org.nakedobjects.metamodel.commons.io
Class LazyInputStream

java.lang.Object
  java.io.InputStream
      org.nakedobjects.metamodel.commons.io.LazyInputStream

All Implemented Interfaces:

java.io.Closeable

public class LazyInputStream
extends java.io.InputStream

An input stream that reads from an underlying InputStream, deferring the interactions until needed.

This other stream is provided as needed by an LazyInputStream.InputStreamProvider so that the underlying stream is not eagerly loaded.

Nested Class Summary

static interface

LazyInputStream.InputStreamProvider An interface to be implemented by clients that wish to utilize LazyInputStreams.

Constructor Summary

LazyInputStream(LazyInputStream.InputStreamProvider provider)
Construct a new lazy stream based off the given provider.

Method Summary

int	available()
void	close()
boolean	equals(java.lang.Object obj)
int	hashCode()
void	mark(int readlimit)
boolean	markSupported()
int	read()
int	read(byte[] b)
int	read(byte[] b, int off, int len)
void	reset()
long	skip(long n)
java.lang.String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

LazyInputStream

public LazyInputStream(LazyInputStream.InputStreamProvider provider)

Construct a new lazy stream based off the given provider.

Parameters:

provider - the input stream provider. Must not be null.

Method Detail

close

public void close()
           throws java.io.IOException

Specified by:

close in interface java.io.Closeable

Overrides:

close in class java.io.InputStream

Throws:

java.io.IOException

available

public int available()
              throws java.io.IOException

Overrides:

available in class java.io.InputStream

Throws:

java.io.IOException

mark

public void mark(int readlimit)

Overrides:

mark in class java.io.InputStream

markSupported

public boolean markSupported()

Overrides:

markSupported in class java.io.InputStream

read

public int read()
         throws java.io.IOException

Specified by:

read in class java.io.InputStream

Throws:

java.io.IOException

read

public int read(byte[] b,
                int off,
                int len)
         throws java.io.IOException

Overrides:

read in class java.io.InputStream

Throws:

java.io.IOException

read

public int read(byte[] b)
         throws java.io.IOException

Overrides:

read in class java.io.InputStream

Throws:

java.io.IOException

skip

public long skip(long n)
          throws java.io.IOException

Overrides:

skip in class java.io.InputStream

Throws:

java.io.IOException

reset

public void reset()
           throws java.io.IOException

Overrides:

reset in class java.io.InputStream

Throws:

java.io.IOException

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object