Module org.apache.jena.core
Package org.apache.jena.graph

Class Node_Literal

java.lang.Object
org.apache.jena.graph.Node
org.apache.jena.graph.Node_Literal
All Implemented Interfaces:
Serializable
public class Node_Literal extends Node
An RDF node holding a literal value. Literals may have datatypes.
See Also:

  • Method Details

    • isConcrete

      public boolean isConcrete()
      Description copied from class: Node
      Answer true iff this node is concrete, meaning a node that is data in an RDF Graph.
      Specified by:
      isConcrete in class Node

    • getLiteral

      public LiteralLabel getLiteral()
      Description copied from class: Node
      Answer the literal value of a literal node, or throw an UnsupportedOperationException if it's not a literal node
      Overrides:
      getLiteral in class Node

    • getLiteralValue

      public final Object getLiteralValue()
      Description copied from class: Node
      Answer the value of this node's literal value, if it is a literal; otherwise die horribly.
      Overrides:
      getLiteralValue in class Node

    • getLiteralLexicalForm

      public final String getLiteralLexicalForm()
      Description copied from class: Node
      Answer the lexical form of this node's literal value, if it is a literal; otherwise die horribly.
      Overrides:
      getLiteralLexicalForm in class Node

    • getLiteralLanguage

      public final String getLiteralLanguage()
      Description copied from class: Node
      Answer the language of this node's literal value, if it is a literal; otherwise die horribly.
      Overrides:
      getLiteralLanguage in class Node

    • getLiteralBaseDirection

      public final TextDirection getLiteralBaseDirection()
      Description copied from class: Node
      Return the base direction for a literal. Returns null if the node is a literal and does not have a base direction. Otherwise die horribly.
      Overrides:
      getLiteralBaseDirection in class Node

    • getLiteralDatatypeURI

      public final String getLiteralDatatypeURI()
      Description copied from class: Node
      Answer the data-type URI of this node's literal value, if it is a literal; otherwise die horribly.
      Overrides:
      getLiteralDatatypeURI in class Node

    • getLiteralDatatype

      public final RDFDatatype getLiteralDatatype()
      Description copied from class: Node
      Answer the RDF datatype object of this node's literal value, if it is a literal; otherwise die horribly.
      Overrides:
      getLiteralDatatype in class Node

    • isLiteral

      public boolean isLiteral()
      Description copied from class: Node
      Answer true iff this node is a literal node [subclasses override]
      Overrides:
      isLiteral in class Node

    • getIndexingValue

      public Object getIndexingValue()
      Indexing object for literals. Literal nodes defer their indexing value to the component literal.
      Overrides:
      getIndexingValue in class Node
      See Also:

    • visitWith

      public Object visitWith(NodeVisitor v)
      Description copied from class: Node
      Visit a Node and dispatch on it to the appropriate method from the NodeVisitor v.
      Specified by:
      visitWith in class Node
      Parameters:
      v - the visitor to apply to the node
      Returns:
      the value returned by the applied method

    • hashCode

      public int hashCode()
      Specified by:
      hashCode in class Node

    • equals

      public boolean equals(Object obj)
      Description copied from class: Node
      Java rules for equals. See also {#sameTermAs} and {#sameValueAs}. Nodes only equal other Nodes that have equal labels.
      Specified by:
      equals in class Node

    • sameValueAs

      public boolean sameValueAs(Object o)
      Test that two nodes are equivalent as values. In some cases this may be the same as "same term", in others equals is stricter. For example, two xsd:int literals with the same value if they are "01" and "1".

      Default implementation is to use equals, subclasses should override this.

      Overrides:
      sameValueAs in class Node

    • matches

      public boolean matches(Node x)
      Description copied from class: Node
      Answer true iff this node accepts the other one as a match. The default is an equality test; it is over-ridden in subclasses to provide the appropriate semantics for literals, ANY, and variables.
      Overrides:
      matches in class Node
      Parameters:
      x - a node to test for matching
      Returns:
      true iff this node accepts the other as a match

    • toString

      public String toString(PrefixMapping pm)
      Description copied from class: Node
      Answer a human-readable representation of the Node. For URIs, abbreviate URI. For literals, quoting literals and abbreviating datatype URI.
      Specified by:
      toString in class Node

    • toString

      public String toString()
      Description copied from class: Node
      Answer a human-readable representation of this Node.
      Specified by:
      toString in class Node