本文整理了Java中com.apollographql.apollo.api.internal.Utils.checkNotNull()方法的一些代码示例，展示了Utils.checkNotNull()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。Utils.checkNotNull()方法的具体详情如下：
包路径：com.apollographql.apollo.api.internal.Utils
类名称：Utils
方法名：checkNotNull

Utils.checkNotNull介绍

[英]Checks if the object is null. Returns the object if it is not null, else throws a NullPointerException.
[中]检查对象是否为空。如果对象不为null，则返回该对象，否则抛出NullPointerException。

代码示例

代码示例来源：origin: apollographql/apollo-android

/**
 * @param evictionPolicy {@link EvictionPolicy} to manage the primary cache.
 */
public LruNormalizedCacheFactory(EvictionPolicy evictionPolicy) {
 this.evictionPolicy = checkNotNull(evictionPolicy, "evictionPolicy == null");
}

代码示例来源：origin: apollographql/apollo-android

/**
 * <p>Set the API server's base url.</p>
 *
 * @param serverUrl the url to set.
 * @return The {@link Builder} object to be used for chaining method calls
 */
public Builder serverUrl(@NotNull HttpUrl serverUrl) {
 this.serverUrl = checkNotNull(serverUrl, "serverUrl is null");
 return this;
}

代码示例来源：origin: apollographql/apollo-android

/**
 * Sets the http cache policy to be used as default for all GraphQL {@link Query} operations. Will be ignored for
 * any {@link Mutation} operations. By default http cache policy is set to {@link HttpCachePolicy#NETWORK_ONLY}.
 *
 * @return The {@link Builder} object to be used for chaining method calls
 */
public Builder defaultHttpCachePolicy(@NotNull HttpCachePolicy.Policy cachePolicy) {
 this.defaultHttpCachePolicy = checkNotNull(cachePolicy, "cachePolicy == null");
 return this;
}

代码示例来源：origin: apollographql/apollo-android

@Override
public String apply(Object o) {
 checkNotNull(o); // eager for GWT.
 return o.toString();
}

代码示例来源：origin: apollographql/apollo-android

@Override
public <T> void subscribe(@NotNull final Subscription<?, T, ?> subscription,
  @NotNull final SubscriptionManager.Callback<T> callback) {
 checkNotNull(subscription, "subscription == null");
 checkNotNull(callback, "callback == null");
 dispatcher.execute(new Runnable() {
  @Override
  public void run() {
   doSubscribe(subscription, callback);
  }
 });
}

代码示例来源：origin: apollographql/apollo-android

@Override public <V> Optional<V> flatMap(Function<? super T, Optional<V>> function) {
 checkNotNull(function);
 return checkNotNull(function.apply(reference),
   "the Function passed to Optional.flatMap() must not return null.");
}

代码示例来源：origin: apollographql/apollo-android

@Override
public void unsubscribe(@NotNull final Subscription subscription) {
 checkNotNull(subscription, "subscription == null");
 dispatcher.execute(new Runnable() {
  @Override
  public void run() {
   doUnsubscribe(subscription);
  }
 });
}

代码示例来源：origin: apollographql/apollo-android

private <CALL> Set<CALL> activeCalls(Map<OperationName, Set<CALL>> registry, @NotNull OperationName operationName) {
 checkNotNull(operationName, "operationName == null");
 //noinspection SynchronizationOnLocalVariableOrMethodParameter
 synchronized (registry) {
  Set<CALL> calls = registry.get(operationName);
  return calls != null ? new HashSet<>(calls) : Collections.<CALL>emptySet();
 }
}

代码示例来源：origin: apollographql/apollo-android

Response(Builder<T> builder) {
 operation = checkNotNull(builder.operation, "operation == null");
 data = builder.data;
 errors = builder.errors != null ? unmodifiableList(builder.errors) : Collections.<Error>emptyList();
 dependentKeys = builder.dependentKeys != null ? unmodifiableSet(builder.dependentKeys)
   : Collections.<String>emptySet();
 fromCache = builder.fromCache;
}

代码示例来源：origin: apollographql/apollo-android

@Override
public <V> Optional<V> transform(Function<? super T, V> function) {
 checkNotNull(function);
 return Optional.absent();
}

