/*
    * #%L
    * prolobjectlink-jpi-jpl7
    * %%
    * Copyright (C) 2019 Prolobjectlink Project
    * %%
    * Redistribution and use in source and binary forms, with or without
    * modification, are permitted provided that the following conditions are met:
    * 
   * 1. Redistributions of source code must retain the above copyright notice,
   *    this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright notice,
   *    this list of conditions and the following disclaimer in the documentation
   *    and/or other materials provided with the distribution.
   * 
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
   * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   * POSSIBILITY OF SUCH DAMAGE.
   * #L%
   */
  package io.github.prolobjectlink.prolog.jpl7;
  
  import static io.github.prolobjectlink.prolog.PrologTermType.VARIABLE_TYPE;
  
  import org.jpl7.Term;
  import org.jpl7.Variable;
  
  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;
  
  /**
   * 
   * @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()");
  	}
  
  }