BeanPropertyRowMapper (yue-library-data-jdbc j8.2.2.0 API)

java.lang.Object
- ai.yue.library.data.jdbc.support.BeanPropertyRowMapper<T>

所有已实现的接口:

org.springframework.jdbc.core.RowMapper<T>
```
public class BeanPropertyRowMapper<T>
extends Object
implements org.springframework.jdbc.core.RowMapper<T>
```
增强 BeanPropertyRowMapper，支持 FieldName 注解

从以下版本开始:

2020年2月24日

作者:

ylyue

字段概要

字段
限定符和类型字段和说明

protected org.apache.commons.logging.Log logger
Logger available to subclasses.

字段
限定符和类型	字段和说明
`protected org.apache.commons.logging.Log`	`logger` Logger available to subclasses.

构造器概要

构造器
构造器和说明
`BeanPropertyRowMapper()` Create a new `BeanPropertyRowMapper` for bean-style configuration.
`BeanPropertyRowMapper(Class<T> mappedClass)` Create a new `BeanPropertyRowMapper`, accepting unpopulated properties in the target bean.
`BeanPropertyRowMapper(Class<T> mappedClass, boolean checkFullyPopulated)` Create a new `BeanPropertyRowMapper`.

方法概要

所有方法静态方法实例方法具体方法
限定符和类型	方法和说明
`protected Object`	`getColumnValue(ResultSet rs, int index, PropertyDescriptor pd)` Retrieve a JDBC object value for the specified column.
`org.springframework.core.convert.ConversionService`	`getConversionService()` Return a `ConversionService` for binding JDBC values to bean properties, or `null` if none.
`Class<T>`	`getMappedClass()` Get the class that we are mapping to.
`protected void`	`initBeanWrapper(org.springframework.beans.BeanWrapper bw)` Initialize the given BeanWrapper to be used for row mapping.
`protected void`	`initialize(Class<T> mappedClass)` Initialize the mapping meta-data for the given class.
`boolean`	`isCheckFullyPopulated()` Return whether we're strictly validating that all bean properties have been mapped from corresponding database fields.
`boolean`	`isPrimitivesDefaultedForNullValue()` Return whether we're defaulting Java primitives in the case of mapping a null value from corresponding database fields.
`protected String`	`lowerCaseName(String name)` Convert the given name to lower case.
`T`	`mapRow(ResultSet rs, int rowNumber)` Extract the values for all columns in the current row.
`static <T> BeanPropertyRowMapper<T>`	`newInstance(Class<T> mappedClass)` Static factory method to create a new `BeanPropertyRowMapper` (with the mapped class specified only once).
`void`	`setCheckFullyPopulated(boolean checkFullyPopulated)` Set whether we're strictly validating that all bean properties have been mapped from corresponding database fields.
`void`	`setConversionService(org.springframework.core.convert.ConversionService conversionService)` Set a `ConversionService` for binding JDBC values to bean properties, or `null` for none.
`void`	`setMappedClass(Class<T> mappedClass)` Set the class that each row should be mapped to.
`void`	`setPrimitivesDefaultedForNullValue(boolean primitivesDefaultedForNullValue)` Set whether we're defaulting Java primitives in the case of mapping a null value from corresponding database fields.
`protected String`	`underscoreName(String name)` Convert a name in camelCase to an underscored name in lower case.

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
  - logger
```
protected final org.apache.commons.logging.Log logger
```
    Logger available to subclasses.
- 构造器详细资料
  - BeanPropertyRowMapper
```
public BeanPropertyRowMapper()
```
    Create a new BeanPropertyRowMapper for bean-style configuration.
    
    另请参阅:
    
    setMappedClass(java.lang.Class<T>), setCheckFullyPopulated(boolean)
  - BeanPropertyRowMapper
```
public BeanPropertyRowMapper(Class<T> mappedClass)
```
    Create a new BeanPropertyRowMapper, accepting unpopulated properties in the target bean.
    Consider using the newInstance(java.lang.Class<T>) factory method instead, which allows for specifying the mapped type once only.
    
    参数:
    
    mappedClass - the class that each row should be mapped to
  - BeanPropertyRowMapper
```
public BeanPropertyRowMapper(Class<T> mappedClass,
                             boolean checkFullyPopulated)
```
    Create a new BeanPropertyRowMapper.
    
