org.beetl.sql.core.mapping

类 BeanProcessor

java.lang.Object

org.beetl.sql.core.mapping.BeanProcessor

public class BeanProcessor
extends Object

ResultSet处理类，负责转换到Bean或者Map

字段概要

字段

限定符和类型	字段和说明
protected String	dbName
protected int	dbType
protected JavaSqlTypeHandler	defaultHandler
protected Map<Class,JavaSqlTypeHandler>	handlers
protected NameConversion	nc
protected static int	PROPERTY_NOT_FOUND
protected SQLManager	sm

构造器概要

构造器

构造器和说明
BeanProcessor(SQLManager sm)

方法概要

限定符和类型	方法和说明
protected void	callSetter(Object target, PropertyDescriptor prop, Object value, Class<?> type) 根据setter方法设置值
protected <T> T	createBean(String sqlId, ResultSet rs, Class<T> type, PropertyDescriptor[] props, int[] columnToProperty) 创建 一个新的对象，并从ResultSet初始化
JavaSqlTypeHandler	getDefaultHandler()
protected int[]	mapColumnsToProperties(Class<?> c, ResultSetMetaData rsmd, PropertyDescriptor[] props) 记录存在name在 PropertyDescriptor中的下标
protected <T> T	newInstance(Class<T> c) 反射对象
protected Object	noMappingValue(TypeParameter tp)
void	setDefaultHandler(JavaSqlTypeHandler defaultHandler)
void	setPreparedStatementPara(String sqlId, PreparedStatement ps, List<SQLParameter> objs) 设置PreparedStatement的参数，beetlsql可以重载此类实现个性化设置方案，也可可以根据根据sqlId做一定个性化设置
Object	toBaseType(String sqlId, Class<?> c, ResultSet rs)
<T> T	toBean(ResultSet rs, Class<T> type) 将ResultSet映射为一个POJO对象
<T> T	toBean(String sqlId, ResultSet rs, Class<T> type) 将ResultSet映射为一个POJO对象
<T> List<T>	toBeanList(String sqlId, ResultSet rs, Class<T> type) 将ResultSet映射为一个List<POJO>集合
Map<String,Object>	toMap(String sqlId, Class<?> c, ResultSet rs) 将rs转化为Map<String ,Object>

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

字段详细资料

PROPERTY_NOT_FOUND

protected static final int PROPERTY_NOT_FOUND

另请参阅:

常量字段值

nc

protected NameConversion nc

sm

protected SQLManager sm

dbName

protected String dbName

dbType

protected int dbType

handlers

protected Map<Class,JavaSqlTypeHandler> handlers

defaultHandler

protected JavaSqlTypeHandler defaultHandler

构造器详细资料

BeanProcessor

public BeanProcessor(SQLManager sm)

方法详细资料

toBean

public <T> T toBean(String sqlId,
                    ResultSet rs,
                    Class<T> type)
             throws SQLException

将ResultSet映射为一个POJO对象

参数:

rs -

type -

返回:

抛出:

SQLException

toBean

public <T> T toBean(ResultSet rs,
                    Class<T> type)
             throws SQLException

将ResultSet映射为一个POJO对象

参数:

rs -

type -

返回:

抛出:

SQLException

toBeanList

public <T> List<T> toBeanList(String sqlId,
                              ResultSet rs,
                              Class<T> type)
                       throws SQLException

将ResultSet映射为一个List<POJO>集合

参数:

rs -

type -

返回:

抛出:

SQLException

toMap

public Map<String,Object> toMap(String sqlId,
                                Class<?> c,
                                ResultSet rs)
                         throws SQLException

将rs转化为Map<String ,Object>

参数:

c -

rs -

返回:

抛出:

SQLException

toBaseType

public Object toBaseType(String sqlId,
                         Class<?> c,
                         ResultSet rs)
                  throws SQLException

抛出:

SQLException

createBean

protected <T> T createBean(String sqlId,
                           ResultSet rs,
                           Class<T> type,
                           PropertyDescriptor[] props,
                           int[] columnToProperty)
                    throws SQLException

创建 一个新的对象，并从ResultSet初始化

参数:

rs -

type -

props -

columnToProperty -

返回:

抛出:

SQLException

noMappingValue

protected Object noMappingValue(TypeParameter tp)
                         throws SQLException

抛出:

SQLException

callSetter

protected void callSetter(Object target,
                          PropertyDescriptor prop,
                          Object value,
                          Class<?> type)
                   throws SQLException

根据setter方法设置值

参数:

target -

prop -

value -

抛出:

SQLException

newInstance

protected <T> T newInstance(Class<T> c)
                     throws SQLException

反射对象

参数:

c -

返回:

抛出:

SQLException

mapColumnsToProperties

protected int[] mapColumnsToProperties(Class<?> c,
                                       ResultSetMetaData rsmd,
                                       PropertyDescriptor[] props)
                                throws SQLException

记录存在name在 PropertyDescriptor中的下标

参数:

c -

rsmd -

props -

返回:

抛出:

SQLException

setPreparedStatementPara

public void setPreparedStatementPara(String sqlId,
                                     PreparedStatement ps,
                                     List<SQLParameter> objs)
                              throws SQLException

设置PreparedStatement的参数，beetlsql可以重载此类实现个性化设置方案，也可可以根据根据sqlId做一定个性化设置

参数:

sqlId -

ps -

objs -

抛出:

SQLException

getDefaultHandler

public JavaSqlTypeHandler getDefaultHandler()

setDefaultHandler

public void setDefaultHandler(JavaSqlTypeHandler defaultHandler)