Interface Literal

All Superinterfaces:

Comparable<Term>, Constant, Serializable, Term

public interface Literal
extends Constant

A Literal is a typed Constant representing strings, numbers, dates… The URI returned by getDatatype() specifies which kind of object is represented.

Author:

Clément Sipieter (INRIA) <clement@6pi.fr>

Nested Class Summary

Nested classes/interfaces inherited from interface Term

Term.Type

Method Summary

Modifier and Type	Method	Description
fr.lirmm.graphik.util.URI	getDatatype()	Returns the datatype of the literal.
String	getIdentifier()	A unique identifier of this term.
Object	getValue()	Returns the literal lexical value.

Methods inherited from interface Comparable

compareTo

Methods inherited from interface Constant

getLabel

Methods inherited from interface Term

getType, isConstant, isLiteral, isVariable

Method Details

getValue

Object getValue()

Returns the literal lexical value.

Returns:

the literal value

getDatatype

fr.lirmm.graphik.util.URI getDatatype()

Returns the datatype of the literal.

Returns:

the datatype URI

getIdentifier

String getIdentifier()

Description copied from interface: Term

A unique identifier of this term. The following constraint must be fulfil:
this.getIdentifier().equals(o.getIdentifier()) must be equivalent to this.equals(o).

Specified by:

getIdentifier in interface Constant

Specified by:

getIdentifier in interface Term

Returns:

a unique identifier of this term.