/***********************************************************************************************************************
* Copyright (C) 2010-2013 by the Stratosphere project (http://stratosphere.eu)
*
* 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 eu.stratosphere.pact.runtime.hash.util;
import java.util.Iterator;
/**
* Iterates over a range of integer values with a certain step width
*
*
*/
public class StepRangeIterator implements Iterator<Integer> {
private final int maxValue;
private int currentValue;
private final int step;
/**
* Create an iterator over the range from minValue to maxValue with a
* certain step width
*
* @param minValue
* Smallest value returned by the iterator
* @param maxValue
* Largest value returned by the iterator
* @param step
* Step width of the iterator
*/
public StepRangeIterator(int minValue, int maxValue, int step) {
this.maxValue = maxValue;
currentValue = minValue;
this.step = step;
}
@Override
public boolean hasNext() {
return (currentValue < maxValue);
}
@Override
public Integer next() {
int temp = currentValue;
currentValue += step;
return temp;
}
@Override
public void remove() {
}
}