Coverage Report - org.apache.ojb.broker.util.sequence.HighLowSequence
 
Classes in this File Line Coverage Branch Coverage Complexity
HighLowSequence
N/A
N/A
N/A
N/A
1.143
 
 1   
 package org.apache.ojb.broker.util.sequence;
 2   
 
 3   
 /* Copyright 2002-2005 The Apache Software Foundation
 4   
  *
 5   
  * Licensed under the Apache License, Version 2.0 (the "License");
 6   
  * you may not use this file except in compliance with the License.
 7   
  * You may obtain a copy of the License at
 8   
  *
 9   
  *     http://www.apache.org/licenses/LICENSE-2.0
 10   
  *
 11   
  * Unless required by applicable law or agreed to in writing, software
 12   
  * distributed under the License is distributed on an "AS IS" BASIS,
 13   
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 14   
  * See the License for the specific language governing permissions and
 15   
  * limitations under the License.
 16   
  */
 17   
 
 18   
 import org.apache.commons.lang.builder.ToStringBuilder;
 19   
 import org.apache.commons.lang.builder.ToStringStyle;
 20   
 
 21   
 import java.io.Serializable;
 22   
 
 23   
 /**
 24   
  * The HighLowSequence is the persistent part of the {@link SequenceManagerHighLowImpl}.
 25   
  * It makes the maximum reserved key persistently available.
 26   
  *
 27   
  * @version $Id: HighLowSequence.java,v 1.1 2007-08-24 22:17:29 ewestfal Exp $
 28   
  */
 29   
 public class HighLowSequence implements Serializable
 30   
 {
 31   
         static final long serialVersionUID = -2174468157880921393L;
 32   
     private String name;
 33   
     private long maxKey;
 34   
     private int grabSize;
 35   
     private Integer version;
 36   
      // This is not stored in the DB
 37   
     protected long curVal = 0;
 38   
 
 39   
     /**
 40   
      * Default constructor for the HighLowSequence object
 41   
      */
 42   
     public HighLowSequence()
 43   
     {
 44   
         // make sure that version column in DB is never 'null'
 45   
         // to avoid problems with
 46   
         this(null, 0, 0, new Integer(0));
 47   
     }
 48   
 
 49   
     public HighLowSequence(String tableName, long maxKey, int grabSize, Integer version)
 50   
     {
 51   
         this.name = tableName;
 52   
         this.maxKey = maxKey;
 53   
         this.grabSize = grabSize;
 54   
         this.version = version;
 55   
     }
 56   
 
 57   
     public HighLowSequence getCopy()
 58   
     {
 59   
         HighLowSequence result = new HighLowSequence(this.name, this.maxKey, this.grabSize, this.version);
 60   
         result.curVal = this.curVal;
 61   
         return result;
 62   
     }
 63   
 
 64   
     public String toString()
 65   
     {
 66   
         ToStringBuilder buf = new ToStringBuilder(this, ToStringStyle.DEFAULT_STYLE);
 67   
         buf.append("name", name).
 68   
                 append("grabSize", grabSize).
 69   
                 append("version", version).
 70   
                 append("maxKey", maxKey).
 71   
                 append("currentKey", curVal);
 72   
         return buf.toString();
 73   
     }
 74   
 
 75   
     public Integer getVersion()
 76   
     {
 77   
         return version;
 78   
     }
 79   
 
 80   
     public void setVersion(Integer version)
 81   
     {
 82   
         this.version = version;
 83   
     }
 84   
 
 85   
     /**
 86   
      * Sets the name attribute of the HighLowSequence object
 87   
      *
 88   
      * @param name  The new className value
 89   
      */
 90   
     public void setName(String name)
 91   
     {
 92   
         this.name = name;
 93   
     }
 94   
 
 95   
     /**
 96   
      * Sets the grab size attribute of the HighLowSequence object
 97   
      *
 98   
      * @param grabSize  The new grabSize value
 99   
      */
 100   
     public void setGrabSize(int grabSize)
 101   
     {
 102   
         this.grabSize = grabSize;
 103   
     }
 104   
 
 105   
     /**
 106   
      * Sets the maxKey attribute of the HighLowSequence object
 107   
      *
 108   
      * @param maxKey  The new maxKey value
 109   
      */
 110   
     public void setMaxKey(long maxKey)
 111   
     {
 112   
         this.maxKey = maxKey;
 113   
     }
 114   
 
 115   
     /**
 116   
      * Gets the name attribute of the HighLowSequence object
 117   
      *
 118   
      * @return   The className value
 119   
      */
 120   
     public String getName()
 121   
     {
 122   
         return this.name;
 123   
     }
 124   
 
 125   
     /**
 126   
      * Gets the grabSize attribute of the HighLowSequence object
 127   
      *
 128   
      * @return   The grabSize value
 129   
      */
 130   
     public int getGrabSize()
 131   
     {
 132   
         return this.grabSize;
 133   
     }
 134   
 
 135   
     /**
 136   
      * Gets the next key from this sequence
 137   
      *
 138   
      * @return   The next key or 0 if sequence needs to grab new keyset
 139   
      */
 140   
     public long getNextId()
 141   
     {
 142   
         if (curVal == maxKey)
 143   
         {
 144   
             //no reserved IDs, must be reloaded, reserve new keyset and saved
 145   
             return 0;
 146   
         }
 147   
         else
 148   
         {
 149   
             curVal = curVal + 1;
 150   
             return curVal;
 151   
         }
 152   
     }
 153   
 
 154   
     /**
 155   
      * Gets the maxKey attribute of the HighLowSequence object
 156   
      *
 157   
      * @return   The maxKey value
 158   
      */
 159   
     public long getMaxKey()
 160   
     {
 161   
         return this.maxKey;
 162   
     }
 163   
 
 164   
     /**
 165   
      * Grabs the next key set, the sequence must be saved afterwards!!
 166   
      */
 167   
     public void grabNextKeySet()
 168   
     {
 169   
         curVal = maxKey;
 170   
         maxKey = maxKey + grabSize;
 171   
     }
 172   
 }
Report generated by Cobertura 1.9.4.1 on 5/9/11 7:04 PM.