/*
    * Copyright 2007-2009 The Kuali Foundation
    * 
    * Licensed under the Educational Community 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.opensource.org/licenses/ecl2.php
    * 
   * 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 org.kuali.rice.kns.service.impl;
  
  import org.kuali.rice.kns.service.ParameterEvaluator;
  
  /**
   * This implementation of ParameterEvaluator is returned by ParameterServiceImpl when evaluation involves a constraining value and
   * neither the allow nor deny parameter have restrictions for that value.
   */
  public class AlwaysSucceedParameterEvaluatorImpl implements ParameterEvaluator {
      private static final AlwaysSucceedParameterEvaluatorImpl instance = new AlwaysSucceedParameterEvaluatorImpl();
  
      public static ParameterEvaluator getInstance() {
          return instance;
      }
  
      private AlwaysSucceedParameterEvaluatorImpl() {
      }
  
      public boolean constraintIsAllow() {
          return Boolean.TRUE;
      }
  
  
      public boolean evaluateAndAddError(Class businessObjectOrDocumentClass, String constrainedPropertyName, String userEditablePropertyName) {
          return evaluationSucceeds();
      }
  
      public boolean evaluateAndAddError(Class businessObjectOrDocumentClass, String constrainedPropertyName) {
          return evaluationSucceeds();
      }
  
      public boolean evaluationSucceeds() {
          return Boolean.TRUE;
      }
  
      public String getName() {
          return AlwaysSucceedParameterEvaluatorImpl.class.getName();
      }
  
      public String getParameterValuesForMessage() {
          return AlwaysSucceedParameterEvaluatorImpl.class.getName();
      }
  
      public String getValue() {
          return AlwaysSucceedParameterEvaluatorImpl.class.getName();
      }
  
      public void setConstrainedValue(String constrainedValue) {
      }
  }