org.apache.tinkerpop.gremlin.structure.Element.value()方法的使用及代码示例

x33g5p2x  于2022-01-19 转载在 其他  
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本文整理了Java中org.apache.tinkerpop.gremlin.structure.Element.value()方法的一些代码示例，展示了Element.value()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。Element.value()方法的具体详情如下：
包路径：org.apache.tinkerpop.gremlin.structure.Element
类名称：Element
方法名：value

Element.value介绍

[英]Get the value of a Property given it's key. The default implementation calls Element#property and then returns the associated value.
[中]获取给定属性键的属性值。默认实现调用元素#属性，然后返回关联的值。

代码示例

代码示例来源：origin: thinkaurelius/titan

public static void verifyElementOrder(Iterator<? extends Element> elements, String key, Order order, int expectedCount) {
  Comparable previous = null;
  int count = 0;
  while (elements.hasNext()) {
    Element element = elements.next();
    Comparable current = element.value(key);
    if (previous != null) {
      int cmp = previous.compareTo(current);
      assertTrue(previous + " <> " + current + " @ " + count,
          order == Order.ASC ? cmp <= 0 : cmp >= 0);
    }
    previous = current;
    count++;
  }
  assertEquals(expectedCount, count);
}

代码示例来源：origin: JanusGraph/janusgraph

public static void verifyElementOrder(Iterator<? extends Element> elements, String key, Order order, int expectedCount) {
  Comparable previous = null;
  int count = 0;
  while (elements.hasNext()) {
    final Element element = elements.next();
    final Comparable current = element.value(key);
    if (previous != null) {
      final int cmp = previous.compareTo(current);
      assertTrue(previous + " <> " + current + " @ " + count,
          order == Order.ASC ? cmp <= 0 : cmp >= 0);
    }
    previous = current;
    count++;
  }
  assertEquals(expectedCount, count);
}

代码示例来源：origin: apache/tinkerpop

@Override
public <V> V value(final String key) throws NoSuchElementException {
  return this.element.value(key);
}

代码示例来源：origin: apache/tinkerpop

@Override
public int compare(final Element elementA, final Element elementB) {
  return this.valueComparator.compare(elementA.value(this.propertyKey), elementB.value(this.propertyKey));
}

代码示例来源：origin: apache/tinkerpop

@Override
public void addStart(final Traverser.Admin<Element> start) {
  this.value = null == this.bypassTraversal ? start.get().value(this.propertyKey) : TraversalUtil.apply(start, this.bypassTraversal);
}

代码示例来源：origin: apache/tinkerpop

/**
 * Retrieve the properties associated with a particular element.
 * The result is a Object[] where odd indices are String keys and even indices are the values.
 *
 * @param element          the element to retrieve properties from
 * @param includeId        include Element.ID in the key/value list
 * @param includeLabel     include Element.LABEL in the key/value list
 * @param propertiesToCopy the properties to include with an empty list meaning copy all properties
 * @return a key/value array of properties where odd indices are String keys and even indices are the values.
 */
public static Object[] getProperties(final Element element, final boolean includeId, final boolean includeLabel, final Set<String> propertiesToCopy) {
  final List<Object> keyValues = new ArrayList<>();
  if (includeId) {
    keyValues.add(T.id);
    keyValues.add(element.id());
  }
  if (includeLabel) {
    keyValues.add(T.label);
    keyValues.add(element.label());
  }
  element.keys().forEach(key -> {
    if (propertiesToCopy.isEmpty() || propertiesToCopy.contains(key)) {
      keyValues.add(key);
      keyValues.add(element.value(key));
    }
  });
  return keyValues.toArray(new Object[keyValues.size()]);
}

代码示例来源：origin: apache/tinkerpop

@Test
@LoadGraphWith(MODERN)
public void g_V_hasXage_isXgt_30XX() {
  final Traversal<Vertex, Vertex> traversal = get_g_V_hasXage_isXgt_30XX();
  printTraversalForm(traversal);
  final List<Vertex> list = traversal.toList();
  assertEquals(2, list.size());
  for (final Element v : list) {
    assertTrue(v.<Integer>value("age") > 30);
  }
}

代码示例来源：origin: apache/tinkerpop

@Test
@LoadGraphWith(MODERN)
public void g_V_hasXage_gt_30X() {
  final Traversal<Vertex, Vertex> traversal = get_g_V_hasXage_gt_30X();
  printTraversalForm(traversal);
  final List<Vertex> list = traversal.toList();
  assertEquals(2, list.size());
  for (final Element v : list) {
    assertTrue(v.<Integer>value("age") > 30);
  }
}

代码示例来源：origin: org.apache.tinkerpop/gremlin-core

@Override
public <V> V value(final String key) throws NoSuchElementException {
  return this.element.value(key);
}

代码示例来源：origin: org.apache.tinkerpop/gremlin-core

@Override
public int compare(final Element elementA, final Element elementB) {
  return this.valueComparator.compare(elementA.value(this.propertyKey), elementB.value(this.propertyKey));
}

代码示例来源：origin: HuygensING/timbuctoo

private void updateExistingProperties(LogOutput dbLog) {
 Set<String> existing = Sets.intersection(newKeys, oldKeys);
 existing.forEach(key -> {
  Property<Object> latestProperty = element.property(key);
  if (!Objects.equals(latestProperty.value(), prevElement.value(key))) {
   dbLog.updateProperty(latestProperty);
  }
 });
}

代码示例来源：origin: org.apache.tinkerpop/gremlin-core

@Override
public void addStart(final Traverser.Admin<Element> start) {
  this.value = null == this.bypassTraversal ? start.get().value(this.propertyKey) : TraversalUtil.apply(start, this.bypassTraversal);
}

