Package com.twelvemonkeys.io

Class FileCacheSeekableStream.FileCache

    • Field Summary

      Fields 
      Modifier and Type Field Description
      private java.io.RandomAccessFile cacheFile  

    • Constructor Summary

      Constructors 
      Constructor Description
      FileCache​(java.io.File pFile)  

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      (package private) void close()  
      long getPosition()
      Returns the current cache read/write position.
      int read()
      Reads a single byte a the current read/write position.
      int read​(byte[] pBuffer, int pOffset, int pLength)
      Writes a series of bytes at the current read/write position.
      void seek​(long pPosition)
      Repositions the current cache read/write position to the given position.
      void write​(byte[] pBuffer, int pOffset, int pLength)
      Writes a series of bytes at the current read/write position.
      void write​(int pByte)
      Writes a single byte at the current read/write position.

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Field Detail

      • cacheFile

        private java.io.RandomAccessFile cacheFile

    • Constructor Detail

      • FileCache

        public FileCache​(java.io.File pFile)
          throws java.io.FileNotFoundException
        Throws:
        java.io.FileNotFoundException

    • Method Detail

      • write

        public void write​(int pByte)
           throws java.io.IOException
        Description copied from class: AbstractCachedSeekableStream.StreamCache
        Writes a single byte at the current read/write position. The read/write position will be increased by one.
        Specified by:
        write in class AbstractCachedSeekableStream.StreamCache
        Parameters:
        pByte - the byte value to write.
        Throws:
        java.io.IOException - if an I/O exception occurs in the cache backing mechanism.

      • write

        public void write​(byte[] pBuffer,
                  int pOffset,
                  int pLength)
           throws java.io.IOException
        Description copied from class: AbstractCachedSeekableStream.StreamCache
        Writes a series of bytes at the current read/write position. The read/write position will be increased by pLength.

        This implementation invokes AbstractCachedSeekableStream.StreamCache.write(int) pLength times. Subclasses may override this method for performance.

        Overrides:
        write in class AbstractCachedSeekableStream.StreamCache
        Parameters:
        pBuffer - the bytes to write.
        pOffset - the starting offset into the buffer.
        pLength - the number of bytes to write from the buffer.
        Throws:
        java.io.IOException - if an I/O exception occurs in the cache backing mechanism.

      • read

        public int read()
         throws java.io.IOException
        Description copied from class: AbstractCachedSeekableStream.StreamCache
        Reads a single byte a the current read/write position. The read/write position will be increased by one.
        Specified by:
        read in class AbstractCachedSeekableStream.StreamCache
        Returns:
        the value read, or -1 to indicate EOF.
        Throws:
        java.io.IOException - if an I/O exception occurs in the cache backing mechanism.

      • read

        public int read​(byte[] pBuffer,
                int pOffset,
                int pLength)
         throws java.io.IOException
        Description copied from class: AbstractCachedSeekableStream.StreamCache
        Writes a series of bytes at the current read/write position. The read/write position will be increased by pLength.

        This implementation invokes AbstractCachedSeekableStream.StreamCache.read() pLength times. Subclasses may override this method for performance.

        Overrides:
        read in class AbstractCachedSeekableStream.StreamCache
        Parameters:
        pBuffer - the bytes to write
        pOffset - the starting offset into the buffer.
        pLength - the number of bytes to write from the buffer.
        Returns:
        the number of bytes read, or -1 to indicate EOF.
        Throws:
        java.io.IOException - if an I/O exception occurs in the cache backing mechanism.

      • seek

        public void seek​(long pPosition)
          throws java.io.IOException
        Description copied from class: AbstractCachedSeekableStream.StreamCache
        Repositions the current cache read/write position to the given position.
        Specified by:
        seek in class AbstractCachedSeekableStream.StreamCache
        Parameters:
        pPosition - the new read/write position
        Throws:
        java.io.IOException - if an I/O exception occurs in the cache backing mechanism.