Package org.apache.tinkerpop.gremlin.structure.util.empty

Class EmptyProperty<V>

java.lang.Object
org.apache.tinkerpop.gremlin.structure.util.empty.EmptyProperty<V>
All Implemented Interfaces:
Property<V>
public final class EmptyProperty<V> extends Object implements Property<V>
Author:
Marko A. Rodriguez (http://markorodriguez.com)

  • Method Details

    • key

      public String key()
      Description copied from interface: Property
      The key of the property.
      Specified by:
      key in interface Property<V>
      Returns:
      The property key

    • value

      public V value() throws NoSuchElementException
      Description copied from interface: Property
      The value of the property.
      Specified by:
      value in interface Property<V>
      Returns:
      The property value
      Throws:
      NoSuchElementException - thrown if the property is empty

    • isPresent

      public boolean isPresent()
      Description copied from interface: Property
      Whether the property is empty or not.
      Specified by:
      isPresent in interface Property<V>
      Returns:
      True if the property exists, else false

    • element

      public Element element()
      Description copied from interface: Property
      Get the element that this property is associated with.
      Specified by:
      element in interface Property<V>
      Returns:
      The element associated with this property (i.e. Vertex, Edge, or VertexProperty).

    • remove

      public void remove()
      Description copied from interface: Property
      Remove the property from the associated element.
      Specified by:
      remove in interface Property<V>

    • toString

      public String toString()
      Overrides:
      toString in class Object

    • equals

      public boolean equals(Object object)
      Overrides:
      equals in class Object

    • hashCode

      public int hashCode()
      Overrides:
      hashCode in class Object

    • instance

      public static <V> Property<V> instance()