Examples of edu.uga.galileo.voci.db.QueryParser

edu.uga.galileo.voci.db.QueryParser
A business object used with the executeQuery and executeInsertOrUpdate methods in the ConnectionPoolFactory. The parser is initialized with information on column name and type for data to be retieved from the ResultSet, or, if excluded, it will try to build the element info itself from ResultSet metadata. If necessary, one must also provide definitions for populating the PreparedStatement. The object can then be used to retrieve results by column name as String, int, Date, or boolean types.

The QueryParser can optionally accept a Connection object that will be used by the {@link edu.uga.galileo.voci.db.ConnectionPool} instead of using the pool'sdefault connection handling. This is useful for instances where manipulation of the connection is required prior to making database calls. For example, to allow rollback during failure at any point in a series of database calls, a connection could be retrieved, have its autoCommit set to false, and the query parser could be re-used for repeated calls until the transaction's complete. At that point, getting the connection from the parser and committing is possible, and the connection could then be returned by calling code to the pool. @author Mark Durant @version 1.0

    sql.append("insert into collections ");
    sql.append("(collection_id, project_id, active, ");
    sql.append("status, created, expires) values ");
    sql.append("(?, ?, ?, ?, now(), ?) ");


    QueryParser qp = new QueryParser(sql.toString());
    qp.addPreparedStmtElementDefinition(collection.getCollectionId());
    qp.addPreparedStmtElementDefinition(collection.getProjectId());
    qp.addPreparedStmtElementDefinition(collection.isActive());
    qp.addPreparedStmtElementDefinition(QueryParserElement.INT, collection
        .getStatus() <= 0 ? null : collection.getStatus());
    qp.addPreparedStmtElementDefinition(QueryParserElement.TIMESTAMP,
        collection.getExpires());


    if (connection != null) {
      qp.setConnection(connection);
    }


    try {
      Configuration.getConnectionPool().executeInsertOrUpdate(qp);
    } catch (SQLException e) {

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    sql.append("update collections ");
    sql.append("set active=?, status=?, expires=? ");
    sql.append("where collection_id=? ");
    sql.append("and project_id=? ");


    QueryParser qp = new QueryParser(sql.toString());
    qp.addPreparedStmtElementDefinition(collection.isActive());
    qp.addPreparedStmtElementDefinition(QueryParserElement.INT, collection
        .getStatus() <= 0 ? null : collection.getStatus());
    qp.addPreparedStmtElementDefinition(QueryParserElement.TIMESTAMP,
        collection.getExpires());
    qp.addPreparedStmtElementDefinition(collection.getCollectionId());
    qp.addPreparedStmtElementDefinition(collection.getProjectId());


    try {
      if (!Configuration.getConnectionPool().executeInsertOrUpdate(qp)) {
        throw new NoSuchCollectionException("Collection "
            + collection.getId() + " in project "

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    sql.append("and collection_id not in ");
    sql.append(" (select collection_id ");
    sql.append("  from item2collection ");
    sql.append("  where collection_id=?) ");


    QueryParser qp = new QueryParser(sql.toString());
    qp.addPreparedStmtElementDefinition(collection.getCollectionId());
    qp.addPreparedStmtElementDefinition(collection.getProjectId());
    qp.addPreparedStmtElementDefinition(collection.getCollectionId());
    qp.addPreparedStmtElementDefinition(collection.getCollectionId());
    qp.addPreparedStmtElementDefinition(collection.getCollectionId());


    try {
      if (!Configuration.getConnectionPool().executeInsertOrUpdate(qp)) {
        throw new NoSuchCollectionException("Childless collection "
            + collection.getId() + " in project "

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   */
  private int getNextCollectionId() throws NoSuchCollectionException {
    StringBuffer sql = new StringBuffer();
    sql.append("select nextval('handle_id_seq') as nextVal ");


    QueryParser qp = new QueryParser(sql.toString());


    try {
      Configuration.getConnectionPool().executeQuery(qp);
      return qp.getResult(Integer.class, "nextVal");
    } catch (SQLException e) {
      Logger.error(
          "Collection ID couldn't be retrieved b/c of SQLException",
          e);
      throw new NoSuchCollectionException(

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      sql.append("from collection2collection ");
      sql.append("where child_id=? ");
      sql.append("and parent_id=? ");
    }


