protected DataSource getDataSource() {
if (ds == null) {
EmbeddedXADataSource ds = new EmbeddedXADataSource();
ds.setCreateDatabase("create");
ds.setDatabaseName("target/testdb");
ds.setUser("sa");
ds.setPassword("");
this.ds = ds;
}
return ds;
}
private void checkXAHoldability() {
System.out.println("START XA HOLDABILITY TEST");
try {
EmbeddedXADataSource dscsx = new EmbeddedXADataSource();
dscsx.setDatabaseName("wombat");
XAConnection xac = dscsx.getXAConnection("fred", "wilma");
XAResource xr = xac.getXAResource();
Xid xid = getXid(25, (byte) 21, (byte) 01);
Connection conn1 = xac.getConnection();
System.out.println(
"By default, autocommit is " + conn1.getAutoCommit() + " for a connection");
System.out.println("Default holdability for a connection is HOLD_CURSORS_OVER_COMMIT");
System.out.println(
"CONNECTION(not in xa transaction yet) HOLDABILITY "
+ (conn1.getHoldability() == ResultSet.HOLD_CURSORS_OVER_COMMIT));
// start a global transaction and default holdability and autocommit will be switched to match
// Derby XA restrictions
xr.start(xid, XAResource.TMNOFLAGS);
System.out.println(
"Notice that autocommit now is "
+ conn1.getAutoCommit()
+ " for connection because it is part of the global transaction");
System.out.println(
"Notice that connection's holdability at this point is CLOSE_CURSORS_AT_COMMIT because it is part of the global transaction");
System.out.println(
"CONNECTION(in xa transaction) HOLDABILITY "
+ (conn1.getHoldability() == ResultSet.HOLD_CURSORS_OVER_COMMIT));
xr.end(xid, XAResource.TMSUCCESS);
conn1.commit();
conn1.close();
xid = getXid(27, (byte) 21, (byte) 01);
xr.start(xid, XAResource.TMNOFLAGS);
conn1 = xac.getConnection();
System.out.println(
"CONNECTION(in xa transaction) HOLDABILITY "
+ (conn1.getHoldability() == ResultSet.HOLD_CURSORS_OVER_COMMIT));
System.out.println(
"Autocommit on Connection inside global transaction has been set correctly to "
+ conn1.getAutoCommit());
xr.end(xid, XAResource.TMSUCCESS);
conn1.rollback();
Connection conn = xac.getConnection();
conn.setAutoCommit(false);
conn.setHoldability(ResultSet.CLOSE_CURSORS_AT_COMMIT);
System.out.println(
"CONNECTION(non-xa) HOLDABILITY "
+ (conn.getHoldability() == ResultSet.HOLD_CURSORS_OVER_COMMIT));
Statement s = conn.createStatement();
System.out.println(
"STATEMENT HOLDABILITY "
+ (s.getResultSetHoldability() == ResultSet.HOLD_CURSORS_OVER_COMMIT));
s.executeUpdate("create table hold_30 (id int not null primary key, b char(30))");
s.executeUpdate("insert into hold_30 values (1,'init2'), (2, 'init3'), (3,'init3')");
s.executeUpdate("insert into hold_30 values (4,'init4'), (5, 'init5'), (6,'init6')");
s.executeUpdate("insert into hold_30 values (7,'init7'), (8, 'init8'), (9,'init9')");
System.out.println(
"STATEMENT HOLDABILITY "
+ (s.getResultSetHoldability() == ResultSet.HOLD_CURSORS_OVER_COMMIT));
Statement sh =
conn.createStatement(
ResultSet.TYPE_FORWARD_ONLY,
ResultSet.CONCUR_READ_ONLY,
ResultSet.HOLD_CURSORS_OVER_COMMIT);
PreparedStatement psh =
conn.prepareStatement(
"select id from hold_30 for update",
ResultSet.TYPE_FORWARD_ONLY,
ResultSet.CONCUR_READ_ONLY,
