java.util.Map.replaceAll()方法的使用及代码示例

x33g5p2x  于2022-01-16 转载在 其他  
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本文整理了Java中java.util.Map.replaceAll()方法的一些代码示例，展示了Map.replaceAll()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。Map.replaceAll()方法的具体详情如下：
包路径：java.util.Map
类名称：Map
方法名：replaceAll

Map.replaceAll介绍

暂无

代码示例

代码示例来源：origin: google/guava

@Override
public void replaceAll(BiFunction<? super K, ? super V, ? extends V> function) {
 synchronized (mutex) {
  delegate().replaceAll(function);
 }
}

代码示例来源：origin: google/guava

@Override
public void replaceAll(BiFunction<? super K, ? super V, ? extends V> function) {
 this.delegate.replaceAll(function);
 inverse.delegate.clear();
 Entry<K, V> broken = null;
 Iterator<Entry<K, V>> itr = this.delegate.entrySet().iterator();
 while (itr.hasNext()) {
  Entry<K, V> entry = itr.next();
  K k = entry.getKey();
  V v = entry.getValue();
  K conflict = inverse.delegate.putIfAbsent(v, k);
  if (conflict != null) {
   broken = entry;
   // We're definitely going to throw, but we'll try to keep the BiMap in an internally
   // consistent state by removing the bad entry.
   itr.remove();
  }
 }
 if (broken != null) {
  throw new IllegalArgumentException("value already present: " + broken.getValue());
 }
}

代码示例来源：origin: prestodb/presto

@Override
public void replaceAll(BiFunction<? super K, ? super V, ? extends V> function) {
 synchronized (mutex) {
  delegate().replaceAll(function);
 }
}

代码示例来源：origin: apache/flink

private void cleanUp() {
  // invalidate row
  final Row deleteRow = materializedTable.get(validRowPosition);
  if (rowPositionCache.get(deleteRow) == validRowPosition) {
    // this row has no duplicates in the materialized table,
    // it can be removed from the cache
    rowPositionCache.remove(deleteRow);
  }
  materializedTable.set(validRowPosition, null);
  validRowPosition++;
  // perform clean up in batches
  if (validRowPosition >= overcommitThreshold) {
    materializedTable.subList(0, validRowPosition).clear();
    // adjust all cached indexes
    rowPositionCache.replaceAll((k, v) -> v - validRowPosition);
    validRowPosition = 0;
  }
}

代码示例来源：origin: prestodb/presto

@Override
public void replaceAll(BiFunction<? super K, ? super V, ? extends V> function) {
 this.delegate.replaceAll(function);
 inverse.delegate.clear();
 Entry<K, V> broken = null;
 Iterator<Entry<K, V>> itr = this.delegate.entrySet().iterator();
 while (itr.hasNext()) {
  Entry<K, V> entry = itr.next();
  K k = entry.getKey();
  V v = entry.getValue();
  K conflict = inverse.delegate.putIfAbsent(v, k);
  if (conflict != null) {
   broken = entry;
   // We're definitely going to throw, but we'll try to keep the BiMap in an internally
   // consistent state by removing the bad entry.
   itr.remove();
  }
 }
 if (broken != null) {
  throw new IllegalArgumentException("value already present: " + broken.getValue());
 }
}

代码示例来源：origin: wildfly/wildfly

@Override
public void replaceAll(BiFunction<? super K, ? super V, ? extends V> function) {
 synchronized (mutex) {
  delegate().replaceAll(function);
 }
}

