File	Doc	Category	Size	Date	Package
NumberFixedLength.java	API Doc	Jaudiotagger 2.0.4	5452	Wed Jun 08 12:05:40 BST 2011	org.jaudiotagger.tag.datatype

NumberFixedLength

• java.lang.Object
  • AbstractDataType

Fields Summary

Constructors Summary
public NumberFixedLength(String identifier, org.jaudiotagger.tag.id3.AbstractTagFrameBody frameBody, int size) Creates a new ObjectNumberFixedLength datatype. param identifier param frameBody param size the number of significant places that the number is held to throws IllegalArgumentException super(identifier, frameBody); if (size < 0) { throw new IllegalArgumentException("Length is less than zero: " + size); } this.size = size;
public NumberFixedLength(NumberFixedLength copy) super(copy); this.size = copy.size;

Methods Summary
public boolean	equals(java.lang.Object obj) param obj return true if obj equivalent to this if (!(obj instanceof NumberFixedLength)) { return false; } NumberFixedLength object = (NumberFixedLength) obj; return this.size == object.size && super.equals(obj);
public int	getSize() Return size return the size of this number return size;
public void	readByteArray(byte[] arr, int offset) Read the number from the byte array param arr param offset throws NullPointerException throws IndexOutOfBoundsException if (arr == null) { throw new NullPointerException("Byte array is null"); } if ((offset < 0) || (offset >= arr.length)) { throw new InvalidDataTypeException("Offset to byte array is out of bounds: offset = " + offset + ", array.length = " + arr.length); } if(offset + size > arr.length) { throw new InvalidDataTypeException("Offset plus size to byte array is out of bounds: offset = " + offset + ", size = "+size +" + arr.length "+ arr.length ); } long lvalue = 0; for (int i = offset; i < (offset + size); i++) { lvalue <<= 8; lvalue += (arr[i] & 0xff); } value = lvalue; logger.config("Read NumberFixedlength:" + value);
public void	setSize(int size) Set Size in Bytes of this Object param size in bytes that this number will be held as if (size > 0) { this.size = size; }
public void	setValue(java.lang.Object value) if (!(value instanceof Number)) { throw new IllegalArgumentException("Invalid value type for NumberFixedLength:" + value.getClass()); } super.setValue(value);
public java.lang.String	toString() return String representation of this datatype if (value == null) { return ""; } else { return value.toString(); }
public byte[]	writeByteArray() Write data to byte array return the datatype converted to a byte array byte[] arr; arr = new byte[size]; if (value != null) { //Convert value to long long temp = ID3Tags.getWholeNumber(value); for (int i = size - 1; i >= 0; i--) { arr[i] = (byte) (temp & 0xFF); temp >>= 8; } } return arr;