org.javalite.async

Class Command

java.lang.Object

org.javalite.async.Command

Direct Known Subclasses:

HelloPerformanceCommand

public abstract class Command
extends Object

Super class of all commands. Only the method execute() is to be provided by subclasses to do real application work.

Author:

Igor Polevoy on 4/4/15.

Constructor Summary

Constructors

Constructor and Description
Command()

Method Summary

Modifier and Type	Method and Description
abstract void	execute() Subclasses are to provide implementation of this method to get application-specific work done.
static <T extends Command> T	fromBytes(byte[] bytes)
static <T extends Command> T	fromXml(String commandXml) Method used by framework to de-serialize a command from XML.
String	getJMSMessageID()
void	setJMSMessageID(String jmsMessageId)
byte[]	toBytes() Flattens(serializes, dehydrates, etc.) this instance to a binary representation.
String	toXml() Serializes this object into XML.

Methods inherited from class java.lang.Object

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

Constructor Detail

Command

public Command()

Method Detail

fromXml

public static <T extends Command> T fromXml(String commandXml)

Method used by framework to de-serialize a command from XML.

Parameters:

commandXml - XML representation of a command.

Returns:

new instance of a command initialized with data from commandXml argument.

execute

public abstract void execute()

Subclasses are to provide implementation of this method to get application-specific work done.

toXml

public final String toXml()

Serializes this object into XML. The output is used by fromXml(String) to de-serialize a command after it passes through messaging broker.

Returns:

XML representation of this instance.

toBytes

public byte[] toBytes()
               throws IOException

Flattens(serializes, dehydrates, etc.) this instance to a binary representation.

Returns:

a binary representation

Throws:

IOException

fromBytes

public static <T extends Command> T fromBytes(byte[] bytes)
                                       throws IOException

Throws:

IOException

getJMSMessageID

public String getJMSMessageID()

setJMSMessageID

public void setJMSMessageID(String jmsMessageId)