content: /*
   * Created on Sep 26, 2010
   *
   * 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.
   *
   * Copyright @2010-2012 the original author or authors.
   */
  package org.fest.assertions.core;
  
  /**
   * Mechanism for extending assertion classes.
   *
   * @param <S> the "self" type of this assertion class. Please read &quot;<a href="http://bit.ly/anMa4g"
   *          target="_blank">Emulating 'self types' using Java Generics to simplify fluent API implementation</a>&quot;
   *          for more details.
   * @param <A> the type of the <em>actual</em> value.
   *
   * @author Alex Ruiz
   * @author Mikhail Mazursky
   */
  public interface ExtensionPoints<S, A> {
  
    /**
     * Verifies that the <em>actual</em> value satisfies the given matcher. This method is an alias for
     * {@link #has(Matcher)}.
     *
     * @param matcher the given matcher.
     * @return {@code this ExtensionPoints} object.
     * @throws NullPointerException if the given matcher is {@code null}.
     * @throws AssertionError if the <em>actual</em> value does not satisfy the given matcher.
     * @see #is(Matcher)
     */
    S is(Matcher<? super A> matcher);
  
    /**
     * Verifies that the <em>actual</em> value does not satisfy the given matcher. This method is an alias for
     * {@link #doesNotHave(Matcher)}.
     *
     * @param matcher the given matcher.
     * @return {@code this ExtensionPoints} object.
     * @throws NullPointerException if the given matcher is {@code null}.
     * @throws AssertionError if the <em>actual</em> value satisfies the given matcher.
     * @see #isNot(Matcher)
     */
    S isNot(Matcher<? super A> matcher);
  
    /**
     * Verifies that the <em>actual</em> value satisfies the given matcher. This method is an alias for
     * {@link #is(Matcher)}.
     *
     * @param matcher the given matcher.
     * @return {@code this ExtensionPoints} object.
     * @throws NullPointerException if the given matcher is {@code null}.
     * @throws AssertionError if the <em>actual</em> value does not satisfy the given matcher.
     * @see #is(Matcher)
     */
    S has(Matcher<? super A> matcher);
  
    /**
     * Verifies that the <em>actual</em> value does not satisfy the given matcher. This method is an alias for
     * {@link #isNot(Matcher)}.
     *
     * @param matcher the given matcher.
     * @return {@code this ExtensionPoints} object.
     * @throws NullPointerException if the given matcher is {@code null}.
     * @throws AssertionError if the <em>actual</em> value satisfies the given matcher.
     * @see #isNot(Matcher)
     */
    S doesNotHave(Matcher<? super A> matcher);
  }