jtulach@315: package org.apidesign.javamonitorflaws;
jtulach@315: 
jtulach@315: import java.beans.PropertyChangeListener;
jtulach@315: import java.beans.PropertyChangeSupport;
jtulach@315: 
jtulach@315: /**
jtulach@315:  *
jtulach@315:  * @author Jaroslav Tulach <jtulach@netbeans.org>
jtulach@315:  */
jtulach@317: // BEGIN: monitor.pitfalls.subclass
jtulach@319: public class MultiplyCache extends Cache<String,Integer>
jtulach@319: implements CacheTest.CacheToTest {
jtulach@315:     private PropertyChangeSupport pcs;
jtulach@315:     private int multiply;
jtulach@315:     public static final String PROP_MULTIPLY = "multiply";
jtulach@315: 
jtulach@315:     public synchronized int getMultiply() {
jtulach@315:         return multiply;
jtulach@315:     }
jtulach@315:     public synchronized void setMultiply(int multiply) {
jtulach@315:         int oldMultiply = this.multiply;
jtulach@315:         this.multiply = multiply;
jtulach@315:         pcs.firePropertyChange(PROP_MULTIPLY, oldMultiply, multiply);
jtulach@315:     }
jtulach@315: 
jtulach@318:     public synchronized void addPropertyChangeListener(
jtulach@318:         PropertyChangeListener listener
jtulach@318:     ) {
jtulach@315:         if (pcs == null) {
jtulach@315:             pcs = new PropertyChangeSupport(this);
jtulach@315:         }
jtulach@315:         pcs.addPropertyChangeListener(listener);
jtulach@315:     }
jtulach@318:     public synchronized void removePropertyChangeListener(
jtulach@318:         PropertyChangeListener listener
jtulach@318:     ) {
jtulach@315:         if (pcs != null) {
jtulach@315:             pcs.removePropertyChangeListener(listener);
jtulach@315:         }
jtulach@315:     }
jtulach@315: 
jtulach@315:     @Override
jtulach@315:     protected Integer createItem(String f) {
jtulach@319:         return f.length() * multiply;
jtulach@315:     }
jtulach@317: }
jtulach@317: // END: monitor.pitfalls.subclass
jtulach@315: 
jtulach@315: