SqlReturnType (Spring Framework 4.3.30.RELEASE API)

```
public interface SqlReturnType
```
Interface to be implemented for retrieving values for more complex database-specific types not supported by the standard CallableStatement.getObject method.
Implementations perform the actual work of getting the actual values. They must implement the callback method getTypeValue which can throw SQLExceptions that will be caught and translated by the calling code. This callback method has access to the underlying Connection via the given CallableStatement object, if that should be needed to create any database-specific objects.
从以下版本开始:
1.1
作者:
Thomas Risberg
另请参阅:
Types, CallableStatement.getObject(int), StoredProcedure.execute(java.util.Map)

字段概要
字段
修饰符和类型字段说明
static int TYPE_UNKNOWN
Constant that indicates an unknown (or unspecified) SQL type.

方法概要

所有方法实例方法抽象方法
修饰符和类型	方法	说明
`Object`	`getTypeValue(CallableStatement cs, int paramIndex, int sqlType, String typeName)`	Get the type value from the specific object.

- 字段详细资料
  - TYPE_UNKNOWN
```
static final int TYPE_UNKNOWN
```
    Constant that indicates an unknown (or unspecified) SQL type. Passed into setTypeValue if the original operation method does not specify a SQL type.
    另请参阅:
    Types, JdbcOperations.update(String, Object[]), 常量字段值
- 方法详细资料
  - getTypeValue
```
Object getTypeValue(CallableStatement cs,
                    int paramIndex,
                    int sqlType,
                    String typeName)
             throws SQLException
```
    Get the type value from the specific object.
    参数:
    cs - the CallableStatement to operate on
    paramIndex - the index of the parameter for which we need to set the value
    sqlType - SQL type of the parameter we are setting
    typeName - the type name of the parameter
    返回:
    the target value
    抛出:
    SQLException - if a SQLException is encountered setting parameter values (that is, there's no need to catch SQLException)
    另请参阅:
    Types, CallableStatement.getObject(int)