(that is, if <i>W</i>(<i>r</i>) = <i>w</i>),
then <i>w</i> is synchronized before <i>r</i>.
Informally, the synchronized before relation is a subset of the implied total order
mentioned in the previous paragraph,
limited to the information that <i>W</i> directly observes.
</p>

<p>
The <i>happens before</i> relation is defined as the transitive closure of the

Falarei mais sobre imagens de contêiner, Docker, Kubernetes, etc. em um capítulo futuro: [FastAPI em contêineres - Docker](docker.md){.internal-link target=_blank}.

///

## Etapas anteriores antes de começar { #previous-steps-before-starting }

Há muitos casos em que você deseja executar algumas etapas **antes de iniciar** sua aplicação.

Por exemplo, você pode querer executar **migrações de banco de dados**.

        throw e
      }
      bytesRemainingInChunk -= read
      return read
    }

    private fun readChunkSize() {
      // Read the suffix of the previous chunk.
      if (bytesRemainingInChunk != NO_CHUNK_YET) {
        socket.source.readUtf8LineStrict()
      }
      try {
        bytesRemainingInChunk = socket.source.readHexadecimalUnsignedLong()

Ich werde Ihnen in einem zukünftigen Kapitel mehr über Container-Images, Docker, Kubernetes, usw. erzählen: [FastAPI in Containern – Docker](docker.md){.internal-link target=_blank}.

///

## Schritte vor dem Start { #previous-steps-before-starting }

Es gibt viele Fälle, in denen Sie, **bevor Sie Ihre Anwendung starten**, einige Schritte ausführen möchten.

Beispielsweise möchten Sie möglicherweise **Datenbankmigrationen** ausführen.

      @Override
      public boolean hasPrevious() {
        return getDelegateListIterator().hasPrevious();
      }

      @Override
      @ParametricNullness
      public V previous() {
        return getDelegateListIterator().previous();
      }

      @Override
      public int nextIndex() {
        return getDelegateListIterator().nextIndex();
      }

      @Override

   * element, to further specify that a successful call must always increment the count of the
   * element, and the overall size of the collection, by one.
   *
   * <p>To both add the element and obtain the previous count of that element, use {@link
   * #add(Object, int) add}{@code (element, 1)} instead.
   *
   * @param element the element to add one occurrence of; may be null only if explicitly allowed by
   *     the implementation

    Play Services security provider.


## Version 2.7.4

_2016-02-07_

 *  Fix: Don't crash when finding the trust manager if the Play Services (GMS)
    security provider is installed.
 *  Fix: The previous release introduced a performance regression on Android,
    caused by looking up CA certificates. This is now fixed.


## Version 2.7.3

_2016-02-06_

    setSucceeds(lastEntry, entryIndex);
    setSucceeds(entryIndex, ENDPOINT);
  }

  @Override
  void accessEntry(int index) {
    if (accessOrder) {
      // delete from previous position...
      setSucceeds(getPredecessor(index), getSuccessor(index));
      // ...and insert at the end.
      setSucceeds(lastEntry, index);
      setSucceeds(index, ENDPOINT);
      incrementModCount();

   * element, to further specify that a successful call must always increment the count of the
   * element, and the overall size of the collection, by one.
   *
   * <p>To both add the element and obtain the previous count of that element, use {@link
   * #add(Object, int) add}{@code (element, 1)} instead.
   *
   * @param element the element to add one occurrence of; may be null only if explicitly allowed by
   *     the implementation

        for (Lifecycle.Phase child : phases) {
            // add phase
            addPhase(graph, before, after, child);
            if (prev != null) {
                // add link between end of previous phase and beginning of this one
                graph.addEdge(graph.addVertex(AFTER + prev.name()), graph.addVertex(BEFORE + child.name()));
            }
            prev = child;
        }
    }

    @Named