代码示例来源：origin: apollographql/apollo-android

/**
 * Create new cache policy with expire after timeout configuration. Cached response is treated as expired if it's
 * served date exceeds.
 *
 * @param expireTimeout  expire timeout after which cached response is treated as expired
 * @param expireTimeUnit time unit
 * @return new cache policy
 */
public ExpirePolicy expireAfter(long expireTimeout, @NotNull TimeUnit expireTimeUnit) {
 return new ExpirePolicy(fetchStrategy, expireTimeout, checkNotNull(expireTimeUnit), expireAfterRead);
}

代码示例来源：origin: apollographql/apollo-android

@NotNull @Override public ApolloMutationCall<T> refetchQueries(@NotNull Query... queries) {
 if (state.get() != IDLE) throw new IllegalStateException("Already Executed");
 return toBuilder()
   .refetchQueries(Arrays.asList(checkNotNull(queries, "queries == null")))
   .build();
}

代码示例来源：origin: apollographql/apollo-android

@NotNull @Override public RealApolloCall<T> httpCachePolicy(@NotNull HttpCachePolicy.Policy httpCachePolicy) {
 if (state.get() != IDLE) throw new IllegalStateException("Already Executed");
 return toBuilder()
   .httpCachePolicy(checkNotNull(httpCachePolicy, "httpCachePolicy == null"))
   .build();
}

代码示例来源：origin: apollographql/apollo-android

@NotNull @Override public RealApolloCall<T> responseFetcher(@NotNull ResponseFetcher fetcher) {
 if (state.get() != IDLE) throw new IllegalStateException("Already Executed");
 return toBuilder()
   .responseFetcher(checkNotNull(fetcher, "responseFetcher == null"))
   .build();
}

代码示例来源：origin: apollographql/apollo-android

public final NormalizedCacheFactory<T> chain(@NotNull NormalizedCacheFactory factory) {
  checkNotNull(factory, "factory == null");

  NormalizedCacheFactory leafFactory = this;
  while (leafFactory.nextFactory.isPresent()) {
   leafFactory = (NormalizedCacheFactory) leafFactory.nextFactory.get();
  }
  leafFactory.nextFactory = Optional.of(factory);

  return this;
 }
}

代码示例来源：origin: apollographql/apollo-android

/**
 * <p>Adds provided {@link ApolloMutationCall} that is currently in progress.</p>
 *
 * <p><b>Note</b>: This method needs to be called right before an apolloCall is executed.</p>
 */
void registerMutationCall(@NotNull ApolloMutationCall apolloMutationCall) {
 checkNotNull(apolloMutationCall, "apolloMutationCall == null");
 OperationName operationName = apolloMutationCall.operation().name();
 registerCall(activeMutationCalls, operationName, apolloMutationCall);
}

代码示例来源：origin: apollographql/apollo-android

public static String toJsonString(@NotNull Object data) throws IOException {
 checkNotNull(data, "data == null");
 Buffer buffer = new Buffer();
 JsonWriter jsonWriter = JsonWriter.of(buffer);
 writeToJson(data, jsonWriter);
 jsonWriter.close();
 return buffer.readUtf8();
}

代码示例来源：origin: apollographql/apollo-android

@Override public void writeNumber(@NotNull String fieldName, Number value) throws IOException {
 checkNotNull(fieldName, "fieldName == null");
 if (value != null) {
  jsonWriter.name(fieldName).value(value);
 } else {
  jsonWriter.name(fieldName).nullValue();
 }
}

代码示例来源：origin: apollographql/apollo-android

@Override public void writeMap(@NotNull String fieldName, Map<String, Object> value) throws IOException {
 checkNotNull(fieldName, "fieldName == null");
 if (value == null) {
  jsonWriter.name(fieldName).nullValue();
 } else {
  jsonWriter.name(fieldName);
  writeToJson(value, jsonWriter);
 }
}

代码示例来源：origin: apollographql/apollo-android

@NotNull public Set<String> mergeOptimisticUpdate(@NotNull final Record record) {
 checkNotNull(record, "record == null");
 final RecordJournal journal = lruCache.getIfPresent(record.key());
 if (journal == null) {
  lruCache.put(record.key(), new RecordJournal(record));
  return Collections.singleton(record.key());
 } else {
  return journal.commit(record);
 }
}