    QueryParser qp = new QueryParser(sql.toString());
    qp.addPreparedStmtElementDefinition(childId);
    qp.addPreparedStmtElementDefinition(parentId);
    if (connection != null) {
      qp.setConnection(connection);
    }


    int preInsertCheck = -1;
    try {
      Configuration.getConnectionPool().executeQuery(qp);
      preInsertCheck = qp.getResult(Integer.class, "theCount");
    } catch (DataTypeMismatchException e) {
      Logger.error("Couldn't create an int out of an integer "
          + "db result.  Shouldn't happen, but...", e);
    }


    if (preInsertCheck == 0) {
      sql = new StringBuffer();
      if (parentType == ContentType.COMMUNITY) {
        sql.append("insert into collection2community ");
        sql.append("(collection_id, community_id) values (?, ?) ");
      } else if (parentType == ContentType.COLLECTION) {
        sql.append("insert into collection2collection ");
        sql.append("(child_id, parent_id) values (?, ?) ");
      }


      qp.clearForNewSQL();
      qp.setSql(sql.toString());
      qp.addPreparedStmtElementDefinition(childId);
      qp.addPreparedStmtElementDefinition(parentId);


      Configuration.getConnectionPool().executeInsertOrUpdate(qp);
    }
  }

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    StringBuffer sql = new StringBuffer();
    sql.append("select parent_id ");
    sql.append("from collection2collection ");
    sql.append("where child_id=? ");


    QueryParser qp = new QueryParser(sql.toString());
    qp.addPreparedStmtElementDefinition(collectionId);


    Configuration.getConnectionPool().executeQuery(qp);
    return qp.getResults(Integer.class, "parent_id");
  }

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    sql.append("    from collection2collection) ");
    sql.append("and c.collection_id not in ");
    sql.append("   (select distinct(collection_id) ");
    sql.append("    from collection2community) ");


    QueryParser qp = new QueryParser(sql.toString());
    qp.addPreparedStmtElementDefinition(projectHandle);


    try {
      Configuration.getConnectionPool().executeQuery(qp);
      if (qp.getResultCount() == 0) {
        return null;
      } else {
        return createObjectsFromQueryParser(Collection.class, qp);
      }
    } catch (SQLException e) {

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    sql.append("and a.content_id=? ");
    sql.append("and a.user_id=u.user_id ");
    sql.append("and data_export!='{created}' ");
    sql.append("order by update_date desc ");


    QueryParser qp = new QueryParser(sql.toString());
    if (contentType != ContentType.USER) {
      qp.addPreparedStmtElementDefinition(projectId);
    }
    qp.addPreparedStmtElementDefinition(contentType.getValue());
    qp.addPreparedStmtElementDefinition(contentId);


    try {
      Configuration.getConnectionPool().executeQuery(qp);
      return createObjectsFromQueryParser(AuditLog.class, qp);
    } catch (SQLException e) {

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    }
    sql.append("and content_type=? ");
    sql.append("and content_id=? ");
    sql.append("and update_date=? ");


    QueryParser qp = new QueryParser(sql.toString());
    if (contentType != ContentType.USER) {
      qp.addPreparedStmtElementDefinition(projectId);
    }
    qp.addPreparedStmtElementDefinition(contentType.getValue());
    qp.addPreparedStmtElementDefinition(contentId);
    qp.addPreparedStmtElementDefinition(update);


    try {
      Configuration.getConnectionPool().executeQuery(qp);
      if (qp.getResultCount() < 1) {
        throw new NoSuchAuditLogRecordException(
            "No such record exists.");
      }
      AuditLog result = createObjectFromQueryParser(AuditLog.class, qp);
      // repopulate the next four bits from the method call

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    sql.append(" user_id, update_date, data_export) ");
    sql.append("values (?, ?, ?, ");
    sql.append(" (select user_id from users where user_name=?), ");
    sql.append("?, ?) ");


    QueryParser qp = new QueryParser(sql.toString());
    qp.addPreparedStmtElementDefinition(record.getProjectId());
    qp.addPreparedStmtElementDefinition(record.getContentType().getValue());
    qp.addPreparedStmtElementDefinition(record.getContentId());
    qp.addPreparedStmtElementDefinition(record.getUserName());
    qp.addPreparedStmtElementDefinition(record.getUpdateDate());
    qp.addPreparedStmtElementDefinition(record.getDataExport());


    try {
      Configuration.getConnectionPool().executeInsertOrUpdate(qp);
    } catch (SQLException e) {
      Logger.fatal("Couldn't execute SQL", e);

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edu.uga.galileo.voci.db.dao.PSQLAuditLogDAO

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edu.uga.galileo.voci.db.dao.PSQLRoleDAO

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