ij.io.RandomAccessStream

All Implemented Interfaces:: Closeable, AutoCloseable

public final class RandomAccessStream extends InputStream

This class uses a memory cache to allow seeking within an InputStream. Based on the JAI MemoryCacheSeekableStream class. Can also be constructed from a RandomAccessFile, which uses less memory since the memory cache is not required.

Constructor Summary

Constructors

Constructor

Description

RandomAccessStream(InputStream inputstream)

Constructs a RandomAccessStream from an InputStream.

RandomAccessStream(RandomAccessFile ras)

Constructs a RandomAccessStream from an RandomAccessFile.
Method Summary

Modifier and Type

Method

Description

void

close()

int

getFilePointer()

long

getLongFilePointer()

int

read()

int

read(byte[] bytes, int off, int len)

final double

readDouble()

final float

readFloat()

final void

readFully(byte[] bytes)

final void

readFully(byte[] bytes, int len)

final int

readInt()

final long

readLong()

final short

readShort()

void

seek(int loc)

void

seek(long loc)

Methods inherited from class java.io.InputStream
available, mark, markSupported, nullInputStream, read, readAllBytes, readNBytes, readNBytes, reset, skip, skipNBytes, transferTo

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details
- RandomAccessStream
  
  public RandomAccessStream(InputStream inputstream)
  
  Constructs a RandomAccessStream from an InputStream. Seeking backwards is supported using a memory cache.
- RandomAccessStream
  
  public RandomAccessStream(RandomAccessFile ras)
  
  Constructs a RandomAccessStream from an RandomAccessFile.
Method Details
- getFilePointer
  
  public int getFilePointer() throws IOException
  
  Throws:
  
  IOException
- getLongFilePointer
  
  public long getLongFilePointer() throws IOException
  
  Throws:
  
  IOException
- read
  
  public int read() throws IOException
  
  Specified by:
  
  read in class InputStream
  
  Throws:
  
  IOException
- read
  
  public int read(byte[] bytes, int off, int len) throws IOException
  
  Overrides:
  
  read in class InputStream
  
  Throws:
  
  IOException
- readFully
  
  public final void readFully(byte[] bytes) throws IOException
  
  Throws:
  
  IOException
- readFully
  
  public final void readFully(byte[] bytes, int len) throws IOException
  
  Throws:
  
  IOException
- seek
  
  public void seek(long loc) throws IOException
  
  Throws:
  
  IOException
- seek
  
  public void seek(int loc) throws IOException
  
  Throws:
  
  IOException
- readInt
  
  public final int readInt() throws IOException
  
  Throws:
  
  IOException
- readLong
  
  public final long readLong() throws IOException
  
  Throws:
  
  IOException
- readDouble
  
  public final double readDouble() throws IOException
  
  Throws:
  
  IOException
- readShort
  
  public final short readShort() throws IOException
  
  Throws:
  
  IOException
- readFloat
  
  public final float readFloat() throws IOException
  
  Throws:
  
  IOException
- close
  
  public void close() throws IOException
  
  Specified by:
  
  close in interface AutoCloseable
  
  Specified by:
  
  close in interface Closeable
  
  Overrides:
  
  close in class InputStream
  
  Throws:
  
  IOException

Class RandomAccessStream

Constructor Summary

Method Summary

Methods inherited from class java.io.InputStream

Methods inherited from class java.lang.Object

Constructor Details

RandomAccessStream

RandomAccessStream

Method Details

getFilePointer

getLongFilePointer

read

read

readFully

readFully

seek

seek

readInt

readLong

readDouble

readShort

readFloat

close