How read aspect fields values in a custom constraint

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nahanni

Hi,

I have developped a custom constraint. This constraint is linked to a field in an aspect.

In this constraint, I need to read values in other fields of the aspect.

I tried

String val = (String) context.getExternalContext().getRequestParameterMap().get("the_field"); ‍

but it doesn't work !


The following go show in the console that the fields of the aspect are not present in the map returned by getRequestParameterMap.

int i=0;
for (Iterator it=context.getExternalContext().getRequestParameterMap().keySet().iterator(); it.hasNext(); i++) { 
      Object key = it.next(); 
      Object value = context.getExternalContext().getRequestParameterMap().get(key); 
      System.out.println("\nkey["+i+"]: "+key+" = value["+i+"]: "+value); 
}‍‍‍‍‍‍

Any idea on how acces to the other fields values ?

Thank you.

Dom

gavinc

If you're talking about fields that are present on the web page they should be bound to a backing bean, in which case the value of the field will end up in the appropriate member variable of your bean.

For example if you have:

<h:inputText value="#{MyBean.name}" />‍

then the class:

public class MyBean
{
    private String name;
 
    public void setName(String name)
    {
        this.name = name;
    }

    public String getName()
    {
        return this.name;
    }
}‍‍‍‍‍‍‍‍‍‍‍‍‍‍

Then the value of the name field in the UI will end up in the name variable and thus accessible via MyBean.getName().

Hope this helps.