InformalGate.java

/*-
 * #%L
 * Strange
 * %%
 * Copyright (C) 2020 Johan Vos
 * %%
 * 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.
 * 
 * 3. Neither the name of the Johan Vos nor the names of its contributors
 *    may be used to endorse or promote products derived from this software without
 *    specific prior written permission.
 * 
 * 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 HOLDER 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,
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 * #L%
 */
package org.redfx.strange.gate;

import org.redfx.strange.Complex;
import org.redfx.strange.Gate;

import java.util.Collections;
import java.util.LinkedList;
import java.util.List;

/**
 * <p>Abstract InformalGate class.</p>
 *
 * @author alain
 * @version $Id: $Id
 */
public abstract class InformalGate implements Gate {

    private List<Integer> affected = new LinkedList<>();
    private int mainIndex;

    /**
     * <p>Constructor for InformalGate.</p>
     */
    public InformalGate() {
        this(0);
    }

    /**
     * <p>Constructor for InformalGate.</p>
     *
     * @param idx a int
     */
    public InformalGate(int idx) {
        this.mainIndex = idx;
        affected.add(idx);
    }

    /** {@inheritDoc} */
    @Override
    public void setMainQubitIndex(int idx) {

    }

    /** {@inheritDoc} */
    @Override
    public int getMainQubitIndex() {
        return 0;
    }

    /** {@inheritDoc} */
    @Override
    public void setAdditionalQubit(int idx, int cnt) {

    }

    /** {@inheritDoc} */
    @Override
    public int getHighestAffectedQubitIndex() {
        return Collections.max(affected);
    }

    /** {@inheritDoc} */
    @Override
    public List<Integer> getAffectedQubitIndexes() {
        return affected;
    }


    /** {@inheritDoc} */
    @Override
    public String getGroup() {
        return "informal";
    }

    /** {@inheritDoc} */
    @Override
    public Complex[][] getMatrix() {
        return new Complex[0][];
    }

}