ResultSet.HOLD_CURSORS_OVER_COMMIT);
CallableStatement csh =
conn.prepareCall(
"select id from hold_30 for update",
ResultSet.TYPE_FORWARD_ONLY,
ResultSet.CONCUR_READ_ONLY,
ResultSet.HOLD_CURSORS_OVER_COMMIT);
System.out.println(
"STATEMENT HOLDABILITY "
+ (sh.getResultSetHoldability() == ResultSet.HOLD_CURSORS_OVER_COMMIT));
System.out.println(
"PREPARED STATEMENT HOLDABILITY "
+ (psh.getResultSetHoldability() == ResultSet.HOLD_CURSORS_OVER_COMMIT));
System.out.println(
"CALLABLE STATEMENT HOLDABILITY "
+ (csh.getResultSetHoldability() == ResultSet.HOLD_CURSORS_OVER_COMMIT));
ResultSet rsh = sh.executeQuery("select id from hold_30 for update");
rsh.next();
System.out.println("H@1 id " + rsh.getInt(1));
rsh.next();
System.out.println("H@2 id " + rsh.getInt(1));
conn.commit();
rsh.next();
System.out.println("H@3 id " + rsh.getInt(1));
conn.commit();
xid = getXid(23, (byte) 21, (byte) 01);
xr.start(xid, XAResource.TMNOFLAGS);
Statement stmtInsideGlobalTransaction = conn.createStatement();
PreparedStatement prepstmtInsideGlobalTransaction =
conn.prepareStatement("select id from hold_30");
CallableStatement callablestmtInsideGlobalTransaction =
conn.prepareCall("select id from hold_30");
System.out.println(
"CONNECTION(xa) HOLDABILITY "
+ (conn.getHoldability() == ResultSet.HOLD_CURSORS_OVER_COMMIT));
System.out.println(
"STATEMENT(this one was created with holdability false, outside the global transaction. Check it's holdability inside global transaction) HOLDABILITY "
+ (s.getResultSetHoldability() == ResultSet.HOLD_CURSORS_OVER_COMMIT));
System.out.println(
"STATEMENT(this one was created with holdability true, outside the global transaction. Check it's holdability inside global transaction) HOLDABILITY "
+ (sh.getResultSetHoldability() == ResultSet.HOLD_CURSORS_OVER_COMMIT));
System.out.println(
"STATEMENT(this one was created with default holdability inside this global transaction. Check it's holdability) HOLDABILITY "
+ (stmtInsideGlobalTransaction.getResultSetHoldability()
== ResultSet.HOLD_CURSORS_OVER_COMMIT));
System.out.println(
"PREPAREDSTATEMENT(this one was created with default holdability inside this global transaction. Check it's holdability) HOLDABILITY "
+ (prepstmtInsideGlobalTransaction.getResultSetHoldability()
== ResultSet.HOLD_CURSORS_OVER_COMMIT));
System.out.println(
"CALLABLESTATEMENT(this one was created with default holdability inside this global transaction. Check it's holdability) HOLDABILITY "
+ (callablestmtInsideGlobalTransaction.getResultSetHoldability()
== ResultSet.HOLD_CURSORS_OVER_COMMIT));
ResultSet rsx = s.executeQuery("select id from hold_30 for update");
rsx.next();
System.out.println("X@1 id " + rsx.getInt(1));
rsx.next();
System.out.println("X@2 id " + rsx.getInt(1));
xr.end(xid, XAResource.TMSUCCESS);
// result set should not be useable, since it is part of a detached
// XAConnection
try {
rsx.next();
System.out.println("FAIL - rsx's connection not active id " + rsx.getInt(1));
} catch (SQLException sqle) {
System.out.println("Expected SQLException " + sqle.getMessage());
}
// result set should not be useable, it should have been closed by the xa start.
