com.talk2object.plum.interaction.rich.field.component.EntityFieldViewBuilder Maven / Gradle / Ivy

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package com.talk2object.plum.interaction.rich.field.component;

import java.util.List;

import com.talk2object.plum.interaction.controller.AbstractController;
import com.talk2object.plum.interaction.controller.Controller;
import com.talk2object.plum.interaction.rich.field.EntityField;
import com.talk2object.plum.interaction.rich.field.InteractiveField;
import com.talk2object.plum.repository.biz.interafce.Collection;
import com.talk2object.plum.repository.biz.interafce.Repository;
import com.talk2object.plum.repository.context.RepositoryContextUtils;
import com.talk2object.plum.view._abstract.components.listbox.DropdownList;
import com.talk2object.plum.view._abstract.components.listbox.option.EntityOptions;
import com.talk2object.plum.view._abstract.components.listbox.option.ObjectOptions;
import com.talk2object.plum.view._abstract.window.UIComponent;

public class EntityFieldViewBuilder extends AbstractFieldViewBuilder {

	@Override
	protected UIComponent createComponent(InteractiveField input) {
		Repository repo = RepositoryContextUtils.getRepository();
		if (repo == null)
			throw new RuntimeException(
					"Repository not initialized, input type of 'Entity' is not supported.");

		EntityField entityInput = (EntityField) input;
		Collection collection = repo.getCollection(entityInput.getFieldClass());

		DropdownList dlist = new DropdownList();
		UIComponent component = dlist;

		List entityList = collection.getAll();
		if (input.isNullable())
			entityList.add(0, null);

		ObjectOptions options = new EntityOptions(entityList,
				entityInput.getFieldClass());

		dlist.setOptions(options);

		new AbstractController(input, dlist) {

			@Override
			public void updateViewState() {

				getView().setSelectedValue(getModel().getValue());
			}

			@Override
			public void updateModelState() {

				getModel().setValue(getView().getSelectedValue());
			}
		};

		return component;
	}

	@Override
	public Class getModelClass() {
		return EntityField.class;
	}
}