Metacat

/**

 *   '$Author$'

 *     '$Date$'

 * '$Revision$'

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; either version 2 of the License, or

 * (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

package edu.ucsb.nceas.metacat;

import java.sql.*;

import java.util.*;

  private Thread btThread = null;

  private Connection conn = null;

  /**

   * Constructor for this class.  finds all of the relations to a single xml

   * document and writes them to the database.  This includes transitive

   * relations.

    this.docid = docid;

    putRelations();

  /**

    //for each new relation r in xml_nodes

    //  put r into xml_relation

    //  compare r to each relation already in xml_relation

    //  if r isrelatedto a row in xml_relation

    //    add a new row to xml_relation that represents this new relation

      //DocumentImpl xmldoc = new DocumentImpl(conn);

      //xmldoc.getDocumentInfo(docid);

      // first delete the relations for this package document if any

      deleteRelations(docid);

      // put the new relations

      PreparedStatement pstmt = conn.prepareStatement(

      pstmt.execute();

      ResultSet rs = pstmt.getResultSet();

      boolean hasmorerows = rs.next();

        String object = rs.getString(3);

        URL subjectMurl = null;

        String objDocid = null;

        String objDoctype = null;

            subDocid = (String)subMurlParams.get("docid");

              DocumentImpl subDoc = new DocumentImpl(conn, subDocid);

            }

          }

          //assume this is just a docid not a url

        }

            objDocid = (String)objMurlParams.get("docid");

              DocumentImpl objDoc = new DocumentImpl(conn, objDocid);

            }

          }

          //assume this is just a docid

        }

        //into xml_relation

        StringBuffer insertStmt = new StringBuffer();

        insertStmt.append("subject, subdoctype, ");

        insertStmt.append(subDoctype).append("', '");

        insertStmt.append(relationship).append("', '");

        insertStmt.append(object).append("', '");

        insertStmt.append(objDoctype).append("')");

        hasmorerows = rs.next();

      }

      MetaCatUtil.debugMessage("Error in RelationHandler.run(): " +

                               e.getMessage());

      try {

        System.out.println("Error in RelationHandler.run(): " +

                           sqle.getMessage());

      }

  }

  /**

   * Deletes all of the relations with a docid of 'docid'.

   * @param docid the docid to delete.

   */

      PreparedStatement pstmt = conn.prepareStatement("delete from " +

      pstmt.execute();

                          e.getMessage());

      throw e;

  }