Interface BNode

All Superinterfaces:
Resource, Serializable, Value
All Known Implementing Classes:
AbstractBNode, CorruptIRIOrBNode, LmdbBNode, MemBNode, NativeBNode, SimpleBNode
public interface BNode extends Resource
An RDF-1.1 blank node (aka bnode, aka anonymous node). A blank node has an identifier to be able to compare it to other blank nodes internally. Please note that, conceptually, blank node equality can only be determined by examining the statements that refer to them.
See Also:

  • Nested Class Summary

    Nested classes/interfaces inherited from interface Value

    Value.Type

  • Method Summary

    Modifier and Type
    Method
    Description
    boolean
    equals(Object o)
    Compares this blank node to another object.
    String
    getID()
    Retrieves this blank node's identifier.
    default Value.Type
    getType()
     
    int
    hashCode()
    Computes the hash code of this blank node.
    default boolean
    isBNode()
    Check if the object is an instance of the given type.

    Methods inherited from interface Resource

    isResource

    Methods inherited from interface Value

    isIRI, isLiteral, isTriple, stringValue

  • Method Details

    • isBNode

      default boolean isBNode()
      Description copied from interface: Value
      Check if the object is an instance of the given type. Typically 2x than using instanceof.

      For implementers: This default implementation is overridden in the repsective sub-interface.

      Specified by:
      isBNode in interface Value
      Returns:
      true if instance of BNode

    • getType

      default Value.Type getType()
      Specified by:
      getType in interface Value

    • getID

      String getID()
      Retrieves this blank node's identifier.
      Returns:
      A blank node identifier.

    • equals

      boolean equals(Object o)
      Compares this blank node to another object.
      Overrides:
      equals in class Object
      Parameters:
      o - the object to compare this blank node to
      Returns:
      true, if the other object is an instance of BNode and their IDs are equal; false, otherwise.

    • hashCode

      int hashCode()
      Computes the hash code of this blank node.
      Overrides:
      hashCode in class Object
      Returns:
      a hash code for this blank node computed as getID().hashCode()