I am trying to figure out what is the difference between jsr169 and
jdbc3 which requires that we use the small platform jars in order to
build Derby's J2ME support. I have tried the following experiment on the
four source files which comprise our jsr169 support (the classnames
which end in "169"):
1) I made the 3 JDBC classes (the jsr169 versions of ResultSet,
CallableStatement, and PreparedStatement) extend our JDBC3 versions of
these classes.
2) Then I compiled Derby with my jsr169compile.classpath pointing at my
small device jars.
This compilation succeeded. This says to me that the optional small
device compilation is not going to catch situations where JDBC3 methods
leak into our jsr169 implementation.
I then ran a further experiment on top of these changes:
3) I changed jsr169compile.classpath to point at the jdk1.4 jars instead.
This compilation also succeeded. I am wondering what would break if we
simply compiled our J2ME support using the jdk1.4 compiler as described
above. I'm attaching the diff for (1) and (2). I'd be curious to learn
what happens when this patch is applied and the tests are run on the
small device platform.
Thanks,
-Rick
Index: java/engine/org/apache/derby/impl/jdbc/EmbedCallableStatement169.java
===================================================================
--- java/engine/org/apache/derby/impl/jdbc/EmbedCallableStatement169.java
(revision 647305)
+++ java/engine/org/apache/derby/impl/jdbc/EmbedCallableStatement169.java
(working copy)
@@ -38,7 +38,7 @@
*/
-public final class EmbedCallableStatement169 extends EmbedCallableStatement {
+public final class EmbedCallableStatement169 extends EmbedCallableStatement30 {
public EmbedCallableStatement169(EmbedConnection conn, String sql,
int resultSetType, int resultSetConcurrency,
int resultSetHoldability) throws SQLException {
Index: java/engine/org/apache/derby/impl/jdbc/EmbedPreparedStatement169.java
===================================================================
--- java/engine/org/apache/derby/impl/jdbc/EmbedPreparedStatement169.java
(revision 647305)
+++ java/engine/org/apache/derby/impl/jdbc/EmbedPreparedStatement169.java
(working copy)
@@ -38,7 +38,7 @@
*/
-public final class EmbedPreparedStatement169 extends EmbedPreparedStatement
+public final class EmbedPreparedStatement169 extends EmbedPreparedStatement30
{
public EmbedPreparedStatement169(EmbedConnection conn, String sql,
boolean forMetaData, int resultSetType, int
resultSetConcurrency,
Index: java/engine/org/apache/derby/impl/jdbc/EmbedResultSet169.java
===================================================================
--- java/engine/org/apache/derby/impl/jdbc/EmbedResultSet169.java
(revision 647305)
+++ java/engine/org/apache/derby/impl/jdbc/EmbedResultSet169.java
(working copy)
@@ -39,7 +39,7 @@
*/
-public final class EmbedResultSet169 extends EmbedResultSet
+public final class EmbedResultSet169 extends EmbedResultSet20
{
public EmbedResultSet169(EmbedConnection conn,
ResultSet resultsToWrap,
