小编kum*_*ala的帖子

create view if not exists在MySQL或H2数据库中有什么办法吗？

任何人都可以提出最好的方法来避免大多数条件？我有下面的代码,我想避免大多数情况下如果条件,怎么办呢？任何解决方案都很有帮助;

if (adjustment.adjustmentAccount.isIncrease) {
    if (adjustment.increaseVATLine) {
        if (adjustment.vatItem.isSalesType) {
            entry2.setDebit(adjustment.total);
            entry2.setCredit(0d);
        } else {
            entry2.setCredit(adjustment.total);
            entry2.setDebit(0d);
        }
    } else {
        if (adjustment.vatItem.isSalesType) {
            entry2.setCredit(adjustment.total);
            entry2.setDebit(0d);
        } else {
            entry2.setDebit(adjustment.total);
            entry2.setCredit(0d);
        }
    }
} else {
    if (adjustment.increaseVATLine) {
        if (adjustment.vatItem.isSalesType) {
            entry2.setCredit(adjustment.total);
            entry2.setDebit(0d);
        } else {
            entry2.setDebit(adjustment.total);
            entry2.setCredit(0d);
        }
    } else {
        if (adjustment.vatItem.isSalesType) {
            entry2.setDebit(adjustment.total);
            entry2.setCredit(0d);
        } else {
            entry2.setCredit(adjustment.total);
            entry2.setDebit(0d);
        }
    }
}