本文整理了Java中java.util.Set.clear()方法的一些代码示例，展示了Set.clear()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。Set.clear()方法的具体详情如下：
包路径：java.util.Set
类名称：Set
方法名：clear

Set.clear介绍

[英]Removes all elements from this set, leaving it empty.
[中]

代码示例

代码示例来源：origin: spring-projects/spring-framework

@Override
public void removeAllListeners() {
  synchronized (this.retrievalMutex) {
    this.defaultRetriever.applicationListeners.clear();
    this.defaultRetriever.applicationListenerBeans.clear();
    this.retrieverCache.clear();
  }
}

代码示例来源：origin: Tencent/tinker

public ChangedClassesDexClassInfoCollector setExcludedClassPatterns(Collection<String> loaderClassPatterns) {
  this.excludedClassPatterns.clear();
  this.excludedClassPatterns.addAll(loaderClassPatterns);
  return this;
}

代码示例来源：origin: spring-projects/spring-framework

/**
 * Add the given {@link PropertySource} to the start of the chain.
 * @param propertySource the PropertySource to add
 * @since 4.1
 */
public void addFirstPropertySource(PropertySource<?> propertySource) {
  List<PropertySource<?>> existing = new ArrayList<>(this.propertySources);
  this.propertySources.clear();
  this.propertySources.add(propertySource);
  this.propertySources.addAll(existing);
}

代码示例来源：origin: Sable/soot

protected void merge(HashMap<Local, Set<NewExpr>> in1, HashMap<Local, Set<NewExpr>> in2, HashMap<Local, Set<NewExpr>> o) {
 for (Local l : locals) {
  Set<NewExpr> l1 = in1.get(l), l2 = in2.get(l);
  Set<NewExpr> out = o.get(l);
  out.clear();
  if (l1.contains(UNKNOWN) || l2.contains(UNKNOWN)) {
   out.add(UNKNOWN);
  } else {
   out.addAll(l1);
   out.addAll(l2);
  }
 }
}

代码示例来源：origin: apache/hive

public void addAllowedUser(String user) {
 if (StringUtils.isBlank(user)) {
  return;
 }
 if (allowedUsers.contains(WILDCARD_ACL_VALUE)) {
  return;
 }
 if (user.equals(WILDCARD_ACL_VALUE)) {
  allowedUsers.clear();
  allowedGroups.clear();
 }
 allowedUsers.add(user);
}

代码示例来源：origin: google/guava

@Override
 public void validateClass(Class<? extends Exception> exceptionClass) {
  for (WeakReference<Class<? extends Exception>> knownGood : validClasses) {
   if (exceptionClass.equals(knownGood.get())) {
    return;
   }
   // TODO(cpovirk): if reference has been cleared, remove it?
  }
  checkExceptionClassValidity(exceptionClass);
  /*
   * It's very unlikely that any loaded Futures class will see getChecked called with more
   * than a handful of exceptions. But it seems prudent to set a cap on how many we'll cache.
   * This avoids out-of-control memory consumption, and it keeps the cache from growing so
   * large that doing the lookup is noticeably slower than redoing the work would be.
   *
   * Ideally we'd have a real eviction policy, but until we see a problem in practice, I hope
   * that this will suffice. I have not even benchmarked with different size limits.
   */
  if (validClasses.size() > 1000) {
   validClasses.clear();
  }
  validClasses.add(new WeakReference<Class<? extends Exception>>(exceptionClass));
 }
}

代码示例来源：origin: stanfordnlp/CoreNLP

private boolean findNextAll()
{
 if (curMatchIter != null && curMatchIter.hasNext()) {
  while (curMatchIter.hasNext()) {
   int next = curMatchIter.next();
   curMatchStates.setMatchedGroups(next);
   String sig = getMatchedSignature();
   if (!prevMatchedSignatures.contains(sig)) {
    prevMatchedSignatures.add(sig);
    return true;
   }
  }
 }
 if (nextMatchStart < 0) { return false; }
 prevMatchedSignatures.clear();
 boolean matched = find(nextMatchStart, false);
 if (matched) {
  Collection<Integer> matchedBranches = curMatchStates.getMatchIndices();
  curMatchIter = matchedBranches.iterator();
  int next = curMatchIter.next();
  curMatchStates.setMatchedGroups(next);
  prevMatchedSignatures.add(getMatchedSignature());
 }
 return matched;
}

