本文整理了Java中org.apache.tinkerpop.gremlin.structure.Element类的一些代码示例，展示了Element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。Element类的具体详情如下：
包路径：org.apache.tinkerpop.gremlin.structure.Element
类名称：Element

Element介绍

[英]An Element is the base class for both Vertex and Edge. An Element has an identifier that must be unique to its inheriting classes ( Vertex or Edge). An Element can maintain a collection of Property objects. Typically, objects are Java primitives (e.g. String, long, int, boolean, etc.)
[中]元素是顶点和边的基类。元素的标识符必须对其继承类（顶点或边）唯一。元素可以维护属性对象的集合。通常，对象是Java原语（例如String、long、int、boolean等）

代码示例

代码示例来源：origin: thinkaurelius/titan

public static long getCompareId(Element element) {
  Object id = element.id();
  if (id instanceof Long) return (Long)id;
  else if (id instanceof RelationIdentifier) return ((RelationIdentifier)id).getRelationId();
  else throw new IllegalArgumentException("Element identifier has unrecognized type: " + id);
}

代码示例来源：origin: apache/tinkerpop

@Override
public <V> Property<V> property(final String key) {
  return this.baseElement.property(key);
}

代码示例来源：origin: apache/tinkerpop

public static Map<String, Object> propertyValueMap(final Element element, final String... propertyKeys) {
  final Map<String, Object> values = new HashMap<>();
  element.properties(propertyKeys).forEachRemaining(property -> values.put(property.key(), property.value()));
  return values;
}

代码示例来源：origin: thinkaurelius/titan

@Override
protected Iterator<E> flatMap(final Traverser.Admin<Element> traverser) {
  if (useMultiQuery) { //it is guaranteed that all elements are vertices
    assert multiQueryResults != null;
    return convertIterator(multiQueryResults.get(traverser.get()));
  } else if (traverser.get() instanceof Vertex) {
    TitanVertexQuery query = makeQuery((TitanTraversalUtil.getTitanVertex(traverser)).query());
    return convertIterator(query.properties());
  } else {
    //It is some other element (edge or vertex property)
    Iterator<E> iter;
    if (getReturnType().forValues()) {
      assert orders.isEmpty() && hasContainers.isEmpty();
      iter = traverser.get().values(getPropertyKeys());
    } else {
      //this asks for properties
      assert orders.isEmpty();
      //HasContainers don't apply => empty result set
      if (!hasContainers.isEmpty()) return Collections.emptyIterator();
      iter = (Iterator<E>) traverser.get().properties(getPropertyKeys());
    }
    if (limit!=Query.NO_LIMIT) iter = Iterators.limit(iter,limit);
    return iter;
  }
}

代码示例来源：origin: apache/tinkerpop

protected DetachedElement(final Element element) {
  this.id = element.id();
  try {
    this.label = element.label();
  } catch (final UnsupportedOperationException e) {   // ghetto.
    this.label = Vertex.DEFAULT_LABEL;
  }
}

代码示例来源：origin: apache/tinkerpop

@Override
protected Map<K, E> map(final Traverser.Admin<Element> traverser) {
  final Map<Object, Object> map = new LinkedHashMap<>();
  final Element element = traverser.get();
  final boolean isVertex = element instanceof Vertex;
  if (this.returnType == PropertyType.VALUE) {
    if (includeToken(WithOptions.ids)) map.put(T.id, element.id());
    if (element instanceof VertexProperty) {
      if (includeToken(WithOptions.keys)) map.put(T.key, ((VertexProperty<?>) element).key());
      if (includeToken(WithOptions.values)) map.put(T.value, ((VertexProperty<?>) element).value());
    } else {
      if (includeToken(WithOptions.labels)) map.put(T.label, element.label());
      element.properties(this.propertyKeys) :
      TraversalUtil.applyAll(traverser, this.propertyTraversal);
    final Object value = this.returnType == PropertyType.VALUE ? property.value() : property;
    if (isVertex) {
      map.compute(property.key(), (k, v) -> {
        final List<Object> values = v != null ? (List<Object>) v : new ArrayList<>();
        values.add(value);
      });
    } else {
      map.put(property.key(), value);

代码示例来源：origin: apache/tinkerpop

@Override
public <O extends OutputShim> void write(final KryoShim<?, O> kryo, final O output, final Property property) {
  output.writeString(property.key());
  kryo.writeClassAndObject(output, property.value());
  kryo.writeClassAndObject(output, property.element().id());
  output.writeString(property.element().label());
}

代码示例来源：origin: apache/tinkerpop

public void createKeyIndex(final String key) {
  if (null == key)
    throw Graph.Exceptions.argumentCanNotBeNull("key");
  if (key.isEmpty())
    throw new IllegalArgumentException("The key for the index cannot be an empty string");
  if (this.indexedKeys.contains(key))
    return;
  this.indexedKeys.add(key);
  (Vertex.class.isAssignableFrom(this.indexClass) ?
      this.graph.vertices.values().<T>parallelStream() :
      this.graph.edges.values().<T>parallelStream())
      .map(e -> new Object[]{((T) e).property(key), e})
      .filter(a -> ((Property) a[0]).isPresent())
      .forEach(a -> this.put(key, ((Property) a[0]).value(), (T) a[1]));
}

