com.topologi.diffx.event.impl
Class CommentEvent

java.lang.Object
  com.topologi.diffx.event.impl.CommentEvent

All Implemented Interfaces:

DiffXEvent, XMLFormattable, XMLWritable

public final class CommentEvent
extends Object
implements DiffXEvent

A comment event.

Version:

27 March 2010

Author:

Christophe Lauret, Jason Harrop

Constructor Summary

CommentEvent(String comment)
Creates a new comment event.

Method Summary

boolean	equals(DiffXEvent e) Returns true if the event is a comment event.
boolean	equals(Object o) Invokes the DiffXEvent.equals(DiffXEvent) method if the specified object if not null and is an instance of DiffXEvent.
String	getComment() Returns the comment.
int	getWeight() Returns the weight of this event.
int	hashCode()
void	setWeight(int weight) Sets the weight of this event.
String	toString()
String	toXML() Returns a xml representation of the object of the implementing class.
StringBuffer	toXML(StringBuffer xml) Appends the XML representation of the object of the implementing class.
void	toXML(XMLWriter xml) Writes the XML representation of the implementing instance using the specified XMLWriter.

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.topologi.diffx.event.DiffXEvent

getWeight, setWeight

Methods inherited from interface com.topologi.diffx.xml.XMLFormattable

toXML

Constructor Detail

CommentEvent

public CommentEvent(String comment)
             throws NullPointerException

Creates a new comment event.

Parameters:

comment - the comment string.

Throws:

NullPointerException - if any of the argument is null.

Method Detail

getComment

public String getComment()

Returns the comment.

Returns:

the comment string.

hashCode

public int hashCode()

equals

public boolean equals(DiffXEvent e)

Returns true if the event is a comment event.

Specified by:

equals in interface DiffXEvent

Parameters:

e - The event to compare with this event.

Returns:

true if this event is equal to the specified event; false otherwise.

toString

public String toString()

Overrides:

toString in class Object

toXML

public void toXML(XMLWriter xml)
           throws IOException

Description copied from interface: XMLWritable

Writes the XML representation of the implementing instance using the specified XMLWriter.

Specified by:

toXML in interface XMLWritable

Parameters:

xml - The XMLWriter to use.

Throws:

IOException - IF an I/O exception occurs whilst writing.

toXML

public StringBuffer toXML(StringBuffer xml)

Description copied from interface: XMLFormattable

Appends the XML representation of the object of the implementing class.

Implementations must ensure that the returned string buffer is the same object as the specified string buffer.

Specified by:

toXML in interface XMLFormattable

Parameters:

xml - The string buffer to which the XML representation is appended to.

Returns:

The modified string buffer.

equals

public final boolean equals(Object o)

Invokes the DiffXEvent.equals(DiffXEvent) method if the specified object if not null and is an instance of DiffXEvent.

Overrides:

equals in class Object

Parameters:

o - The object to compare.

Returns:

true if the specified object is equal; false otherwise.

toXML

public String toXML()

Description copied from interface: XMLFormattable

Returns a xml representation of the object of the implementing class.

Most implementation should use the following code to ensure consistent data with the other toXML method:

return this.toXML(new StringBuffer()).toString();

Specified by:

toXML in interface XMLFormattable

Returns:

a XML representation of the object of the implementing class.

getWeight

public int getWeight()

Description copied from interface: DiffXEvent

Returns the weight of this event.

The default weight should be 1.

Specified by:

getWeight in interface DiffXEvent

Returns:

The weight of this event.

setWeight

public void setWeight(int weight)

Description copied from interface: DiffXEvent

Sets the weight of this event.

This method is intended for use by algorithms, optimisers and loaders in order to adjust the importance of an event.

Specified by:

setWeight in interface DiffXEvent

Parameters:

weight - The weight of this event.