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first cut of cross-store chapter; fixed document title

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Thomas Risberg 15 years ago
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  1. 198
      src/docbkx/reference/cross-store.xml
  2. 2
      src/docbkx/resources/xsl/fopdf.xsl

198
src/docbkx/reference/cross-store.xml
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@ -14,7 +14,7 @@ @@ -14,7 +14,7 @@
also coordinate persistence operations for the non-transactional MongoDB
store with the transaction life-cycle for the relational database.</para>
<section id="mongodb:croos-store-configuration">
<section id="mongodb_cross-store-configuration">
<title>Cross Store Configuration</title>
<para>Assuming that you have a working JPA application and would like to
@ -26,7 +26,8 @@ @@ -26,7 +26,8 @@
this is done by adding a dependency to your pom:</para>
<example>
<title>Example Maven pom.xml</title>
<title>Example Maven pom.xml with spring-data-mongodb-cross-store
dependency</title>
<programlisting language="xml">&lt;project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"&gt;
@ -48,6 +49,199 @@ @@ -48,6 +49,199 @@
</programlisting>
</example>
<para>Once this is done we need to enable AspectJ for the project. The
cross-store support is implemented using AspectJ aspects so by enabling
compile time AspectJ support the cross-store features will become
available to your project. In Maven you would add an additional plugin to
the &lt;build&gt; section of the pom:</para>
<example>
<title>Example Maven pom.xml with AspectJ plugin enabled</title>
<programlisting language="xml">&lt;project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"&gt;
&lt;modelVersion&gt;4.0.0&lt;/modelVersion&gt;
...
&lt;build&gt;
&lt;plugins&gt;
...
&lt;plugin&gt;
&lt;groupId&gt;org.codehaus.mojo&lt;/groupId&gt;
&lt;artifactId&gt;aspectj-maven-plugin&lt;/artifactId&gt;
&lt;version&gt;1.0&lt;/version&gt;
&lt;dependencies&gt;
&lt;!-- NB: You must use Maven 2.0.9 or above or these are ignored (see MNG-2972) --&gt;
&lt;dependency&gt;
&lt;groupId&gt;org.aspectj&lt;/groupId&gt;
&lt;artifactId&gt;aspectjrt&lt;/artifactId&gt;
&lt;version&gt;${aspectj.version}&lt;/version&gt;
&lt;/dependency&gt;
&lt;dependency&gt;
&lt;groupId&gt;org.aspectj&lt;/groupId&gt;
&lt;artifactId&gt;aspectjtools&lt;/artifactId&gt;
&lt;version&gt;${aspectj.version}&lt;/version&gt;
&lt;/dependency&gt;
&lt;/dependencies&gt;
&lt;executions&gt;
&lt;execution&gt;
&lt;goals&gt;
&lt;goal&gt;compile&lt;/goal&gt;
&lt;goal&gt;test-compile&lt;/goal&gt;
&lt;/goals&gt;
&lt;/execution&gt;
&lt;/executions&gt;
&lt;configuration&gt;
&lt;outxml&gt;true&lt;/outxml&gt;
&lt;aspectLibraries&gt;
&lt;aspectLibrary&gt;
&lt;groupId&gt;org.springframework&lt;/groupId&gt;
&lt;artifactId&gt;spring-aspects&lt;/artifactId&gt;
&lt;/aspectLibrary&gt;
&lt;aspectLibrary&gt;
&lt;groupId&gt;org.springframework.data&lt;/groupId&gt;
&lt;artifactId&gt;spring-data-mongodb-cross-store&lt;/artifactId&gt;
&lt;/aspectLibrary&gt;
&lt;/aspectLibraries&gt;
&lt;source&gt;1.6&lt;/source&gt;
&lt;target&gt;1.6&lt;/target&gt;
&lt;/configuration&gt;
&lt;/plugin&gt;
...
&lt;/plugins&gt;
&lt;/build&gt;
...
&lt;/project&gt;
</programlisting>
</example>
<para>Finally, you need to configure your project to use MomgoDB and also
configure the aspects that are used. The following XML snippet should be
added to your application context:</para>
<example>
<title>Example application context with MongoDB and cross-store aspect
support</title>
<programlisting language="xml">&lt;?xml version="1.0" encoding="UTF-8"?&gt;
&lt;beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:jdbc="http://www.springframework.org/schema/jdbc"
xmlns:jpa="http://www.springframework.org/schema/data/jpa"
