All Packages  Class Hierarchy  This Package  Previous  Next  Index

Class com.sun.java.swing.ProgressMonitorInputStream

java.lang.Object
   |
   +----java.io.InputStream
           |
           +----java.io.FilterInputStream
                   |
                   +----com.sun.java.swing.ProgressMonitorInputStream

public class ProgressMonitorInputStream
extends FilterInputStream
Monitors the progress of reading from some InputStream. Normally invoked in roughly this form:
 InputStream in = new BufferedInputStream(
            new ProgressMonitorInputStream(
                     parentComponent,
                    "Reading "+fileName,
                     new FileInputStream(fileName)));
 

This creates a progress monitor to monitor the progress of reading the input stream. If it's taking a while, a ProgressDialog will be popped up to inform the user. If the user hits the Cancel button an InterruptedIOException will be thrown on the next read. All the right cleanup is done when the stream is closed.

See Also:
ProgressMonitor, JOptionPane

Constructor Index

 o ProgressMonitorInputStream(Component, Object, InputStream)

Method Index

 o close()
 o getProgressMonitor()
 o read()
 o read(byte[])
 o read(byte[], int, int)
 o reset()
 o skip(long)

Constructors

 o ProgressMonitorInputStream
 public ProgressMonitorInputStream(Component parentComponent,
                                   Object message,
                                   InputStream in)
Parameters:
message - Descriptive text to be placed in the dialog box if one is popped up.
parentComponent - The component triggering the operation being monitored.
in - The input stream to be monitored.

Methods

 o getProgressMonitor
 public ProgressMonitor getProgressMonitor()
 o read
 public int read() throws IOException
Overrides:
read in class FilterInputStream
 o read
 public int read(byte b[]) throws IOException
Overrides:
read in class FilterInputStream
 o read
 public int read(byte b[],
                 int off,
                 int len) throws IOException
Overrides:
read in class FilterInputStream
 o skip
 public long skip(long n) throws IOException
Overrides:
skip in class FilterInputStream
 o close
 public void close() throws IOException
Overrides:
close in class FilterInputStream
 o reset
 public synchronized void reset() throws IOException
Overrides:
reset in class FilterInputStream

All Packages  Class Hierarchy  This Package  Previous  Next  Index