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	convertColumnValueTo(SormOptions options, ResultSet resultSet, int column, int columnType, Class<?> toType)	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	isStandardClass(SormOptions options, Class<?> objectClass)	Returns the given type could be converted to the native object or not.
void	setLetterCaseOfKeyInMap(String letterCase)	Defines the letter case of the keys in the result of toSingleMap(org.nkjmlab.sorm4j.extension.SormOptions, java.sql.ResultSet, java.util.List<java.lang.String>, java.util.List<java.lang.Integer>).
Map<String,Object>	toSingleMap(SormOptions options, ResultSet resultSet, List<String> columns, List<Integer> columnTypes)	Converts the result from database to a map objects.
<T> T	toSingleStandardObject(SormOptions options, ResultSet resultSet, int columnType, Class<T> objectClass)	Converts to a single native object of the given object class.

メソッドの詳細

convertColumnValueTo

Object convertColumnValueTo(SormOptions options,
                            ResultSet resultSet,
                            int column,
                            int columnType,
                            Class<?> toType)
                     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:

options -

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

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

columnType -

toType - Class of the object to be returned

例外:

SQLException

isStandardClass

boolean isStandardClass(SormOptions options,
                        Class<?> objectClass)

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

パラメータ:

options -

objectClass -

戻り値:

toSingleMap

Map<String,Object> toSingleMap(SormOptions options,
                                     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.

Keys in the results returned in lower case by default. The setting is changed by setLetterCaseOfKeyInMap(java.lang.String).

パラメータ:

options -

resultSet -

columns -

columnTypes - SQL types from Types

戻り値:

例外:

SQLException

setLetterCaseOfKeyInMap

void setLetterCaseOfKeyInMap(String letterCase)

Defines the letter case of the keys in the result of toSingleMap(org.nkjmlab.sorm4j.extension.SormOptions, java.sql.ResultSet, java.util.List<java.lang.String>, java.util.List<java.lang.Integer>).

パラメータ:

letterCase -

toSingleStandardObject

<T> T toSingleStandardObject(SormOptions options,
                             ResultSet resultSet,
                             int columnType,
                             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:

options -

resultSet -

columnType -

objectClass -

戻り値:

例外:

SQLException