Jsongenerator Class Example

The main conversion API is defined in ObjectCodec, so that implementation details of this class need not be exposed to streaming parser and generator classes. Jackson) of reading JSON. 0 0fdae27 Oct 8, 2019. In this example, we have an Employee class that contains some mixed type of properties namely integer, String and custom Compensation class type. Note that you can use the JavaTimeModule also when deserializing. Posts about JSON written by ykshinde. Download javax. writeArrayStart() for details on usage. 前言 Jackson自定义序列化方法前言关于Jackson工具类的相关学习和研究,先前已经写过一篇博文;但是,后来由于工作事情就草草结尾. User can also create their streams. This introduction to the REST features that are embedded into the Java EE 7 versions of IBM® WebSphere® Application Server demonstrates how you can create a simple JAX-RS 2. The only problem with Streaming API is that we need to take care of all the tokens while parsing JSON data. You can vote up the examples you like and your votes will be used in our system to generate more good examples. In the example above, the object "employees" is an array. The Dropwizard web framework, simplifies java web development significantly. Jackson provides classes that can be used to convert a Java Object to JSON and back. Table of Contents 1. sheet in an account called "accumulated amortization," reducing the example, is an. Options extends Object A builder used to construct a JsonGenerator instance that allows control over the serialized JSON output. That repository contains a Spring project, but the examples below work without Spring, too. Gson and Jackson are complete libraries offering JSON data-binding support for Java. found following explanation, example:express table entries fraction of marginal tablem <- matrix(1:4, 2) m prop. com/7z6d/j9j71. This example is based on Erels example, without the reading from file part as this is not supported in B4JS. The main conversion API is defined in ObjectCodec, so that implementation details of this class need not be exposed to streaming parser and generator classes. 1) Public Test Classes In Apex: Classes annotated with @istest no longer have to be private. A main method, asyncronous and static, that process the list of ids, creates a list of HTTP request with an opportunity in each request's body (using for example a JSONGenerator or a wrapper. Before jumping into code examples, lets define a simple pojo class which we will use in this example for conversion purpose. About the Author(s) David Herron: David Herron is a writer and software engineer focusing on the wise use of technology. Read/Write JSON Using Jackson ObjectMapper, JsonParser and JsonGenerator Example By Arvind Rai, March 01, 2015 This page will describe how to read JSON into Java object and write java object into JSON output using Jackson API. In this case the example is using the default array format. Clone via HTTPS Clone with Git or checkout with SVN using the repository’s web address. And we create generator object, pass an destination file as parameter. JsonParser and JsonGenerator class is used to read and write JSON content. He is especially interested in clean energy technologies like solar power, wind power, and electric cars. You can create a separate class as per the example or you can modify the existing one. That repository contains a Spring project, but the examples below work without Spring, too. The compiler will confirm at compile time that the method includes code that might throw an exception. Spring boot custom JSON Serialize - Deserialize Example or we can say Spring boot Jackson @JsonComponent Example for custom JSON Serialize or Deserialize. In this post you will learn how to set the default JAVA_HOME in OS X when you have more than one JDK installed in your computer. Below you will find examples of various genograms that illustrate a number of family situations that family trees may not be able to portray. How to create Json Array using Streaming Model API? This page shows how to create Json array object using Streaming API Model. The prefix renders the string syntactically invalid a. Here Publication class is abstract that's causing issues because we can't directly create an instance of an abstract class. java Find file Copy path cowtowncoder and add `final` back in 3. Parsing JSON into Java objects is. A unique value renderer symbolizes groups of graphics that have matching attributes. One approach is to export the personal data first using the code from the "data portability" section and review the blog title, subtitle, content, etc. To have a custom serializer for date fields you will need to. Custom UI5 Control Generator – SAP Web IDE Plugin custom UI5 controls. Implementation has no fields and therefore thread-safe, but sub-classes are not necessarily thread-safe. Json: This is the factory class for