Data Handler´Â ³×ÀÓ Çڵ鷯¸¦ È£ÃâÇÏ¿© Á÷·ÄÈµÈ µ¥ÀÌÅÍ¿¡¼ Business Object Á¤ÀÇÀÇ À̸§À» ÃßÃâÇÒ ¼ö ÀÖ½À´Ï´Ù. ÀÌ Å¸½ºÅ©´Â Data Handler È£ÃâÀÚ°¡ Á÷·ÄÈµÈ µ¥ÀÌÅͷΠä¿öÁú Business Object¸¦ Àü´ÞÇÏÁö ¾Ê´Â °æ¿ì, ¹®ÀÚ¿¿¡¼ Business Object·Î º¯È¯ÇÏ´Â °úÁ¤¿¡¼ ÇÊ¿äÇÕ´Ï´Ù. ÀÌ·¯ÇÑ °æ¿ì, Data Handler´Â Business Object¸¦ ä¿ì±â Àü¿¡ ¸ÕÀú Business Object¸¦ ÀÛ¼ºÇØ¾ß ÇÕ´Ï´Ù. Business Object¸¦ ÀÛ¼ºÇÏ·Á¸é, Data Handler°¡ ¿¬°üµÈ Business Object Á¤ÀÇÀÇ À̸§À» ¾Ë¾Æ¾ß ÇÕ´Ï´Ù. ÀÌ´Â Business Object À̸§À» È®º¸ÇÏ´Â ³×ÀÓ Çڵ鷯ÀÔ´Ï´Ù.
»ç¿ëÀÚ Á¤ÀÇ ³×ÀÓ Çڵ鷯¸¦ ÀÛ¼º ¹× ±¸ÇöÇϴ Ÿ½ºÅ©¿¡´Â ´ÙÀ½°ú °°Àº ÀÏ¹Ý ´Ü°è°¡ Æ÷ÇԵ˴ϴÙ.
»ç¿ëÀÚ Á¤ÀÇ ³×ÀÓ Çڵ鷯¸¦ ÀÛ¼ºÇÏ·Á¸é, name-handler ±âº» Ŭ·¡½º(NameHandler)¸¦ È®ÀåÇÏ¿© »ç¿ëÀÚ °íÀ¯ name-handler Ŭ·¡½º¸¦ ÀÛ¼ºÇϽʽÿÀ. NameHandler Ŭ·¡½º¿¡´Â Á÷·ÄÈµÈ µ¥ÀÌÅÍ¿¡¼ Business ObjectÀÇ À̸§À» ÃßÃâÇϱâ À§ÇÑ ¸Þ¼Òµå°¡ µé¾î ÀÖ½À´Ï´Ù. ÀÌ name-handler ±âº» Ŭ·¡½ºÀÇ ÆÐŰÁö´Â com.crossworlds.DataHandlers.NameHandlerÀÔ´Ï´Ù.
name-handler Ŭ·¡½º¸¦ °¡Á®¿À·Á¸é ´ÙÀ½ ´Ü°è¸¦ ¼öÇàÇϽʽÿÀ.
import
NameHandler Ŭ·¡½ºÀÇ Á¤ÀÇ´Â ´ÙÀ½°ú °°½À´Ï´Ù.
// Imports import java.lang.String; import java.io.Reader; import com.crossworlds.DataHandlers.Exceptions.MalformedDataException; public abstract class NameHandler { // Constructors public NameHandler() { } // Methods public abstract String getBOName(Reader serializedData, String boPrefix) throws MalformedDataException; } /* This method was introduced so that the NameHandler would have * a reference to the DataHandler. The DataHandler base calls this * method after it instantiated the NameHandler: * eg. nh = (NameHandler)Class.forName(className).newInstance(); * nh.setDataHandler(this); */ public final void setDataHandler( DataHandler dataHandler ) { dh = dataHandler; }
»ç¿ëÀÚÀÇ ³×ÀÓ Çڵ鷯¸¦ ÀÛ¼ºÇÏ·Á¸é, NameHandler Ãß»ó ±âº» Ŭ·¡½º¸¦ È®ÀåÇϽʽÿÀ.
NameHandler Ŭ·¡½º¸¦ È®ÀåÇÏ·Á¸é Á÷·ÄÈµÈ µ¥ÀÌÅ͸¦ Àоî ÇØ´ç µ¥ÀÌÅÍ¿Í ¿¬°üµÈ Business ObjectÀÇ À̸§À» ¸®ÅÏÇÏ´Â getBOName() ¸Þ¼Òµå¸¦ ±¸ÇöÇØ¾ß ÇÕ´Ï´Ù. ÀÌ ¸Þ¼ÒµåÀÇ ±¸¹®Àº ´ÙÀ½°ú °°½À´Ï´Ù.
public abstract String getBOName(Reader serializedData, String BOPrefix) throws MalformedDataException
¼³¸í:
Data Handler°¡ »ç¿ëÀÚ Á¤ÀÇ ³×ÀÓ Çڵ鷯¸¦ »ç¿ëÇϵµ·Ï ÇÏ·Á¸é, Meta Object ¼Ó¼ºÀÇ Default Value µî·Ï Á¤º¸¸¦ ¿ÏÀüÇÑ Å¬·¡½º À̸§À¸·Î ¼³Á¤ÇØ¾ß ÇÕ´Ï´Ù. ±×·¯¸é Data Handler´Â ·±Å¸ÀÓ ½Ã ±¸¼º ¿É¼Ç Áß Çϳª¿¡¼ Ŭ·¡½º À̸§À¸·Î È®º¸ÇÒ ¼ö ÀÖ½À´Ï´Ù. ±âº»ÀûÀ¸·Î, ÀÌ Meta Object ¼Ó¼ºÀ» NameHandlerClass¶ó°í ÇÕ´Ï´Ù.
XML ¹× EDI Data Handler ¸ðµÎ¿Í ¿¬°üµÈ ÇÏÀ§ Meta Object¿¡´Â ÀÌ ¼Ó¼ºÀÌ Æ÷ÇԵ˴ϴÙ. ÀÌ ¼Ó¼º¿¡ ´ëÇØ IBM Á¦°ø ±âº»°ªÀº ±âº» ³×ÀÓ Çڵ鷯 Ŭ·¡½ºÀÇ À̸§À» ÁöÁ¤ÇÕ´Ï´Ù. Data Handler°¡ »ç¿ëÀÚ Á¤ÀÇ ³×ÀÓ Çڵ鷯¸¦ »ç¿ëÇϵµ·Ï ÇÏ·Á¸é, È®ÀåÇÏ´Â Data Handler¿Í ¿¬°üµÈ ÇÏÀ§ Meta Object¿¡¼ NameHandlerClass ¼Ó¼ºÀÇ Default Value µî·Ï Á¤º¸¸¦ °»½ÅÇϵµ·Ï ÇϽʽÿÀ.