poi/src/ooxml/java/org/apache/poi/xddf/usermodel/chart/XDDFCategoryDataSource.java

/*
 *  ====================================================================
 *    Licensed to the Apache Software Foundation (ASF) under one or more
 *    contributor license agreements.  See the NOTICE file distributed with
 *    this work for additional information regarding copyright ownership.
 *    The ASF licenses this file to You 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.apache.poi.xddf.usermodel.chart;

import org.apache.poi.util.Beta;

@Beta
public interface XDDFCategoryDataSource extends XDDFDataSource<String> {
    @Override
    default int getColIndex() {
        return 0;
    }

    @Override
    default boolean isNumeric() {
        return false;
    }

    @Override
    default boolean isReference() {
        return true;
    }

    @Override
    default String getDataRangeReference() {
        return getFormula();
    }
}