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INT-3364: Add batchUpdate into JdbcMessageHandler (#2534)

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* INT-3364: Add batchUpdate into JdbcMessageHandler

JIRA: https://jira.spring.io/browse/INT-3364

* * Optimize items mapping with an internal `Message` implementation
* Polishing Docs and Javadocs
This commit is contained in:
Artem Bilan
2018-08-02 17:41:25 -04:00
committed by Gary Russell
parent 34ac66df1c
commit 4a85849bcc
4 changed files with 173 additions and 47 deletions
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10
src/reference/asciidoc/jdbc.adoc
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@@ -261,7 +261,15 @@ public MessageHandler jdbcMessageHandler(DataSource dataSource) {
====
From the XML configuration perspective, the `prepared-statement-setter` attribute is available on the `<int-jdbc:outbound-channel-adapter>` component.
It lets you specify a `MessagePreparedStatementSetter` bean reference.
It lets you specify a `MessagePreparedStatementSetter` bean reference.
==== Batch Update
Starting with version 5.1, the `JdbcMessageHandler` performs a `JdbcOperations.batchUpdate()` if the payload of the request message is an `Iterable` instance.
Each element of the `Iterable` is wrapped to a `Message` with the headers from the request message.
In the case of regular `SqlParameterSourceFactory`-based configuration these messages are used to build an `SqlParameterSource[]` for an argument used in the mentioned `JdbcOperations.batchUpdate()` function.
When a `MessagePreparedStatementSetter` configuration is applied, a `BatchPreparedStatementSetter` variant is used to iterate over those messages for each item and the provided `MessagePreparedStatementSetter` is called against them.
The batch update is not supported when `keysGenerated` mode is selected.
[[jdbc-outbound-gateway]]
=== Outbound Gateway

2
src/reference/asciidoc/whats-new.adoc
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@@ -109,6 +109,8 @@ See <<amqp-content-type>> for more information.
A confusing `max-rows-per-poll` property on the JDBC Inbound Channel Adapter and JDBC Outbound Gateway has been deprecated in favor of the newly introduced `max-rows` property.
The `JdbcMessageHandler` supports now a `batchUpdate` functionality when the payload of the request message is an instance of an `Iterable` type.
See <<jdbc>> for more information.
[[x5.1-ftp-sftp]]