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2006-09
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2006-09-09 Sat

¢£ Jakarta commons digester

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log4j ¤È¤«¡¤java.util.logging ¤È¤«¤òƳÆþ¤·¤ÆÀßÄê¥Õ¥¡¥¤¥ë¤ò½ñ¤¯¤Î¤¬Èó¾ï¤ËÌÌÅݤʤΤǡ¤¥³¥Þ¥ó¥É¥é¥¤¥ó¤Ç»ØÄꤹ¤ëÊýË¡¡¥·ë¹½Ãµ¤¹¤Î¤Ë¼ê´Ö¼è¤Ã¤¿¤Î¤Ç¥á¥â¡¥
¼Â¹Ô»þ¤Ë

$ java -Dorg.apache.commons.logging.simplelog.defaultlog=trace ¼Â¹Ô¤¹¤ë¥¯¥é¥¹Ì¾


¤È¤¹¤ë¡¥¤³¤¦¤¹¤ë¤È trace ¥ì¥Ù¥ë¤Ç¥í¥°¤¬½ÐÎϤµ¤ì¤ë¤è¤¦¤Ë¤Ê¤ë¡¥

¤Þ¤¿¡¤ÏäÏÊѤï¤Ã¤Æ¡¤call-param-rule ¤Ç¥¹¥¿¥Ã¥¯¤ËÀÑ¤Þ¤ì¤Æ¤¤¤ë¥ª¥Ö¥¸¥§¥¯¥È¤ò call-method-rule ¤Î°ú¿ô¤Ë¤·¤¿¤¤¤È¤­¤¬¤¢¤ë¡¥²¿¤« List ¤Ê¤É¤Î¥ª¥Ö¥¸¥§¥¯¥È¤òºî¤Ã¤Æ¡¤¤½¤ì¤ò¤¢¤ë¥á¥½¥Ã¥É¤Î°ú¿ô¤ËÅϤ·¤¿¤¤¤Ê¤É¡¥¤½¤Î¤È¤­¤Ë¤Ï call-param-rule ¥¿¥°¤Î from-stack °À­¤ò»È¤¦¤ÈÎɤ¤¤é¤·¤¤¡¥

  <call-method-rule methodname="methodName" paramcount="1" />
  <object-create-rule classname="java.util.ArrayList" />
  <call-param-rule paramnumber="1" from-stack="true" />



¤³¤ì¤Ç

List<String> list = new ArrayList<String>();
list.add("aaa");
list.add("bbb");
list.add("ccc");
list.add("ddd");
object.callMethod(list);


¤ß¤¿¤¤¤Ê½èÍý¤ò°Ê²¼¤Î¤è¤¦¤Ë½ñ¤±¤ë¡¥

¥Ç¡¼¥¿¤Î xml

<data>
  <values>
    <value>aaa</value>
    <value>bbb</value>
    <value>ccc</value>
    <value>ddd</value>
  </values>
</data>


digester-rule.xml

  <pattern value="data/values">
  <object-create-rule classname="java.util.ArrayList" />
  <call-method-rule methodname="callMethod" paramtypes="java.util.List" />
  <call-param-rule  paramnumber="0" from-stack="true" />
  <pattern value="value">
    <call-method-rule methodname="add" paramcount="1" />
    <call-param-rule  paramnumber="0" />
  </pattern>
</pattern>



Digester ¤ÏÊØÍø¤ÇÌÌÇò¤¤¤ó¤À¤±¤É¡¤¥Ç¥Ð¥Ã¥°¤¬»à¤Ì¤Û¤É¿É¤¤¡¥
¤Þ¤¿¡¤¸Ä¿ÍŪ¤Ë¤Ï XML ¤È¥ª¥Ö¥¸¥§¥¯¥È¤Î¥Þ¥Ã¥Ô¥ó¥°¥ë¡¼¥ë¤Ï Java ¸À¸ì¤È¤·¤Æ½ñ¤¯¤Î¤Ç¤Ï¤Ê¤¯¡¤¤½¤ì¤À¤±¤òÊ̤Υե¡¥¤¥ë¤Ë½ñ¤¯¤³¤È(¤¹¤Ê¤ï¤Á¥Þ¥Ã¥Ô¥ó¥°¥ë¡¼¥ë¤ò xml ¤Ç½ñ¤¯)¤¬Ë¾¤Þ¤·¤¤¤È»×¤Ã¤Æ¤¤¤ë¤Î¤À¤¬¡¤¸¡º÷¤·¤Æ¸«¤Ä¤«¤ë¤Î¤ÏÉáÄ̤˥롼¥ë¥ª¥Ö¥¸¥§¥¯¥È¤òºî¤Ã¤Æ Digester ¥ª¥Ö¥¸¥§¥¯¥È¤Ë addRule ¤¹¤ë¤À¤±¤Î¥µ¥ó¥×¥ë¤¬¤Û¤È¤ó¤É¤Ê¤Î¤Ç¡¤º¤¤ë¡¥

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ºÇ½ª¹¹¿·»þ´Ö: 2008-09-04 19:19

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