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Feb 9, 2012
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Demo Code was not being displayed. #33

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101 changes: 35 additions & 66 deletions src/docbkx/reference/programming-model/repositories.xml
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Expand Up @@ -180,74 +180,43 @@
</varlistentry>
</variablelist>
</para>
<para>Using these examples and a couple more we can place those queries onto repository methods with @Query and replace values with method parameters, as described
in the <xref linkend="reference:programming-model:annotatedQueries" />) section.
<variablelist>
<varlistentry>
<example>
<programlisting language="java"><![CDATA[
public interface MovieRepository extends GraphRepository<Movie> {
@Query("start n=node({0}) return n")
Movie getMovieFromId(Integer idOfMovie);
}]]></programlisting>

</example>
<listitem><para>returns the node with id equal to idOfMovie parameter</para></listitem>
</varlistentry>
<varlistentry>
<example>
<programlisting language="java"><![CDATA[
public interface MovieRepository extends GraphRepository<Movie> {
@Query("start movie=node:Movie(title={0}) return movie")
Movie getMovieFromTitle(String movieTitle);
}]]></programlisting>

</example>
<listitem><para>returns the nodes which are indexed with title equal to movieTitle parameter</para></listitem>
</varlistentry>
<varlistentry>
<example>
<programlisting language="java"><![CDATA[
<example>
<title>Examples of Cypher queries placed on repository methods with @Query where values are replaced with method parameters, as described
in the <xref linkend="reference:programming-model:annotatedQueries" />) section.</title>
<programlisting language="java"><![CDATA[
public interface MovieRepository extends GraphRepository<Movie> {
@Query("start movie=node:Movie(title={0}) match (movie)&lt;-[:ACTS_IN]-(actor) return actor")
Page<Actor> getActorsThatActInMovieFromTitle(String movieTitle, PageRequest);
}]]></programlisting>

</example>
<listitem><para>returns the Actors that have a ACTS_IN relationship to the movie node with the title equal to movieTitle parameter.
(The parenthesis around 'movie' and 'actor' in the match clause are optional.)</para></listitem>
</varlistentry>
<varlistentry>
<example>
<programlisting language="java"><![CDATA[
public interface MovieRepository extends GraphRepository<Movie> {
@Query("start movie=node:({0}) " +
"match (movie)&lt;-[r:RATED]-(user) " +
"where r.stars > {1} " +
"return user")
Iterable<User> getUsersWhoRatedMovieFromTitle(Movie movie, Integer rating);
}]]></programlisting>

</example>
<listitem><para>returns users who rate a movie (movie parameter) higher than rating (rating parameter)</para></listitem>
</varlistentry>
<varlistentry>
<example>
<programlisting language="java"><![CDATA[
public interface MovieRepository extends GraphRepository<Movie> {
@Query("start movie=node:Movie(title={0}) " +
"match (movie)&lt;-[r:RATED]-(user) " +
"where r.stars > {1} " +
"return user")
Iterable<User> getUsersWhoRatedMovieFromTitle(String movieTitle, Integer rating);
}]]></programlisting>

</example>
<listitem><para>returns users who rate a movie based on movie title (movieTitle parameter) higher than rating (rating parameter)</para></listitem>
</varlistentry>
</variablelist>

// returns the node with id equal to idOfMovie parameter
@Query("start n=node({0}) return n")
Movie getMovieFromId(Integer idOfMovie);

// returns the nodes which will use index named title equal to movieTitle parameter
// movieTitle String must not contain any spaces, otherwise you will receive a NullPointerException.
@Query("start movie=node:Movie(title={0}) return movie")
Movie getMovieFromTitle(String movieTitle);

// returns the Actors that have a ACTS_IN relationship to the movie node with the title equal to movieTitle parameter.
// (The parenthesis around 'movie' and 'actor' in the match clause are optional.)
@Query("start movie=node:Movie(title={0}) match (movie)&lt;-[:ACTS_IN]-(actor) return actor")
Page<Actor> getActorsThatActInMovieFromTitle(String movieTitle, PageRequest);

// returns users who rate a movie (movie parameter) higher than rating (rating parameter)
@Query("start movie=node:({0}) " +
"match (movie)&lt;-[r:RATED]-(user) " +
"where r.stars > {1} " +
"return user")
Iterable<User> getUsersWhoRatedMovieFromTitle(Movie movie, Integer rating);

// returns users who rate a movie based on movie title (movieTitle parameter) higher than rating (rating parameter)
@Query("start movie=node:Movie(title={0}) " +
"match (movie)&lt;-[r:RATED]-(user) " +
"where r.stars > {1} " +
"return user")
Iterable<User> getUsersWhoRatedMovieFromTitle(String movieTitle, Integer rating);
}
]]></programlisting>
</example>

</para>
</section>
<section>
<title>Queries derived from finder-method names</title>
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