在状态枚举中添加一个抽象方法getToOldStatusList()，并在每个枚举常量中实现该方法

public enum BsiOppMediumStatus {
    HANDLE_0(0, "商机媒介初始化") {
        @Override
        public List<Integer> getToOldStatusList() {
            return List.of(BsiOppMediumStatus.HANDLE_0.getCode());
        }
    },
    HANDLE_1(1, "商机媒介待接单") {
        @Override
        public List<Integer> getToOldStatusList() {
            return List.of(BsiOppMediumStatus.HANDLE_0.getCode(),BsiOppMediumStatus.HANDLE_1.getCode());
        }
    },
    // 其他枚举常量

    private final int code;
    private final String description;

    BsiOppMediumStatus(int code, String description) {
        this.code = code;
        this.description = description;
    }

    public int getCode() {
        return code;
    }

    public String getDescription() {
        return description;
    }

    public abstract List<Integer> getToOldStatusList();
}