org.apache.tinkerpop.gremlin.structure.Element.property()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.property()方法的一些代码示例，展示了Element.property()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.property()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：property

Element.property介绍

[英]Get a Property for the Element given its key. The default implementation calls the raw Element#properties.
[中]获取给定元素键的元素的属性。默认实现调用原始元素#属性。

代码示例

代码示例来源：origin: apache/tinkerpop

  1. @Override
  2. public <V> Property<V> property(final String key) {
  3.   return this.baseElement.property(key);
  4. }

代码示例来源：origin: apache/tinkerpop

  1. @Override
  2. public <V> Property<V> property(final String key) {
  3.   return new ComputerProperty<>(this.element.property(key));
  4. }

代码示例来源：origin: apache/tinkerpop

  1. /**
  2.  * Assign key/value pairs as properties to an {@link org.apache.tinkerpop.gremlin.structure.Element}.  If the value of {@link T#id} or
  3.  * {@link T#label} is in the set of pairs, then they are ignored.
  4.  *
  5.  * @param element           the graph element to assign the {@code propertyKeyValues}
  6.  * @param propertyKeyValues the key/value pairs to assign to the {@code element}
  7.  * @throws ClassCastException       if the value of the key is not a {@link String}
  8.  * @throws IllegalArgumentException if the value of {@code element} is null
  9.  */
  10. public static void attachProperties(final Element element, final Object... propertyKeyValues) {
  11.   if (null == element)
  12.     throw Graph.Exceptions.argumentCanNotBeNull("element");
  13.   for (int i = 0; i < propertyKeyValues.length; i = i + 2) {
  14.     if (!propertyKeyValues[i].equals(T.id) && !propertyKeyValues[i].equals(T.label))
  15.       element.property((String) propertyKeyValues[i], propertyKeyValues[i + 1]);
  16.   }
  17. }

代码示例来源：origin: apache/tinkerpop

  1. public void createKeyIndex(final String key) {
  2.   if (null == key)
  3.     throw Graph.Exceptions.argumentCanNotBeNull("key");
  4.   if (key.isEmpty())
  5.     throw new IllegalArgumentException("The key for the index cannot be an empty string");
  6.   if (this.indexedKeys.contains(key))
  7.     return;
  8.   this.indexedKeys.add(key);
  9.   (Vertex.class.isAssignableFrom(this.indexClass) ?
  10.       this.graph.vertices.values().<T>parallelStream() :
  11.       this.graph.edges.values().<T>parallelStream())
  12.       .map(e -> new Object[]{((T) e).property(key), e})
  13.       .filter(a -> ((Property) a[0]).isPresent())
  14.       .forEach(a -> this.put(key, ((Property) a[0]).value(), (T) a[1]));
  15. }

代码示例来源：origin: apache/tinkerpop

  1. /**
  2.  * Get the value of a {@link Property} given it's key.
  3.  * The default implementation calls {@link Element#property} and then returns the associated value.
  4.  *
  5.  * @throws NoSuchElementException if the property does not exist on the {@code Element}.
  6.  */
  7. public default <V> V value(final String key) throws NoSuchElementException {
  8.   return this.<V>property(key).orElseThrow(() -> Property.Exceptions.propertyDoesNotExist(this,key));
  9. }

代码示例来源：origin: apache/tinkerpop

  1. @Override
  2. public <V> Property<V> property(final String key, final V value) {
  3.   if (state.equals(State.MAP_REDUCE))
  4.     throw GraphComputer.Exceptions.vertexPropertiesCanNotBeUpdatedInMapReduce();
  5.   return new ComputerProperty<>(this.element.property(key, value));
  6. }

代码示例来源：origin: apache/tinkerpop

  1. public final boolean test(final Element element) {
  2.   // it is OK to evaluate equality of ids via toString(), given that the test suite enforces the value of
  3.   // id().toString() to be a first class representation of the identifier. a string test is only executed
  4.   // if the predicate value is a String.  this allows stuff like: g.V().has(id,lt(10)) to work properly
  5.   if (this.key.equals(T.id.getAccessor()))
  6.     return testingIdString ? testIdAsString(element) : testId(element);
  7.   else if (this.key.equals(T.label.getAccessor()))
  8.     return testLabel(element);
  9.   else if (element instanceof VertexProperty && this.key.equals(T.value.getAccessor()))
  10.     return testValue((VertexProperty) element);
  11.   else if (element instanceof VertexProperty && this.key.equals(T.key.getAccessor()))
  12.     return testKey((VertexProperty) element);
  13.   else {
  14.     if (element instanceof Vertex) {
  15.       final Iterator<? extends Property> itty = element.properties(this.key);
  16.       while (itty.hasNext()) {
  17.         if (testValue(itty.next()))
  18.           return true;
  19.       }
  20.       return false;
  21.     } else {
  22.       final Property property = element.property(this.key);
  23.       return property.isPresent() && testValue(property);
  24.     }
  25.   }
  26. }

