org.apache.poi.util.FixedField Maven / Gradle / Ivy
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(the "License"); you may not use this file except in compliance with
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package org.apache.poi.util;
import org.apache.poi.util.LittleEndian.BufferUnderrunException;
import java.io.*;
/**
* behavior of a field at a fixed location within a byte array
*
* @author Marc Johnson (mjohnson at apache dot org
*/
public interface FixedField
{
/**
* set the value from its offset into an array of bytes
*
* @param data the byte array from which the value is to be read
*
* @exception ArrayIndexOutOfBoundsException if the offset is out
* of the array's valid index range
*/
public void readFromBytes(byte [] data)
throws ArrayIndexOutOfBoundsException;
/**
* set the value from an InputStream
*
* @param stream the InputStream from which the value is to be
* read
*
* @exception BufferUnderrunException if there is not enough data
* available from the InputStream
* @exception IOException if an IOException is thrown from reading
* the InputStream
*/
public void readFromStream(InputStream stream)
throws IOException, BufferUnderrunException;
/**
* write the value out to an array of bytes at the appropriate
* offset
*
* @param data the array of bytes to which the value is to be
* written
*
* @exception ArrayIndexOutOfBoundsException if the offset is out
* of the array's valid index range
*/
public void writeToBytes(byte [] data)
throws ArrayIndexOutOfBoundsException;
/**
* return the value as a String
*
* @return the value as a String
*/
public String toString();
} // end public interface FixedField