try {
rsh.next();
System.out.println("FAIL - rsh's should be closed " + rsx.getInt(1));
} catch (SQLException sqle) {
System.out.println("Expected SQLException " + sqle.getMessage());
}
System.out.println("resume XA transaction and keep using rs");
xr.start(xid, XAResource.TMJOIN);
Statement stmtAfterGlobalTransactionResume = conn.createStatement();
PreparedStatement prepstmtAfterGlobalTransactionResume =
conn.prepareStatement("select id from hold_30");
CallableStatement callablestmtAfterGlobalTransactionResume =
conn.prepareCall("select id from hold_30");
System.out.println("Check holdability of various jdbc objects after resuming XA transaction");
System.out.println(
"CONNECTION(xa) HOLDABILITY "
+ (conn.getHoldability() == ResultSet.HOLD_CURSORS_OVER_COMMIT));
System.out.println(
"STATEMENT(this one was created with holdability false, outside the global transaction. Check it's holdability inside global transaction) HOLDABILITY "
+ (s.getResultSetHoldability() == ResultSet.HOLD_CURSORS_OVER_COMMIT));
System.out.println(
"STATEMENT(this one was created with holdability true, outside the global transaction. Check it's holdability inside global transaction) HOLDABILITY "
+ (sh.getResultSetHoldability() == ResultSet.HOLD_CURSORS_OVER_COMMIT));
System.out.println(
"STATEMENT(this one was created with default holdability inside the global transaction when it was first started. Check it's holdability) HOLDABILITY "
+ (stmtInsideGlobalTransaction.getResultSetHoldability()
== ResultSet.HOLD_CURSORS_OVER_COMMIT));
System.out.println(
"PREPAREDSTATEMENT(this one was created with default holdability inside the global transaction when it was first started. Check it's holdability) HOLDABILITY "
+ (prepstmtInsideGlobalTransaction.getResultSetHoldability()
== ResultSet.HOLD_CURSORS_OVER_COMMIT));
System.out.println(
"CALLABLESTATEMENT(this one was created with default holdability inside the global transaction when it was first started. Check it's holdability) HOLDABILITY "
+ (callablestmtInsideGlobalTransaction.getResultSetHoldability()
== ResultSet.HOLD_CURSORS_OVER_COMMIT));
System.out.println(
"STATEMENT(this one was created with default holdability after the global transaction was resumed. Check it's holdability) HOLDABILITY "
+ (stmtAfterGlobalTransactionResume.getResultSetHoldability()
== ResultSet.HOLD_CURSORS_OVER_COMMIT));
System.out.println(
"PREPAREDSTATEMENT(this one was created with default holdability after the global transaction was resumed. Check it's holdability) HOLDABILITY "
+ (prepstmtAfterGlobalTransactionResume.getResultSetHoldability()
== ResultSet.HOLD_CURSORS_OVER_COMMIT));
System.out.println(
"CALLABLESTATEMENT(this one was created with default holdability after the global transaction was resumed. Check it's holdability) HOLDABILITY "
+ (callablestmtAfterGlobalTransactionResume.getResultSetHoldability()
== ResultSet.HOLD_CURSORS_OVER_COMMIT));
rsx.next();
System.out.println("X@3 id " + rsx.getInt(1));
xr.end(xid, XAResource.TMSUCCESS);
if (xr.prepare(xid) != XAResource.XA_RDONLY) xr.commit(xid, false);
// try again once the xa transaction has been committed.
try {
rsx.next();
System.out.println("FAIL - rsx's connection not active id (B)" + rsx.getInt(1));
} catch (SQLException sqle) {
System.out.println("Expected SQLException " + sqle.getMessage());
}
try {
rsh.next();
System.out.println("FAIL - rsh's should be closed (B) " + rsx.getInt(1));
} catch (SQLException sqle) {
System.out.println("Expected SQLException " + sqle.getMessage());
}
System.out.println("Set connection to hold ");
conn.setHoldability(ResultSet.HOLD_CURSORS_OVER_COMMIT);
System.out.println(
"CONNECTION(held) HOLDABILITY "
+ (conn.getHoldability() == ResultSet.HOLD_CURSORS_OVER_COMMIT));
xid = getXid(24, (byte) 21, (byte) 01);
xr.start(xid, XAResource.TMNOFLAGS);
System.out.println(
"CONNECTION(xa) HOLDABILITY "
+ (conn.getHoldability() == ResultSet.HOLD_CURSORS_OVER_COMMIT));
try {
