Examples of jtermios.windows.WinAPI$HANDLE

org.skife.jdbi.v2.Handle
This WinAPI class implements a simple wrapper API to access the Windows COM ports from Java. The purpose is to follow reasonably closely the WIN32 API so that COM port related C-code can be ported to Java almost as-is with little changes when this class is statically imported.
This is a pure lightweight wrapper around WIN32 API calls with no added syntactic sugar, functionality or niceties.
Here is a rude example:
```
  import static jtermios.windows.WinAPI.*; ... byte[] buffer = "Hello World".getBytes(); HANDLE hcomm = CreateFileA( "COM5:", GENERIC_READ |GENERIC_WRITE, 0, null, 0, 0, null ); int[] wrtn = {0}; WriteFile(hcomm, buffer, buffer.length, wrtn); CloseHandle(hcomm);  
```
Can't get much closer to C-code, what!
In addition to the basic open/close/read/write and setup operations this class also makes available enough of the WIN32 Event API to make it possible to use overlapped (asynchronous) I/O on COM ports.
Note that overlapped IO API is full of fine print. Especially worth mentioning is that the OVERLAPPED structure cannot use autosync as it is modified (by Windows) outside the function calls that use it. OVERLAPPED takes care of not autosyncing but it is best to us the writeField() methods to set fields of OVERLAPPED.
```
  OVERLAPPED ovl = new OVERLAPPED(); ovl.writeField("hEvent",CreateEvent(null, true, false, null)); ... WriteFile(hComm, txm, txb.length, txn, ovl); ... GetOverlappedResult(hComm, ovl, txn, true);  
```
@author Kustaa Nyholm

        return new StringTemplateStatementLocator(loader);
    }


    public void testSimpleTemplate() throws Exception
    {
        final Handle h = openHandle();
        final int count = h.insert("tests:insert_one");
        assertEquals(1, count);
    }

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        assertEquals(1, count);
    }


    public void testParameterizedInsert() throws Exception
    {
        final Handle h = openHandle();
        final int count = h.createStatement("tests:parameterized_insert")
                .define("table", "something")
                .define("column_one", "id")
                .define("column_two", "name")
                .bind("column_one", 7)
                .bind("column_two", "Rebecca")
                .execute();
        assertEquals(1, count);


        final String name = h.createQuery("select name from something where id = 7")
                .map(StringMapper.FIRST)
                .first();
        assertEquals(name, "Rebecca");
    }

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        assertEquals(name, "Rebecca");
    }


    public void testExtraDefinesDontBreakThings() throws Exception
    {
        final Handle h = openHandle();
        final int count = h.createStatement("tests:insert_one")
                .define("name", "Nicole")
                .execute();
        assertEquals(1, count);
    }

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 */
public class TestQueryObjectGenerator extends DBITestCase
{
    public void testApiWhichTakesConnection() throws Exception
    {
        Handle h = openHandle();
        MyQueries qo = QueryObjectFactory.createQueryObject(MyQueries.class, h.getConnection());
        assertNotNull(qo);
    }

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        assertNotNull(qo);
    }


    public void testApiWhichTakesDatasource() throws Exception
    {
        final Handle h = openHandle();
        MyQueries qo = QueryObjectFactory.createQueryObject(MyQueries.class, Tools.getDataSource());
        assertNotNull(qo);
    }

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        try {
            service.inPropagationRequired(new Callback()
            {
                public void call(IDBI dbi)
                {
                    Handle h = DBIUtil.getHandle(dbi);
                    final int count = h.insert("insert into something (id, name) values (7, 'ignored')");
                    if (count == 1) {
                        throw new ForceRollback();
                    }
                    else {
                        throw new RuntimeException("!ZABAK");
                    }
                }
            });
        }
        catch (ForceRollback e) {
            assertTrue(true);
        }
        catch (RuntimeException e) {
            e.printStackTrace();
            fail("unexpected exception");
        }


        final Handle h = DBI.open(derby);


        int count = h.createQuery("select count(*) from something").map(new IntegerMapper()).first();


        assertEquals(0, count);
        h.close();
    }

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        try {
            service.inPropagationRequired(new Callback()
            {
                public void call(IDBI outer)
                {
                    final Handle h = DBIUtil.getHandle(outer);
                    h.insert("insert into something (id, name) values (7, 'ignored')");


                    try {
                        service.inNested(new Callback()
                        {
                            public void call(IDBI inner)
                            {
                                final Handle h = DBIUtil.getHandle(inner);
                                h.insert("insert into something (id, name) values (8, 'ignored again')");


                                int count = h.createQuery("select count(*) from something").map(new IntegerMapper()).first();
                                assertEquals(2, count);
                                throw new ForceRollback();
                            }
                        });
                        fail("should have thrown an exception");
                    }
                    catch (ForceRollback e) {
                        assertTrue(true);
                    }
                    int count = h.createQuery("select count(*) from something").map(new IntegerMapper()).first();
                    assertEquals(1, count);
                    throw new ForceRollback();
                }
            });
            fail("should have thrown an exception");
        }
        catch (ForceRollback e) {
            assertTrue(true);
        }


        service.inPropagationRequired(new Callback()
        {
            public void call(IDBI dbi)
            {
                final Handle h = DBIUtil.getHandle(dbi);
                int count = h.createQuery("select count(*) from something").map(new IntegerMapper()).first();
                assertEquals(0, count);
            }
        });
    }

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    {
        service.inPropagationRequired(new Callback()
        {
            public void call(IDBI outer)
            {
                final Handle h = DBIUtil.getHandle(outer);
                h.insert("insert into something (id, name) values (7, 'ignored')");


                try {
                    service.inRequiresNewReadUncommitted(new Callback()
                    {
                        public void call(IDBI inner)
                        {
                            final Handle h = DBIUtil.getHandle(inner);
                            int count = h.createQuery("select count(*) from something").map(new IntegerMapper()).first();
                            assertEquals(1, count);
                            h.insert("insert into something (id, name) values (8, 'ignored again')");
                            throw new ForceRollback();
                        }
                    });
                }
                catch (ForceRollback e) {
                    assertTrue(true);
                }


                int count = h.createQuery("select count(*) from something").map(new IntegerMapper()).first();
                assertEquals(1, count);
            }
        });
    }

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     * or a new one otherwise.
     * @param dbi the IDBI instance from which to obtain the handle
     */
    public static Handle getHandle(IDBI dbi)
    {
        Handle bound = (Handle) TransactionSynchronizationManager.getResource(dbi);
        if (bound == null) {
            bound = dbi.open();
            if (TransactionSynchronizationManager.isSynchronizationActive()) {
                TransactionSynchronizationManager.bindResource(dbi, bound);
                TransactionSynchronizationManager.registerSynchronization(new Adapter(dbi, bound));

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        this.dbi = null;
    }


    @Test
    public void createsAValidDBI() throws Exception {
        final Handle handle = dbi.open();


        final Query<String> names = handle.createQuery("SELECT name FROM people WHERE age < ?")
                                          .bind(0, 50)
                                          .map(StringMapper.FIRST);
        assertThat(ImmutableList.copyOf(names))
                .containsOnly("Coda Hale", "Kris Gale");
    }

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