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참고자료 :
http://cafe.naver.com/deve.cafe?iframe_url=/ArticleRead.nhn%3Farticleid=947


 
내가 해결한 방식 :

composite-id 를 이용한경우 해당 변수에 접근하기위해 . 을 이용한다.
예) useSeqType.useSeq

hbm.xml 에 정의된 테이블 정보
<class name="kr.or.copyright.freeuse.domain.donation.DonationUseUser" table="donation_use_user">
  <comment>정보</comment>
  <composite-id name="useSeqType" class="kr.or.copyright.freeuse.domain.donation.DonationUseCsUseSeqAtUserType">
   <key-property name="useSeq" column="use_seq" type="integer" />
   <key-property name="userType" column="user_type" type="integer" />
  </composite-id>
 
  <property name="userName" column="user_name" type="string" />
  <property name="userNationality" column="user_nationality" type="string" />
  <property name="userJumin" column="user_jumin" type="string" />
  <property name="userTel" column="user_tel" type="string" />
  <property name="userEmail" column="user_email" type="string" />
  <property name="userZip" column="user_zip" type="string" />
  <property name="userAddr1" column="user_addr1" type="string" />
  <property name="userAddr2" column="user_addr2" type="string" />
  <property name="createId" column="create_id" type="string" />
  <property name="createDate" column="create_date" type="timestamp" />
 </class>


protected String selectDonationRegManageQuery(String searchType, String key, String keyword, int currentPage, int countPerPage, boolean isTotal){
  String andQuery = "";
 
  StringBuffer sb = new StringBuffer();
  if(searchType.equals("donation")){
   if(key.equals("TITLE")){ // 제목검색
    andQuery = " AND a.donationTitle LIKE '%"+keyword+"%'";
   }else if(key.equals("DONATOR")){ // 검색
    andQuery = " AND c.userName LIKE '%"+keyword+"%'";
   }
   logger.debug("selectDonationRegManageQuery - 1");
   if(isTotal == true)
   {
    sb.append("SELECT COUNT(*)AS CNT ");
    logger.debug("selectDonationRegManageQuery - 2");
   }else{
    logger.debug("selectDonationRegManageQuery - 3");
    sb.append("SELECT a.donationTitle ");
    sb.append(" , b.userName ");
    sb.append(" , (SELECT branchName FROM WritingBranch WHERE branchSeq = a.branchL)AS branchName ");
    sb.append(" , a.createDate ");
    sb.append(" , a.contents ");
   }
   logger.debug("selectDonationRegManageQuery - 4");
   sb.append(" FROM DonationRegWriting a, DonationReg b, CommonCode c ");
   sb.append(" WHERE a.donationWritingSeq = b.donationRegSeq ");
   sb.append(" AND a.donationStatus = c.statusCode ");
   sb.append(" AND c.workCode = '02' ");
   sb.append(" AND c.statusCode = '07' ");
   sb.append(andQuery);
  }else if(searchType.equals("use")){
   if(key.equals("DONATOR")){
    andQuery = " AND d.userName LIKE '%"+keyword+"%'";
   }else if(key.equals("ISSUE_DATE")){
    andQuery = " AND d.createDate LIKE '%"+keyword+"%'";
   }
   if(isTotal == true)
   {
    sb.append("SELECT COUNT(*)AS CNT ");
   }else{
    sb.append("SELECT c.donationWritingSeq ");
    sb.append(" , c.donationTitle ");
    sb.append(" , d.userName ");
    sb.append(" , b.userName ");
    sb.append(" , a.useReason ");
    sb.append(" , e.createDate ");
   }
   sb.append(" FROM DonationUseApp a, DonationUseUser b ");
   sb.append(" , DonationRegWriting c, DonationReg d ");
   sb.append(" , DonationPermission e ");
   sb.append(" WHERE a.userId = e.userId ");
   sb.append(" AND a.useSeq = b.useSeqType.useSeq ");
   sb.append(" AND a.useSeq = e.useSeq ");
   sb.append(" AND a.donationSeq = e.donationNo ");
   sb.append(" AND a.donationSeq = c.donationWritingSeq ");
   sb.append(" AND c.donationWritingSeq = d.donationRegSeq");
   sb.append(andQuery);
  }else if(searchType.equals("donPrint")){
   if(key.equals("DONATOR")){
    andQuery = " AND b.userName LIKE '%"+keyword+"%'";
   }else if(key.equals("ISSUE_DATE")){
    andQuery = " AND c.printDate LIKE '%"+keyword+"%'";
   }
   if(isTotal == true)
   {
    sb.append("SELECT COUNT(*)AS CNT ");
   }else{
    sb.append("SELECT c.printDate ");
    sb.append(" , a.donationTitle ");
    sb.append(" , b.userName ");
    sb.append(" , c.donationCode ");
    sb.append(" , a.createDate ");
    sb.append(" , c.userId ");
   }
   sb.append(" FROM DonationRegWriting a, DonationReg b ");
   sb.append(" , DonationPrint c ");
   sb.append(" WHERE a.userId = c.userId ");
   sb.append(" AND a.donationRegSeq = b.donationRegSeq");
   sb.append(" AND a.donationWritingSeq = c.donationSeq");
   sb.append(andQuery);
  }else if(searchType.equals("usePrint")){
   if(key.equals("USER_NAME")){
    andQuery = " AND d.userName LIKE '%"+keyword+"%'";
   }else if(key.equals("ISSUE_DATE")){
    andQuery = " AND c.printDate LIKE '%"+keyword+"%'";
   }
   if(isTotal == true)
   {
    sb.append("SELECT COUNT(*)AS CNT ");
   }else{
    sb.append("SELECT a.donationWritingSeq ");
    sb.append(" , c.printDate ");
    sb.append(" , a.donationTitle ");
    sb.append(" , d.userName ");
    sb.append(" , e.useReason ");
    sb.append(" , c.donationCode ");
    sb.append(" , f.createDate ");
    sb.append(" , c.userId ");
   }
   sb.append(" FROM DonationRegWriting a, DonationReg b ");
   sb.append(" , DonationPrint c, DonationUseUser d ");
   sb.append(" , DonationUseApp e, DonationPermission f ");
   sb.append(" WHERE a.userId = c.userId ");
   sb.append(" AND a.donationRegSeq = b.donationRegSeq ");
   sb.append(" AND a.donationWritingSeq = c.donationSeq ");
   sb.append(" AND d.useSeqType.useSeq = e.useSeq ");
   sb.append(" AND e.useSeq = f.useSeq ");
   sb.append(" AND a.donationWritingSeq = e.donationSeq ");
   sb.append(" AND a.donationWritingSeq = f.donationNo");
   sb.append(andQuery);
  }
  logger.debug("### selectDonationRegManageQuery : " + sb.toString());
  return sb.toString();
 }