com.sri.ai.util.rangeoperation.library.ranges.GeometricIntegerRange Maven / Gradle / Ivy

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/*
 * Copyright (c) 2013, SRI International
 * All rights reserved.
 * Licensed under the The BSD 3-Clause License;
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at:
 * 
 * http://opensource.org/licenses/BSD-3-Clause
 * 
 * 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 aic-util nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 * 
 * 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
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package com.sri.ai.util.rangeoperation.library.ranges;

import java.util.Iterator;

import com.google.common.annotations.Beta;
import com.sri.ai.util.collect.IntegerGeometricSeriesIterator;
import com.sri.ai.util.rangeoperation.core.AbstractRange;

/** A geometric range over integer values. */
@Beta
public class GeometricIntegerRange extends AbstractRange {
	
	private int first, last;
	private float rate;

	public GeometricIntegerRange(String name, int first, int last, float rate) {
		super(name);
		this.first = first;
		this.last = last;
		this.rate = rate;
	}
	
	@Override
	public Iterator apply() { 
		return new IntegerGeometricSeriesIterator(first, last, rate);
	}
}