/*
    * #%L
    * prolobjectlink-jpi-jpl
    * %%
    * Copyright (C) 2019 Prolobjectlink Project
    * %%
    * This program is free software: you can redistribute it and/or modify
    * it under the terms of the GNU Lesser General Public License as
    * published by the Free Software Foundation, either version 2.1 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 Lesser Public License for more details.
   * 
   * You should have received a copy of the GNU General Lesser Public
   * License along with this program.  If not, see
   * <http://www.gnu.org/licenses/lgpl-2.1.html>.
   * #L%
   */
  package io.github.prolobjectlink.prolog.jpl;
  
  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 jpl.Term;
  import jpl.Variable;
  
  /**
   * 
   * @author Jose Zalacain
   * @since 1.0
   */
  public class JplVariable extends JplTerm implements PrologVariable {
  
  	protected JplVariable(PrologProvider provider) {
  		super(VARIABLE_TYPE, provider, new Variable("_"));
  	}
  
  	protected JplVariable(PrologProvider provider, String name) {
  		super(VARIABLE_TYPE, provider, new Variable(name));
  	}
  
  	protected JplVariable(int type, PrologProvider provider) {
  		super(type, provider);
  	}
  
  	protected JplVariable(int type, PrologProvider provider, String name) {
  		super(type, provider, new Variable(name));
  	}
  
  	protected JplVariable(int type, PrologProvider provider, Term var) {
  		super(type, provider, var);
  	}
  
  	public boolean isAnonymous() {
  		return ((Variable) value).name().equals("_");
  	}
  
  	public String getName() {
  		return ((Variable) value).name();
  	}
  
  	public void setName(String name) {
  		this.value = new Variable(name);
  	}
  
  	public PrologTerm[] getArguments() {
  		return new JplVariable[0];
  	}
  
  	public int getArity() {
  		throw new ArityError(this);
  	}
  
  	public String getFunctor() {
  		throw new FunctorError(this);
  	}
  
  	public int getPosition() {
  		throw new UnsupportedOperationException("getPosition()");
  	}
  
  }