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Re: ClassCastException
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created by <a href="https://community.jboss.org/people/hnb">Pierre Guillemot</a> in <i>Datasource Configuration</i> - <a href="https://community.jboss.org/message/716014#716014">View the full discussion</a>
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<div class="jive-rendered-content"><p>Here is the persistence.xml :</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><pre class="jive-pre"><code class="jive-code jive-xml"><span class="jive-xml-tag"><?xml version="1.0" encoding="UTF-8"?></span>
<span class="jive-xml-tag"><span><persistence version="2.0" xmlns="</span><a class="jive-link-external-small" href="http://java.sun.com/xml/ns/persistence" target="_blank">http://java.sun.com/xml/ns/persistence</a><span>" xmlns:xsi="</span><a class="jive-link-external-small" href="http://www.w3.org/2001/XMLSchema-instance" target="_blank">http://www.w3.org/2001/XMLSchema-instance</a><span>" xsi:schemaLocation="</span><a class="jive-link-external-small" href="http://java.sun.com/xml/ns/persistence" target="_blank">http://java.sun.com/xml/ns/persistence</a><span> </span><a class="jive-link-external-small" href="http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd" target="_blank">http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd</a><span>"></span></span>
  <span class="jive-xml-tag"><persistence-unit name="YouFoodIncPU" transaction-type="JTA"></span>
    <span class="jive-xml-tag"><provider></span>org.hibernate.ejb.HibernatePersistence<span class="jive-xml-tag"></provider></span>
    <span class="jive-xml-tag"><jta-data-source></span>java:/MySqlDS<span class="jive-xml-tag"></jta-data-source></span>
    <span class="jive-xml-tag"><properties></span>
            <span class="jive-xml-tag"><property name="hibernate.hbm2ddl.auto" value="update"/></span>
            <span class="jive-xml-tag"><property name="hibernate.archive.autodetection" value="class" /></span>
            <span class="jive-xml-tag"><property name="hibernate.show_sql" value="false" /></span>
            <span class="jive-xml-tag"><property name="hibernate.format_sql" value="true" /></span>
            <span class="jive-xml-tag"><property name="use_sql_comments" value="true" /></span>
            <span class="jive-xml-tag"><property name="hibernate.dialect" value="org.hibernate.dialect.MySQLInnoDBDialect" /></span>
            <span class="jive-xml-tag"><property name="jboss.entity.manager.factory.jndi.name" value="java:/MySqlDs" /></span>
    <span class="jive-xml-tag"></properties></span>
  <span class="jive-xml-tag"></persistence-unit></span>
<span class="jive-xml-tag"></persistence></span>
</code></pre><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>And the MySqlDs.xml with obviously the password modified :</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><pre class="jive-pre"><code class="jive-code jive-xml"><span class="jive-xml-tag"><datasources></span>
  <span class="jive-xml-tag"><local-tx-datasource></span>
    <span class="jive-xml-tag"><jndi-name></span>MySqlDS<span class="jive-xml-tag"></jndi-name></span>
    <span class="jive-xml-tag"><connection-url></span>jdbc:mysql://localhost:3306/youfoodincdb<span class="jive-xml-tag"></connection-url></span>
    <span class="jive-xml-tag"><driver-class></span>com.mysql.jdbc.Driver<span class="jive-xml-tag"></driver-class></span>
    <span class="jive-xml-tag"><user-name></span>root<span class="jive-xml-tag"></user-name></span>
    <span class="jive-xml-tag"><password></span>password<span class="jive-xml-tag"></password></span>
    <span class="jive-xml-tag"><exception-sorter-class-name></span>org.jboss.resource.adapter.jdbc.vendor.MySQLExceptionSorter<span class="jive-xml-tag"></exception-sorter-class-name></span>
    <span class="jive-xml-comment"><!-- should only be used on drivers after 3.22.1 with "ping" support
    <span class="jive-xml-tag"><valid-connection-checker-class-name></span>org.jboss.resource.adapter.jdbc.vendor.MySQLValidConnectionChecker<span class="jive-xml-tag"></valid-connection-checker-class-name></span>
    -->
    <!-- sql to call when connection is created
    <span class="jive-xml-tag"><new-connection-sql></span>some arbitrary sql<span class="jive-xml-tag"></new-connection-sql></span>
      -->
    <!-- sql to call on an existing pooled connection when it is obtained from pool - MySQLValidConnectionChecker is preferred for newer drivers
    <span class="jive-xml-tag"><check-valid-connection-sql></span>some arbitrary sql<span class="jive-xml-tag"></check-valid-connection-sql></span>
      -->
    <!-- corresponding type-mapping in the standardjbosscmp-jdbc.xml (optional) --></span>
    <span class="jive-xml-tag"><metadata></span>
       <span class="jive-xml-tag"><type-mapping></span>mySQL<span class="jive-xml-tag"></type-mapping></span>
    <span class="jive-xml-tag"></metadata></span>
  <span class="jive-xml-tag"></local-tx-datasource></span>
<span class="jive-xml-tag"></datasources></span>
</code></pre><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I can access the (empty) database through mysql console.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I just want to check my connection with my datasource, i still haven't coded any entities or daos. I want to make it work first.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Thanks for your help.</p></div>
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<p style="margin: 0;">Reply to this message by <a href="https://community.jboss.org/message/716014#716014">going to Community</a></p>
<p style="margin: 0;">Start a new discussion in Datasource Configuration at <a href="https://community.jboss.org/choose-container!input.jspa?contentType=1&containerType=14&container=2077">Community</a></p>
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