代码示例来源：origin: apache/tinkerpop

  1. private void assertPropertyValue(final Element element) {
  2.   if (value instanceof Map)
  3.     tryCommit(graph, graph -> {
  4.       final Map map = element.<Map>property("aKey").value();
  5.       assertEquals(((Map) value).size(), map.size());
  6.       ((Map) value).keySet().forEach(k -> assertEquals(((Map) value).get(k), map.get(k)));
  7.   else if (value instanceof List)
  8.     tryCommit(graph, graph -> {
  9.       final List l = element.<List>property("aKey").value();
  10.       assertEquals(((List) value).size(), l.size());
  11.       for (int ix = 0; ix < ((List) value).size(); ix++) {
  12.   else if (value instanceof MockSerializable)
  13.     tryCommit(graph, graph -> {
  14.       final MockSerializable mock = element.<MockSerializable>property("aKey").value();
  15.       assertEquals(((MockSerializable) value).getTestField(), mock.getTestField());
  16.     });
  17.   else if (value instanceof boolean[])
  18.     tryCommit(graph, graph -> {
  19.       final boolean[] l = element.<boolean[]>property("aKey").value();
  20.       assertEquals(((boolean[]) value).length, l.length);
  21.       for (int ix = 0; ix < ((boolean[]) value).length; ix++) {
  22.   else if (value instanceof double[])
  23.     tryCommit(graph, graph -> {
  24.       final double[] l = element.<double[]>property("aKey").value();
  25.       assertEquals(((double[]) value).length, l.length);
  26.       for (int ix = 0; ix < ((double[]) value).length; ix++) {

代码示例来源：origin: apache/tinkerpop

  1. final Property currentProperty = traverser.get().property(key);
  2.   final boolean newProperty = element instanceof Vertex ? currentProperty == VertexProperty.empty() : currentProperty == Property.empty();
  3.   final Event.ElementPropertyChangedEvent evt;
  4.   ((Vertex) element).property(key, value, vertexPropertyKeyValues);
  5. else
  6.   element.property(key, value);

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

  1. private void addTokenProperty(Element el, String propertyName, String propertyValue)
  2. {
  3.   Property<String> val = el.property(propertyName);
  4.   if (!val.isPresent())
  5.     el.property(propertyName, propertyValue);
  6.   else
  7.     el.property(propertyName, val.value() + "|" + propertyValue);
  8. }

代码示例来源：origin: uk.gov.dstl.baleen/baleen-graph

  1. private Map<String, Object> aggregateProperties(Element element) {
  2.  Map<String, Object> mention = new HashMap<>();
  3.  mention.put(ID_PROPERTY, element.id());
  4.  options
  5.    .getAggregateProperties()
  6.    .forEach(p -> element.property(p).ifPresent(value -> mention.put(p, value)));
  7.  return mention;
  8. }

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

  1. @Override
  2. public <T> T getProperty(final String name, final Class<T> type) {
  3.   final Property<T> nameProperty = getElement().property(name);
  4.   if( !nameProperty.isPresent() )
  5.     return null;
  6.   final T nameValue = nameProperty.value();
  7.   if (type.isEnum()) {
  8.     return (T) Enum.valueOf((Class<Enum>) type, nameValue.toString());
  9.   }
  10.   return nameValue;
  11. }

代码示例来源：origin: Syncleus/Ferma

  1. @Override
  2. public <T> T getProperty(final String name, final Class<T> type) {
  3.   final Property<T> nameProperty = getElement().property(name);
  4.   if( !nameProperty.isPresent() )
  5.     return null;
  6.   final T nameValue = nameProperty.value();
  7.   if (type.isEnum()) {
  8.     return (T) Enum.valueOf((Class<Enum>) type, nameValue.toString());
  9.   }
  10.   return nameValue;
  11. }

代码示例来源：origin: apache/atlas

  1. @Override
  2. public void setProperty(String propertyName, Object value) {
  3.   try {
  4.     getWrappedElement().property(propertyName, value);
  5.   } catch(SchemaViolationException e) {
  6.     throw new AtlasSchemaViolationException(e);
  7.   }
  8. }

代码示例来源：origin: Syncleus/Ferma

  1. @Override
  2.   public boolean test(final Traverser<T> toCheck) {
  3.     final Property<String> property = toCheck.get().property(typeResolutionKey);
  4.     if( !property.isPresent() )
  5.       return true;
  6.     final String resolvedType = property.value();
  7.     if( allAllowedValues.contains(resolvedType) )
  8.       return false;
  9.     else
  10.       return true;
  11.   }
  12. });

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

  1. @Override
  2. public <V> Property<V> property(final String key, final V value) {
  3.   if (state.equals(State.MAP_REDUCE))
  4.     throw GraphComputer.Exceptions.vertexPropertiesCanNotBeUpdatedInMapReduce();
  5.   return new ComputerProperty<>(this.element.property(key, value));
  6. }

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

  1. @Override
  2. public <T> T getProperty(final String name) {
  3.   final Property<T> property = getElement().<T>property(name);
  4.   if( property.isPresent())
  5.     return property.value();
  6.   else
  7.     return null;
  8. }

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

  1. @Override
  2. public Class<?> resolve(final Element element) {
  3.   final Property<String> typeResolutionName = element.<String>property(this.typeResolutionKey);
  4.   if( typeResolutionName.isPresent() )
  5.     return this.reflectionCache.forName(typeResolutionName.value());
  6.   else
  7.     return null;
  8. }

代码示例来源：origin: org.hawkular.inventory/hawkular-inventory-impl-tinkerpop

  1. @Override
  2. public Element visitMetricType(MetricType.Blueprint type, Void parameter) {
  3.   Element entity = common(path, type.getName(), type.getProperties(), MetricType.class);
  4.   entity.property(Constants.Property.__metric_data_type.name(), type.getMetricDataType()
  5.       .getDisplayName());
  6.   entity.property(Constants.Property.__metric_interval.name(), type.getCollectionInterval());
  7.   return entity;
  8. }

代码示例来源：origin: org.hawkular.inventory/hawkular-inventory-impl-tinkerpop

  1. @Override
  2. public Element visitMetric(Metric.Blueprint metric, Void parameter) {
  3.   Element entity = common(path, metric.getName(), metric.getProperties(), Metric.class);
  4.   if (metric.getCollectionInterval() != null) {
  5.     entity.property(Constants.Property.__metric_interval.name(), metric.getCollectionInterval());
  6.   }
  7.   return entity;
  8. }

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