All Packages  This Package  Class Hierarchy  Class Search  Index

Class calypso.util.CacheInputStream

java.lang.Object
   |
   +----java.io.InputStream
           |
           +----calypso.util.CacheInputStream

This is the private class that is used for reading data out of the file underlying a CacheOutputStream. This is used only when a file is being used for cacheing, not when the memory buffer is being used. Mainly this just passes the various InputStream methods along to the underlying file stream; but it adds one other thing, which is that as soon as the underlying file stream hits eof, the underlying file is deleted (by calling CacheOutputStream.discardBuffer().)

class  CacheInputStream
     extends java.io.InputStream
{
          // Fields 2
     protected InputStream stream;
     protected CacheOutputStream stream_cache;

          // Constructors 1
     CacheInputStream(CacheOutputStream, InputStream);

          // Methods 11
     public int available() throws IOException;
     public void close() throws IOException;
     protected synchronized void discardBackingStore();
     protected void finalize();
     public void mark(int);
     public boolean markSupported();
     public int read() throws IOException;
     public int read(byte[]) throws IOException;
     public int read(byte[], int, int) throws IOException;
     public void reset() throws IOException;
     public long skip(long) throws IOException;
}

• stream_cache

   protected CacheOutputStream stream_cache

• stream

   protected InputStream stream

• CacheInputStream

   CacheInputStream(CacheOutputStream sc, 
                    InputStream s) 

• available

   public int available()  throws IOException

Overrides:

available in class InputStream

• close

   public void close()  throws IOException

Overrides:

close in class InputStream

• mark

   public void mark(int i) 

Overrides:

mark in class InputStream

• markSupported

   public boolean markSupported() 

Overrides:

markSupported in class InputStream

• read

   public int read()  throws IOException

Overrides:

read in class InputStream

• read

   public int read(byte[] b)  throws IOException

Overrides:

read in class InputStream

• read

   public int read(byte[] b, 
                   int start, 
                   int length)  throws IOException

Overrides:

read in class InputStream

• reset

   public void reset()  throws IOException

Overrides:

reset in class InputStream

• skip

   public long skip(long i)  throws IOException

Overrides:

skip in class InputStream

• discardBackingStore

   protected synchronized void discardBackingStore() 

• finalize

   protected void finalize() 

Overrides:

finalize in class Object

All Packages  This Package  Class Hierarchy  Class Search  Index