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package org.glassfish.web.deployment.descriptor;
import com.sun.enterprise.deployment.web.AppListenerDescriptor;
import org.glassfish.deployment.common.Descriptor;
/**
* Objects exhibiting this interface represent an event listener descriptor.
* This represents the <listener-class> XML element defined in the
* Servlet 2.3 spec.
* @author Vivek Nagar
*/
public class AppListenerDescriptorImpl extends Descriptor
implements AppListenerDescriptor
{
private String listenerClass;
private String displayName;
/** The default constructor.
*/
public AppListenerDescriptorImpl() {
}
/**
* Create an instance of the descriptor with the specified listener class.
* @param the listener class name.
*/
public AppListenerDescriptorImpl(String clz) {
this.listenerClass = clz;
}
/**
* Return the listener class.
* @return the listener class name or empty string if none.
*/
public String getListener() {
if (this.listenerClass == null) {
this.listenerClass = "";
}
return this.listenerClass;
}
/**
* Sets the listener class.
* @param the listener class name.
*/
public void setListener(String clz) {
this.listenerClass = clz;
}
/** set display name */
public void setDisplayName(String name) {
this.displayName = (name != null)? name : "";
}
/** get display name */
public String getDisplayName() {
String n = this.displayName;
if ((n == null) || n.equals("")) {
n = this.getName();
}
return n;
}
/**
* Test for equals
*/
public boolean equals(Object obj) {
return (obj instanceof AppListenerDescriptorImpl)?
this.getListener().equals(
((AppListenerDescriptorImpl)obj).getListener()) :
super.equals(obj);
}
public int hashCode() {
int result = 17;
result = 37*result + getListener().hashCode();
return result;
}
/**
* A formatted version of the state as a String.
*/
public void print(StringBuffer toStringBuffer) {
toStringBuffer.append("Listener Class ").append(this.getListener());
}
}