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Commit605c1e6

Browse files
author
Dave Cramer
committed
cancel row updates sets values to null by Kris Jurka
1 parent06ec904 commit605c1e6

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2 files changed

+74
-17
lines changed

2 files changed

+74
-17
lines changed

‎src/interfaces/jdbc/org/postgresql/jdbc2/AbstractJdbc2ResultSet.java‎

Lines changed: 10 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -9,7 +9,7 @@
99
* Copyright (c) 2003, PostgreSQL Global Development Group
1010
*
1111
* IDENTIFICATION
12-
* $PostgreSQL: pgsql/src/interfaces/jdbc/org/postgresql/jdbc2/AbstractJdbc2ResultSet.java,v 1.27 2003/11/29 19:52:10 pgsql Exp $
12+
* $PostgreSQL: pgsql/src/interfaces/jdbc/org/postgresql/jdbc2/AbstractJdbc2ResultSet.java,v 1.28 2003/12/12 18:34:14 davec Exp $
1313
*
1414
*-------------------------------------------------------------------------
1515
*/
@@ -519,7 +519,7 @@ public synchronized void cancelRowUpdates()
519519
{
520520
doingUpdates =false;
521521

522-
clearRowBuffer();
522+
clearRowBuffer(true);
523523
}
524524
}
525525

@@ -662,7 +662,7 @@ public synchronized void insertRow()
662662
this_row =rowBuffer;
663663

664664
// need to clear this in case of another insert
665-
clearRowBuffer();
665+
clearRowBuffer(false);
666666

667667

668668
}
@@ -707,20 +707,25 @@ public synchronized void moveToInsertRow()
707707

708708

709709
// make sure the underlying data is null
710-
clearRowBuffer();
710+
clearRowBuffer(false);
711711

712712
onInsertRow =true;
713713
doingUpdates =false;
714714

715715
}
716716

717717

718-
privatesynchronizedvoidclearRowBuffer()
718+
privatesynchronizedvoidclearRowBuffer(booleancopyCurrentRow)
719719
throwsSQLException
720720
{
721721
// rowBuffer is the temporary storage for the row
722722
rowBuffer =newbyte[fields.length][];
723723

724+
// inserts want an empty array while updates want a copy of the current row
725+
if (copyCurrentRow) {
726+
System.arraycopy(this_row,0,rowBuffer,0,this_row.length);
727+
}
728+
724729
// clear the updateValues hashTable for the next set of updates
725730
updateValues.clear();
726731

‎src/interfaces/jdbc/org/postgresql/test/jdbc2/UpdateableResultTest.java‎

Lines changed: 64 additions & 12 deletions
Original file line numberDiff line numberDiff line change
@@ -15,25 +15,79 @@
1515

1616
publicclassUpdateableResultTestextendsTestCase
1717
{
18+
privateConnectioncon;
1819

1920
publicUpdateableResultTest(Stringname )
2021
{
2122
super(name );
2223
}
2324

25+
protectedvoidsetUp()throwsException
26+
{
27+
con =TestUtil.openDB();
28+
TestUtil.createTable(con,"updateable","id int primary key, name text, notselected text");
29+
TestUtil.createTable(con,"second","id1 int primary key, name1 text");
30+
31+
// put some dummy data into second
32+
Statementst2 =con.createStatement();
33+
st2.execute("insert into second values (1,'anyvalue' )");
34+
st2.close();
35+
36+
}
37+
38+
protectedvoidtearDown()throwsException
39+
{
40+
TestUtil.dropTable(con,"updateable");
41+
TestUtil.dropTable(con,"second");
42+
TestUtil.closeDB(con);
43+
}
44+
45+
publicvoidtestCancelRowUpdates()throwsException
46+
{
47+
Statementst =con.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE,ResultSet.CONCUR_UPDATABLE );
48+
ResultSetrs =st.executeQuery("select * from second");
49+
50+
// make sure we're dealing with the correct row.
51+
rs.first();
52+
assertEquals(1,rs.getInt(1));
53+
assertEquals("anyvalue",rs.getString(2));
54+
55+
// update, cancel and make sure nothings changed.
56+
rs.updateInt(1,99);
57+
rs.cancelRowUpdates();
58+
assertEquals(1,rs.getInt(1));
59+
assertEquals("anyvalue",rs.getString(2));
60+
61+
// real update
62+
rs.updateInt(1,999);
63+
rs.updateRow();
64+
assertEquals(999,rs.getInt(1));
65+
assertEquals("anyvalue",rs.getString(2));
66+
67+
// scroll some and make sure the update is still there
68+
rs.beforeFirst();
69+
rs.next();
70+
assertEquals(999,rs.getInt(1));
71+
assertEquals("anyvalue",rs.getString(2));
72+
73+
74+
// make sure the update got to the db and the driver isn't lying to us.
75+
rs.close();
76+
rs =st.executeQuery("select * from second");
77+
rs.first();
78+
assertEquals(999,rs.getInt(1));
79+
assertEquals("anyvalue",rs.getString(2));
80+
81+
rs.close();
82+
st.close();
83+
}
84+
85+
86+
2487
publicvoidtestUpdateable()
2588
{
2689
try
2790
{
28-
Connectioncon =TestUtil.openDB();
29-
TestUtil.createTable(con,"updateable","id int primary key, name text, notselected text");
30-
TestUtil.createTable(con,"second","id1 int primary key, name1 text");
31-
32-
// put some dummy data into second
33-
Statementst2 =con.createStatement();
34-
st2.execute("insert into second values (1,'anyvalue' )");
35-
st2.close();
36-
3791
Statementst =con.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE,ResultSet.CONCUR_UPDATABLE );
3892
ResultSetrs =st.executeQuery("select * from updateable");
3993
assertNotNull(rs );
@@ -123,12 +177,10 @@ public void testUpdateable()
123177

124178
st.close();
125179

126-
TestUtil.dropTable(con,"updateable" );
127-
TestUtil.dropTable(con,"second" );
128-
TestUtil.closeDB(con );
129180
}
130181
catch (Exceptionex)
131182
{
183+
ex.printStackTrace();
132184
fail(ex.getMessage());
133185
}
134186
}

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