xmlns:mongo="http://www.springframework.org/schema/data/mongo"
xsi:schemaLocation="http://www.springframework.org/schema/data/mongo
http://www.springframework.org/schema/data/mongo/spring-mongo.xsd
http://www.springframework.org/schema/jdbc
http://www.springframework.org/schema/jdbc/spring-jdbc-3.0.xsd
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/data/jpa
http://www.springframework.org/schema/data/jpa/spring-jpa-1.0.xsd"&gt;
...
&lt;!-- Mongo config --&gt;
&lt;mongo:mongo host="localhost" port="27017"/&gt;
&lt;bean id="mongoTemplate" class="org.springframework.data.document.mongodb.MongoTemplate"&gt;
&lt;constructor-arg name="mongo" ref="mongo"/&gt;
&lt;constructor-arg name="databaseName" value="test"/&gt;
&lt;constructor-arg name="defaultCollectionName" value="cross-store"/&gt;
&lt;/bean&gt;
&lt;bean class="org.springframework.data.document.mongodb.MongoExceptionTranslator"/&gt;
&lt;!-- Mongo cross-store aspect config --&gt;
&lt;bean class="org.springframework.data.persistence.document.mongo.MongoDocumentBacking"
factory-method="aspectOf"&gt;
&lt;property name="changeSetPersister" ref="mongoChangeSetPersister"/&gt;
&lt;/bean&gt;
&lt;bean id="mongoChangeSetPersister"
class="org.springframework.data.persistence.document.mongo.MongoChangeSetPersister"&gt;
&lt;property name="mongoTemplate" ref="mongoTemplate"/&gt;
&lt;property name="entityManagerFactory" ref="entityManagerFactory"/&gt;
&lt;/bean&gt;
...
&lt;/beans&gt;
</programlisting>
</example>
<para></para>
<para> </para>
</section>
<section id="mongodb_cross-store-application">
<title>Writing the Cross Store Application</title>
<para>We are assuming that you have a working JPA application so we will
only cover the additional steps needed to persist part of your Entity in
your Mongo database. First you need to identify the field you want
persited. It should be a domain class and follow the general rules for the
Mongo mapping support covered in previous chapters. The filed you want
persisted in MongoDB should be annotated using the
<classname>@RelatedDocument</classname> annotation. Well, that is really
all you need to do. The cross-store aspects take care of the rest. This
include marking the field with @Transient so it won't be persisted using
JPA, keeping track of any changes and flushing them on succesfull
transaction completion, loading teh document for MongoDB when the values
is used in your application. Here is an example of a simple Entity that
has a field annotated with @RelatedEntity.</para>
<example>
<title>Example of Entity with @RelatedDocument</title>
<programlisting language="java">@Entity
public class Customer {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
private String firstName;
private String lastName;
@RelatedDocument
private SurveyInfo surveyInfo;
// getters and setters omitted
} </programlisting>
</example>
<example>
<title>Example of domain class to be stored as document</title>
<programlisting language="java">public class SurveyInfo {
private Map&lt;String, String&gt; questionsAndAnswers;
public Map&lt;String, String&gt; getQuestionsAndAnswers() {
return questionsAndAnswers;
}
public void setQuestionsAndAnswers(Map&lt;String, String&gt; questionsAndAnswers) {
this.questionsAndAnswers = questionsAndAnswers;
}
} </programlisting>
</example>
<para>Once t...</para>
<para></para>
<para></para>
<para></para>
</section>
</chapter>

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<xsl:param name="gentext-key" select="''"/>
<xsl:variable name="Version">
<xsl:if test="//releaseinfo">
<xsl:text>Spring Data Redis (</xsl:text><xsl:value-of select="//releaseinfo" /><xsl:text>)</xsl:text>
<xsl:text>Spring Data Document (</xsl:text><xsl:value-of select="//releaseinfo" /><xsl:text>)</xsl:text>
</xsl:if>
</xsl:variable>
<xsl:choose>

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