@Override
	public boolean equals(Object obj) {
		if (this == obj) {
			return true;
		}
		if (obj == null || obj.getClass() != ConvertiblePair.class) {
			return false;
		}
		ConvertiblePair other = (ConvertiblePair) obj;
		return this.sourceType.equals(other.sourceType) && this.targetType.equals(other.targetType);

	}