bboss persistent 1.0.4 发布,功能变更清单见正文

bboss persistent 1.0.4 发布,下载地址：

https://sourceforge.net/project/showfiles.php?group_id=238653&package_id=302766&release_id=688812 

 

功能变更清单如下：

 

o 调整com.frameworkset.common.poolman.handle.RowHandler

将原来的接口改为抽象类
将接口方法public void handleRow(Object rowValue,Record origine)
改为抽象方法public abstract void handleRow(Object rowValue,Record origine)
增加init和destroy方法，以便进行查询源数据和数据库名称dbname的初始化和销毁，这些信息对存储过程和函数调用中的行处理器不起作用。

增加方法
public SchemaType getSchemaType(String colName)
以便在行处理器中 获取列的java数据类型名称和数据库类型名称
       
o 修改com/frameworkset/common/poolman/Record.java类
增加记录的原始行号信息和get/set方法：
/**
  * 设置记录对应的数据库原始记录行号
  */
 private int rowid;
 public void setRowid(int rowid)
 {
     this.rowid = rowid;
 }
 public int getRowid()
        {
            return rowid;
        }
 
o ResoultMap类中对Record类的初始化方法进行了优化

o 扩展xml行处理器

可以自定义根节点名称
可以自定义字符集
可以自定义版本号
添加构造xml节点串的两个方法

实现
在com.frameworkset.common.poolman.handle.XMLRowHandler程序中添加以下方法：
        /**
         * rowValue类型为StringBuffer
         */
 public void handleRow(Object rowValue,Record origine) 的默认实现
 
/**
  * 返回xml串的根节点名称
  * 缺省为records，用户可以扩展这个方法
  * @return
  */
 public String getRootName()
 {
     return "records";
 }
 
 /**
         * 返回xml的编码字符集
         * 缺省为gb2312，用户可以扩展这个方法
         * @return
         */
        public String getEncoding()
        {
            return "gb2312";
        }
       
       
        /**
         * 返回xml语法的版本号
         * 缺省为1.0，用户可以扩展这个方法
         * @return
         */
        public String getVersion()
        {
            return "1.0";
        }

构建xml节点串的方法
public static String buildNode(String columnNodeName,//xml节点名称
                                      String columnName,//结点列名name属性的值
                                      String columnType, //结点列jdbc类型属性名称值
                                      String columnJavaType, //结点列java类型属性名称值
                                      String value,//结点值
                                      String split)//结点与节点之间的分割符

public static String buildNode(String columnNodeName, //xml节点名称
                                Map attributes,//节点属性集
                                String value, //节点值
                                String split)//节点间的分割符
这些方法都有缺省实现，如果不一致的话可以在子类中覆盖。

使用实例
public class TestXMLHandler {
    public static void testCustomXMLHandler()
    {
        PreparedDBUtil db = new PreparedDBUtil();
        try {
            db.preparedSelect("select * from tableinfo");
//            String results_1 = db.executePreparedForXML();
            String results_ = db.executePreparedForXML(new XMLRowHandler(){
//
//              
                public void handleRow(Object rowValue, Record origine)  {
                    StringBuffer record = (StringBuffer )rowValue;
                    record.append("    <record>\r\n");
  
                    try {
                        SchemaType schemaType = super.getSchemaType("TABLE_NAME");
                        record.append(super.buildNode("attribute",
                                                      "TABLE_NAME",
                                                      schemaType.getName(),
                                                      schemaType.getJavaType(),
                                                      origine.getString("TABLE_NAME"),
                                                      "\r\n"));
                        schemaType = super.getSchemaType("table_id_name");
                        record.append(super.buildNode("attribute",
                                                      "table_id_name",
                                                      schemaType.getName(),
                                                      schemaType.getJavaType(), 
                                                      origine.getString("table_id_name"),
                                                      "\r\n"));
                        schemaType = super.getSchemaType("TABLE_ID_INCREMENT");
                        record.append(super.buildNode("attribute",
                                                      "TABLE_ID_INCREMENT",
                                                      schemaType.getName(),
                                                      schemaType.getJavaType(), 
                                                      origine.getString("TABLE_ID_INCREMENT"),
                                                      "\r\n"));
                       
