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POJSF Converter not converting between String and class
 

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  1. POJSF Converter not converting between String and class
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    <p>Changing the selectOneMenu to this. Solved the issue for me. Now my problem is that the page seems to be called several times ending up messing up the selection.</p> <p>But switching the value to #{st} instead of serieType would solved the issue with failing to assign the string to the class. Now it's correctly handled as a class. This makes no sense whatsoever to me since I have another selectonemenu where I use the player which is another bean. and set the value to #{player} but anyway this works. </p> <p>Now I just need to figure out why my selection is altered when calling the page again.</p> <pre><code>&lt;p:selectOneMenu value="#{st}" converter="serieTypeConverter" id="serieTypeList"&gt; &lt;f:selectItem itemLabel="---" noSelectionOption="true" /&gt; &lt;f:selectItems value="#{serviceSerieType.serieTypes}" var="st" itemValue="#{st}" itemLabel="#{st.serie_type}" itemLabelEscaped="true"/&gt; &lt;/p:selectOneMenu&gt; </code></pre> <p>Additional information</p> <p>Below suggested solution will not work. It actually end up trying to assign a SerieType class to the serieType.selectedValue eventhough it's prototype is this</p> <pre><code>private String selectedValue; &lt;p:selectOneMenu value="#{serieType.selectedValue}" converter="serieTypeConverter" id="serieTypeList"&gt; &lt;f:selectItems value="#{serviceSerieType.serieTypes}" var="st" itemValue="#{st}" itemLabel="#{st.serie_type}" itemLabelEscaped="true"/&gt; &lt;/p:selectOneMenu&gt; </code></pre> <p>Somewhere in the form I get below error. I can figure out where it goes wrong. I can't see any apparent reason for it since I am using an identical converter for another class with just the class name changed. There is a service that return a SerieType class either by a long ID och string ID. </p> <pre><code>SEVERE: Servlet.service() for servlet [Faces Servlet] in context with path [/BowlingFacelets] threw exception [Cannot convert Match of type class java.lang.String to class com.jk.hcp.SerieType] with root cause javax.el.ELException: Cannot convert Match of type class java.lang.String to class com.jk.hcp.SerieType at org.apache.el.lang.ELSupport.coerceToType(ELSupport.java:420) </code></pre> <p>These are the only two places in the xhtml it's used</p> <pre><code>&lt;h:selectOneListbox size="1" value="#{serieType}" converter="serieTypeConverter" id="serieTypeList"&gt; &lt;f:selectItems value="#{serviceSerieType.serieTypes}" var="st" itemValue="#{st}" itemLabel="#{st.serie_type}" itemLabelEscaped="true"/&gt; &lt;/h:selectOneListbox&gt; &lt;c:forEach var="list" items="#{serviceSeries.getClubAverages(club.name, serieType, calendarBean)}"&gt; </code></pre> <p>In the ServiceSerieType</p> <pre><code>public List&lt;SerieType&gt; getSerieTypes() { public SerieType getSerieTypeByID(long id) { public SerieType getSerieTypeByStringID(String id) { @FacesConverter(value = "serieTypeConverter") public class SerieTypeConverter implements Converter { @Override public Object getAsObject(FacesContext context, UIComponent component, String value) { if (value == null) { return null; } long idValue; try { idValue = Long.parseLong(value); } catch (NumberFormatException ex) { return null; } ServiceSerieType serviceSerieType = context.getApplication().evaluateExpressionGet(context, "#{serviceSerieType}", ServiceSerieType.class); SerieType serieType = serviceSerieType.getSerieTypeByID(idValue); return serieType; } @Override public String getAsString(FacesContext context, UIComponent component, Object value) { if (value == null || value.equals("")) { return ""; } else { return String.valueOf(((SerieType)value).getStringID()); } } } @ManagedBean public class SerieType implements Serializable { @Id @GeneratedValue(strategy = GenerationType.IDENTITY) private Long id; private String serie_type; private String serie_type_info; public String getSerie_type_info() { return serie_type_info; } public void setSerie_type_info(String serie_type_info) { this.serie_type_info = serie_type_info; } private static final long serialVersionUID = 1L; public SerieType() { super(); } public Long getId() { return this.id; } public void setId(Long id) { this.id = id; } public String getSerie_type() { return this.serie_type; } public void setSerie_type(String serie_type) { this.serie_type = serie_type; } public String getStringID() { if (id == null) return "0"; return id.toString(); } public void setStringID(String value) { if (value == null) return; try { this.id = Long.parseLong(value); } catch (NumberFormatException ex) { } } @Override public boolean equals(Object other) { return (id != null &amp;&amp; other != null &amp;&amp; getClass() == other.getClass()) ? id.equals(((SerieType) other).getId()) : (other == this); } @Override public int hashCode() { return (id != null) ? (getClass().hashCode() + id.hashCode()) : super.hashCode(); } /* @Override public String toString() { return this.serie_type + " " + this.serie_type_info; } */ } </code></pre>
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    1. PTQuestion
    1. USuser2130951
    1. USuser2130951
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    1. COCan you explain why your ManagedBean has a persistence @GeneratedValue annotation on a member field ?! you are mixing between entity and managed bean !
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      1. POJSF Converter not converting between String and class
      1. USHatem Alimam
    2. COAre there any 'caused by' exceptions?
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      1. POJSF Converter not converting between String and class
      1. USLukas Eichler
    3. COThere are no caused by. Yes it's also used for JPA. I can't see any reason to have one bean and one JPA class for the same thing. But maybe you can enlighten me?
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      1. POJSF Converter not converting between String and class
      1. USuser2130951
 

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