online.sanen.unabo.template

类 GeneratedKeyHolder

java.lang.Object

online.sanen.unabo.template.GeneratedKeyHolder

所有已实现的接口:

KeyHolder

public class GeneratedKeyHolder
extends Object
implements KeyHolder

Default implementation of the KeyHolder interface, to be used for holding auto-generated keys (as potentially returned by JDBC insert statements).

Create an instance of this class for each insert operation, and pass it to the corresponding SqlTemplate

作者:

LazyToShow
Date: 2018年10月15日
Time: 下午4:36:59

构造器概要

构造器

构造器和说明
GeneratedKeyHolder() Create a new GeneratedKeyHolder with a default list.
GeneratedKeyHolder(List<Map<String,Object>> keyList) Create a new GeneratedKeyHolder with a given list.
GeneratedKeyHolder(String name)

方法概要

限定符和类型	方法和说明
Number	getKey() Retrieve the first item from the first map, assuming that there is just one item and just one map, and that the item is a number.
List<Map<String,Object>>	getKeyList() Return a reference to the List that contains the keys.
Map<String,Object>	getKeys() Retrieve the first map of keys.

从类继承的方法 java.lang.Object

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

构造器详细资料

GeneratedKeyHolder

public GeneratedKeyHolder()

Create a new GeneratedKeyHolder with a default list.

GeneratedKeyHolder

public GeneratedKeyHolder(List<Map<String,Object>> keyList)

Create a new GeneratedKeyHolder with a given list.

参数:

keyList - a list to hold maps of keys

GeneratedKeyHolder

public GeneratedKeyHolder(String name)

方法详细资料

getKey

public Number getKey()
              throws InvalidDataAccessApiUsageException,
                     DataRetrievalFailureException

从接口复制的说明: KeyHolder

Retrieve the first item from the first map, assuming that there is just one item and just one map, and that the item is a number. This is the typical case: a single, numeric generated key.

Keys are held in a List of Maps, where each item in the list represents the keys for each row. If there are multiple columns, then the Map will have multiple entries as well. If this method encounters multiple entries in either the map or the list meaning that multiple keys were returned, then an InvalidDataAccessApiUsageException is thrown.

指定者:

getKey 在接口中 KeyHolder

返回:

the generated key

抛出:

InvalidDataAccessApiUsageException - if multiple keys are encountered.

DataRetrievalFailureException

getKeys

public Map<String,Object> getKeys()
                           throws InvalidDataAccessApiUsageException

从接口复制的说明: KeyHolder

Retrieve the first map of keys. If there are multiple entries in the list (meaning that multiple rows had keys returned), then an InvalidDataAccessApiUsageException is thrown.

指定者:

getKeys 在接口中 KeyHolder

返回:

the Map of generated keys

抛出:

InvalidDataAccessApiUsageException - if keys for multiple rows are encountered

getKeyList

public List<Map<String,Object>> getKeyList()

从接口复制的说明: KeyHolder

Return a reference to the List that contains the keys. Can be used for extracting keys for multiple rows (an unusual case), and also for adding new maps of keys.

指定者:

getKeyList 在接口中 KeyHolder

返回:

the List for the generated keys, with each entry being a Map of column names and key values