CategoricalFilterPanel.java

/**
 *  Copyright 2012 Universitat Pompeu Fabra.
 *
 *  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.onexus.website.api.pages.browser.filters.panels;

import org.apache.wicket.markup.html.form.DropDownChoice;
import org.apache.wicket.markup.html.form.FormComponent;
import org.onexus.website.api.pages.browser.filters.operations.*;
import org.onexus.website.api.widgets.tableviewer.headers.FieldHeader;

import java.util.Arrays;
import java.util.List;

public abstract class CategoricalFilterPanel extends AbstractFilterPanel<String> {

    private static final List<FilterOperation> OPERATIONS = Arrays.asList(new FilterOperation[]{
            EqualOperation.INSTANCE,
            NotEqualOperation.INSTANCE,
            ContainsOperation.INSTANCE,
            IsEmptyOperation.INSTANCE,
            IsNotEmptyOperation.INSTANCE
    });

    private List<String> values;

    public CategoricalFilterPanel(String id, FieldHeader fieldHeader, List<String> values) {
        super(id, fieldHeader, new FilterOption<String>(EqualOperation.INSTANCE, values.get(0)), OPERATIONS);
        this.values = values;
    }

    @Override
    protected FormComponent<String> createValueFormComponent(String componentId) {
        return new DropDownChoice<String>(componentId, values).setNullValid(false);
    }
}