final WeakReference<ServiceManagerState> state;

    ServiceListener(Service service, WeakReference<ServiceManagerState> state) {
      this.service = service;
      this.state = state;
    }

    @Override
    public void starting() {
      ServiceManagerState state = this.state.get();
      if (state != null) {
        state.transitionService(service, NEW, STARTING);

### Create Database Tables on Startup

We will create the database tables when the application starts.

{* ../../docs_src/sql_databases/tutorial001_an_py310.py ln[32:37] hl[35:37] *}

Here we create the tables on an application startup event.

For production you would probably use a migration script that runs before you start your app. 🤓

/// tip

		}

		if _, _, err := net.SplitHostPort(consoleAddr); err != nil {
			logger.FatalIf(err, "Unable to start listening on console port")
		}

		if consoleAddr == addr {
			logger.FatalIf(errors.New("--console-address cannot be same as --address"), "Unable to start the server")
		}
	}

	globalMinioHost, globalMinioPort = mustSplitHostPort(addr)
	if globalMinioPort == "0" {

///

```Python hl_lines="11"
{!> ../../docs_src/query_params_str_validations/tutorial004.py!}
```

////

This specific regular expression pattern checks that the received parameter value:

* `^`: starts with the following characters, doesn't have characters before.
* `fixedquery`: has the exact value `fixedquery`.
* `$`: ends there, doesn't have any more characters after `fixedquery`.

      next = (keyList == null) ? null : keyList.head;
    }

    /**
     * Constructs a new iterator over all values for the specified key starting at the specified
     * index. This constructor is optimized so that it starts at either the head or the tail,
     * depending on which is closer to the specified index. This allows adds to the tail to be done
     * in constant time.
     *
     * @throws IndexOutOfBoundsException if index is invalid

      MoreFiles.deleteRecursively(symlink);

      assertFalse(Files.exists(symlink, NOFOLLOW_LINKS));
      assertTrue(Files.isDirectory(realSymlinkTarget, NOFOLLOW_LINKS));
    }
  }

  /**
   * Starts a new task on the given executor that switches (deletes and replaces) a file between
   * being a directory and being a symlink. The given {@code file} is the file that should switch

      ) {
        return null
      }

      // If the path is absent or didn't start with '/', use the default path. It's a string like
      // '/foo/bar' for a URL like 'http://example.com/foo/bar/baz'. It always starts with '/'.
      if (path == null || !path.startsWith("/")) {
        val encodedPath = url.encodedPath
        val lastSlash = encodedPath.lastIndexOf('/')

		}
	}

	// Now, we read the signature of the following payload and expect:
	//   chunk-signature=" + <signature-as-hex> + "\r\n"
	//
	// The signature is 64 bytes long (hex-encoded SHA256 hash) and
	// starts with a 16 byte header: len("chunk-signature=") + 64 == 80.
	var signature [80]byte
	_, err = io.ReadFull(cr.reader, signature[:])
	if err == io.EOF {
		err = io.ErrUnexpectedEOF
	}
	if err != nil {

    stats = cache.stats();
    assertEquals(2, stats.missCount());
    assertEquals(3, stats.loadSuccessCount());
    assertEquals(0, stats.loadExceptionCount());
    assertEquals(0, stats.hitCount());

    assertSame(key, cache.get(key));
    stats = cache.stats();
    assertEquals(2, stats.missCount());
    assertEquals(3, stats.loadSuccessCount());
    assertEquals(0, stats.loadExceptionCount());

                    case 0:
                        if (c == '\\') {
                            state = 1;
                        } else if (contains(WHITE_SPACE, c)) {
                            // switch to the separator crossing state
                            state = 2;
                        } else if (contains(SEPARATORS, c)) {
                            // switch to the value parsing state