パッケージ org.nkjmlab.sorm4j.extension

インタフェース ResultSetConverter

既知の実装クラスのリスト:

DefaultResultSetConverter

public interface ResultSetConverter

Convert ResultSet from database to specified objects.

作成者:

nkjm

メソッドの概要

修飾子とタイプ	メソッド	説明
Object	getValueBySetterParameterType(ResultSet resultSet, int column, Class<?> setterParameterType)	Reads a column from the current row in the provided ResultSet and returns an instance of the specified Java Class containing the values read.
boolean	isEnableToConvertNativeObject(Class<?> objectClass)	Returns the given type could be converted to the native object or not.
Map<String,Object>	toSingleMap(ResultSet resultSet, List<String> columns, List<Integer> columnTypes)	Converts the result from database to a map objects.
<T> T	toSingleNativeObject(ResultSet resultSet, Class<T> objectClass)	Converts to a single native object of the given object class.

メソッドの詳細

getValueBySetterParameterType

Object getValueBySetterParameterType(ResultSet resultSet,
                                     int column,
                                     Class<?> setterParameterType)
                              throws SQLException

Reads a column from the current row in the provided ResultSet and returns an instance of the specified Java Class containing the values read. This method is mainly used for "SEARCH SQL AND READ TO POJO". i.e. Convert from Sql to Java by the specified class. This method is used while converting ResultSet rows to objects. The class type is the field type in the target bean. null's will be respected for any non-native types. This means that if a field is of type Integer it will be able to receive a null value from the ResultSet; on the other hand, if a field is of type int it will receive 0 for a null value from the ResultSet.

パラメータ:

resultSet - ResultSet (positioned in the row to be processed)

column - column index in the result set (starting with 1)

setterParameterType - Class of the object to be returned

例外:

SQLException

isEnableToConvertNativeObject

boolean isEnableToConvertNativeObject(Class<?> objectClass)

Returns the given type could be converted to the native object or not.

パラメータ:

objectClass -

戻り値:

toSingleMap

Map<String,Object> toSingleMap(ResultSet resultSet,
                                     List<String> columns,
                                     List<Integer> columnTypes)
                              throws SQLException

Converts the result from database to a map objects. The data of the column is extracted by corresponding column types.

パラメータ:

resultSet -

columns -

columnTypes - SQL types from Types

戻り値:

例外:

SQLException

toSingleNativeObject

<T> T toSingleNativeObject(ResultSet resultSet,
                           Class<T> objectClass)
                    throws SQLException

Converts to a single native object of the given object class.

型パラメータ:

T -

パラメータ:

resultSet -

objectClass -

戻り値:

例外:

SQLException