creating JSON processing objects. This tutorial shows the basics of DOM tree query and manipulation. For Slack to understand the information we send it, we use Salesforce’s JSONGenerator Class to format the message to be delivered. You can vote up the examples you like and your votes will be used in our system to generate more good examples. In Dropbox API v2, content-upload and content-download endpoints take their JSON arguments in the Dropbox-API-Arg HTTP header or in the arg URL parameter. io Packages in simple and easy steps : A beginner's tutorial containing complete knowledge of all the classes, interfaces, enumerations and exceptions have been explained with examples for beginners to advanced java programmers to understand Java Input, Output package. JSON-P JsonGenerator. VoiceThread Universal lets you browse threads and hear comments in pages specially designed for screen readers. JsonSlurper is a class that parses JSON text or reader content into Groovy data structures (objects) such as maps, lists and primitive types like Integer, Double, Boolean and String. For example, if you are to enclose a JSON fragment in XML attribute (or Javascript code), you might want to use apostrophe (') as quote character in XML, and force escaping of all apostrophes in JSON content; this allows you to simple embed encoded JSON value without other transformations. The class Json contains methods to create generators for character or output streams (Writer and OutputStream). In the streaming model, the JsonGenerator class is the main API to generate JSON data. JSON class has methods for serializing Apex objects into JSON format and deserializing JSON content that was serialized using the serialize method in this class, all the fields of the related objects are visible. The above example defines a class called Person that has 2 properties (name and age) that have constraints applied to them. For example, the start of JSON ‘{‘ is the first object that the parser provides. Previous data-binding posts gave the idea about how the POJO's are mapped to JSON and viceversa using ObjectMapper API. The following example shows how to create a JSON generator:. This class provides the most commonly used methods for creating these objects and their corresponding. This example shows how to generate a JSON document with ArduinoJson. Java Examples: JSON - Write JSON Array to output source in streaming way. JSON Generator generates data according to the template and saves it. The write() method adds object properties and their values to the JSON data. simple is a simple Java library for JSON processing, read and write JSON data and full compliance with JSON specification (RFC4627). RawValueDemoBean. java example. Note that in Java the annotations can be on the field or the getter and with Kotlin data classes the annotation should target the field. Clone via HTTPS Clone with Git or checkout with SVN using the repository’s web address. Here you’ll find examples of extending and the util classes to convert the HTML to a. February 16, 2019 in Apex JSON, JSON Class, JSON Generator, Salesforce This post explains how to generate JSON using Apex. excludeFieldsByType(Iterable>) - Method in JsonGenerator. firstName = firstName; this. よく使っているJacksonを使ったJSON⇔Object相互変換クラスです. GetRootNode()); &json = &jgen. php(143) : runtime-created function(1) : eval()'d code(156) : runtime-created. JsonGenerator. JsonGenerator is easy to use in comparison to JsonParser. For example, if the target type is called "Contact", then the ObjectFactory class will have a method: public JAXBElement createContact(Contact value) {. When using streaming, the content to read (and write) has to be processed in the exact same order as input comes in (or output is to go out). ARRAYS IN SALESFORCE – APEX TUTORIAL (EXAMPLES) Hello, Friends, I am very happy to tell you all with this useful information. AddItemArray. com/7z6d/j9j71. This is a short info on how to use unwrapping, custom Jackson Serializers. Serialize the JSON field as JSON I'm trying to serialize a String field as a JSON if it contains a JSON object. import java. It is a little ugly because it requires Java Reflection to invoke the JSONObject constructor. Jackson Streaming API. Feature; Field Summary. JSONGenerator class is provided to enable the generation of standard JSON-encoded content. To understand more about the Jackson library in general, the Jackson Tutorial is a good place to start. Invocable methods are called with the REST API and used to invoke a single Apex method. Examples of Activities: Science. The following is an example for JSON object. Instances are created using factory methods of a JsonFactory instance. Factory to create JsonGenerator instances. JSON class isn't identical to the standard JSON encoding in some cases, the System. public abstract class