com.topologi.diffx.event.impl.DiffXEventBase Maven / Gradle / Ivy
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package com.topologi.diffx.event.impl;
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import com.topologi.diffx.event.DiffXEvent;
import com.topologi.diffx.xml.esc.XMLEscape;
import com.topologi.diffx.xml.esc.XMLEscapeUTF8;
/**
* A base class for DiffX events.
*
* This class is purely provided for convenience and consistency, it is best,
* althouhg not strictly required, that most DiffXEvent implementations
* extend this class.
*
* @author Christophe Lauret
* @version 3 February 2005
*/
abstract class DiffXEventBase implements DiffXEvent {
/**
* For use by the events to escape XML chars.
*/
static final XMLEscape ESC = XMLEscapeUTF8.UTF8_ESCAPE;
/**
*
*/
int weight = 1;
/**
* @see java.lang.Object#hashCode()
*/
// public abstract int hashCode();
/**
* Implementation must implement this method.
*
* @see DiffXEvent#equals(DiffXEvent)
*/
public abstract boolean equals(DiffXEvent e);
/**
* Invokes the {@link DiffXEvent#equals(DiffXEvent)} method if the specified
* object if not null and is an instance of {@link DiffXEvent}.
*
* @param o The object to compare.
*
* @return true if the specified object is equal;
* false otherwise.
*/
public final boolean equals(Object o) {
if (o == null) return false;
if (!(o instanceof DiffXEvent)) return false;
return equals((DiffXEvent)o);
}
/**
* @see com.topologi.diffx.xml.XMLFormattable#toXML()
*/
public String toXML() {
return this.toXML(new StringBuffer()).toString();
}
/**
* @see DiffXEvent#getWeight()
*/
public int getWeight() {
return this.weight;
}
/**
* @see DiffXEvent#setWeight(int)
*/
public void setWeight(int weight) {
this.weight = weight;
}
}