How can i access a ManagedBean in a IVY-Script-Step ??

Question

How can i access to a method or getter/setter of a managed bean (e.g. session scoped) in an ivy-script-step ??
I know from an xhtml page it is possible, but i want to start a process in ivy (event) and read some data in a db-Step and write the data back to the managed bean !!

Accepted Answer

The creation of the object (managed bean) happens automatically, you must not do that by yourself (because you will receive/create another instance!). The point is now to get the correct object (created by faces context usually by the first access!).

The code in the script step looks like follows:

import javax.faces.context.FacesContextFactory;
import javax.faces.context.FacesContext;
import ch.soreco.mbean.mb.SimpleBean;

SimpleBean sb;
FacesContext context = FacesContext.getCurrentInstance();

sb = context.getApplication().evaluateExpressionGet(context, "#{simpleBean}", SimpleBean.class) as SimpleBean;

// invoke method of the managed bean
sb.setS1(in.input);

The code of the managed bean:

package ch.soreco.mbean.mb;

import javax.faces.bean.SessionScoped;
import javax.faces.bean.ManagedBean;

import ch.ivyteam.ivy.environment.Ivy;


@ManagedBean(name = "simpleBean")
@SessionScoped
public class SimpleBean 
{
    private String s1;
    private int counterSet = -1;
    private int counterGet = -1;


    public SimpleBean() 
    {
        super();
        s1 = "--";
        counterSet = 0;
        counterGet = 0;
        Ivy.log().warn("BEAN created!");
    }

    public String getS1() {
        counterGet++;
        Ivy.log().warn("BEAN getter called: "+counterGet);
        return s1;
    }

    public void setS1(String s1) {
        counterSet++;
        Ivy.log().warn("BEAN setter called: "+counterSet);
        this.s1 = s1;
    }

    public int getCounterSet() {
        return counterSet;
    }

    public void setCounterSet(int counterSet) {
        this.counterSet = counterSet;
    }

    public int getCounterGet() {
        return counterGet;
    }

    public void setCounterGet(int counterGet) {
        this.counterGet = counterGet;
    }
}

This approach works surely with session or application scoped beans.

Answer 2

In your Script-Step:

import de.path.to.MyBean;
MyBean instanceOfMyBean = new MyBean(); 
instanceOfMyBean.setWhatever(10);

If you want to use this bean in your view just declare a data-object of the given type (de.azt.exampleData.MapBean) in your data-class and bind this as model in your view code, f.e.:

<p:gmap zoom="6" type="TERRAIN" center="#{data.geoLat}, #{data.geoLng}" id="gmap" model="#{data.mapModel}">

The corresponding code in your script step would then be:

import de.azt.exampleData.MapBean;
out.mapModel = new MapBean(out.projects, true, out.auditors, false, true);

Whereas you need to pass the attributes from your database-query as parameters to the constructor of your bean.

Hope that helps.

Answer 3

Usually i do that way: First i will create instance:

FacesContext context = FacesContext.getCurrentInstance();       
            FileManagerBean fileManagerBean=new FileManagerBean();
            context.getExternalContext().getSessionMap().put("fileManagerBean", fileManagerBean);

then i get it when i want to use like this:

import javax.faces.context.FacesContext;
import ch.ivyteam.ivy.addons.filemanager.html.managedbean.FileManagerBean;
FacesContext context = FacesContext.getCurrentInstance();               
FileManagerBean fileManagerBean=context.getExternalContext().getSessionMap().get("fileManagerBean") as FileManagerBean;
in.enablePreviewLink = fileManagerBean.enablePreviewLink;

How can i access a ManagedBean in a IVY-Script-Step ??

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