conn.setHoldability(ResultSet.HOLD_CURSORS_OVER_COMMIT);
System.out.println("FAIL allowed to set hold mode in xa transaction");
} catch (SQLException sqle) {
System.out.println("Expected SQLException(setHoldability) " + sqle.getMessage());
}
// try to create a statement with held attributes
try {
Statement shxa =
conn.createStatement(
ResultSet.TYPE_FORWARD_ONLY,
ResultSet.CONCUR_READ_ONLY,
ResultSet.HOLD_CURSORS_OVER_COMMIT);
System.out.println(
"FAIL opened statement with hold cursor attribute in global transaction");
} catch (SQLException sqle) {
System.out.println("Expected SQLException (Statement hold) " + sqle.getMessage());
}
try {
Statement shxa =
conn.prepareStatement(
"select id from hold_30",
ResultSet.TYPE_FORWARD_ONLY,
ResultSet.CONCUR_READ_ONLY,
ResultSet.HOLD_CURSORS_OVER_COMMIT);
System.out.println(
"FAIL opened statement with hold cursor attribute in global transaction");
} catch (SQLException sqle) {
System.out.println("Expected SQLException (PreparedStatement hold) " + sqle.getMessage());
}
try {
Statement shxa =
conn.prepareCall(
"CALL XXX.TTT()",
ResultSet.TYPE_FORWARD_ONLY,
ResultSet.CONCUR_READ_ONLY,
ResultSet.HOLD_CURSORS_OVER_COMMIT);
System.out.println(
"FAIL opened statement with hold cursor attribute in global transaction");
} catch (SQLException sqle) {
System.out.println("Expected SQLException (CallableStatement hold) " + sqle.getMessage());
}
// check we cannot use a holdable statement set up in local mode.
System.out.println(
"STATEMENT HOLDABILITY "
+ (sh.getResultSetHoldability() == ResultSet.HOLD_CURSORS_OVER_COMMIT));
try {
sh.executeQuery("select id from hold_30");
System.out.println("FAIL used held statement in global transaction");
} catch (SQLException sqle) {
System.out.println("Expected SQLException (local Statement hold) " + sqle.getMessage());
}
try {
sh.execute("select id from hold_30");
System.out.println("FAIL used held statement in global transaction");
} catch (SQLException sqle) {
System.out.println("Expected SQLException (local Statement hold) " + sqle.getMessage());
}
System.out.println(
"PREPARED STATEMENT HOLDABILITY "
+ (psh.getResultSetHoldability() == ResultSet.HOLD_CURSORS_OVER_COMMIT));
try {
psh.executeQuery();
System.out.println("FAIL used held prepared statement in global transaction");
} catch (SQLException sqle) {
System.out.println(
"Expected SQLException (local PreparedStatement hold) " + sqle.getMessage());
}
try {
psh.execute();
System.out.println("FAIL used held prepared statement in global transaction");
} catch (SQLException sqle) {
System.out.println(
"Expected SQLException (local PreparedStatement hold) " + sqle.getMessage());
}
System.out.println(
"CALLABLE STATEMENT HOLDABILITY "
+ (csh.getResultSetHoldability() == ResultSet.HOLD_CURSORS_OVER_COMMIT));
try {
csh.executeQuery();
System.out.println("FAIL used held callable statement in global transaction");
} catch (SQLException sqle) {
System.out.println(
"Expected SQLException (local CallableStatement hold) " + sqle.getMessage());
}
try {
csh.execute();
System.out.println("FAIL used held callable statement in global transaction");
} catch (SQLException sqle) {
System.out.println(
"Expected SQLException (local CallableStatement hold) " + sqle.getMessage());
}
// but an update works
sh.executeUpdate("insert into hold_30 values(10, 'init10')");
xr.end(xid, XAResource.TMSUCCESS);
System.out.println(
"CONNECTION(held) HOLDABILITY "
+ (conn.getHoldability() == ResultSet.HOLD_CURSORS_OVER_COMMIT));
conn.close();
System.out.println("PASS XA HOLDABILITY TEST");
} catch (XAException xae) {
System.out.println("XAException error code " + xae.errorCode);
xae.printStackTrace(System.out);
Throwable t = xae.getCause();
if (t instanceof SQLException) JDBCDisplayUtil.ShowSQLException(System.out, (SQLException) t);
} catch (SQLException sqle) {
JDBCDisplayUtil.ShowSQLException(System.out, sqle);
} catch (Throwable t) {
t.printStackTrace(System.out);
}
System.out.flush();
}