Pessoal, tem como eu criar um dataset buscando informações de um banco de dados do Fluig? tabela PROCESS_OBSERVATION

Dataset=>
function createDataset(fields, constraints, sortFields) {
    var newDataset = DatasetBuilder.newDataset();
    log.info("QUERY: " + myQuery);
    var dataSource = "/jdbc/dsHistoricoChamados";
    var ic = new javax.naming.InitialContext();
    var ds = ic.lookup(dataSource);
    var created = false;
    var myQuery = "select * from ML001459";
    try {
        var conn = ds.getConnection();
        var stmt = conn.createStatement();
        var rs = stmt.executeQuery(myQuery);
        var columnCount = rs.getMetaData().getColumnCount();
        while (rs.next()) {
            if (!created) {
                for (var i = 1; i <= columnCount; i++) {
                    newDataset.addColumn(rs.getMetaData().getColumnName(i));
                }
                created = true;
            }
            var Arr = new Array();
            for (var i = 1; i <= columnCount; i++) {
                var obj = rs.getObject(rs.getMetaData().getColumnName(i));
                if (null != obj) {
                    Arr[i - 1] = rs.getObject(rs.getMetaData().getColumnName(i)).toString();
                } else {
                    Arr[i - 1] = "null";
                }
            }
            newDataset.addRow(Arr);
        }
    } catch (e) {
        log.error("ERRO==============> " + e.message);
    } finally {
        if (stmt != null) {
            stmt.close();
        }
        if (conn != null) {
            conn.close();
        }
    }
    return newDataset;
}

Domain.xml ==>
<datasource jta="false" jndi-name="java:/jdbc/dsHistoricoChamados" pool-name="dsHistoricoChamados" enabled="true" use-java-context="false">
                        <connection-url>jdbc:mysql://localhost:3306/minhabase</connection-url>
                        <driver>mysqlDriver</driver>
                        <pool>
                            <min-pool-size>5</min-pool-size>
                            <max-pool-size>15</max-pool-size>
                        </pool>
                        <security>
                            <user-name>usuário do bd</user-name>
                            <password>senha</password>
                        </security>
                        <validation>
                            <valid-connection-checker class-name="org.jboss.jca.adapters.jdbc.extensions.mysql.MySQLValidConnectionChecker"/>
                            <validate-on-match>true</validate-on-match>
                            <background-validation>false</background-validation>
                        </validation>
                        <timeout>
                            <blocking-timeout-millis>30000</blocking-timeout-millis>
                        </timeout>
                        <statement>
                            <share-prepared-statements>false</share-prepared-statements>
                        </statement>
                    </datasource>