doublearray.java

java 的源代码

package com.reddragon2046.base.utilities.data.adapters;

import com.reddragon2046.base.utilities.data.BidirectionalIterator;
import java.util.Iterator;

// Referenced classes of package com.reddragon2046.base.utilities.data.adapters:
//            AbstractNativeArray, DoubleBuffer, DoubleIterator, Algorithms

public class DoubleArray extends AbstractNativeArray
{

    public DoubleArray()
    {
        this(new double[0], false);
    }

    public DoubleArray(DoubleArray array)
    {
        this(array.m_array, true);
    }

    public DoubleArray(DoubleBuffer buffer)
    {
        this(buffer.get(), true);
    }

    public DoubleArray(double array[])
    {
        this(array, false);
    }

    public DoubleArray(double array[], boolean makeCopy)
    {
        if(makeCopy)
        {
            m_array = new double[array.length];
            for(int i = 0; i < array.length; i++)
                m_array[i] = array[i];

        } else
        {
            m_array = array;
        }
    }

    public synchronized Object clone()
    {
        return new DoubleArray(m_array, false);
    }

    public synchronized String toString()
    {
        return Algorithms.Printing.toString(this, "double[]");
    }

    public boolean equals(Object object)
    {
        return (object instanceof DoubleArray) && equals((DoubleArray)object) || (object instanceof DoubleBuffer) && equals((DoubleBuffer)object);
    }

    public boolean equals(DoubleArray object)
    {
        return equals(object.m_array);
    }

    public synchronized boolean equals(DoubleBuffer buffer)
    {
        boolean flag;
        synchronized(buffer)
        {
            flag = sliceEquals(m_array, m_array.length, buffer.storage, buffer.length);
        }
        return flag;
    }

    public synchronized boolean equals(double array[])
    {
        boolean flag;
        synchronized(array)
        {
            flag = sliceEquals(m_array, m_array.length, array, array.length);
        }
        return flag;
    }

    protected static boolean sliceEquals(double a1[], int len1, double a2[], int len2)
    {
        if(len1 != len2)
            return false;
        for(int i = 0; i < len1; i++)
            if(a1[i] != a2[i])
                return false;

        return true;
    }

    public double[] get()
    {
        return m_array;
    }

    public int size()
    {
        return m_array.length;
    }

    public int maxSize()
    {
        return m_array.length;
    }

    public Iterator iterator()
    {
        return begin();
    }

    public synchronized BidirectionalIterator begin()
    {
        return new DoubleIterator(this, 0);
    }

    public synchronized BidirectionalIterator end()
    {
        return new DoubleIterator(this, m_array.length);
    }

    public Object get(int index)
    {
        return new Double(doubleAt(index));
    }

    public synchronized double doubleAt(int index)
    {
        return m_array[index];
    }

    public void put(int index, Object object)
    {
        put(index, ((Number)object).doubleValue());
    }

    public synchronized void put(int index, double object)
    {
        m_array[index] = object;
    }

    double m_array[];
    static final long serialVersionUID = 0x8997967fb51716b2L;
}