java – 如何减少以下代码的“Cyclomatic Complexity”

请参考方法ValuePojo.getSomething()
(请不要担心变量命名,为了清楚起见,这个问题已经重写了)

public class ValuePojo
{
    private ValueTypeEnum type;

    private BigDecimal    value1;

    private BigDecimal    value2;

    private BigDecimal    value3;

    public ValuePojo()
    {
        super();
    }

    /**
     * This method reports as "HIGH Cyclomatic Complexity"
     * 
     * @return
     */
    public BigDecimal getSomething()
    {
        if (this.type == null)
        {
            return null;
        }

        switch (this.type)
        {
            case TYPE_A:
            case TYPE_B:
            case TYPE_C:
            case TYPE_D:
                return this.value1;

            case TYPE_E:
            case TYPE_F:
            case TYPE_G:
            case TYPE_H:
                return this.value2;

            case TYPE_I:
            case TYPE_J:
                return this.value3;
        }

        return null;
    }
}