代码示例来源：origin: spring-projects/spring-framework

/**
 * Set the 'autowired' annotation type, to be used on constructors, fields,
 * setter methods and arbitrary config methods.
 * <p>The default autowired annotation type is the Spring-provided {@link Autowired}
 * annotation, as well as {@link Value}.
 * <p>This setter property exists so that developers can provide their own
 * (non-Spring-specific) annotation type to indicate that a member is supposed
 * to be autowired.
 */
public void setAutowiredAnnotationType(Class<? extends Annotation> autowiredAnnotationType) {
  Assert.notNull(autowiredAnnotationType, "'autowiredAnnotationType' must not be null");
  this.autowiredAnnotationTypes.clear();
  this.autowiredAnnotationTypes.add(autowiredAnnotationType);
}

代码示例来源：origin: jfinal/jfinal

/**
 * Keep attribute of this model and remove other attributes.
 * @param attr the attribute name of the model
 * @return this model
 */
public M keep(String attr) {
  if (attrs.containsKey(attr)) {	// prevent put null value to the newColumns
    Object keepIt = attrs.get(attr);
    boolean keepFlag = _getModifyFlag().contains(attr);
    attrs.clear();
    _getModifyFlag().clear();
    attrs.put(attr, keepIt);
    if (keepFlag)
      _getModifyFlag().add(attr);
  }
  else {
    attrs.clear();
    _getModifyFlag().clear();
  }
  return (M)this;
}

代码示例来源：origin: apache/flink

protected void copyFrom(CompilerHints source) {
    this.outputSize = source.outputSize;
    this.outputCardinality = source.outputCardinality;
    this.avgOutputRecordSize = source.avgOutputRecordSize;
    this.filterFactor = source.filterFactor;
    
    if (source.uniqueFields != null && source.uniqueFields.size() > 0) {
      if (this.uniqueFields == null) {
        this.uniqueFields = new HashSet<FieldSet>();
      } else {
        this.uniqueFields.clear();
      }
      
      this.uniqueFields.addAll(source.uniqueFields);
    }
  }
}

代码示例来源：origin: apache/incubator-druid

int want = targetWorkerCount - (currValidWorkers + currentlyProvisioning.size());
while (want > 0) {
 final AutoScalingData provisioned = workerConfig.getAutoScaler().provision();
  break;
 } else {
  currentlyProvisioning.addAll(newNodes);
  lastProvisionTime = DateTimes.nowUtc();
  scalingStats.addProvisionEvent(provisioned);
if (!currentlyProvisioning.isEmpty()) {
 Duration durSinceLastProvision = new Duration(lastProvisionTime, DateTimes.nowUtc());
 log.info("%s provisioning. Current wait time: %s", currentlyProvisioning, durSinceLastProvision);
  log.makeAlert("Worker node provisioning taking too long!")
    .addData("millisSinceLastProvision", durSinceLastProvision.getMillis())
    .addData("provisioningCount", currentlyProvisioning.size())
    .emit();
  currentlyProvisioning.clear();

代码示例来源：origin: SonarSource/sonarqube

/**
 * Removes the plugins that are not compatible with current environment.
 */
private void unloadIncompatiblePlugins() {
 // loop as long as the previous loop ignored some plugins. That allows to support dependencies
 // on many levels, for example D extends C, which extends B, which requires A. If A is not installed,
 // then B, C and D must be ignored. That's not possible to achieve this algorithm with a single
 // iteration over plugins.
 Set<String> removedKeys = new HashSet<>();
 do {
  removedKeys.clear();
  for (PluginInfo plugin : pluginInfosByKeys.values()) {
   if (!isCompatible(plugin, runtime, pluginInfosByKeys)) {
    removedKeys.add(plugin.getKey());
   }
  }
  for (String removedKey : removedKeys) {
   pluginInfosByKeys.remove(removedKey);
  }
 } while (!removedKeys.isEmpty());
}

代码示例来源：origin: alibaba/Sentinel

private static void clearAndResetRulesFor(/*@Valid*/ String namespace) {
  Set<Long> flowIdSet = NAMESPACE_FLOW_ID_MAP.get(namespace);
  if (flowIdSet != null && !flowIdSet.isEmpty()) {
    for (Long flowId : flowIdSet) {
      PARAM_RULES.remove(flowId);
      FLOW_NAMESPACE_MAP.remove(flowId);
    }
    flowIdSet.clear();
  } else {
    resetNamespaceFlowIdMapFor(namespace);
  }
}

