Can't Adapt To My Own Sling Model

Question

Can't Adapt To My Own Sling Model

I have a problem with Sling Models in a CQ 5.6.1 project

I did everything as it was written here -> http://www.wemblog.com/2014/11/how-to-use-sling-models-in-cq56.html?showComment=1417594209746#c3879427154987489876

But when I try to use

<sling:adaptTo adaptable="${resource}" adaptTo="com.my.client.core.models.MyModel" var="model"/>

but it returns null and I can't figure out why this is happening

My own model Sling

@Model(adaptables = ValueMap.class)
public interface MyModel {

    @Inject @Named(value = "jcr:title")
    public String getTitle();
}

I'm sure I can get "jcr: title" from the resource because I get it from adapting to ValueMap.class

<% String title = resource.adaptTo(ValueMap.class).get("jcr:title", String.class);%>
    <%=title%>

Can anyone help me with this?

My build pluging config in Bundle models

<build>
        <plugins>
            <plugin>
                <groupId>org.apache.felix</groupId>
                <artifactId>maven-bundle-plugin</artifactId>
                <extensions>true</extensions>
                <configuration>
                    <instructions>
                        <Export-Package>
                            com.my.client.*
                        </Export-Package>
                        <Bundle-Category>models/Bundle-Category>
                        <Require-Bundle>org.apache.sling.models.api</Require-Bundle>
                        <Import-Package>
                            org.apache.log ;resolution:=optional,
                            org.apache.avalon.framework.logger ;resolution:=optional,
                            *
                        </Import-Package>
                        <Sling-Model-Packages>
                            com.my.client.core.models
                        </Sling-Model-Packages>
                    </instructions>
                </configuration>
            </plugin>
        </plugins>
    </build>

I am using both dependencies

 <dependency>
        <groupId>org.apache.sling</groupId>
        <artifactId>org.apache.sling.models.api</artifactId>
    </dependency>
    <dependency>
        <groupId>org.apache.sling</groupId>
        <artifactId>org.apache.sling.models.impl</artifactId>
    </dependency>

and use in my view module, so I have no errors when trying to adapt to

<dependency>
            <groupId>org.apache.sling</groupId>
            <artifactId>org.apache.sling.scripting.jsp</artifactId>
            <version>2.1.0</version>
        </dependency>
        <dependency>
            <groupId>org.apache.sling</groupId>
            <artifactId>org.apache.sling.scripting.jsp.taglib</artifactId>
            <version>2.2.0</version>
        </dependency>

+3

jsp-tags osgi-bundle cq5 sling

Andrey Shilov 03 dec. 14 at 13:27

source to share

2 answers

Jordan shurmer · Answer 1 · 2016-04-04T14:56:56+0000

Your Sling model should be declared as adaptable from Resource

, notValueMap

@Model(adaptables = Resource.class)
public interface MyModel {

    @Inject @Named(value = "jcr:title")
    public String getTitle();
}

You can see in the Sling Models docs that it is for support Resource

and SlingHttpServletRequest

adaptation only.

Many Sling projects want to be able to create model objects - POJOs that automatically map to Sling objects, usually resources, but also request objects

...

Adapt Multiple Objects - Minimum Resource Required and SlingHttpServletRequest

You are already passing in an object Resource

from jsp so no need to change anything there.

santiagozky · Answer 2 · 2014-12-08T14:10:34+0000

you should either adapt from Resource.class or SlingHttpServletRequest.class, not ValueMap.class. in any case, the sling factory model can inject values from the resource.

Can't Adapt To My Own Sling Model

More articles: