Package com.gs.collections.impl.lazy.primitive

Source Code of com.gs.collections.impl.lazy.primitive.ReverseDoubleIterable$ReverseDoubleIterator

/*
* Copyright 2014 Goldman Sachs.
*
* 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.
*/

package com.gs.collections.impl.lazy.primitive;

import java.io.IOException;
import java.util.NoSuchElementException;

import com.gs.collections.api.DoubleIterable;
import com.gs.collections.api.LazyDoubleIterable;
import com.gs.collections.api.LazyIterable;
import com.gs.collections.api.bag.primitive.MutableDoubleBag;
import com.gs.collections.api.block.function.primitive.DoubleToObjectFunction;
import com.gs.collections.api.block.function.primitive.ObjectDoubleToObjectFunction;
import com.gs.collections.api.block.predicate.primitive.DoublePredicate;
import com.gs.collections.api.block.procedure.primitive.DoubleProcedure;
import com.gs.collections.api.iterator.DoubleIterator;
import com.gs.collections.api.list.primitive.MutableDoubleList;
import com.gs.collections.api.list.primitive.DoubleList;
import com.gs.collections.api.set.primitive.MutableDoubleSet;
import com.gs.collections.impl.bag.mutable.primitive.DoubleHashBag;
import com.gs.collections.impl.lazy.ReverseIterable;
import com.gs.collections.impl.list.mutable.FastList;
import com.gs.collections.impl.list.mutable.primitive.DoubleArrayList;
import com.gs.collections.impl.set.mutable.primitive.DoubleHashSet;

/**
* This file was automatically generated from template file reversePrimitiveIterable.stg.
*
* @see ReverseIterable
* @since 5.0.
*/
public class ReverseDoubleIterable extends AbstractLazyDoubleIterable
{
    private final DoubleList adapted;

    public ReverseDoubleIterable(DoubleList newAdapted)
    {
        this.adapted = newAdapted;
    }

    public static ReverseDoubleIterable adapt(DoubleList doubleList)
    {
        return new ReverseDoubleIterable(doubleList);
    }

    public DoubleIterator doubleIterator()
    {
        return new ReverseDoubleIterator();
    }

    public void forEach(DoubleProcedure procedure)
    {
        DoubleIterator iterator = this.doubleIterator();
        while (iterator.hasNext())
        {
            procedure.value(iterator.next());
        }
    }

    public double sum()
    {
        return this.adapted.sum();
    }

    public double max()
    {
        return this.adapted.max();
    }

    public double min()
    {
        return this.adapted.min();
    }

    public double minIfEmpty(double defaultValue)
    {
        if (this.adapted.isEmpty())
        {
            return defaultValue;
        }
        return this.adapted.min();
    }

    public double maxIfEmpty(double defaultValue)
    {
        if (this.adapted.isEmpty())
        {
            return defaultValue;
        }
        return this.adapted.max();
    }

    public double average()
    {
        return this.adapted.average();
    }

    public double median()
    {
        return this.adapted.median();
    }

    public double[] toSortedArray()
    {
        return this.adapted.toSortedArray();
    }

    public MutableDoubleList toSortedList()
    {
        return DoubleArrayList.newList(this).sortThis();
    }


    @Override
    public double[] toArray()
    {
        double[] results = new double[this.adapted.size()];
        int index = 0;
        DoubleIterator iterator = this.doubleIterator();
        while (iterator.hasNext())
        {
            results[index] = iterator.next();
            index++;
        }
        return results;
    }

    @Override
    public boolean contains(double value)
    {
        return this.adapted.contains(value);
    }

    @Override
    public boolean containsAll(double... source)
    {
        return this.adapted.containsAll(source);
    }

    @Override
    public boolean containsAll(DoubleIterable source)
    {
        return this.adapted.containsAll(source);
    }

    @Override
    public int size()
    {
        return this.adapted.size();
    }

    @Override
    public boolean isEmpty()
    {
        return this.adapted.isEmpty();
    }

    @Override
    public boolean notEmpty()
    {
        return this.adapted.notEmpty();
    }

    @Override
    public MutableDoubleList toList()
    {
        return DoubleArrayList.newList(this);
    }

    @Override
    public MutableDoubleSet toSet()
    {
        return DoubleHashSet.newSet(this);
    }

    @Override
    public MutableDoubleBag toBag()
    {
        return DoubleHashBag.newBag(this);
    }

    @Override
    public LazyDoubleIterable asLazy()
    {
        return new LazyDoubleIterableAdapter(this);
    }

    private class ReverseDoubleIterator implements DoubleIterator
    {
        /**
         * Index of element to be returned by subsequent call to next.
         */
        private int currentIndex = ReverseDoubleIterable.this.adapted.size() - 1;

        public boolean hasNext()
        {
            return this.currentIndex != -1;
        }

        public double next()
        {
            if (!this.hasNext())
            {
                throw new NoSuchElementException();
            }
            double next = ReverseDoubleIterable.this.adapted.get(this.currentIndex);
            this.currentIndex--;
            return next;
        }
    }
}
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