/*
    * #%L
    * prolobjectlink-jpi-jlog
    * %%
    * Copyright (C) 2019 Prolobjectlink Project
    * %%
    * This program is free software: you can redistribute it and/or modify
    * it under the terms of the GNU General Public License as
    * published by the Free Software Foundation, either version 3 of the
   * License, or (at your option) any later version.
   * 
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   * 
   * You should have received a copy of the GNU General Public
   * License along with this program.  If not, see
   * <http://www.gnu.org/licenses/gpl-3.0.html>.
   * #L%
   */
  package io.github.prolobjectlink.prolog.jlog;
  
  import static io.github.prolobjectlink.prolog.PrologTermType.VARIABLE_TYPE;
  
  import io.github.prolobjectlink.prolog.ArityError;
  import io.github.prolobjectlink.prolog.FunctorError;
  import io.github.prolobjectlink.prolog.PrologProvider;
  import io.github.prolobjectlink.prolog.PrologTerm;
  import io.github.prolobjectlink.prolog.PrologVariable;
  import ubc.cs.JLog.Terms.jTerm;
  import ubc.cs.JLog.Terms.jVariable;
  
  /**
   * 
   * @author Jose Zalacain
   * @since 1.0
   */
  public class JLogVariable extends JLogTerm implements PrologVariable {
  
  	protected JLogVariable(PrologProvider provider) {
  		super(VARIABLE_TYPE, provider, vIdexer++);
  	}
  
  	protected JLogVariable(PrologProvider provider, String name) {
  		super(VARIABLE_TYPE, provider, name, vIdexer++);
  	}
  
  	protected JLogVariable(int type, PrologProvider provider) {
  		super(type, provider);
  	}
  
  	protected JLogVariable(int type, PrologProvider provider, String name) {
  		super(type, provider, new jVariable(name));
  	}
  
  	protected JLogVariable(int type, PrologProvider provider, jTerm var) {
  		super(type, provider, var);
  	}
  
  	public boolean isAnonymous() {
  		return !((jVariable) value).isNamed();
  	}
  
  	public String getName() {
  		return ((jVariable) value).getName();
  	}
  
  	public void setName(String name) {
  		this.value = new jVariable(name);
  	}
  
  	public PrologTerm[] getArguments() {
  		return new JLogVariable[0];
  	}
  
  	public int getArity() {
  		throw new ArityError(this);
  	}
  
  	public String getFunctor() {
  		throw new FunctorError(this);
  	}
  
  	public int getPosition() {
  		return vIndex;
  	}
  
  }