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Library providing immutable/persistent collection classes for
Java. While collections are immutable they provide methods for
adding and removing values by creating new modified copies of
themselves. Each copy shares almost all of its structure with
other copies to minimize memory consumption.
///###////////////////////////////////////////////////////////////////////////
//
// Burton Computer Corporation
// http://www.burton-computer.com
//
// Copyright (c) 2019, Burton Computer Corporation
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in
// the documentation and/or other materials provided with the
// distribution.
//
// Neither the name of the Burton Computer Corporation nor the names
// of its contributors may be used to endorse or promote products
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//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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package org.javimmutable.collections.util;
import org.javimmutable.collections.Proc2;
import org.javimmutable.collections.Proc2Throws;
import org.javimmutable.collections.Sum2;
import org.javimmutable.collections.Sum2Throws;
import javax.annotation.Nonnull;
import java.util.Iterator;
public class Zip
{
public static void forEach(@Nonnull Iterable a,
@Nonnull Iterable b,
@Nonnull Proc2 operation)
{
Iterator ai = a.iterator();
Iterator bi = b.iterator();
while (ai.hasNext() && bi.hasNext()) {
operation.apply(ai.next(), bi.next());
}
}
public static void forEachThrows(@Nonnull Iterable a,
@Nonnull Iterable b,
@Nonnull Proc2Throws operation)
throws E
{
Iterator ai = a.iterator();
Iterator bi = b.iterator();
while (ai.hasNext() && bi.hasNext()) {
operation.apply(ai.next(), bi.next());
}
}
public static R reduce(R sum,
@Nonnull Iterable a,
@Nonnull Iterable b,
@Nonnull Sum2 operation)
{
Iterator ai = a.iterator();
Iterator bi = b.iterator();
while (ai.hasNext() && bi.hasNext()) {
sum = operation.apply(sum, ai.next(), bi.next());
}
return sum;
}
public static R reduceThrows(R sum,
@Nonnull Iterable a,
@Nonnull Iterable b,
@Nonnull Sum2Throws operation)
throws E
{
Iterator ai = a.iterator();
Iterator bi = b.iterator();
while (ai.hasNext() && bi.hasNext()) {
sum = operation.apply(sum, ai.next(), bi.next());
}
return sum;
}
}