com.topologi.diffx.event.impl
Class AttributeEventImpl

java.lang.Object
  com.topologi.diffx.event.impl.DiffXEventBase
      com.topologi.diffx.event.impl.AttributeEventImpl

All Implemented Interfaces:

AttributeEvent, DiffXEvent, XMLFormattable, XMLWritable

public final class AttributeEventImpl

extends com.topologi.diffx.event.impl.DiffXEventBase

implements AttributeEvent

A basic implementation of the attribute event.

This implementation is not namespace aware.

Version:

3 April 2005

Author:

Christophe Lauret, Jean-Baptiste Reure

Constructor Summary

AttributeEventImpl(String name, String value)
Creates a new attribute event.

Method Summary

boolean	equals(DiffXEvent e) Returns true if the event is a
boolean	equals(Object o) Invokes the DiffXEvent.equals(DiffXEvent) method if the specified object if not null and is an instance of DiffXEvent.
String	getName() Returns the local name of the attribute.
String	getURI() Always return null.
String	getValue() Returns the value of the attribute.
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

AttributeEventImpl

public AttributeEventImpl(String name,
                          String value)
                   throws NullPointerException

Creates a new attribute event.

Parameters:

name - The local name of the attribute.

value - The value of the attribute.

Throws:

NullPointerException - if any of the argument is null.

Method Detail

getName

public String getName()

Description copied from interface: AttributeEvent

Returns the local name of the attribute.

This method should never return null.

Specified by:

getName in interface AttributeEvent

Returns:

The local name of the attribute.

See Also:

AttributeEvent.getName()

getURI

public String getURI()

Always return null.

Specified by:

getURI in interface AttributeEvent

Returns:

The namespace URI the attribute belongs to or null.

See Also:

AttributeEvent.getURI()

getValue

public String getValue()

Description copied from interface: AttributeEvent

Returns the value of the attribute.

This method should never return null.

Specified by:

getValue in interface AttributeEvent

Returns:

The value of the attribute.

See Also:

AttributeEvent.getValue()

hashCode

public int hashCode()

See Also:

Object.hashCode()

equals

public boolean equals(DiffXEvent e)

Returns true if the event is a

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.

See Also:

DiffXEvent.equals(DiffXEvent)

toString

public String toString()

See Also:

Object.toString()

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.

See Also:

XMLWritable.toXML(com.topologi.diffx.xml.XMLWriter)

toXML

public StringBuffer toXML(StringBuffer xml)
                   throws NullPointerException

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.

Throws:

NullPointerException - if the specified character sequence is null.

See Also:

XMLWritable.toXML(com.topologi.diffx.xml.XMLWriter)

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.

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.

See Also:

XMLFormattable.toXML()

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.

See Also:

DiffXEvent.getWeight()

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.

See Also:

DiffXEvent.setWeight(int)