java/perftests/visualisation-jfc/src/main/java/org/apache/qpid/disttest/charting/seriesbuilder/DatasetHolder.java


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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.qpid.disttest.charting.seriesbuilder;

import org.apache.qpid.disttest.charting.definition.SeriesDefinition;
import org.jfree.data.general.Dataset;

/**
 * Accepts data in the form of {@link SeriesDefinition}s and {@link SeriesRow}s,
 * and returns it as a {@link Dataset} for use by a JFreeChart chart.
 */
public interface DatasetHolder
{
    int getNumberOfDimensions();
    void beginSeries(SeriesDefinition seriesDefinition);
    void addDataPointToSeries(SeriesDefinition seriesDefinition, SeriesRow row);
    void endSeries(SeriesDefinition seriesDefinition);

    Dataset getPopulatedDataset();
}