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<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
<section id="JCR.FindNodesByPrimaryType">
  <title>Finding Nodes by Primary Type</title>

  <para>Find all nodes whose primary type is "nt:file".</para>

  <section id="JCR.FindNodesByPrimaryType.RepositoryStructure">
    <title>Repository structure:</title>

    <para>The repository contains nodes with different primary types and mixin
    types.</para>

    <itemizedlist>
      <listitem>
        <para>root</para>

        <itemizedlist>
          <listitem>
            <para>document1 primarytype = "nt:unstructured" mixintype =
            "mix:title"</para>
          </listitem>

          <listitem>
            <para>document2 primarytype = "nt:file" mixintype =
            "mix:lockable"</para>
          </listitem>

          <listitem>
            <para>document3 primarytype = "nt:file" mixintype =
            "mix:title"</para>
          </listitem>
        </itemizedlist>
      </listitem>
    </itemizedlist>
  </section>

  <section id="JCR.FindNodesByPrimaryType.QueryExecution">
    <title>Query execution</title>

    <para><emphasis role="bold">SQL</emphasis></para>

    <programlisting language="java">// make SQL query
QueryManager queryManager = workspace.getQueryManager();
// create query
String sqlStatement = "SELECT * FROM nt:file";
Query query = queryManager.createQuery(sqlStatement, Query.SQL);
// execute query and fetch result
QueryResult result = query.execute();</programlisting>

    <para><emphasis role="bold">XPath</emphasis></para>

    <programlisting language="java">// make XPath query
QueryManager queryManager = workspace.getQueryManager();
// create query
String xpathStatement = "//element(*,nt:file)";
Query query = queryManager.createQuery(xpathStatement, Query.XPATH);
// execute query and fetch result
QueryResult result = query.execute();</programlisting>
  </section>

  <section id="JCR.FindNodesByPrimaryType.FetchingResult">
    <title>Fetching result</title>

    <para>Let's get nodes:</para>

    <programlisting language="java">NodeIterator it = result.getNodes();

if(it.hasNext())
{
   Node findedNode = it.nextNode();
}</programlisting>

    <para>NodeIterator will return "document2" and "document3".</para>

    <para>We can also get a table:</para>

    <programlisting language="java">String[] columnNames = result.getColumnNames();
RowIterator rit = result.getRows();
while (rit.hasNext())
{
   Row row = rit.nextRow();
   // get values of the row
   Value[] values = row.getValues();
}</programlisting>

    <para>The table content is <table>
        <title>Table content</title>

        <tgroup cols="2">
          <thead>
            <row>
              <entry>jcr:path</entry>

              <entry>jcr:score</entry>
            </row>
          </thead>

          <tbody>
            <row>
              <entry>/document2</entry>

              <entry>2674</entry>
            </row>

            <row>
              <entry>/document3</entry>

              <entry>2674</entry>
            </row>
          </tbody>
        </tgroup>
      </table></para>
  </section>
</section>
