eRqlEngine API documentation - http://www.wleklinski.de/rdf/

eworks.RQL.model
Class Projection

java.lang.Object
  extended byeworks.RQL.model.Projection

public class Projection
extends Object

Represents a single component of a ProjectionList, that is a certain variable which is part of a query's result (other variables may be bound as well, but will not be returned as the query's result). This aspect and terminology is copied from database query languages like SQL.

Version:
1.00 (2003-11-03)
Author:
Fabian Wleklinski (fabian@wleklinski.de)
See Also:
ProjectionList, The RDF Query Language (RQL)

Constructor Summary
Projection(Variable variable)
          Creates a new projection with a certain variable to encapsulate.
 
Method Summary
 Variable getVariable()
          Returns this projection's encapsulated variable.
 String toString()
          Returns this projection's string representation.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

Projection

public Projection(Variable variable)
Creates a new projection with a certain variable to encapsulate.

Parameters:
variable - The variable to encapsulate.
Method Detail

getVariable

public Variable getVariable()
Returns this projection's encapsulated variable.

Returns:
This projection's encapsulated variable.

toString

public String toString()
Returns this projection's string representation.

Returns:
This projection's string representation.

eRqlEngine API documentation - http://www.wleklinski.de/rdf/