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83 lines
3.3 KiB
83 lines
3.3 KiB
= Appendix |
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[[xsd-schemas]] |
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== XML Schemas |
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This part of the appendix lists XML schemas for data access. |
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[[xsd-schemas-tx]] |
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=== The `tx` schema |
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The `tx` tags deal with configuring all of those beans in Spring's comprehensive support |
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for transactions. These tags are covered in the chapter entitled |
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<<data-access.adoc#transaction,Transaction Management>>. |
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[TIP] |
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==== |
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You are strongly encouraged to look at the `'spring-tx.xsd'` file that ships with the |
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Spring distribution. This file is (of course), the XML Schema for Spring's transaction |
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configuration, and covers all of the various tags in the `tx` namespace, including |
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attribute defaults and suchlike. This file is documented inline, and thus the |
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information is not repeated here in the interests of adhering to the DRY (Don't Repeat |
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Yourself) principle. |
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==== |
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In the interest of completeness, to use the tags in the `tx` schema, you need to have |
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the following preamble at the top of your Spring XML configuration file; the text in the |
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following snippet references the correct schema so that the tags in the `tx` namespace |
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are available to you. |
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[source,xml,indent=0] |
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[subs="verbatim,quotes"] |
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---- |
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<?xml version="1.0" encoding="UTF-8"?> |
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<beans xmlns="http://www.springframework.org/schema/beans" |
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" |
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xmlns:aop="http://www.springframework.org/schema/aop" |
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__xmlns:tx="http://www.springframework.org/schema/tx"__ xsi:schemaLocation=" |
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http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd |
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__http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd__ |
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http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd"> <!-- bean definitions here --> |
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</beans> |
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---- |
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[NOTE] |
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==== |
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Often when using the tags in the `tx` namespace you will also be using the tags from the |
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`aop` namespace (since the declarative transaction support in Spring is implemented |
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using AOP). The above XML snippet contains the relevant lines needed to reference the |
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`aop` schema so that the tags in the `aop` namespace are available to you. |
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==== |
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[[xsd-schemas-jdbc]] |
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=== The `jdbc` schema |
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The `jdbc` tags allow you to quickly configure an embedded database or initialize an |
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existing data source. These tags are documented in |
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<<data-access.adoc#jdbc-embedded-database-support,Embedded database support>> |
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and <<data-access.adoc#jdbc-initializing-datasource,Initializing a DataSource>> respectively. |
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To use the tags in the `jdbc` schema, you need to have the following preamble at the top |
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of your Spring XML configuration file; the text in the following snippet references the |
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correct schema so that the tags in the `jdbc` namespace are available to you. |
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[source,xml,indent=0] |
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[subs="verbatim,quotes"] |
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---- |
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<?xml version="1.0" encoding="UTF-8"?> |
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<beans xmlns="http://www.springframework.org/schema/beans" |
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" |
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__xmlns:jdbc="http://www.springframework.org/schema/jdbc"__ xsi:schemaLocation=" |
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http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd |
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__http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc.xsd"__> <!-- bean definitions here --> |
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</beans> |
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----
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