br.com.objectos.css.io.AbstractCombinatorSelector Maven / Gradle / Ivy

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/*
 * Copyright 2016 Objectos, Fábrica de Software LTDA.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package br.com.objectos.css.io;

import java.util.Objects;

import br.com.objectos.css.Selectable;
import br.com.objectos.css.Selector;

/**
 * @author [email protected] (Marcio Endo)
 */
abstract class AbstractCombinatorSelector implements AbstractSelector {

  private final Selector first;
  private final Selector second;

  public AbstractCombinatorSelector(Selector first, Selector second) {
    this.first = first;
    this.second = second;
  }

  @Override
  public final boolean equals(Object obj) {
    if (!getClass().isInstance(obj)) {
      return false;
    }
    AbstractCombinatorSelector that = (AbstractCombinatorSelector) obj;
    return first.equals(that.first)
        && second.equals(that.second)
        && equalsMore(that);
  }

  @Override
  public final int hashCode() {
    return Objects.hash(first, second);
  }

  @Override
  public final String toString() {
    return first.toString() + toStringSeparator() + second.toString();
  }

  boolean equalsMore(AbstractCombinatorSelector that) {
    return true;
  }

  boolean firstMatches(Selectable element) {
    return first.matches(element);
  }

  boolean secondMatches(Selectable element) {
    return second.matches(element);
  }

  String toStringSeparator() {
    return "";
  }

}