parameterized

问题 I'm not sure what I want to do is possible, but if it is, I want to find out how. Basically, I want to create a Map where the key is a class ( java.lang.Class ), and value for that entry is an instance of that class. Currently I have private Map<Class<?>, Object> myMap = new HashMap<Class<?>, Object>(); However, this means any Object can be placed in the Map. If it is possible, I want to make it, so only an instance of the class in the key can be placed in the map. Is there any way to use the

问题 My Approach while INSERT’ing INTO MySql I think I read in stackoverflow.com that “if you need escaping or similar action, do it just in time you need” so in the verification pages that I verify the user inputs (null or not check, length check and structural checks (eg: mail structure, custom tags structures); I use the $_POST[''] variables as inputs. During verifications, even in the custom error printing parts, my error messages does not include any of $_POST[''] values in message texts. As

问题 I need to get retrive all of the data from specified tables and I don't need the data to be strongly typed so I am returning it as a data table. public DataTable GetByTypeName(String t) { var type = Type.GetType(t); var dt = new DataTable(); using (var sqlConn = new SqlConnection(ConfigurationManager.ConnectionStrings["MasterPlanConnectionString"].ConnectionString)) { var sqlComm = new SqlCommand("SELECT * FROM @table", sqlConn); sqlComm.Parameters.AddWithValue("@table", type.Name); sqlConn

问题 I cannot find the reason of the errors from previously asked questions, because they were about "@Test" (which does not allow custom data types). I have a program which takes a String type input (which is usually a block of text), and returns input's sentences in the form of List. To test this program properly I tried to store my inputs and expected outputs (which will be compared to the outputs of my program, purpose of the test) in the form of List. Here DataStructure class consists of 2

问题 I am using MySQL Connector/Net and I want to write a query against a table whose name will be specified at runtime. This example is off the top of my head (not tested): public class DataAccess { public enum LookupTable { Table1, Table2, Table3 } public int GetLookupTableRowCount(LookupTable table) { string tableName = string.Empty; switch (table) { case LookupTable.Table1: tableName = "table_1"; break; case LookupTable.Table2: tableName = "table_2"; break; case LookupTable.Table3: tableName =

问题 I try to launch curl -X POST -u "user:pass" -H Jenkins-Crumb:thecrumbnumber http://myjenkinsserver/jenkins/job/testjob/buildWithParameters?=PARAMETER=somenumber which works by triggering a parametrized build, but the problem is no value is passed to the build (whats weird even when the token is set in the job, I can trigger the job without it). In jenkins, that job has a configured string "PARAMETER" with or without some default value, but never the parameter from the curl launch is passed.

问题 I am using parameterized queries in my C# code to interact with an Oracle database. What can I do to log the statements in a more readable fashion? Suppose I have a parameterized query like: INSERT INTO PERSON (ID, NAME, BIRTHDATE) VALUES (:id, :name, :birthdate) Ideally I would like to see the log entry with all parameters replaced so I could copy and paste the statement for later use: INSERT INTO PERSON (ID, NAME, BIRTHDATE) VALUES (23, ‘Mike’, TO_DATE('2003/07/09', 'yyyy/mm/dd') My current

问题 I have a class with a bunch of overloaded operators: public static double[,] operator +(Matrix matrix, double[,] array) public static double[,] operator -(Matrix matrix, double[,] array) public static double[,] operator *(Matrix matrix, double[,] array) For all of them I'd like to test operands for null. I have an NUnit test for that: public void MatrixOperatorOperandIsNullThrows(Func<Matrix, double[,], double[,]> op) { Matrix m = null; var right = new double[,] {{1, 1}, {1, 1}}; Assert

问题 I have a class with a bunch of overloaded operators: public static double[,] operator +(Matrix matrix, double[,] array) public static double[,] operator -(Matrix matrix, double[,] array) public static double[,] operator *(Matrix matrix, double[,] array) For all of them I'd like to test operands for null. I have an NUnit test for that: public void MatrixOperatorOperandIsNullThrows(Func<Matrix, double[,], double[,]> op) { Matrix m = null; var right = new double[,] {{1, 1}, {1, 1}}; Assert

问题 I was wondering, aside from syntactic difference, when would one use a generic interface over a method that accepts a generic parameter? public interface Flight<T>{ void fly(T obj); } over public interface Flight{ void <T> fly(T obj); } 回答1: If you declare a generic method , you always let the caller decide, which type arguments to use for the type parameters. The implementation of the method must be able to deal with all possible types arguments (and it doesn’t even have a way to ask for the