代码示例来源：origin: wildfly/wildfly

@Override
public void replaceAll(BiFunction<? super K, ? super V, ? extends V> function) {
 this.delegate.replaceAll(function);
 inverse.delegate.clear();
 Entry<K, V> broken = null;
 Iterator<Entry<K, V>> itr = this.delegate.entrySet().iterator();
 while (itr.hasNext()) {
  Entry<K, V> entry = itr.next();
  K k = entry.getKey();
  V v = entry.getValue();
  K conflict = inverse.delegate.putIfAbsent(v, k);
  if (conflict != null) {
   broken = entry;
   // We're definitely going to throw, but we'll try to keep the BiMap in an internally
   // consistent state by removing the bad entry.
   itr.remove();
  }
 }
 if (broken != null) {
  throw new IllegalArgumentException("value already present: " + broken.getValue());
 }
}

代码示例来源：origin: google/guava

@MapFeature.Require(absent = SUPPORTS_PUT)
 public void testReplaceAll_unsupportedNoOpFunction() {
  try {
   getMap().replaceAll((K k, V v) -> v);
  } catch (UnsupportedOperationException tolerated) {
  }
  expectUnchanged();
 }
}

代码示例来源：origin: google/guava

@MapFeature.Require(SUPPORTS_PUT)
public void testReplaceAllRotate() {
 getMap()
   .replaceAll(
     (K k, V v) -> {
      int index = keys().asList().indexOf(k);
      return values().asList().get(index + 1);
     });
 List<Entry<K, V>> expectedEntries = new ArrayList<>();
 for (Entry<K, V> entry : getSampleEntries()) {
  int index = keys().asList().indexOf(entry.getKey());
  expectedEntries.add(Helpers.mapEntry(entry.getKey(), values().asList().get(index + 1)));
 }
 expectContents(expectedEntries);
}

代码示例来源：origin: google/guava

@MapFeature.Require(SUPPORTS_PUT)
@CollectionFeature.Require(KNOWN_ORDER)
public void testReplaceAllPreservesOrder() {
 getMap()
   .replaceAll(
     (K k, V v) -> {
      int index = keys().asList().indexOf(k);
      return values().asList().get(index + 1);
     });
 List<Entry<K, V>> orderedEntries = getOrderedElements();
 int index = 0;
 for (K key : getMap().keySet()) {
  assertEquals(orderedEntries.get(index).getKey(), key);
  index++;
 }
}

代码示例来源：origin: google/guava

@MapFeature.Require(absent = SUPPORTS_PUT)
@CollectionSize.Require(ZERO)
public void testReplaceAll_unsupportedByEmptyCollection() {
 try {
  getMap()
    .replaceAll(
      (K k, V v) -> {
       int index = keys().asList().indexOf(k);
       return values().asList().get(index + 1);
      });
 } catch (UnsupportedOperationException tolerated) {
 }
 expectUnchanged();
}

代码示例来源：origin: google/guava

@MapFeature.Require(absent = SUPPORTS_PUT)
@CollectionSize.Require(absent = ZERO)
public void testReplaceAll_unsupported() {
 try {
  getMap()
    .replaceAll(
      (K k, V v) -> {
       int index = keys().asList().indexOf(k);
       return values().asList().get(index + 1);
      });
  fail(
    "replaceAll() should throw UnsupportedOperation if a map does "
      + "not support it and is not empty.");
 } catch (UnsupportedOperationException expected) {
 }
 expectUnchanged();
}

代码示例来源：origin: ben-manes/caffeine

@CheckNoStats
@Test(dataProvider = "caches")
@CacheSpec(population = { Population.SINGLETON, Population.PARTIAL, Population.FULL },
  removalListener = { Listener.DEFAULT, Listener.CONSUMING })
public void putAll_replace(Map<Integer, Integer> map, CacheContext context) {
 Map<Integer, Integer> entries = new LinkedHashMap<>(context.original());
 entries.replaceAll((key, value) -> key);
 map.putAll(entries);
 assertThat(map, is(equalTo(entries)));
 assertThat(map, hasRemovalNotifications(context, entries.size(), RemovalCause.REPLACED));
 verifyWriter(context, (verifier, writer) -> {
  verifier.wroteAll(entries);
 });
}

