Tutorial by Examples: o

The MSDN library contains several different types of documentation which can be used for implementing features. Topic Overviews These are broad overviews of topics intended to provide a general understanding of an API. These overviews also often outline best practices, and implementation strategi...

Finding documentation for a feature is often as simple as a search using a good search engine. If that fails, or if unsure about specific terms, the Windows API Index can help locate specific features. Documentation for methods, interfaces, enumerations and constants can usually be found by searchin...

The documentation for a function is broken down into several sections: Overview Describes what the function is used for. This section will also show information about whether the function is depreciated, or may be unavailable in future versions. Syntax Shows the declaration of the function from ...

It's very simple to pass temp-tables in and out of programs, procedures and functions. This can be handy if you want a procedure to process a bigger number of data than you can easily store in a string or similar. You can pass temp-tables as INPUT, OUTPUT and INPUT-OUTPUT data. Inputting one temp-...

A Mercator projection is one of the most recognizable projections used in maps. Like all map projections it has distortion and for a Mercator, projection this is most noticeable in the polar regions. It is a cylindrical projection, meridians run vertically and latitudes run horizontally. Scale depe...

function cryptPassword(password, callback) { bcrypt.genSalt(SALT_WORK_FACTOR, function(err, salt) { if (err) return callback(err); bcrypt.hash(password, salt, null, function(err, hash) { return callback(err, hash); }); }); } User.beforeCreate((user, options, ...

User.beforeCreate(function(user, options) { return hashPassword(user.password).then(function (hashedPw) { user.password = hashedPw; }); })

FlinkKafkaConsumer let's you consume data from one or more kafka topics. versions The consumer to use depends on your kafka distribution. FlinkKafkaConsumer08: uses the old SimpleConsumer API of Kafka. Offsets are handled by Flink and committed to zookeeper. FlinkKafkaConsumer09: uses the new ...

As explained in the docs, With Flink’s checkpointing enabled, the Flink Kafka Consumer will consume records from a topic and periodically checkpoint all its Kafka offsets, together with the state of other operations, in a consistent manner. In case of a job failure, Flink will restore the streami...

SimpleStringSchema: SimpleStringSchema deserializes the message as a string. In case your messages have keys, the latter will be ignored. new FlinkKafkaConsumer09<>(kafkaInputTopic, new SimpleStringSchema(), prop); JSONDeserializationSchema JSONDeserializationSchema deserializes json-form...

In kafka, each consumer from the same consumer group gets assigned one or more partitions. Note that it is not possible for two consumers to consume from the same partition. The number of flink consumers depends on the flink parallelism (defaults to 1). There are three possible cases: kafka pa...

To use a custom schema, all you need to do is implement one of the SerializationSchema or DeserializationSchema interface. public class MyMessageSchema implements DeserializationSchema<MyMessage>, SerializationSchema<MyMessage> { @Override public MyMessage deserialize(byte[]...

set and multiset have default compare methods, but in some cases you may need to overload them. Let's imagine we are storing string values in a set, but we know those strings contain only numeric values. By default the sort will be a lexicographical string comparison, so the order won't match the n...

The most obvious method, if you just want to reset your set/multiset to an empty one, is to use clear: std::set<int> sut; sut.insert(10); sut.insert(15); sut.insert(22); sut.insert(3); sut.clear(); //size of sut is 0 Then the erase method can be used.  It offers some poss...

/** * requestdata - the data packet expected to be passed in by external system * JSON - data format exchange * stringify() convert javascript object into a string with JSON.stringify() * nlobjError - add in catch block to log exceptions */ function GetCustomerData(requestdata) { ...

@* Renders an anchor (a) element that links to an action method. * The innerHTML of "target-element" is replaced by the result of SomeAction. *@ @Ajax.ActionLink("Update", "SomeAction", new AjaxOptions{UpdateTargetId="target-element" })

@* Adds AJAX functions support to a form. * The innerHTML of "target-element" is replaced by the result of SomeAction. *@ @using ( Ajax.BeginForm("SomeAction", "SomeController", new AjaxOptions { UpdateTargetI...

Create an F# console application. Change the Output type of the application to Windows Application. Add the FsXaml NuGet package. Add these four source files, in the order listed here. MainWindow.xaml <Window xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" ...

It's a good idea to keep all icons and images in one or more folders. Right click on the project, and use F# Power Tools / New Folder to create a folder named Images. On disk, place your icon in the new Images folder. Back in Visual Studio, right click on Images, and use Add / Existing Item, then...

Create a text file named AppIcon.rc, with the following content. 1 ICON "AppIcon.ico" You will need an icon file named AppIcon.ico for this to work, but of course you can adjust the names to your liking. Run the following command. "C:\Program Files (x86)\Windows Kits\10\bin\x64\...