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Java Source Code / Java Documentation » Development » FastUtil » it.unimi.dsi.fastutil.io 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   java.io.InputStream
      it.unimi.dsi.fastutil.io.FastMultiByteArrayInputStream

FastMultiByteArrayInputStream
public class FastMultiByteArrayInputStream extends java.io.InputStream implements RepositionableStream(Code)
Simple, fast and repositionable byte array input stream that multiplexes its content among several arrays. This class is significantly slower than FastByteArrayInputStream , but it can hold 256 PiB of data. The relevant constructor is FastMultiByteArrayInputStream.FastMultiByteArrayInputStream(InputStream,long) , which fetches a stream and loads it into a sequence of byte arrays.
author:
   Sebastiano Vigna
author:
   Paolo Boldi
author:
   s


Field Summary
final public static  intSLICE_BITS
     The number of bits of an array slice index.
final public static  intSLICE_MASK
     The mask to retrieve a slice offset.
final public static  intSLICE_SIZE
     The maximum length of an array slice.
public  byte[][]array
     The array of arrays backing the input stream.
public  longlength
     The number of valid bytes in FastMultiByteArrayInputStream.array .

Constructor Summary
public  FastMultiByteArrayInputStream(InputStream is, long size)
     Creates a new multi-array input stream loading it from an input stream.
public  FastMultiByteArrayInputStream(FastMultiByteArrayInputStream is)
     Creates a new multi-array input stream sharing the backing arrays of another multi-array input stream.
public  FastMultiByteArrayInputStream(byte[] array)
     Creates a new multi-array input stream using a given array.

Method Summary
public  intavailable()
     Returns the number of bytes that can be read (or skipped over) from this input stream without blocking.
public  voidclose()
     Closing a fast byte array input stream has no effect.
public  voidmark(int dummy)
    
public  booleanmarkSupported()
    
public  longposition()
    
public  voidposition(long newPosition)
    
public  intread()
    
public  intread(byte[] b, int offset, int length)
    
public  voidreset()
    
public  longskip(long n)
    

Field Detail
SLICE_BITS
final public static int SLICE_BITS(Code)
The number of bits of an array slice index.



SLICE_MASK
final public static int SLICE_MASK(Code)
The mask to retrieve a slice offset.



SLICE_SIZE
final public static int SLICE_SIZE(Code)
The maximum length of an array slice.



array
public byte[][] array(Code)
The array of arrays backing the input stream.



length
public long length(Code)
The number of valid bytes in FastMultiByteArrayInputStream.array .




Constructor Detail
FastMultiByteArrayInputStream
public FastMultiByteArrayInputStream(InputStream is, long size) throws IOException(Code)
Creates a new multi-array input stream loading it from an input stream.
Parameters:
  is - the input stream that will fill the array.
Parameters:
  size - the number of bytes to be read from is.



FastMultiByteArrayInputStream
public FastMultiByteArrayInputStream(FastMultiByteArrayInputStream is)(Code)
Creates a new multi-array input stream sharing the backing arrays of another multi-array input stream.
Parameters:
  is - the multi-array input stream to replicate.



FastMultiByteArrayInputStream
public FastMultiByteArrayInputStream(byte[] array)(Code)
Creates a new multi-array input stream using a given array.
Parameters:
  array - the backing array.




Method Detail
available
public int available()(Code)
Returns the number of bytes that can be read (or skipped over) from this input stream without blocking.

Note that this number may be smaller than the number of bytes actually available from the stream if this number exceeds Integer.MAX_VALUE . the minimum among the number of available bytes and Integer.MAX_VALUE.




close
public void close()(Code)
Closing a fast byte array input stream has no effect.



mark
public void mark(int dummy)(Code)



markSupported
public boolean markSupported()(Code)



position
public long position()(Code)



position
public void position(long newPosition)(Code)



read
public int read()(Code)



read
public int read(byte[] b, int offset, int length)(Code)



reset
public void reset()(Code)



skip
public long skip(long n)(Code)



Methods inherited from java.io.InputStream
public int available() throws IOException(Code)(Java Doc)
public void close() throws IOException(Code)(Java Doc)
public synchronized void mark(int readlimit)(Code)(Java Doc)
public boolean markSupported()(Code)(Java Doc)
abstract public int read() throws IOException(Code)(Java Doc)
public int read(byte b) throws IOException(Code)(Java Doc)
public int read(byte b, int off, int len) throws IOException(Code)(Java Doc)
public synchronized void reset() throws IOException(Code)(Java Doc)
public long skip(long n) throws IOException(Code)(Java Doc)

Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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