代码示例来源：origin: ben-manes/caffeine

@CheckNoStats
@Test(dataProvider = "caches", expectedExceptions = WriteException.class)
@CacheSpec(implementation = Implementation.Caffeine, keys = ReferenceType.STRONG,
  population = { Population.SINGLETON, Population.PARTIAL, Population.FULL },
  compute = Compute.SYNC, writer = Writer.EXCEPTIONAL, removalListener = Listener.REJECTING)
public void replaceAll_writerFails(Map<Integer, Integer> map, CacheContext context) {
 try {
  map.replaceAll((key, value) -> context.absentValue());
 } finally {
  assertThat(map, equalTo(context.original()));
 }
}

代码示例来源：origin: ben-manes/caffeine

@CheckNoWriter @CheckNoStats
@CacheSpec(population = { Population.SINGLETON, Population.PARTIAL, Population.FULL },
  removalListener = { Listener.DEFAULT, Listener.REJECTING })
@Test(dataProvider = "caches", expectedExceptions = NullPointerException.class)
public void replaceAll_nullValue(Map<Integer, Integer> map, CacheContext context) {
 map.replaceAll((key, value) -> null);
}

代码示例来源：origin: ben-manes/caffeine

@CheckNoWriter @CheckNoStats
@CacheSpec(removalListener = { Listener.DEFAULT, Listener.REJECTING })
@Test(dataProvider = "caches", expectedExceptions = NullPointerException.class)
public void replaceAll_null(Map<Integer, Integer> map, CacheContext context) {
 map.replaceAll(null);
}

代码示例来源：origin: ben-manes/caffeine

@Test(dataProvider = "caches")
@CacheSpec(population = { Population.SINGLETON, Population.PARTIAL, Population.FULL },
  removalListener = { Listener.DEFAULT, Listener.CONSUMING })
public void putAll_replace(Cache<Integer, Integer> cache, CacheContext context) {
 Map<Integer, Integer> entries = new HashMap<>(context.original());
 entries.replaceAll((key, value) -> value + 1);
 cache.putAll(entries);
 assertThat(cache.asMap(), is(equalTo(entries)));
 assertThat(cache, hasRemovalNotifications(context, entries.size(), RemovalCause.REPLACED));
 verifyWriter(context, (verifier, writer) -> {
  verifier.wroteAll(entries);
 });
}

代码示例来源：origin: ben-manes/caffeine

@CacheSpec
@CheckNoWriter @CheckNoStats
@Test(dataProvider = "caches")
public void replaceAll_sameValue(Map<Integer, Integer> map, CacheContext context) {
 map.replaceAll((key, value) -> value);
 assertThat(map, is(equalTo(context.original())));
 if (context.isGuava() || context.isAsync()) {
  assertThat(map, hasRemovalNotifications(context, map.size(), RemovalCause.REPLACED));
 } else {
  assertThat(context.consumedNotifications(), hasSize(0));
 }
}

代码示例来源：origin: ben-manes/caffeine

@CacheSpec
@CheckNoStats
@Test(dataProvider = "caches")
public void replaceAll_differentValue(Map<Integer, Integer> map, CacheContext context) {
 map.replaceAll((key, value) -> key);
 map.forEach((key, value) -> {
  assertThat(value, is(equalTo(key)));
  verifyWriter(context, (verifier, writer) -> verifier.wrote(key, key));
 });
 assertThat(map, hasRemovalNotifications(context, map.size(), RemovalCause.REPLACED));
 verifyWriter(context, (verifier, writer) -> verifier.writes(context.original().size()));
}

代码示例来源：origin: speedment/speedment

Function<A, A> downstreamFinisher = (Function<A, A>) downstream.finisher();
Function<Map<K, A>, M> finisher = intermediate -> {
  intermediate.replaceAll((k, v) -> downstreamFinisher.apply(v));
  @SuppressWarnings("unchecked")
  M castResult = (M) intermediate;

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