本文整理了Java中io.vertx.codegen.annotations.Nullable类的一些代码示例，展示了Nullable类的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Nullable类的具体详情如下：
包路径：io.vertx.codegen.annotations.Nullable
类名称：Nullable

Nullable介绍

暂无

代码示例

代码示例来源：origin: eclipse-vertx/vert.x

/**
 * Blocking version of {@link #chown(String, String, String, Handler)}
 *
 */
@Fluent
FileSystem chownBlocking(String path, @Nullable String user, @Nullable String group) ;

代码示例来源：origin: eclipse-vertx/vert.x

/**
 * Returns the value of with the specified name.  If there are
 * more than one values for the specified name, the first value is returned.
 *
 * @param name The name of the header to search
 * @return The first header value or {@code null} if there is no such entry
 */
@Nullable String get(String name);

代码示例来源：origin: eclipse-vertx/vert.x

/**
 * Gets an {@link Argument} based on its name (argument name).
 *
 * @param name the name of the argument, must not be {@code null}
 * @return the {@link Argument}, {@code null} if not found.
 */
@Nullable
Argument getArgument(String name);

代码示例来源：origin: eclipse-vertx/vert.x

/**
 * Change the ownership on the file represented by {@code path} to {@code user} and {code group}, asynchronously.
 *
 * @param path  the path to the file
 * @param user  the user name, {@code null} will not change the user name
 * @param group  the user group, {@code null} will not change the user group name
 * @param handler  the handler that will be called on completion
 * @return a reference to this, so the API can be used fluently
 */
@Fluent
FileSystem chown(String path, @Nullable String user, @Nullable String group, Handler<AsyncResult<Void>> handler);

代码示例来源：origin: eclipse-vertx/vert.x

/**
 * Get a value from the map, asynchronously.
 *
 * @param k  the key
 * @param resultHandler - this will be called some time later with the async result.
 */
void get(K k, Handler<AsyncResult<@Nullable V>> resultHandler);

代码示例来源：origin: eclipse-vertx/vert.x

/**
 * Set a text message handler on the connection. This handler will be called similar to the
 * {@link #binaryMessageHandler(Handler)}, but the buffer will be converted to a String first
 *
 * @param handler the handler
 * @return a reference to this, so the API can be used fluently
 */
@Fluent
WebSocketBase textMessageHandler(@Nullable Handler<String> handler);

代码示例来源：origin: eclipse-vertx/vert.x

/**
 * Link {@link #putIfAbsent} but specifying a time to live for the entry. Entry will expire and get evicted
 * after the ttl.
 *
 * @param k  the key
 * @param v  the value
 * @param ttl  The time to live (in ms) for the entry
 * @param completionHandler  the handler
 */
void putIfAbsent(K k, V v, long ttl, Handler<AsyncResult<@Nullable V>> completionHandler);

代码示例来源：origin: eclipse-vertx/vert.x

/**
 * Set a binary message handler on the connection. This handler serves a similar purpose to {@link #handler(Handler)}
 * except that if a message comes into the socket in multiple frames, the data from the frames will be aggregated
 * into a single buffer before calling the handler (using {@link WebSocketFrame#isFinal()} to find the boundaries).
 *
 * @param handler the handler
 * @return a reference to this, so the API can be used fluently
 */
@Fluent
WebSocketBase binaryMessageHandler(@Nullable Handler<Buffer> handler);

代码示例来源：origin: eclipse-vertx/vert.x

/**
 * Replace the entry only if it is currently mapped to some value
 *
 * @param k  the key
 * @param v  the new value
 * @param resultHandler  the result handler will be passed the previous value
 */
void replace(K k, V v, Handler<AsyncResult<@Nullable V>> resultHandler);

代码示例来源：origin: eclipse-vertx/vert.x

/**
  * Set an exception handler.
  *
  * @param handler the handler
  * @return a reference to this, so the API can be used fluently
  */
 @Fluent
 StreamBase exceptionHandler(@Nullable Handler<Throwable> handler);
}

代码示例来源：origin: eclipse-vertx/vert.x

@Override
public HttpServerResponse bodyEndHandler(@Nullable Handler<Void> handler) {
 synchronized (conn) {
  bodyEndHandler = handler;
  return this;
 }
}

代码示例来源：origin: eclipse-vertx/vert.x

/**
 * Provides a handler that will be called after the last part of the body is written to the wire.
 * The handler is called asynchronously of when the response has been received by the client.
 * This provides a hook allowing you to do more operations once the request has been sent over the wire
 * such as resource cleanup.
 *
 * @param handler  the handler
 * @return a reference to this, so the API can be used fluently
 */
@Fluent
HttpServerResponse bodyEndHandler(@Nullable Handler<Void> handler);

代码示例来源：origin: eclipse-vertx/vert.x

/**
 * The reply address. Can be null.
 *
 * @return the reply address, or null, if message was sent without a reply handler.
 */
@Nullable
String replyAddress();

代码示例来源：origin: eclipse-vertx/vert.x

/**
 * Set an exception handler called when the context runs an action throwing an uncaught throwable.<p/>
 *
 * When this handler is called, {@link Vertx#currentContext()} will return this context.
 *
 * @param handler the exception handler
 * @return a reference to this, so the API can be used fluently
 */
@Fluent
Context exceptionHandler(@Nullable Handler<Throwable> handler);

代码示例来源：origin: eclipse-vertx/vert.x

/**
 * Gets the raw value of the given option. Raw values are the values as given in the user command line.
 *
 * @param option the option
 * @return the value, {@code null} if none.
 */
@Nullable String getRawValueForOption(Option option);

代码示例来源：origin: eclipse-vertx/vert.x

/**
 * Set an handler called when a {@literal GOAWAY} frame has been sent or received and all connections are closed.
 * <p/>
 * This is not implemented for HTTP/1.x.
 *
 * @param handler the handler
 * @return a reference to this, so the API can be used fluently
 */
@Fluent
HttpConnection shutdownHandler(@Nullable  Handler<Void> handler);

代码示例来源：origin: eclipse-vertx/vert.x

/**
 * Gets the raw value of the given argument. Raw values are the values as given in the user command line.
 *
 * @param arg the argument
 * @return the value, {@code null} if none.
 */
@Nullable String getRawValueForArgument(Argument arg);

代码示例来源：origin: eclipse-vertx/vert.x

/**
 * Set a handler that will be called when the NetSocket is closed
 *
 * @param handler  the handler
 * @return a reference to this, so the API can be used fluently
 */
@Fluent
NetSocket closeHandler(@Nullable Handler<Void> handler);

代码示例来源：origin: eclipse-vertx/vert.x

/**
 * Gets an {@link Argument} based on its index.
 *
 * @param index the index, must be positive or zero.
 * @return the {@link Argument}, {@code null} if not found.
 */
@Nullable
Argument getArgument(int index);

代码示例来源：origin: eclipse-vertx/vert.x

/**
 * Try to lookup the A (ipv4) or AAAA (ipv6) record for the given name. The first found will be used.
 *
 * @param name  the name to resolve
 * @param handler  the {@link io.vertx.core.Handler} to notify with the {@link io.vertx.core.AsyncResult}.
 *                 The handler will get notified with the resolved address if a record was found. If non was found it
 *                 will get notifed with {@code null}. If an error accours it will get failed.
 * @return a reference to this, so the API can be used fluently
 */
@Fluent
DnsClient lookup(String name, Handler<AsyncResult<@Nullable String>> handler);