Example usage for org.apache.wicket.markup.html.form FormComponent getDefaultModelObject

Introduction

In this page you can find the example usage for org.apache.wicket.markup.html.form FormComponent getDefaultModelObject.

Prototype

Object getDefaultModelObject();

Source Link

Usage

From source file:gr.interamerican.wicket.bo2.utils.SelfDrawnUtils.java

License:Open Source License

/**
 * Code called on any self-drawn form component.
 * /*from  www . jav a2 s. co  m*/
 * @param component
 *        FormComponent
 * @param descriptor
 *        BoPropertyDescriptor
 * 
 * @param <T>
 *        Type of component's model object.
 */
public static <T> void standardSelfDrawnFormComponentStuff(FormComponent<T> component,
        BoPropertyDescriptor<T> descriptor) {
    component.setOutputMarkupPlaceholderTag(true);
    component.add(ValidationStyleBehavior.INSTANCE);
    component.add(new BoPropertyDescriptorValidatorWrapper<T>(descriptor));
    if (descriptor.isHasDefault() && component.getDefaultModelObject() == null) {
        component.setDefaultModelObject(descriptor.getDefaultValue());
    }
    if (descriptor.isReadOnly()) {
        disableComponent(component);
    }
    /*
     * This check cannot be off-loaded to the NotNullValidator, since
     * in this case, wicket will not process any validators attached
     * on the component. Having to set this here means that state changes
     * of the nullAllowed property of the BoPropertyDescriptor are not
     * propagated to the self-drawn Component. This is not, however, a
     * major issue, since it is not expected that the BoPropertyDescriptor
     * of a self-drawn Component will have this property changed after
     * the Component is created.
     */
    component.setRequired(!descriptor.isNullAllowed());
}

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