org.jdal.ui.bind.ViewBinder.java Source code

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Here is the source code for org.jdal.ui.bind.ViewBinder.java

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/*
 * Copyright 2009-2015 Jose Luis Martin
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.jdal.ui.bind;

import javax.xml.bind.Binder;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.jdal.ui.View;
import org.springframework.validation.BindingResult;
import org.springframework.validation.ObjectError;

/**
 * {@link Binder} for {@link View Views} 
 *
 * @author Jose Luis Martin
 * @since 1.2
 */
@SuppressWarnings("unchecked")
public class ViewBinder extends AbstractBinder implements BinderHolder {

    private static final Log log = LogFactory.getLog(ViewBinder.class);

    public void doRefresh() {
        Object value = getValue();
        View<Object> view = getView();
        view.setModel(value);
        view.refresh();
    }

    private View<Object> getView() {
        View<Object> view = (View<Object>) component;
        return view;
    }

    public void doUpdate() {
        View<Object> view = getView();
        BindingResult br = view.getBindingResult();

        if (br != null) {
            br.setNestedPath(propertyName);
        }

        view.update();
        setValue(view.getModel());

        if (br != null && view.getBindingResult().hasErrors()) {
            for (ObjectError oe : view.getBindingResult().getAllErrors()) {
                getBindingResult().addError(oe);
            }
        }
    }

    /**
     * {@inheritDoc}
     */
    public PropertyBinder getBinder(String propertyName) {
        View<Object> view = getView();
        if (view instanceof BinderHolder)
            return ((BinderHolder) view).getBinder(propertyName);

        log.warn("View class: [" + view.getClass().getName() + "] "
                + "must implements BinderHolder to validate property: [" + propertyName + "]");

        return null;
    }

}