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org.apache.derby.iapi.services.io
Class LimitInputStream  

java.lang.Object
  java.io.InputStream
      java.io.FilterInputStream
          org.apache.derby.iapi.services.io.LimitInputStream

All Implemented Interfaces:

java.io.Closeable, Limit

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public class LimitInputStream

extends java.io.FilterInputStream

implements Limit

An abstract InputStream that provides abstract methods to limit the range that can be read from the stream.

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Field Summary
protected  boolean	limitInPlace
protected  int	remainingBytes

 

Fields inherited from class java.io.FilterInputStream

in

 

Constructor Summary

LimitInputStream(java.io.InputStream in)           Construct a LimitInputStream and call the clearLimit() method.

 

Method Summary
int	available()           Calls the in.available() method.
int	clearLimit()           Clear any limit set by setLimit.
int	read()           Calls the in.read() method
int	read(byte[] b, int off, int len)           Calls the in.read(byte[], int, int) method.
void	setInput(java.io.InputStream in)
void	setLimit(int length)           Set the limit of the stream that can be read.
long	skip(long count)           Calls the in.skip(long) method

 

Methods inherited from class java.io.FilterInputStream

close, mark, markSupported, read, reset

 

Methods inherited from class java.lang.Object

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

 

Field Detail

remainingBytes

protected int remainingBytes

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limitInPlace

protected boolean limitInPlace

Constructor Detail

LimitInputStream

public LimitInputStream(java.io.InputStream in)

Construct a LimitInputStream and call the clearLimit() method.

Method Detail

read

public int read()
         throws java.io.IOException

Description copied from class: java.io.FilterInputStream

Calls the in.read() method

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read

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

Description copied from class: java.io.FilterInputStream

Calls the in.read(byte[], int, int) method.

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skip

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

Description copied from class: java.io.FilterInputStream

Calls the in.skip(long) method

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available

public int available()
              throws java.io.IOException

Description copied from class: java.io.FilterInputStream

Calls the in.available() method.

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setLimit

public void setLimit(int length)

Set the limit of the stream that can be read. After this call up to and including length bytes can be read from or skipped in the stream. Any attempt to read more than length bytes will result in an EOFException

Specified by:

setLimit in interface Limit

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clearLimit

public int clearLimit()

Clear any limit set by setLimit. After this call no limit checking will be made on any read until a setLimit()) call is made.

Specified by:

clearLimit in interface Limit

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setInput

public void setInput(java.io.InputStream in)

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