Class Decimal

common/src/main/java/pro/tools/data/decimal/Decimal.java:18–353

数值类型封装类 @author SeanDragon Create By 2017-04-13 14:22

 * Create By 2017-04-13 14:22
 */
public class Decimal extends Number implements Cloneable {

    //region 全局变量

    private BigDecimal bigDecimal;
    private static volatile MathContext defaultMathContext = MathContext.DECIMAL128;
    private final MathContext mathContext;

    //endregion

    /**
     * region初始化模块
     *
     * @param initValue
     */
    public Decimal(Object initValue) {
        this(initValue, defaultMathContext);
    }

    public Decimal(Object initValue, MathContext mathContext) {
        this.mathContext = mathContext;
        init(initValue);
    }

    public static MathContext getDefaultMathContext() {
        return defaultMathContext;
    }

    public static void setDefaultMathContext(MathContext defaultMathContext) {
        Decimal.defaultMathContext = defaultMathContext;
    }

    /**
     * 便利生成方式,获取实例方法
     *
     * @param initValue
     *
     * @return
     */
    public static Decimal instance(Object initValue) {
        return new Decimal(initValue);
    }

    //region 便利生成方式,获取实例方法

    public static Decimal instance(Object initValue, MathContext mathContext) {
        return new Decimal(initValue, mathContext);
    }

    private void init(Object initValue) {
        if (initValue instanceof Decimal) {
            Decimal value = (Decimal) initValue;
            bigDecimal = ToolClone.clone(value.getBigDecimal());
        } else if (initValue instanceof BigDecimal) {
            bigDecimal = ToolClone.clone((BigDecimal) initValue);
        } else if (initValue instanceof BigInteger) {
            BigInteger value = (BigInteger) initValue;
            bigDecimal = new BigDecimal(ToolClone.clone(value), mathContext);