1 package org.apache.poi.hssf.record; 2 3 public interface CustomField 4 extends Cloneable 5 { 6 /** 7 * @return The size of this field in bytes. This operation is not valid 8 * until after the call to <code>fillField()</code> 9 */ 10 int getSize(); 11 12 /** 13 * Populates this fields data from the byte array passed in. 14 * @param data raw data 15 * @param size size of data 16 * @param offset of the record's data (provided a big array of the file) 17 * @return the number of bytes read. 18 */ 19 int fillField(byte [] data, short size, int offset); 20 21 /** 22 * Appends the string representation of this field to the supplied 23 * StringBuffer. 24 * 25 * @param str The string buffer to append to. 26 */ 27 void toString(StringBuffer str); 28 29 /** 30 * Converts this field to it's byte array form. 31 * @param offset The offset into the byte array to start writing to. 32 * @param data The data array to write to. 33 * @return The number of bytes written. 34 */ 35 int serializeField(int offset, byte[] data); 36 37 38 } 39