/**
    * Copyright 2005-2015 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.kew.rule;
  
  import org.apache.commons.lang.ObjectUtils;
  import org.kuali.rice.kew.api.rule.RuleExpression;
  import org.kuali.rice.kew.api.rule.RuleExpressionContract;
  import org.kuali.rice.krad.bo.PersistableBusinessObjectBase;
  import org.kuali.rice.krad.data.jpa.PortableSequenceGenerator;
  
  import javax.persistence.Column;
  import javax.persistence.Entity;
  import javax.persistence.GeneratedValue;
  import javax.persistence.Id;
  import javax.persistence.Table;
  
  /**
   * BO for rule expressions 
   * @author Kuali Rice Team (rice.collab@kuali.org)
   */
  @Entity
  @Table(name="KREW_RULE_EXPR_T")
  //@Sequence(name="KREW_RULE_EXPR_S", property="id")
  public class RuleExpressionDef extends PersistableBusinessObjectBase implements RuleExpressionContract {
      
      /**
       * Primary key
       */
      @Id
      @PortableSequenceGenerator(name="KREW_RULE_EXPR_S")
      @GeneratedValue(generator="KREW_RULE_EXPR_S")
  	@Column(name="RULE_EXPR_ID")
  	private String id;
      /**
       * The type of the expression
       */
      @Column(name="TYP")
  	private String type;
      /**
       * The content of the expression
       */
      @Column(name="RULE_EXPR", nullable=true)
  	private String expression;
      /**
       * @return the id
       */
      public String getId() {
          return this.id;
      }
      /**
       * @param id the id to set
       */
      public void setId(String id) {
          this.id = id;
      }
      /**
       * @return the type
       */
      public String getType() {
          return this.type;
      }
      /**
       * @param type the type to set
       */
      public void setType(String type) {
          this.type = type;
      }
      /**
       * @return the expression
       */
      public String getExpression() {
          return this.expression;
      }
      /**
       * @param expression the expression to set
       */
      public void setExpression(String expression) {
          this.expression = expression;
      }
  
      /**
       * Returns whether the object is an <i>equivalent</i> rule expression, i.e.
       * the type and expression are the same.  This is necessary for rule duplicate
       * detection.
       * @see java.lang.Object#equals(java.lang.Object)
       */
     @Override
     public boolean equals(Object obj) {
         if (obj == null) return false;
         if (!(obj instanceof RuleExpressionDef)) return false;
         RuleExpressionDef arg = (RuleExpressionDef) obj;
         return ObjectUtils.equals(type, arg.getType()) && ObjectUtils.equals(expression, arg.getExpression());
     }
 
     /**
      * Converts a mutable bo to its immutable counterpart
      * @param bo the mutable business object
      * @return the immutable object
      */
     public static org.kuali.rice.kew.api.rule.RuleExpression to(RuleExpressionDef bo) {
         if (bo == null) {
             return null;
         }
 
         return RuleExpression.Builder.create(bo).build();
     }
 
     /**
      * Converts a immutable object to its mutable counterpart
      * @param im immutable object
      * @return the mutable bo
      */
     public static RuleExpressionDef from(RuleExpression im) {
         if (im == null) {
             return null;
         }
 
         RuleExpressionDef bo = new RuleExpressionDef();
         bo.setId(im.getId());
         bo.setType(im.getType());
         bo.setExpression(im.getExpression());
         bo.setVersionNumber(im.getVersionNumber());
         bo.setObjectId(im.getObjectId());
 
         return bo;
     }
 }