JsonGenerator extends Object implements Closeable, Flushable, Versioned. Basically my class has a DateTime field, so I put an annotation around the getter:. Nested classes/interfaces inherited from class com. Below you find the BasketItem class and the Controller. General Data Protection Regulation (GDPR) On May 25, 2018, a new privacy law called the General Data Protection Regulation (GDPR) takes effect in the European Union (EU). I have encountered similar problem and my solution is much clear than above. Once RapidJSON is installed, it is possible to use it from other CMake projects by adding find_package(RapidJSON) line to your CMakeLists. Refer to this example for more details. If you are beginner don't worry learn how to Create new Maven project - In 2 minutes. Class or Interface Description ; Json: Contains static methods to create instances of JSON parsers, builders,generators. Object implements java. Standard way to serialize and deserialize Objects with XStream Saturday, 21 December 2013 | Posted by Unknown By reading this article you can learn what is the standard way of using XStream in profeessional projects to generate XML or JSON or Objects. We have a Recording class which has a Java 8 java. One approach is to export the personal data first using the code from the “data portability” section and review the blog title, subtitle, content, etc. JsonNode refers to an individual node in tree which can be accessed using node name. Spring Boot has a great support for Logback and provides lot of features to configure it. There's currently no way to go straight from JsonNode to String with sorted keys. JsonGenerator lnv_JsonGenerator lnv_JsonGenerator = Create JsonGenerator // Create an object root item Long ll_RootObject = lnv_JsonGenerator. You can click to vote up the examples that are useful to you. In Dropbox API v2, content-upload and content-download endpoints take their JSON arguments in the Dropbox-API-Arg HTTP header or in the arg URL parameter. Streaming API: Consuming JSON. generator [protected] IMxRuntimeRequest com. Read and Write operations are faster using this approach. public abstract class JsonGenerator extends java. The client code can use the tokens and get the JSON properties or build a java object out of it if required. In the last tutorial we saw how to use @JsonSerialize#converter and @JsonDeserialize#converter attributes. While there are binary formats that allow for backwards-compatibility (Protobuf, Smile) in our examples we’ll just use JSON. Update (12/22/2015) Considering writing serialization classes instead? Check out Serializing POJOs with Jackson. Tag: Jackson, Jackson example, Jackson example – Read and write JSON, java j2ee online Training, java j2ee Training and Placement by mindsmapped, java training, java Training and Placement by mindsmapped, JSON, online java j2ee training, online java training, Parse a Json File, read and write json, Read Json, write Json. Various strategies can be used to search for certain contact details (like user alias, email addresses, phone numbers, etc). If a factory instance is configured with some configuration, the configuration applies to all generator instances created using that factory instance. JSONGenerator is much harder to use than to simply serialize Apex objects using JSON. Example In below example by Jacson API's generating JSON on runtime and writing on file. Converter interface. But how is the base class to know what properties exist in the subclasses? Really good question that I'm not going to fully answer, but the basics are PeopleCode App Class reflection (thank you Integration Broker team). This java examples will help you to understand the usage of com. 前言 Jackson自定义序列化方法前言关于Jackson工具类的相关学习和研究,先前已经写过一篇博文;但是,后来由于工作事情就草草结尾. createGeneratorFactory(). 以下是展示如何使用 com. com/7z6d/j9j71. Hi Everyone, I've got a question about how people are creating complex JSON for real world applications. Hi folks, I am trying to add a convenience method for my team that can serialize an Avro record in the C++ bindings to JSON with a few minor. AbstractShortcut This abstract GuiElement implementation serves as base for rendering information about the different types of ShortcutElement a toolbar might use for displaying its different options to the user. JSON Generator JSONGenerator: Since the JSON encoding that's generated by Apex through the serialization method in the System. Closeable, java. Convert Java object to JSON 3. 