NumberSequence.java

package br.com.six2six.fixturefactory.function.impl;

import br.com.six2six.fixturefactory.base.Sequence;

public class NumberSequence implements Sequence<Number> {

	private Number base;
	private int amount;
	private int multiplier;

	public NumberSequence(Number base, int amount) {
		super();
		this.base = base;
		this.amount = amount;
	}

	@Override
	public Number nextValue() {
		Number result = null;
		
		if (this.base instanceof Integer) {
			result = this.base.intValue() + (this.amount * this.multiplier);
			
		} else if (this.base instanceof Long) {
			result = this.base.longValue() + (this.amount * this.multiplier);
			
		} else if (this.base instanceof Float) {
			result = this.base.floatValue() + (this.amount * this.multiplier);
			
		} else if (this.base instanceof Double) {
			result = this.base.doubleValue() + (this.amount * this.multiplier);
		}
	
		this.multiplier++;
		
		return result;
	}
}