代码示例来源：origin: apache/tinkerpop

public static Map<String, Property> propertyMap(final Element element, final String... propertyKeys) {
  final Map<String, Property> propertyMap = new HashMap<>();
  element.properties(propertyKeys).forEachRemaining(property -> propertyMap.put(property.key(), property));
  return propertyMap;
}

代码示例来源：origin: org.jboss.windup.graph/windup-graph-api

/**
 * A string representation of this vertex, showing it's properties in a JSON-like format.
 */
default String toPrettyString()
{
  Element v = getElement();
  StringBuilder result = new StringBuilder();
  result.append("[").append(v.toString()).append("=");
  result.append("{");
  boolean hasSome = false;
  for (String propKey : v.keys())
  {
    hasSome = true;
    Iterator<? extends Property<Object>> propVal = v.properties(propKey);
    List<Object> propValues = new ArrayList<>();
    propVal.forEachRemaining(prop -> propValues.add(prop.value()));
    if (propValues.size() == 1)
      result.append(propKey).append(": ").append(propValues.get(0));
    else
      result.append(propKey).append(": ").append(propValues);
    result.append(", ");
  }
  if (hasSome)
  {
    result.delete(result.length() - 2, result.length());
  }
  result.append("}]");
  return result.toString();
}

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: org.hawkular.inventory/hawkular-inventory-impl-tinkerpop

@Override
public boolean isBackendInternal(Element element) {
  return (element instanceof Vertex && element.property(Constants.Property.__type.name()).value().equals(
      Constants.InternalType.__identityHash.name())) || (element instanceof Edge && (
          element.label().equals(Constants.InternalEdge.__withIdentityHash.name()) ||
          element.label().equals(Constants.InternalEdge.__containsIdentityHash.name())
      ));
}

代码示例来源：origin: apache/tinkerpop

/**
 * Get the values of properties as an {@link Iterator}.
 */
public default <V> Iterator<V> values(final String... propertyKeys) {
  return IteratorUtils.map(this.<V>properties(propertyKeys), property -> property.value());
}

代码示例来源：origin: apache/tinkerpop

public final boolean test(final Element element) {
  // it is OK to evaluate equality of ids via toString(), given that the test suite enforces the value of
  // id().toString() to be a first class representation of the identifier. a string test is only executed
  // if the predicate value is a String.  this allows stuff like: g.V().has(id,lt(10)) to work properly
  if (this.key.equals(T.id.getAccessor()))
    return testingIdString ? testIdAsString(element) : testId(element);
  else if (this.key.equals(T.label.getAccessor()))
    return testLabel(element);
  else if (element instanceof VertexProperty && this.key.equals(T.value.getAccessor()))
    return testValue((VertexProperty) element);
  else if (element instanceof VertexProperty && this.key.equals(T.key.getAccessor()))
    return testKey((VertexProperty) element);
  else {
    if (element instanceof Vertex) {
      final Iterator<? extends Property> itty = element.properties(this.key);
      while (itty.hasNext()) {
        if (testValue(itty.next()))
          return true;
      }
      return false;
    } else {
      final Property property = element.property(this.key);
      return property.isPresent() && testValue(property);
    }
  }
}

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: apache/tinkerpop

private void assertPropertyValue(final Element element) {
  if (value instanceof Map)
    tryCommit(graph, graph -> {
      final Map map = element.<Map>property("aKey").value();
      assertEquals(((Map) value).size(), map.size());
      ((Map) value).keySet().forEach(k -> assertEquals(((Map) value).get(k), map.get(k)));
  else if (value instanceof List)
    tryCommit(graph, graph -> {
      final List l = element.<List>property("aKey").value();
      assertEquals(((List) value).size(), l.size());
      for (int ix = 0; ix < ((List) value).size(); ix++) {
  else if (value instanceof MockSerializable)
    tryCommit(graph, graph -> {
      final MockSerializable mock = element.<MockSerializable>property("aKey").value();
      assertEquals(((MockSerializable) value).getTestField(), mock.getTestField());
    });
  else if (value instanceof boolean[])
    tryCommit(graph, graph -> {
      final boolean[] l = element.<boolean[]>property("aKey").value();
      assertEquals(((boolean[]) value).length, l.length);
      for (int ix = 0; ix < ((boolean[]) value).length; ix++) {
  else if (value instanceof double[])
    tryCommit(graph, graph -> {
      final double[] l = element.<double[]>property("aKey").value();
      assertEquals(((double[]) value).length, l.length);
      for (int ix = 0; ix < ((double[]) value).length; ix++) {

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: uk.gov.dstl.baleen/baleen-graph

private Map<String, Object> aggregateProperties(Element element) {
 Map<String, Object> mention = new HashMap<>();
 mention.put(ID_PROPERTY, element.id());
 options
   .getAggregateProperties()
   .forEach(p -> element.property(p).ifPresent(value -> mention.put(p, value)));
 return mention;
}

代码示例来源：origin: com.syncleus.ferma/ferma

@Override
public void setProperty(final String name, final Object value) {
  if (value == null) {
    getElement().property(name).remove();
  } else if (value instanceof Enum) {
    getElement().property(name, value.toString());
  } else {
    getElement().property(name, value);
  }
}

代码示例来源：origin: apache/tinkerpop

/**
 * Add or set a property value for the {@code Element} given its key.
 */
public <V> Property<V> property(final String key, final V value);