ADO.NETはResultSetのサポートを提供していません。
http://www.cubrid.org/?mid=forum&category=195532&document_srl=358924
using System.Data;
using CUBRID.Data.CUBRIDClient;
using System.Data.Common;
using System;
namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
string ConnectionString = "server=localhost;database=demodb;port=30000;user=dba;password=123456";
DataTable dt = new DataTable();
DataSet ds = new DataSet();
CUBRIDConnection con = new CUBRIDConnection(ConnectionString);
CUBRIDCommand com = new CUBRIDCommand();
com.CommandType = CommandType.Text; //Important ADO.NET driver crash using call convention
com.Connection = con;
com.CommandText = "select rset();";
CUBRIDParameter pan = new CUBRIDParameter();
con.Open();
DbDataReader reader = com.ExecuteReader();
CustomAdapter da = new CustomAdapter();
da.FillFromReader(dt, reader);
con.Close();
DataRow fila = dt.Rows[0];
Console.WriteLine(fila[0].ToString());
Console.ReadKey();
}
}
public class CustomAdapter : System.Data.Common.DbDataAdapter
{
public int FillFromReader(DataTable dataTable, IDataReader dataReader)
{
return this.Fill(dataTable, dataReader);
}
protected override System.Data.Common.RowUpdatedEventArgs CreateRowUpdatedEvent(DataRow a, IDbCommand b, StatementType c, System.Data.Common.DataTableMapping d)
{
return (System.Data.Common.RowUpdatedEventArgs)new EventArgs();
}
protected override System.Data.Common.RowUpdatingEventArgs CreateRowUpdatingEvent(DataRow a, IDbCommand b, StatementType c, System.Data.Common.DataTableMapping d)
{
return (System.Data.Common.RowUpdatingEventArgs)new EventArgs();
}
protected override void OnRowUpdated(System.Data.Common.RowUpdatedEventArgs value)
{
}
protected override void OnRowUpdating(System.Data.Common.RowUpdatingEventArgs value)
{
}
}
javaクラス
import java.sql.*;
import cubrid.jdbc.driver.*;
import java.sql.Connection;
import java.sql.Statement;
import java.sql.Driver;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.transform.*;
import javax.xml.transform.stream.*;
import javax.xml.transform.dom.*;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
public class JavaSP3 {
public static String TResultSet(){
ResultSet rs = null;
Statement stmt = null;
String sql;
try {
Class.forName("cubrid.jdbc.driver.CUBRIDDriver");
Connection con = DriverManager.getConnection("jdbc:default:connection:");
((CUBRIDConnection)con).setCharset("euc_kr");
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder =factory.newDocumentBuilder();
Document doc = builder.newDocument();
Element results = doc.createElement("Results");
doc.appendChild(results);
sql = "select * from athlete";
stmt=con.createStatement();
rs = stmt.executeQuery(sql);
ResultSetMetaData rsmd = rs.getMetaData();
int colCount = rsmd.getColumnCount();
while (rs.next()) {
Element row = doc.createElement("Row");
results.appendChild(row);
for (int ii = 1; ii <= colCount; ii++) {
String columnName = rsmd.getColumnName(ii);
Object value = rs.getObject(ii);
Element node = doc.createElement(columnName);
node.appendChild(doc.createTextNode(value.toString()));
row.appendChild(node);
}
}
String valor = getDocumentAsXml(doc);
return valor;
}
catch (Exception e)
{
e.printStackTrace();
}
return null;
}
public static String getDocumentAsXml(Document doc)
throws TransformerConfigurationException, TransformerException {
DOMSource domSource = new DOMSource(doc);
TransformerFactory tf = TransformerFactory.newInstance();
Transformer transformer = tf.newTransformer();
//transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION,"yes");
transformer.setOutputProperty(OutputKeys.METHOD, "xml");
transformer.setOutputProperty(OutputKeys.ENCODING,"ISO-8859-1");
transformer.setOutputProperty
("{http://xml.apache.org/xslt}indent-amount", "4");
transformer.setOutputProperty(OutputKeys.INDENT, "yes");
java.io.StringWriter sw = new java.io.StringWriter();
StreamResult sr = new StreamResult(sw);
transformer.transform(domSource, sr);
return sw.toString();
}
}
Cubrid関数
CREATE FUNCTION "rset"() RETURN STRING
AS LANGUAGE JAVA
NAME 'JavaSP3.TResultSet() return java.lang.String'
これにより、ADO.NETを使用してCUBRIDのJavaストアドプロシージャからデータを取得できます。