英文:
Getting an Incompatible types error when using List as a parameter
问题
我有下面的这个方法，调用createInternalUserSearchClauses时会引发错误：error: incompatible types: UserSearchClause cannot be converted to List<UserSearchClause>。
createInternalUserSearchClauses的签名明确接受一个List<UserSearchClause>作为参数，而and显然是一个List<UserSearchClause>，那么为什么会出现这个错误？
public UsersPage find(List<UserSearchClause> and) {
List<UserSearchClause> internalAnd = createInternalUserSearchClauses(and);
}
private UserSearchClause createInternalUserSearchClauses(List<UserSearchClause> userSearchClauses) {}
英文:
I have this method below which causes the error error: incompatible types: UserSearchClause cannot be converted to List<UserSearchClause> when trying to call createInternalUserSearchClauses.
The signature for createInternalUserSearchClauses clearly takes a List<UserSearchClause> as the param and and is clearly a List<UserSearchClause> so why am I getting this error?
public UsersPage find(List<UserSearchClause> and) {
List<UserSearchClause> internalAnd = createInternalUserSearchClauses(and);
}
private UserSearchClause createInternalUserSearchClauses(List<UserSearchClause> userSearchClauses) {}
答案1
得分: 3
createInternalUserSearchClauses的返回类型不是列表。
英文:
The return type of createInternalUserSearchClauses is not a list.
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