ORMLite - Parenthesis in join where clauses

元气小坏坏 提交于 2019-12-06 09:09:38
Daber

I guess that is a part of the doc you have been looking for...

If you want to do complex queries linearly, you can even use Reverse Polish Notation (of all things). There is a Where.or(int) and Where.and(int) methods which do the operation on the previous number of specified clauses.

where.eq(Account.NAME_FIELD_NAME, "foo");
where.eq(Account.PASSWORD_FIELD_NAME, "_secret");
// this does an AND between the previous 2 clauses
// it also puts a clause back on the stack
where.and(2);
where.eq(Account.NAME_FIELD_NAME, "bar"),
where.eq(Account.PASSWORD_FIELD_NAME, "qwerty")));
// this does an AND between the previous 2 clauses
// it also puts a clause back on the stack
where.and(2);
// this does an OR between the previous 2 AND clauses
where.or(2);
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