java.lang.Object | |
↳ | org.springframework.jdbc.support.GeneratedKeyHolder |
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 JdbcTemplate
or {org.springframework.jdbc.object.SqlUpdate} methods.
Public Constructors | |||||||||||
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Create a new GeneratedKeyHolder with a default list.
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Create a new GeneratedKeyHolder with a given list.
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Public Methods | |||||||||||
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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.
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Return a reference to the List that contains the keys.
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Retrieve the first map of keys.
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Inherited Methods | |||||||||||
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From class
java.lang.Object
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From interface
org.springframework.jdbc.support.KeyHolder
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Create a new GeneratedKeyHolder with a default list.
Create a new GeneratedKeyHolder with a given list.
keyList | a list to hold maps of keys |
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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.
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.
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.