# \<p:autocomplete> JPA con scroll

Autocomplete con dropbox y tamaño definido para generar el scroll

En las propiedades del autocomplete colocar scrollHeight="250"dropdown="true"size="45"

![](https://2578941663-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-Lc1Wg6ze2c8GK7mFBZX%2F-Lc1WjGeqF4Ig-44ZLgX%2F-Lc1X62XOsVHVoKNi3Nm%2Fauto9.png?generation=1554820663697562\&alt=media)

```
 <p:outputLabel value="#{msg.contribuyente}"/>


    <p:autoComplete  scrollHeight="250"   dropdown="true"  size="45"  id="cedula"  value="#{comerciosController.comercios.cedula}"  
                                                 completeMethod="#{contribuyentesSearchController.completeNombre}"  
                                                 var="p"  
                                                 itemLabel="#{p.nombre} #{p.cedula} "  itemValue="#{p}" converter="contribuyentesConverter" forceSelection="true"> 

                                    <p:ajax event="itemSelect" listener="#{contribuyentesController.handleSelect}" update=":form:growl" />  
                                    <f:facet name="itemtip">
                                        <h:panelGrid columns="1" cellpadding="5">
                                            <h:outputText value="#{p.idcorregimiento.corregimiento}" />
                                        </h:panelGrid>
                                    </f:facet>
                                </p:autoComplete>
```

**Metodo en ContribuyentesSearchController.java**

```java
 public List<Contribuyentes> completeNombre(String query) {
        List<Contribuyentes> suggestions = new ArrayList<>();
        try {
            query = query.trim();
            contribuyentesList = contribuyentesFacade.findByNombreLike(query.toLowerCase());

            contribuyentesList.stream().forEach((p) -> {
                suggestions.add(p);
            });

        } catch (Exception e) {
            JSFUtil.addErrorMessage("completeNombre() " + e.getLocalizedMessage());
        }

        return suggestions;
    }
```

**ContribuyentesFacade**

**crear un Query usando like**

```java
public List<Contribuyentes> findByNombreLike(String value) {
        Query query = em.createQuery("SELECT c FROM Contribuyentes c WHERE lower(c.nombre) like :nombre");
        value = "" + value.trim() + "%";
        return query.setParameter("nombre", value).getResultList();
    }
```


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://avbravo-2.gitbook.io/trucosjakartaee/overview/javaee/jpa/pautocomplete-jpa-con-scroll.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.