JOOQ空状态

时间:2016-02-18 09:35:07

标签: java jooq

有没有办法定义在输出sql查询中什么都不产生的空条件?现在,对于默认条件,我使用private static Condition limitCondition(Integer offset, Integer count) { Condition limitCondition = trueCondition(); if (count != null && offset != null) { limitCondition = rowNum.between(offset, count + offset); } else if (count == null && offset != null) { limitCondition = rowNum.greaterOrEqual(offset); } else if (count != null && offset == null) { limitCondition = rowNum.lessOrEqual(count); } return limitCondition; }

<android.support.design.widget.CoordinatorLayout  
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/main_content"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true">

<android.support.design.widget.AppBarLayout
android:layout_height="wrap_content"
android:layout_width="match_parent" 
android:theme="@style/AppTheme.AppBarOverlay">

<android.support.v7.widget.Toolbar 
    android:id="@+id/toolbar"
    android:layout_width="match_parent" 
    android:layout_height="?attr/actionBarSize"
    android:background="?attr/colorPrimary" 
    app:popupTheme="@style/AppTheme.PopupOverlay" />
</android.support.design.widget.AppBarLayout>

<include layout="@layout/content_main" />



</android.support.design.widget.CoordinatorLayout>

2 个答案:

答案 0 :(得分:6)

从jOOQ 3.11开始会有DSL.noCondition()。有关详细信息,请参阅此处的相关功能请求:

https://github.com/jOOQ/jOOQ/issues/6817

答案 1 :(得分:2)

这可能有点太晚了,但在 3.14 版本中,您可以使用静态方法。

Condition result = trueCondition();

参考:jooq documentation