From 86823682e32cbb6bf7030664dc3618a3bc242a8d Mon Sep 17 00:00:00 2001 From: "gu.martinm@gmail.com" Date: Wed, 2 Jul 2014 16:06:27 +0200 Subject: [PATCH] JdbcRowSet example --- .../src/main/java/de/sql/tests/RawJDBCExample.java | 95 ++++++++++++++++++++++ 1 file changed, 95 insertions(+) diff --git a/Allgemeines/JDBC/src/main/java/de/sql/tests/RawJDBCExample.java b/Allgemeines/JDBC/src/main/java/de/sql/tests/RawJDBCExample.java index 34c3d5b..3b5e119 100644 --- a/Allgemeines/JDBC/src/main/java/de/sql/tests/RawJDBCExample.java +++ b/Allgemeines/JDBC/src/main/java/de/sql/tests/RawJDBCExample.java @@ -9,9 +9,21 @@ import java.sql.SQLException; import java.sql.Statement; import java.sql.Types; +import javax.sql.RowSetEvent; +import javax.sql.RowSetListener; +import javax.sql.rowset.CachedRowSet; +import javax.sql.rowset.FilteredRowSet; +import javax.sql.rowset.JdbcRowSet; +import javax.sql.rowset.JoinRowSet; +import javax.sql.rowset.RowSetFactory; +import javax.sql.rowset.RowSetProvider; +import javax.sql.rowset.WebRowSet; + import org.slf4j.Logger; import org.slf4j.LoggerFactory; + + public class RawJDBCExample { private static final Logger logger = LoggerFactory.getLogger(RawJDBCExample.class); private static final String DB_URL = @@ -55,6 +67,12 @@ public class RawJDBCExample { callableStatement(connection); logger.info("Callable statement executed successfully"); + + // 6. Execute some query: JDBC rowset + logger.info("Execute JDBC rowset"); + JDBCrowSet(connection); + logger.info("JDBC rowset executed successfully"); + } finally { // It does not implement AutoCloseable connection.close(); @@ -157,6 +175,7 @@ public class RawJDBCExample { // Go ahead and execute the call to the stored procedure cstmt1.executeUpdate(); final String adCode = cstmt1.getString("AD_CODE"); + logger.info("AD_CODE: " + adCode); cstmt2.setInt("AD_ID", 666); cstmt2.setString("AD_DESCRIPTION", "My ad"); @@ -166,4 +185,80 @@ public class RawJDBCExample { cstmt2.executeUpdate(); } } + + private static void JDBCrowSet(final Connection connection) throws SQLException { + +// Java 1.6 way. With Java 1.8 IDE complains because JdbcRowSetImpl is not API :/ +// try (final JdbcRowSet jdbcRowSet = new JdbcRowSetImpl(connection)) +// { +// jdbcRowSet.setType(ResultSet.TYPE_SCROLL_INSENSITIVE); +// String queryString = "SELECT * FROM AD"; +// jdbcRowSet.setCommand(queryString); +// jdbcRowSet.execute(); +// // This could be a nice feature, I guess. +// jdbcRowSet.addRowSetListener(new ExampleListener()); +// +// while (jdbcRowSet.next()) { +// // Generating cursor Moved event +// logger.info("AD_ID: " + jdbcRowSet.getString(1)); +// logger.info("AD_CODE: " + jdbcRowSet.getString(2)); +// } +// } + + // Java > 1.6 + final RowSetFactory rowSetFactory = RowSetProvider.newFactory(); + try (final JdbcRowSet jdbcRowSet = rowSetFactory.createJdbcRowSet()) + { + // With Java > 1.6 there is no way of using some Connection if + // we do not use new JdbcRowSetImpl(Connection) :( + jdbcRowSet.setUrl(DB_URL); + jdbcRowSet.setUsername("root"); + jdbcRowSet.setPassword(""); + jdbcRowSet.setType(ResultSet.TYPE_SCROLL_INSENSITIVE); + jdbcRowSet.setCommand("SELECT * FROM AD"); + jdbcRowSet.execute(); + // This could be a nice feature (I guess) I can not find the same + // feature in the "traditional" ResultSet + jdbcRowSet.addRowSetListener(new ExampleListener()); + + while (jdbcRowSet.next()) { + // Generating cursor Moved event + logger.info("AD_ID: " + jdbcRowSet.getString(1)); + logger.info("AD_CODE: " + jdbcRowSet.getString(2)); + } + } + + + try (final CachedRowSet cachedRowSet = rowSetFactory.createCachedRowSet(); + final FilteredRowSet filteredRowSet = rowSetFactory.createFilteredRowSet(); + final JoinRowSet joinRowSet = rowSetFactory.createJoinRowSet(); + final WebRowSet webRowSet = rowSetFactory.createWebRowSet()) + { + // I do not know what they are all for :( + } + } + + /** + * For JdbcRowSet.addRowSetListener + */ + private static class ExampleListener implements RowSetListener { + + @Override + public void cursorMoved(final RowSetEvent event) { + logger.info("Cursor Moved Listener"); + logger.info(event.toString()); + } + + @Override + public void rowChanged(final RowSetEvent event) { + logger.info("Cursor Changed Listener"); + logger.info(event.toString()); + } + + @Override + public void rowSetChanged(final RowSetEvent event) { + logger.info("RowSet changed Listener"); + logger.info(event.toString()); + } + } } -- 2.1.4