/*
    * Copyright 2007 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 java.util.LinkedHashMap;
  
  import javax.persistence.Column;
  import javax.persistence.Entity;
  import javax.persistence.Id;
  import javax.persistence.Table;
  
  import org.apache.commons.lang.ObjectUtils;
  import org.kuali.rice.core.jpa.annotations.Sequence;
  import org.kuali.rice.kew.bo.KewPersistableBusinessObjectBase;
  
  /**
   * 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 KewPersistableBusinessObjectBase {
      
      /**
       * Primary key
       */
      @Id
  	@Column(name="RULE_EXPR_ID")
  	private Long 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 Long getId() {
          return this.id;
      }
      /**
       * @param id the id to set
       */
      public void setId(Long 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());
     }
 	/**
 	 * This overridden method ...
 	 * 
 	 * @see org.kuali.rice.kns.bo.BusinessObjectBase#toStringMapper()
 	 */
 	@Override
 	protected LinkedHashMap toStringMapper() {
 		LinkedHashMap map = new LinkedHashMap();
 		map.put("type", type);
 		map.put("expression", expression);
 		return map;
 	}
     
     
 }