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## org.apache.poi.util
Class IntegerField

    java.lang.Object
      org.apache.poi.util.IntegerField

All Implemented Interfaces:
  FixedField

public class IntegerField
extends java.lang.Object
implements FixedField

representation of an integer (32-bit) field at a fixed location within a byte array

Author:
  Marc Johnson (mjohnson at apache dot org

Constructor Summary
`IntegerField(int offset)` construct the IntegerField with its offset into its containing byte array
`IntegerField(int offset, byte[] data)` Construct the IntegerField with its offset into its containing byte array and initialize its value from its byte array
`IntegerField(int offset, int value)` construct the IntegerField with its offset into its containing byte array and initialize its value
`IntegerField(int offset, int value, byte[] data)` construct the IntegerField with its offset into its containing byte array, initialize its value, and write the value to a byte array

Method Summary
`int` | `get()` get the IntegerField's current value
`void` | `readFromBytes(byte[] data)` set the value from its offset into an array of bytes
`void` | `readFromStream(java.io.InputStream stream)` set the value from an InputStream
`void` | `set(int value)` set the IntegerField's current value
`void` | `set(int value, byte[] data)` set the IntegerField's current value and write it to a byte array
`java.lang.String` | `toString()` return the value as a String
`void` | `writeToBytes(byte[] data)` write the value out to an array of bytes at the appropriate offset

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

Constructor Detail

### IntegerField

    public IntegerField(int offset)
                 throws java.lang.ArrayIndexOutOfBoundsException

  construct the IntegerField with its offset into its containing byte array

Parameters:
  `offset` - of the field within its byte array
Throws:
  `java.lang.ArrayIndexOutOfBoundsException` - if the offset is negative

### IntegerField

    public IntegerField(int offset,
                        int value)
                 throws java.lang.ArrayIndexOutOfBoundsException

  construct the IntegerField with its offset into its containing byte array and initialize its value

Parameters:
  `offset` - of the field within its byte array
  `value` - the initial value
Throws:
  `java.lang.ArrayIndexOutOfBoundsException` - if the offset is negative

### IntegerField

    public IntegerField(int offset,
                        byte[] data)
                 throws java.lang.ArrayIndexOutOfBoundsException

  Construct the IntegerField with its offset into its containing byte array and initialize its value from its byte array

Parameters:
  `offset` - of the field within its byte array
  `data` - the byte array to read the value from
Throws:
  `java.lang.ArrayIndexOutOfBoundsException` - if the offset is not within the range of 0..(data.length - 1)

### IntegerField

    public IntegerField(int offset,
                        int value,
                        byte[] data)
                 throws java.lang.ArrayIndexOutOfBoundsException

  construct the IntegerField with its offset into its containing byte array, initialize its value, and write the value to a byte array

Parameters:
  `offset` - of the field within its byte array
  `value` - the initial value
  `data` - the byte array to write the value to
Throws:
  `java.lang.ArrayIndexOutOfBoundsException` - if the offset is negative or too large

Method Detail

### get

    public int get()

  get the IntegerField's current value

  Returns:
    current value

### set

    public void set(int value)

  set the IntegerField's current value

  Parameters:
    `value` - to be set

### set

    public void set(int value,
                    byte[] data)
             throws java.lang.ArrayIndexOutOfBoundsException

  set the IntegerField's current value and write it to a byte array

  Parameters:
    `value` - to be set
    `data` - the byte array to write the value to
  Throws:
    `java.lang.ArrayIndexOutOfBoundsException` - if the offset is too large

### readFromBytes

    public void readFromBytes(byte[] data)
                       throws java.lang.ArrayIndexOutOfBoundsException

  set the value from its offset into an array of bytes

  Specified by:
    `readFromBytes` in interface `FixedField`
  Parameters:
    `data` - the byte array from which the value is to be read
  Throws:
    `java.lang.ArrayIndexOutOfBoundsException` - if the offset is too large

### readFromStream

    public void readFromStream(java.io.InputStream stream)
                        throws java.io.IOException,
                               LittleEndian.BufferUnderrunException

  set the value from an InputStream

  Specified by:
    `readFromStream` in interface `FixedField`
  Parameters:
    `stream` - the InputStream from which the value is to be read
  Throws:
    `BufferUnderrunException` - if there is not enough data available from the InputStream
    `java.io.IOException` - if an IOException is thrown from reading the InputStream
    `LittleEndian.BufferUnderrunException`

### writeToBytes

    public void writeToBytes(byte[] data)
                      throws java.lang.ArrayIndexOutOfBoundsException

  write the value out to an array of bytes at the appropriate offset

  Specified by:
    `writeToBytes` in interface `FixedField`
  Parameters:
    `data` - the array of bytes to which the value is to be written
  Throws:
    `java.lang.ArrayIndexOutOfBoundsException` - if the offset is too large

### toString

    public java.lang.String toString()

  return the value as a String

  Specified by:
    `toString` in interface `FixedField`
  Returns:
    the value as a String

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Copyright © 2003 Apache Software Foundation.