printermbean.java

java2高级教程大学教程的配套光盘源码

// Fig. 24.3: PrinterMBean.java
// This interface specifies the methods that will be implemented
// by Printer, which will function as an MBean.

// deitel package
package com.deitel.advjhtp1.jmx.PrinterManagement;

public interface PrinterMBean {

   // is it printing?
   public Boolean isPrinting();
    
   // is it online?
   public Boolean isOnline();

   // is paper jammed?
   public Boolean isPaperJam();

   // returns paper amount in tray
   public Integer getPaperTray();

   // returns ink level in toner cartridge
   public Integer getToner();
   
   // returns ID of print job that is currently printing
   public String getCurrentPrintJob();

   // returns array of all queued up print jobs
   public String [] getPendingPrintJobs(); 

   // sets availability status of printer
   public void setOnline( Boolean online );

   // fills up paper tray again with paper
   public void replenishPaperTray();

   // cancel pending print jobs
   public void cancelPendingPrintJobs();

   // start printing process
   public void startPrinting();
}


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