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("and bundle_id in ");
    sql.append("   (select bundle_id ");
    sql.append("    from bundle2community ");
    sql.append("    where community_id=?) ");


    QueryParser qp = new QueryParser(sql.toString());
    qp.addPreparedStmtElementDefinition(projectId);
    qp.addPreparedStmtElementDefinition(community.getCommunityId());


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

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    sql.append("and bundle_id in ");
    sql.append("   (select bundle_id ");
    sql.append("    from bundle2collection ");
    sql.append("    where collection_id=?) ");


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


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

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    sql.append("select * ");
    sql.append("from item_bundles ");
    sql.append("where bundle_id=? ");
    sql.append("and project_id=? ");


    QueryParser qp = new QueryParser(sql.toString());
    qp.addPreparedStmtElementDefinition(bundleId);
    qp.addPreparedStmtElementDefinition(projectId);


    try {
      Configuration.getConnectionPool().executeQuery(qp);
    } catch (SQLException e) {
      Logger.fatal("Couldn't execute query", e);
      throw new NoSuchBundleException(
          "A SQLException was the cause: " + e.getMessage());
    }


    if (qp.getResultCount() > 0) {
      return createObjectFromQueryParser(Bundle.class, qp);
    } else {
      throw new NoSuchBundleException("The requested bundle ID ("
          + bundleId + ") doesn't exist.");
    }

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


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


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


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

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   */
  private int getNextBundleId() throws NoSuchBundleException {
    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(
          "Bundle ID couldn't be retrieved b/c of SQLException",
          e);
      throw new NoSuchBundleException(

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


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


    try {
      if (!Configuration.getConnectionPool().executeInsertOrUpdate(qp)) {
        throw new NoSuchBundleException("Bundle "
            + bundle.getId() + " in project "

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    sql.append("and bundle_id not in ");
    sql.append(" (select bundle_id ");
    sql.append("  from item2bundle ");
    sql.append("  where bundle_id=?) ");


    QueryParser qp = new QueryParser(sql.toString());
    qp.addPreparedStmtElementDefinition(bundle.getBundleId());
    qp.addPreparedStmtElementDefinition(bundle.getProjectId());
    qp.addPreparedStmtElementDefinition(bundle.getBundleId());


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

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      sql.append("from bundle2collection ");
      sql.append("where bundle_id=? ");
      sql.append("and collection_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 bundle2community ");
        sql.append("(bundle_id, community_id) values (?, ?) ");
      } else if (parentType == ContentType.COLLECTION) {
        sql.append("insert into bundle2collection ");
        sql.append("(bundle_id, collection_id) values (?, ?) ");
      }


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


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

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    sql.append("where ((c.expires is null) or (c.expires>now())) ");
    sql.append("and c.project_id=? ");
    sql.append("and c.community_id=c2c.child_id ");
    sql.append("and c2c.parent_id=? ");


    QueryParser qp = new QueryParser(sql.toString());
    qp.addPreparedStmtElementDefinition(parent.getProjectId());
    qp.addPreparedStmtElementDefinition(parent.getCommunityId());


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

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    sql.append("and ((c.expires is null) or (c.expires>now())) ");
    sql.append("and c.community_id not in ");
    sql.append("   (select distinct(child_id) ");
    sql.append("    from community2community) ");


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


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

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

edu.uga.galileo.voci.db.dao.PSQLBundleDAO

edu.uga.galileo.voci.db.dao.PSQLCollectionDAO

edu.uga.galileo.voci.db.dao.PSQLCommunityDAO

edu.uga.galileo.voci.db.dao.PSQLHelperDAO

edu.uga.galileo.voci.db.dao.PSQLItemDAO

edu.uga.galileo.voci.db.dao.PSQLMetadataDAO

edu.uga.galileo.voci.db.dao.PSQLProjectDAO

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

edu.uga.galileo.voci.db.dao.PSQLSearchDAO

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