RowNumberCell.java

/*
 * Copyright 2012 Red Hat, Inc. and/or its affiliates.
 *
 * 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.kie.workbench.common.widgets.decoratedgrid.client.widget.cells;

import com.google.gwt.cell.client.AbstractCell;
import com.google.gwt.safehtml.shared.SafeHtmlBuilder;
import com.google.gwt.safehtml.shared.SafeHtmlUtils;

/**
 * A Cell that renders it's corresponding row index number only
 */
public class RowNumberCell extends AbstractCell<Integer> {

    public RowNumberCell() {
        // Good citizen: AbstractCell does not initialise an empty set of
        // consumed events
        super( "" );
    }

    @Override
    public void render( Context context,
                        Integer value,
                        SafeHtmlBuilder sb ) {
        if ( value != null ) {
            sb.append( SafeHtmlUtils.fromTrustedString( value.toString() ) );
        }
    }

}