大约有 26,000 项符合查询结果（耗时：0.0369秒） [XML]
JPA - Returning an auto generated id after persist()
I'm using JPA (EclipseLink) and Spring. Say I have a simple entity with an auto-generated ID:
7 Answers
...
AngularJS check if form is valid in controller
I need to check if a form is valid in a controller.
4 Answers
4
...
What is included in JCenter repository in Gradle?
From Gradle 1.7 there is new Public repository JCenter.
4 Answers
4
...
How to form tuple column from two columns in Pandas
I've got a Pandas DataFrame and I want to combine the 'lat' and 'long' columns to form a tuple.
4 Answers
...
Postgres dump of only parts of tables for a dev snapshot
On production our database is a few hundred gigabytes in size. For development and testing, we need to create snapshots of this database that are functionally equivalent, but which are only 10 or 20 gigs in size.
...
How to make a Java Generic method static?
The following is a snippet on how to make a java generic class to append a single item to an array. How can I make appendToArray a static method. Adding static to the method signature results in compile errors.
...
Why does Typescript use the keyword “export” to make classes and interfaces public?
While dabbling with Typescript I realised my classes within modules (used as namespaces) were not available to other classes unless I wrote the export keyword before them, such as:
...
How to write header row with csv.DictWriter?
Assume I have a csv.DictReader object and I want to write it out as a CSV file. How can I do this?
3 Answers
...
Importing a Swift protocol in Objective-C class
I try to import a Swift Protocol named AnalyticProtocol into an Objective-C class named AnalyticFactory .
5 Answers
...
Is the order of iterating through std::map known (and guaranteed by the standard)?
What I mean is - we know that the std::map 's elements are sorted according to the keys. So, let's say the keys are integers. If I iterate from std::map::begin() to std::map::end() using a for , does the standard guarantee that I'll iterate consequently through the elements with keys, sorted i...