com.bigml.histogram.Gap.java Source code

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Here is the source code for com.bigml.histogram.Gap.java

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/**
 * Copyright 2013 BigML
 * Licensed under the Apache License, Version 2.0
 * http://www.apache.org/licenses/LICENSE-2.0
 */
package com.bigml.histogram;

import org.json.simple.JSONArray;

public class Gap<T extends Target> implements Comparable<Gap> {

    public Gap(Bin<T> startBin, Bin<T> endBin, double weight) {
        _startBin = startBin;
        _endBin = endBin;
        _weight = weight;
    }

    public Gap(Bin<T> startBin, Bin<T> endBin) {
        this(startBin, endBin, endBin.getMean() - startBin.getMean());
    }

    public Bin<T> getStartBin() {
        return _startBin;
    }

    public Bin<T> getEndBin() {
        return _endBin;
    }

    public double getSpace() {
        return _weight;
    }

    @Override
    @SuppressWarnings("unchecked")
    public String toString() {
        JSONArray jsonArray = new JSONArray();
        jsonArray.add(_weight);
        jsonArray.add(_startBin);
        jsonArray.add(_endBin);
        return jsonArray.toJSONString();
    }

    @Override
    public int compareTo(Gap t) {
        int result = Double.compare(this.getSpace(), t.getSpace());
        if (result == 0) {
            result = getStartBin().compareTo(t.getStartBin());
        }
        return result;
    }

    @Override
    public boolean equals(Object obj) {
        if (obj == null) {
            return false;
        }
        if (getClass() != obj.getClass()) {
            return false;
        }
        final Gap other = (Gap) obj;
        if (Double.doubleToLongBits(this._weight) != Double.doubleToLongBits(other._weight)) {
            return false;
        }
        if (this._startBin != other._startBin
                && (this._startBin == null || !this._startBin.equals(other._startBin))) {
            return false;
        }
        return true;
    }

    @Override
    public int hashCode() {
        int hash = 7;
        hash = 23 * hash
                + (int) (Double.doubleToLongBits(this._weight) ^ (Double.doubleToLongBits(this._weight) >>> 32));
        hash = 23 * hash + (this._startBin != null ? this._startBin.hashCode() : 0);
        return hash;
    }

    private final double _weight;
    private final Bin<T> _startBin;
    private final Bin<T> _endBin;
}