代码示例来源：origin: hibernate/hibernate-orm

void cleanup() {
  if ( !localLoadingCollectionKeys.isEmpty() ) {
    LOG.localLoadingCollectionKeysCount( localLoadingCollectionKeys.size() );
  }
  loadContexts.cleanupCollectionXRefs( localLoadingCollectionKeys );
  localLoadingCollectionKeys.clear();
}

代码示例来源：origin: hibernate/hibernate-orm

@Override
public Set<HashEntry<K, V>> onEntryMiss(HashEntry<K, V> e) {
  put( e, e.value );
  if ( !evicted.isEmpty() ) {
    Set<HashEntry<K, V>> evictedCopy = new HashSet<HashEntry<K, V>>();
    evictedCopy.addAll( evicted );
    evicted.clear();
    return evictedCopy;
  }
  else {
    return Collections.emptySet();
  }
}

代码示例来源：origin: hongyangAndroid/FlowLayout

public void setMaxSelectCount(int count) {
  if (mSelectedView.size() > count) {
    Log.w(TAG, "you has already select more than " + count + " views , so it will be clear .");
    mSelectedView.clear();
  }
  mSelectedMax = count;
}

代码示例来源：origin: Netflix/eureka

private List<EurekaEndpoint> getHostCandidates() {
  List<EurekaEndpoint> candidateHosts = clusterResolver.getClusterEndpoints();
  quarantineSet.retainAll(candidateHosts);
  // If enough hosts are bad, we have no choice but start over again
  int threshold = (int) (candidateHosts.size() * transportConfig.getRetryableClientQuarantineRefreshPercentage());
  //Prevent threshold is too large
  if (threshold > candidateHosts.size()) {
    threshold = candidateHosts.size();
  }
  if (quarantineSet.isEmpty()) {
    // no-op
  } else if (quarantineSet.size() >= threshold) {
    logger.debug("Clearing quarantined list of size {}", quarantineSet.size());
    quarantineSet.clear();
  } else {
    List<EurekaEndpoint> remainingHosts = new ArrayList<>(candidateHosts.size());
    for (EurekaEndpoint endpoint : candidateHosts) {
      if (!quarantineSet.contains(endpoint)) {
        remainingHosts.add(endpoint);
      }
    }
    candidateHosts = remainingHosts;
  }
  return candidateHosts;
}

代码示例来源：origin: azkaban/azkaban

public void addPermission(final Type... list) {
 // Admin is all encompassing permission. No need to add other types
 if (!this.permissions.contains(Type.ADMIN)) {
  for (final Type perm : list) {
   this.permissions.add(perm);
  }
  // We add everything, and if there's Admin left, we make sure that only
  // Admin is remaining.
  if (this.permissions.contains(Type.ADMIN)) {
   this.permissions.clear();
   this.permissions.add(Type.ADMIN);
  }
 }
}

代码示例来源：origin: prestodb/presto

@Override
 public void validateClass(Class<? extends Exception> exceptionClass) {
  for (WeakReference<Class<? extends Exception>> knownGood : validClasses) {
   if (exceptionClass.equals(knownGood.get())) {
    return;
   }
   // TODO(cpovirk): if reference has been cleared, remove it?
  }
  checkExceptionClassValidity(exceptionClass);
  /*
   * It's very unlikely that any loaded Futures class will see getChecked called with more
   * than a handful of exceptions. But it seems prudent to set a cap on how many we'll cache.
   * This avoids out-of-control memory consumption, and it keeps the cache from growing so
   * large that doing the lookup is noticeably slower than redoing the work would be.
   *
   * Ideally we'd have a real eviction policy, but until we see a problem in practice, I hope
   * that this will suffice. I have not even benchmarked with different size limits.
   */
  if (validClasses.size() > 1000) {
   validClasses.clear();
  }
  validClasses.add(new WeakReference<Class<? extends Exception>>(exceptionClass));
 }
}

代码示例来源：origin: pxb1988/dex2jar

continue;
children.add(c);
stack1.push(iterateParent(c));
  boolean canPop = true;
  while (e.it.hasNext()) {
    TypeIdItem tid = e.it.next();
    if (tid == null) {
      continue;
      if (children.contains(superDef)) {
        System.err.println("WARN: dep-loop " + e.owner.clazz.descriptor.stringData.string + " -> "
            + superDef.clazz.descriptor.stringData.string);
      } else {
        canPop = false;
        children.add(superDef);
        stack1.push(iterateParent(superDef));
        break;
children.clear();