代码示例来源：origin: org.apache.tinkerpop/gremlin-core

/**
 * Retrieve the properties associated with a particular element.
 * The result is a Object[] where odd indices are String keys and even indices are the values.
 *
 * @param element          the element to retrieve properties from
 * @param includeId        include Element.ID in the key/value list
 * @param includeLabel     include Element.LABEL in the key/value list
 * @param propertiesToCopy the properties to include with an empty list meaning copy all properties
 * @return a key/value array of properties where odd indices are String keys and even indices are the values.
 */
public static Object[] getProperties(final Element element, final boolean includeId, final boolean includeLabel, final Set<String> propertiesToCopy) {
  final List<Object> keyValues = new ArrayList<>();
  if (includeId) {
    keyValues.add(T.id);
    keyValues.add(element.id());
  }
  if (includeLabel) {
    keyValues.add(T.label);
    keyValues.add(element.label());
  }
  element.keys().forEach(key -> {
    if (propertiesToCopy.isEmpty() || propertiesToCopy.contains(key)) {
      keyValues.add(key);
      keyValues.add(element.value(key));
    }
  });
  return keyValues.toArray(new Object[keyValues.size()]);
}

代码示例来源：origin: MartinHaeusler/chronos

@SuppressWarnings("unchecked")
private void assertNamesEqual(final Object... objects) {
  List<Object> list = Lists.newArrayList(objects);
  Object last = list.get(list.size() - 1);
  Set<Element> elements = null;
  if (last instanceof Iterable) {
    elements = Sets.newHashSet((Iterable<Element>) last);
  } else if (last instanceof Iterator) {
    elements = Sets.newHashSet((Iterator<Element>) last);
  } else if (last instanceof GraphFinalizableQueryBuilder) {
    elements = ((GraphFinalizableQueryBuilder<Element>) last).toSet();
  } else {
    String typeName = "NULL";
    if (last != null) {
      typeName = last.getClass().getName();
    }
    fail("Last element of 'assertNamesEqual' varargs must either be a Iterable<Element> or a Iterator<Element> (found: " + typeName + ")");
  }
  Set<String> elementNames = elements.stream().map(e -> (String) e.value("name")).collect(Collectors.toSet());
  Set<String> names = list.subList(0, list.size() - 1).stream().map(k -> (String) k).collect(Collectors.toSet());
  assertEquals(names, elementNames);
}

代码示例来源：origin: org.apache.tinkerpop/gremlin-test

@Test
@LoadGraphWith(MODERN)
public void g_V_hasXage_isXgt_30XX() {
  final Traversal<Vertex, Vertex> traversal = get_g_V_hasXage_isXgt_30XX();
  printTraversalForm(traversal);
  final List<Vertex> list = traversal.toList();
  assertEquals(2, list.size());
  for (final Element v : list) {
    assertTrue(v.<Integer>value("age") > 30);
  }
}

代码示例来源：origin: org.apache.tinkerpop/gremlin-test

@Test
@LoadGraphWith(MODERN)
public void g_V_hasXage_gt_30X() {
  final Traversal<Vertex, Vertex> traversal = get_g_V_hasXage_gt_30X();
  printTraversalForm(traversal);
  final List<Vertex> list = traversal.toList();
  assertEquals(2, list.size());
  for (final Element v : list) {
    assertTrue(v.<Integer>value("age") > 30);
  }
}

代码示例来源：origin: pietermartin/sqlg

public <S, E> boolean test(final Traverser.Admin<S> traverser, final Traversal.Admin<S, E> traversal) {
  if (this.untilHasContainer != null) {
    Element e = (Element) traverser.get();
    return this.untilHasContainer.getPredicate().test(e.value(this.untilHasContainer.getKey()));
        this.untilHasContainer = this.untilHasContainers.get(0);
        Element e = (Element) traverser.get();
        return this.untilHasContainer.getPredicate().test(e.value(this.untilHasContainer.getKey()));

代码示例来源：origin: org.umlg/sqlg-core

public <S, E> boolean test(final Traverser.Admin<S> traverser, final Traversal.Admin<S, E> traversal) {
  if (this.untilHasContainer != null) {
    Element e = (Element) traverser.get();
    return this.untilHasContainer.getPredicate().test(e.value(this.untilHasContainer.getKey()));
        this.untilHasContainer = this.untilHasContainers.get(0);
        Element e = (Element) traverser.get();
        return this.untilHasContainer.getPredicate().test(e.value(this.untilHasContainer.getKey()));

代码示例来源：origin: MartinHaeusler/chronos

@Override
public boolean apply(final V element) {
  ChronoElement chronoElement = (ChronoElement) element;
  if (chronoElement.isRemoved()) {
    // never consider removed elements
    return false;
  }
  for (SearchSpecification<?> searchSpec : this.searchSpecifications) {
    if (element.property(searchSpec.getProperty()).isPresent() == false) {
      // the property in question is not present, it is NOT possible to make
      // any decision if it matches the given search criterion or not. In particular,
      // when the search is negated (e.g. 'not equals'), we decide to have a non-match
      // for non-existing properties
      return false;
    }
    Object propertyValue = element.value(searchSpec.getProperty());
    boolean searchSpecApplies = ChronoGraphQueryUtil.searchSpecApplies(searchSpec, propertyValue);
    if (searchSpecApplies == false) {
      // element failed to pass this filter
      return false;
    }
  }
  // element passed all filters
  return true;
}

代码示例来源：origin: HuygensING/timbuctoo

for (; results.hasNext(); ) {
 Element element = results.next();
 String modifiedString = element.value("modified");

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