    参数:
    
    mappedClass - the class that each row should be mapped to
    
    checkFullyPopulated - whether we're strictly validating that all bean properties have been mapped from corresponding database fields
- 方法详细资料
  - setMappedClass
```
public void setMappedClass(Class<T> mappedClass)
```
    Set the class that each row should be mapped to.
  - getMappedClass
```
@Nullable
public final Class<T> getMappedClass()
```
    Get the class that we are mapping to.
  - setCheckFullyPopulated
```
public void setCheckFullyPopulated(boolean checkFullyPopulated)
```
    Set whether we're strictly validating that all bean properties have been mapped from corresponding database fields.
    Default is false, accepting unpopulated properties in the target bean.
  - isCheckFullyPopulated
```
public boolean isCheckFullyPopulated()
```
    Return whether we're strictly validating that all bean properties have been mapped from corresponding database fields.
  - setPrimitivesDefaultedForNullValue
```
public void setPrimitivesDefaultedForNullValue(boolean primitivesDefaultedForNullValue)
```
    Set whether we're defaulting Java primitives in the case of mapping a null value from corresponding database fields.
    Default is false, throwing an exception when nulls are mapped to Java primitives.
  - isPrimitivesDefaultedForNullValue
```
public boolean isPrimitivesDefaultedForNullValue()
```
    Return whether we're defaulting Java primitives in the case of mapping a null value from corresponding database fields.
  - setConversionService
```
public void setConversionService(@Nullable
                                 org.springframework.core.convert.ConversionService conversionService)
```
    Set a ConversionService for binding JDBC values to bean properties, or null for none.
    Default is a DefaultConversionService, as of Spring 4.3. This provides support for java.time conversion and other special types.
    
    从以下版本开始:
    
    4.3
    
    另请参阅:
    
    initBeanWrapper(BeanWrapper)
  - getConversionService
```
@Nullable
public org.springframework.core.convert.ConversionService getConversionService()
```
    Return a ConversionService for binding JDBC values to bean properties, or null if none.
    
    从以下版本开始:
    
    4.3
  - initialize
```
protected void initialize(Class<T> mappedClass)
```
    Initialize the mapping meta-data for the given class.
    
    参数:
    
    mappedClass - the mapped class
  - underscoreName
```
protected String underscoreName(String name)
```
    Convert a name in camelCase to an underscored name in lower case. Any upper case letters are converted to lower case with a preceding underscore.
    
    参数:
    
    name - the original name
    
    返回:
    
    the converted name
    
    从以下版本开始:
    
    4.2
    
    另请参阅:
    
    lowerCaseName(java.lang.String)
  - lowerCaseName
```
protected String lowerCaseName(String name)
```
    Convert the given name to lower case. By default, conversions will happen within the US locale.
    
    参数:
    
    name - the original name
    
    返回:
    
    the converted name
    
    从以下版本开始:
    
    4.2
  - mapRow
```
public T mapRow(ResultSet rs,
                int rowNumber)
         throws SQLException
```
    Extract the values for all columns in the current row.
    Utilizes public setters and result set meta-data.
    
    指定者:
    
    mapRow 在接口中 org.springframework.jdbc.core.RowMapper<T>
    
    抛出:
    
    SQLException
    
    另请参阅:
    
    ResultSetMetaData
  - initBeanWrapper
```
protected void initBeanWrapper(org.springframework.beans.BeanWrapper bw)
```
    Initialize the given BeanWrapper to be used for row mapping. To be called for each row.
    The default implementation applies the configured ConversionService, if any. Can be overridden in subclasses.
    
    参数:
    
    bw - the BeanWrapper to initialize
    
    另请参阅:
    
    getConversionService(), ConfigurablePropertyAccessor.setConversionService(org.springframework.core.convert.ConversionService)
  - getColumnValue
```
@Nullable
protected Object getColumnValue(ResultSet rs,
                                           int index,
                                           PropertyDescriptor pd)
                                    throws SQLException
```
    Retrieve a JDBC object value for the specified column.
    The default implementation calls JdbcUtils.getResultSetValue(java.sql.ResultSet, int, Class). Subclasses may override this to check specific value types upfront, or to post-process values return from getResultSetValue.
    
    参数:
    
    rs - is the ResultSet holding the data
    
    index - is the column index
    
    pd - the bean property that each result object is expected to match
    
    返回:
    
    the Object value
    
    抛出:
    
    SQLException - in case of extraction failure
    
    另请参阅:
    
    JdbcUtils.getResultSetValue(java.sql.ResultSet, int, Class)
  - newInstance
```
public static <T> BeanPropertyRowMapper<T> newInstance(Class<T> mappedClass)
```
    Static factory method to create a new BeanPropertyRowMapper (with the mapped class specified only once).
    
    参数:
    
    mappedClass - the class that each row should be mapped to

类 BeanPropertyRowMapper<T>

字段概要

构造器概要

方法概要

从类继承的方法 java.lang.Object

字段详细资料

logger

构造器详细资料

BeanPropertyRowMapper

BeanPropertyRowMapper

BeanPropertyRowMapper

方法详细资料

setMappedClass

getMappedClass

setCheckFullyPopulated

isCheckFullyPopulated

setPrimitivesDefaultedForNullValue

isPrimitivesDefaultedForNullValue

setConversionService

getConversionService

initialize

underscoreName

lowerCaseName

mapRow

initBeanWrapper

getColumnValue

newInstance