant Field Values

DEFAULT_MAX_LINES

public static final int DEFAULT_MAX_LINES

See Also:

• Constant Field Values

Constructor Details

MessageQueue

public MessageQueue()

MessageQueue

public MessageQueue(LongSupplier clock)

Method Details

add

public void add(String text)

getEntries

public List<MessageQueue.Entry> getEntries()

Unmodifiable copy of the messages, newest first.

expire

public boolean expire()

Remove messages older than the expiry time; true if any were removed.

clear

public void clear()

setExpirySeconds

public void setExpirySeconds(int seconds)

Seconds a message is kept; 0 keeps it until newer messages push it out.

getExpirySeconds

public int getExpirySeconds()

setMaxLines

public void setMaxLines(int lines)

getMaxLines

public int getMaxLines()