content: /**
   * Copyright (c) 2013, Andre Steingress
   * All rights reserved.
   *
   * 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 Andre Steingress 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, 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.
   */
  package org.gcontracts.domain;
  
  import org.codehaus.groovy.ast.ClassNode;
  import org.gcontracts.util.Validate;
  
  /**
   * <p>Represents a contract between a supplier and a customer of a class.</p>
   *
   * @author ast
   */
  public class Contract {
  
      private final ClassNode classNode;
  
      private ClassInvariant classInvariant = ClassInvariant.DEFAULT;
      private AssertionMap<Precondition> preconditions;
      private AssertionMap<Postcondition> postconditions;
  
      public Contract(final ClassNode classNode)  {
          Validate.notNull(classNode);
  
          this.classNode = classNode;
          this.preconditions = new AssertionMap<Precondition>();
          this.postconditions = new AssertionMap<Postcondition>();
      }
  
      public ClassNode classNode() { return classNode; }
  
      public void setClassInvariant(final ClassInvariant classInvariant)  {
          Validate.notNull(classInvariant);
          this.classInvariant = classInvariant;
      }
  
      public AssertionMap<Precondition> preconditions() { return preconditions; }
      public AssertionMap<Postcondition> postconditions() { return postconditions; }
  
      public boolean hasDefaultClassInvariant() { return classInvariant == ClassInvariant.DEFAULT; }
      public ClassInvariant classInvariant() { return classInvariant; }
  }
  