identity

问题 data Type is a descriptor of a set of values that lack identity What does mean by Lack of identity here? 回答1: Referring to the UML DataType description on IBM's Help Center: A data type is similar to a class; however, instances of data type are identified only by their value. If two data types have the same value, the instances are considered identical. So this means, that you can't seperate these objects of this DataType by their identifier, because they don't have any. Only the current

问题 data Type is a descriptor of a set of values that lack identity What does mean by Lack of identity here? 回答1: Referring to the UML DataType description on IBM's Help Center: A data type is similar to a class; however, instances of data type are identified only by their value. If two data types have the same value, the instances are considered identical. So this means, that you can't seperate these objects of this DataType by their identifier, because they don't have any. Only the current

问题 We have a SAML 2.0 federated environment (IDP and SP). I would like to generate a custom attribute for assertions created only for one SP. As such, I will not modify the IDP configuration. The snippet of the SAML Assertion we need to create: < saml:Attribute NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:uri" > Name="urn:oasis:names:tc:SAML:2.0:profiles:attribute:DCE:groups" > < saml:AttributeValue xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" > xsi:type="xsd:string"> ABCD

问题 i hope somebody had a similar problem and can give be advice. I researched for quite some time but couldn't find a definitive answer. My Set Up: 1 MsSQL Database (contains the Identity Tables of System.Web.Security) Many DLLs in .Net Framework (Using System.Web.Security for Log-In) Multiple different Programs/Apps calling the DLLs WebForms GUI in .Net Framework (Using System.Web.Security for Log-In) What I want: Use IdentityServer4 in .net Core or .Net Framework Keep DLLs in .Net Framework

问题 Here's an example: use std::rc::Rc; #[derive(PartialEq, Eq)] struct MyId; pub fn main() { let rc_a_0 = Rc::new(MyId); let rc_a_1 = rc_a_0.clone(); let rc_b_0 = Rc::new(MyId); let rc_b_1 = rc_b_0.clone(); println!("rc_a_0 == rc_a_1: {:?}", rc_a_0 == rc_a_1); println!("rc_a_0 == rc_b_0: {:?}", rc_a_0 == rc_b_0); } Both println! s above print true . Is there a way distinguish between the rc_a_* and rc_b_* pointers? 回答1: You can cast &*rc to *const T to get a pointer to the underlying data and

问题 Here's an example: use std::rc::Rc; #[derive(PartialEq, Eq)] struct MyId; pub fn main() { let rc_a_0 = Rc::new(MyId); let rc_a_1 = rc_a_0.clone(); let rc_b_0 = Rc::new(MyId); let rc_b_1 = rc_b_0.clone(); println!("rc_a_0 == rc_a_1: {:?}", rc_a_0 == rc_a_1); println!("rc_a_0 == rc_b_0: {:?}", rc_a_0 == rc_b_0); } Both println! s above print true . Is there a way distinguish between the rc_a_* and rc_b_* pointers? 回答1: You can cast &*rc to *const T to get a pointer to the underlying data and

问题 I went to the Manage NuGet Package option and updated all the packages. I'm not using much: Linq-to-EF 6.1 and the packages needed to make MS Identity work. However, something broke because now when I go to log in, I get an error Exception Details: System.Data.SqlClient.SqlException: Invalid column name 'Email'. Invalid column name 'EmailConfirmed'. Invalid column name 'PhoneNumber'. Invalid column name 'PhoneNumberConfirmed'. //and so on The exception looks like this: What might have caused

问题 I write websocket chat. How to generate unique id for user? now i use this code: id = new DateTime.now().millisecondsSinceEpoch; is there any more neat solution? 回答1: 1. There is a UUID pub package: http://pub.dartlang.org/packages/uuid example usage: // Generate a v1 (time-based) id uuid.v1(); // -> '6c84fb90-12c4-11e1-840d-7b25c5ee775a' // Generate a v4 (random) id uuid.v4(); // -> '110ec58a-a0f2-4ac4-8393-c866d813b8d1' // Generate a v5 (namespace-name-sha1-based) id uuid.v5(uuid.NAMESPACE

问题 I have a set of tables which I am going to clear out and upload new data into. One of these, Person has foreign keys pointing to it which prevent me from using TRUNCATE Table even though the other tables are empty. I have used DELETE FROM after turning off the foreign key checks to get around this. This works except when I insert new values they start at the old value going up and I need them to reset to start at 1 again (or at least some consistent predictable value) DBCC CHECKIDENT ([Person

问题 I had a bug where I was relying on methods being equal to each other when using is . It turns out that's not the case: >>> class What(object): def meth(self): pass >>> What.meth is What.meth False >>> inst = What() >>> inst.meth is inst.meth False Why is that the case? It works for regular functions: >>> def func(): pass >>> func is func True 回答1: Method objects are created each time you access them . Functions act as descriptors, returning a method object when their .__get__ method is called