Package org.eclipse.rdf4j.model.base

Class AbstractLiteral

java.lang.Object
org.eclipse.rdf4j.model.base.AbstractLiteral
All Implemented Interfaces:
Serializable, Literal, Value
Direct Known Subclasses:
LmdbLiteral, SimpleLiteral
public abstract class AbstractLiteral extends Object implements Literal
Base class for Literal, offering common functionality.
Since:
3.5.0
Author:
Alessandro Bollini
See Also:

  • Constructor Details

    • AbstractLiteral

      public AbstractLiteral()

  • Method Details

    • stringValue

      public String stringValue()
      Description copied from interface: Value
      Returns the String-value of a Value object. This returns either a Literal's label, a IRI's URI or a BNode's ID.
      Specified by:
      stringValue in interface Value

    • booleanValue

      public boolean booleanValue()
      Description copied from interface: Literal
      Returns the boolean value of this literal.
      Specified by:
      booleanValue in interface Literal
      Returns:
      The boolean value of the literal.

    • byteValue

      public byte byteValue()
      Description copied from interface: Literal
      Returns the byte value of this literal.
      Specified by:
      byteValue in interface Literal
      Returns:
      The byte value of the literal.

    • shortValue

      public short shortValue()
      Description copied from interface: Literal
      Returns the short value of this literal.
      Specified by:
      shortValue in interface Literal
      Returns:
      The short value of the literal.

    • intValue

      public int intValue()
      Description copied from interface: Literal
      Returns the int value of this literal.
      Specified by:
      intValue in interface Literal
      Returns:
      The int value of the literal.

    • longValue

      public long longValue()
      Description copied from interface: Literal
      Returns the long value of this literal.
      Specified by:
      longValue in interface Literal
      Returns:
      The long value of the literal.

    • floatValue

      public float floatValue()
      Description copied from interface: Literal
      Returns the float value of this literal.
      Specified by:
      floatValue in interface Literal
      Returns:
      The float value of the literal.

    • doubleValue

      public double doubleValue()
      Description copied from interface: Literal
      Returns the double value of this literal.
      Specified by:
      doubleValue in interface Literal
      Returns:
      The double value of the literal.

    • integerValue

      public BigInteger integerValue()
      Description copied from interface: Literal
      Returns the integer value of this literal.
      Specified by:
      integerValue in interface Literal
      Returns:
      The integer value of the literal.

    • decimalValue

      public BigDecimal decimalValue()
      Description copied from interface: Literal
      Returns the decimal value of this literal.
      Specified by:
      decimalValue in interface Literal
      Returns:
      The decimal value of the literal.

    • temporalAccessorValue

      public TemporalAccessor temporalAccessorValue() throws DateTimeException
      Description copied from interface: Literal
      Retrieves the temporal accessor value of this literal.

      A temporal accessor representation can be given for literals whose label conforms to the syntax of the following XML Schema 1.1 date/time datatypes:

      Temporal accessor representations may be converted to specific java.time values like OffsetDateTime using target static factory methods, for instance OffsetDateTime.from(literal.temporalAccessorValue()).

      Note however that java.time doesn't include dedicated classes for some legal XML Schema date/time values, like offset dates (for instance, 2020-11-16+01:00) and xsd:gDay (for instance, ---16).

      Specified by:
      temporalAccessorValue in interface Literal
      Returns:
      the temporal accessor value of this literal
      Throws:
      DateTimeException - if this literal cannot be represented by a TemporalAccessor value
      See Also:

    • temporalAmountValue

      public TemporalAmount temporalAmountValue() throws DateTimeException
      Description copied from interface: Literal
      Retrieves the temporal amount value of this literal.

      A temporal amount representation can be given for literals whose label conforms to the syntax of the XML Schema 2 xsd:duration datatype.

      The adoption of the XML Schema 2 definition is a known deviation from the RDF 1.1 standard; well-formedness rules are relaxed to consider all duration components as optional and freely mixable.

      Temporal amount representations may be converted to specific java.time values like Duration using target static factory methods, for instance Duration.from(literal.temporalAmountValue()).

      Note however that java.time doesn't include dedicated classes for legal XML Schema duration values including both date and time components (for instance, P1YT23H).

      Specified by:
      temporalAmountValue in interface Literal
      Returns:
      the temporal amount value of this literal
      Throws:
      DateTimeException - if this literal cannot be represented by a TemporalAmount value
      See Also:

    • calendarValue

      public XMLGregorianCalendar calendarValue()
      Description copied from interface: Literal
      Returns the XMLGregorianCalendar value of this literal. A calendar representation can be given for literals whose label conforms to the syntax of the following XML Schema datatypes: dateTime, time, date, gYearMonth, gMonthDay, gYear, gMonth or gDay.
      Specified by:
      calendarValue in interface Literal
      Returns:
      The calendar value of the literal.

    • equals

      public boolean equals(Object o)
      Description copied from interface: Literal
      Compares this literal to another object.
      Specified by:
      equals in interface Literal
      Overrides:
      equals in class Object
      Parameters:
      o - the object to compare this literal to
      Returns:
      true, if the other object is an instance of Literal and if their labels, language tags and datatypes are equal

    • hashCode

      public int hashCode()
      Description copied from interface: Literal
      Computes the hash code of this literal.
      Specified by:
      hashCode in interface Literal
      Overrides:
      hashCode in class Object
      Returns:
      a hash code for this literal computed as Literal.getLabel().hashCode()

    • toString

      public String toString()
      Overrides:
      toString in class Object