/*
    * Copyright (C) 2007 ETH Zurich
    *
    * This file is part of Fosstrak (www.fosstrak.org).
    *
    * Fosstrak is free software; you can redistribute it and/or
    * modify it under the terms of the GNU Lesser General Public
    * License version 2.1, as published by the Free Software Foundation.
    *
   * Fosstrak is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
   * Lesser General Public License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with Fosstrak; if not, write to the Free
   * Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
   * Boston, MA  02110-1301  USA
   */
  
  package org.fosstrak.epcis.repository.query;
  
  import java.util.ArrayList;
  import java.util.List;
  
  /**
   * TODO: javadoc
   * 
   * @author Marco Steybe
   */
  public class SimpleEventQueryDTO {
  
      private List<EventQueryParam> eventQueryParams;
  
      protected String eventType;
      private int maxEventCount = -1;
      private int limit = -1;
      private String orderBy = null;
      private OrderDirection orderDirection = null;
      private boolean isAnyEpc = false;
  
      public enum OrderDirection {
          ASC, DESC
      }
  
      public enum Operation {
          EQ, LT, GT, LE, GE, HASATTR, EQATTR, MATCH, WD, EXISTS
      }
  
      public SimpleEventQueryDTO(String eventType) {
          this.eventType = eventType;
          resetQuery();
      }
  
      public void addEventQueryParam(String eventField, Operation op, Object value) {
          eventQueryParams.add(new EventQueryParam(eventField, op, value));
      }
  
      public void addEventQueryParam(EventQueryParam queryParam) {
          eventQueryParams.add(queryParam);
      }
  
      public String getEventType() {
          return eventType;
      }
  
      public int getLimit() {
          return limit;
      }
  
      public int getMaxEventCount() {
          return maxEventCount;
      }
  
      public List<EventQueryParam> getEventQueryParams() {
          return eventQueryParams;
      }
  
      public String getOrderBy() {
          return orderBy;
      }
  
      public OrderDirection getOrderDirection() {
          return orderDirection;
      }
  
      public boolean isAnyEpc() {
          return isAnyEpc;
      }
  
      public void setIsAnyEpc(boolean isAnyEpc) {
          this.isAnyEpc = isAnyEpc;
      }
  
      public void setLimit(int limit) {
          this.limit = limit;
      }
  
      public void setMaxEventCount(int maxEventCount) {
         this.maxEventCount = maxEventCount;
     }
 
     public void setOrderBy(String orderBy) {
         this.orderBy = orderBy;
     }
 
     public void setOrderDirection(OrderDirection orderDirection) {
         this.orderDirection = orderDirection;
     }
 
     public void resetQuery() {
         eventQueryParams = new ArrayList<EventQueryParam>();
         maxEventCount = -1;
         limit = -1;
         orderBy = null;
         orderDirection = null;
         isAnyEpc = false;
     }
 
     public static class EventQueryParam {
         private String eventField;
         private Operation op;
         private Object value;
 
         public EventQueryParam() {
         }
 
         public EventQueryParam(String eventField, Operation op, Object value) {
             this.eventField = eventField;
             this.op = op;
             this.value = value;
         }
 
         public String getEventField() {
             return eventField;
         }
 
         public void setEventField(String eventField) {
             this.eventField = eventField;
         }
 
         public Operation getOp() {
             return op;
         }
 
         public void setOp(Operation op) {
             this.op = op;
         }
 
         public Object getValue() {
             return value;
         }
 
         public void setValue(Object value) {
             this.value = value;
         }
     }
 }