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package org.apache.samoa.instances;

/*
 * #%L
 * SAMOA
 * %%
 * Copyright (C) 2014 - 2015 Apache Software Foundation
 * %%
 * 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.
 * #L%
 */

import java.io.Serializable;

/**
 * 
 * @author abifet
 */

public interface Instance extends Serializable {

  double weight();

  void setWeight(double weight);

  // Attributes
  Attribute attribute(int instAttIndex);

  void deleteAttributeAt(int i);

  void insertAttributeAt(int i);

  int numAttributes();

  public void addSparseValues(int[] indexValues, double[] attributeValues, int numberAttributes);

  // Values
  int numValues();

  String stringValue(int i);

  double value(int instAttIndex);

  double value(Attribute attribute);

  void setValue(int m_numAttributes, double d);

  boolean isMissing(int instAttIndex);

  int index(int i);

  double valueSparse(int i);

  boolean isMissingSparse(int p1);

  double[] toDoubleArray();

  // Class
  Attribute classAttribute();

  int classIndex();

  boolean classIsMissing();

  double classValue();

  int numClasses();

  void setClassValue(double d);

  Instance copy();

  // Dataset
  void setDataset(Instances dataset);

  Instances dataset();

  String toString();
}