                        schemaType = super.getSchemaType("TABLE_ID_GENERATOR");
                        record.append(super.buildNode("attribute",
                                                      "TABLE_ID_GENERATOR",
                                                      schemaType.getName(),
                                                      schemaType.getJavaType(),
                                                      origine.getString("TABLE_ID_GENERATOR"),
                                                      "\r\n"));
                        schemaType = super.getSchemaType("TABLE_ID_TYPE");
                        record.append(super.buildNode("attribute",
                                                      "TABLE_ID_TYPE",
                                                      schemaType.getName(),
                                                      schemaType.getJavaType(), 
                                                      origine.getString("TABLE_ID_TYPE"),
                                                      "\r\n"));
                       
                    } catch (SQLException e) {
                       
                        throw new RowHandlerException(e);
                    }
                    record.append("    </record>\r\n");
                }

               
                public String getEncoding() {
                    // TODO Auto-generated method stub
                    return "gbk";
                }

              
                public String getRootName() {
                    // TODO Auto-generated method stub
                    return "tableinfo";
                }

              
                public String getVersion() {
                    // TODO Auto-generated method stub
                    return "2.0";
                }
               
            });
           
            System.out.println(results_);
//            System.out.println(results_1);
        } catch (SQLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
       
    }
   
    public static void testDefualtXML()
    {
        PreparedDBUtil db = new PreparedDBUtil();
        try {
            db.preparedSelect("select * from tableinfo");
            String results_1 = db.executePreparedForXML();

            System.out.println(results_1);
        } catch (SQLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
   
    public static void main(String[] args)
    {
        testCustomXMLHandler();
    }
}

o 修改bug，执行o/r mapping 查询时，如果数字类型/byte/boolean的数据值为null时，会报以下异常：
Build ValueObject for ResultSet[select * from mq_node where NODE_NAME='test'] Get Column[CA_ID] from  ResultSet to [e-mail]_ID[int] failed:null
ERROR 01-06 17:30:25,093 - Build ValueObject for ResultSet[select * from mq_node where NODE_NAME='test'] Get Column[CA_ID] from  ResultSet to [e-mail]_ID[int] failed:null
java.lang.IllegalArgumentException
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
 at java.lang.reflect.Method.invoke(Method.java:585)
 at com.frameworkset.common.poolman.ResultMap.buildValueObject(ResultMap.java:193)
 at com.frameworkset.common.poolman.StatementInfo.buildResultMap(StatementInfo.java:731)
 at com.frameworkset.common.poolman.util.SQLUtil.innerExecuteJDBC(SQLUtil.java:540)
 at com.frameworkset.common.poolman.DBUtil.executeSelectForObject(DBUtil.java:3753)
 at com.frameworkset.common.poolman.DBUtil.executeSelectForObject(DBUtil.java:3742)
 at com.frameworkset.common.poolman.DBUtil.executeSelectForObject(DBUtil.java:3618)
 at com.chinacreator.mq.client.MqNodeService.getNodeByName(MqNodeService.java:150)
 at be.ibridge.kettle.consumer_stream.ConsumerService.buildMQClient(ConsumerService.java:63)
 at be.ibridge.kettle.consumer_stream.Consumer.processRow(Consumer.java:155)
 at be.ibridge.kettle.consumer_stream.Consumer.run(Consumer.java:200)

原因分析：
数据库查询返回的结果集，由于数字类型/byte/boolean为null时，原来的处理程序直接返回null，而不是返回具体的数字类型/byte/boolean的缺省值，导致将null值设置给对象属性失败。

解决办法，修改对应数字类型/byte/boolean的handle接口提供null值的转换函数,将null转换为相应的缺省值。
com/frameworkset/common/poolman/handle/type/BigDecimalTypeHandler.java
com/frameworkset/common/poolman/handle/type/BooleanTypeHandler.java
com/frameworkset/common/poolman/handle/type/ByteTypeHandler.java
com/frameworkset/common/poolman/handle/type/DoubleTypeHandler.java
com/frameworkset/common/poolman/handle/type/FloatTypeHandler.java
om/frameworkset/common/poolman/handle/type/IntegerTypeHandler.java
com/frameworkset/common/poolman/handle/type/LongTypeHandler.java
com/frameworkset/common/poolman/handle/type/ShortTypeHandler.java

评论

1 楼 yin_bp 2009-06-20  

bboss aop最新版本： bboss aop 1.0.6 ，下载地址：https://sourceforge.net/project/showfiles.php?group_id=238653&package_id=290546&release_id=658454