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- /*
- * ====================================================================
- * 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.ss.usermodel.charts;
-
- import org.apache.poi.util.Removal;
-
- /**
- * Represents data model of the charts.
- *
- * @param <T> type of points the data source contents
- * @deprecated use XDDFDataSource instead
- */
- @Deprecated
- @Removal(version="4.2")
- public interface ChartDataSource<T> {
-
- /**
- * Return number of points contained by data source.
- *
- * @return number of points contained by data source
- */
- int getPointCount();
-
- /**
- * Returns point value at specified index.
- *
- * @param index index to value from
- * @return point value at specified index.
- * @throws {@code IndexOutOfBoundsException} if index
- * parameter not in range {@code 0 <= index <= pointCount}
- */
- T getPointAt(int index);
-
- /**
- * Returns {@code true} if charts data source is valid cell range.
- *
- * @return {@code true} if charts data source is valid cell range
- */
- boolean isReference();
-
- /**
- * Returns {@code true} if data source points should be treated as numbers.
- *
- * @return {@code true} if data source points should be treated as numbers
- */
- boolean isNumeric();
-
- /**
- * Returns formula representation of the data source. It is only applicable
- * for data source that is valid cell range.
- *
- * @return formula representation of the data source
- * @throws {@code UnsupportedOperationException} if the data source is not a
- * reference.
- */
- String getFormulaString();
- }
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