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ObjectFilteredPropertyColumn.java
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ObjectFilteredPropertyColumn.java
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/*
* Databinder: a simple bridge from Wicket to Hibernate
* Copyright (C) 2006 Nathan Hamblen nathan@technically.us
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
package net.databinder.components;
import java.util.List;
import org.apache.wicket.Component;
import org.apache.wicket.extensions.markup.html.repeater.data.table.filter.ChoiceFilter;
import org.apache.wicket.extensions.markup.html.repeater.data.table.filter.ChoiceFilteredPropertyColumn;
import org.apache.wicket.extensions.markup.html.repeater.data.table.filter.FilterForm;
import org.apache.wicket.markup.html.form.ChoiceRenderer;
import org.apache.wicket.markup.html.form.IChoiceRenderer;
import org.apache.wicket.model.IModel;
import org.apache.wicket.model.PropertyModel;
/**
* DataTable property filter column that works with joined entities instead of string properties.
* @author Mark Southern
*/
public class ObjectFilteredPropertyColumn<T, Y> extends ChoiceFilteredPropertyColumn<T, Y> {
private ChoiceRenderer<Y> choiceRenderer;
private String displayProperty;
public ObjectFilteredPropertyColumn(IModel<String> displayModel, String sortProperty, String displayProperty, String propertyExpression, String filterLabelProperty, IModel<List<? extends Y>> filterChoices) {
super(displayModel,sortProperty,propertyExpression,filterChoices);
choiceRenderer = new ChoiceRenderer<Y>(filterLabelProperty);
this.displayProperty = displayProperty;
}
protected IChoiceRenderer<Y> getChoiceRenderer() {
return choiceRenderer;
}
protected IModel createLabelModel(IModel embeddedModel) {
return new PropertyModel(embeddedModel, displayProperty);
}
public Component getFilter(String componentId, FilterForm form) {
ChoiceFilter cf = (ChoiceFilter) super.getFilter(componentId, form);
cf.getChoice().setNullValid(true);
return cf;
}
}