在使用logstash收集日志的时候,我们一般会使用logstash自带的动态索引模板,虽然无须我们做任何定制操作,就能把我们的日志数据推送到elasticsearch索引集群中,但是在我们查询的时候,就会发现,默认的索引模板常常把我们不需要分词的字段,给分词了,这样. The only method not supported (yet) is NextValue. LocalDate java 8 Custom Serializer Jackson JSON Example In this previous example we use serialize and deserialize classes provided by a Jackson third party datatype. This example is based on Erels example, without the reading from file part as this is not supported in B4JS. Notice: Undefined index: HTTP_REFERER in /home/yq2sw6g6/loja. Class Schedules. JSON Utils is a site for generating C#, VB. Once RapidJSON is installed, it is possible to use it from other CMake projects by adding find_package(RapidJSON) line to your CMakeLists. simple is a simple Java library for JSON processing, read and write JSON data and full compliance with JSON specification (RFC4627). In this use case we have a Customer bean with a complex object Address embedded within it and we want to prevent the serialization of a property name surburb and street in address, when the json serialization take place. writeArrayStart() for details on usage. Apply a Rule: The student could be asked to explain why a shotgun "kicks" when fired. The following example shows how to create a JSON generator: JsonGenerator generator = Json. net In this tutorial, I show you how to create a JSON content using Jackson JsonGenerator class and how to read JSON content using Jackson JsonParser class. public abstract class JsonGenerator extends Object implements Closeable, Flushable, Versioned. The generator writes name/value pairs in JSON objects and values in JSON arrays. public class InvalidDefinitionException extends JsonMappingException Intermediate exception type used as the base class for all JsonMappingException s that are due to problems with target type definition; usually a problem with annotations used on a class or its properties. Serialize the JSON field as JSON I'm trying to serialize a String field as a JSON if it contains a JSON object. Jackson Streaming API - read and write JSON In previous post, we have seen jackson example , but it reads whole json file in memory but if we have large json file, then it is not efficient. This post is organized in five steps. Finding out how to write serializers and deserializers can be frustrating, in no small part thanks to the enormous API Jackson comes with. These classes don't serialize correctly. Salesforce Developer Network: Salesforce1 Developer Resources. If you are beginner don't worry learn how to Create new Maven project - In 2 minutes. Use custom login flows to deliver different experiences by extracting the source from the URL where the customer is visiting from. When using streaming, the content to read (and write) has to be processed in the exact same order as input comes in (or output is to go out). Convert JSON to Java object. One great use case of a custom serializer is for overriding default behavior. Click here to go to VoiceThread Universal Amazing conversations about media. Jackson Tree model example, explaining how to treat JSON as conceptual tree. The answer to this after a many head banging dead ends and nerd rage tantrums is so simple. Once RapidJSON is installed, it is possible to use it from other CMake projects by adding find_package(RapidJSON) line to your CMakeLists. Table of Contents 1. JsonGenerator 的最佳示例。 我们使用了代码质量辨别算法从开源项目中提取出了最佳的优秀示例。 实例 1 package io. public class User { private String firstName; private String lastName; private Date dateOfBirth; private List emailAddrs; public User(String firstName,String lastName) { this. Jackson reads and writes JSON through a high-performance Jackson Streaming API, with a low memory and process overhead. In the example code repository, you can find one HTTP service made with Spring Boot. the easy solution. You can vote up the examples you like and your votes will be used in our system to generate more good examples. I simply used the pattern in @JSonFormat annotation. JsonGenerator. Write global Apex class with URL Mapping; Authentication process with OAuth2. Net, Javascript, Java and PHP classes from JSON. The client code can use the tokens and get the JSON properties or build a java object out of it if required. You can refer to all annotations by referring to the JavaDocs. Use the JSONGenerator class to generate JSON content. It works for me on plain JSON strings, however I wonder how to use it on nested objects (curly braces inside curly braces), it parses ok, at least no errors, however I wonder how to get an object inside another objects. Greg Mifsud Goodwin Financial Services. Genogram Examples. ObjectMapper) is the simplest way to parse JSON with Jackson. Jackson support Streaming processing also called as Incremental Processing. PRETTY_PRINTING ("javax. The following code examples are extracted from open source projects. Write JSON using JsonGenerator In this Jackson Json Streaming Example, we will use the JsonGenerator to write JSON content. Encoding for JSON Arguments. The example processes one hundred posts from jsonplaceholder. request [protected] The documentation for this class was generated from the following file:. We will serialize the Employee object to JSON and back. i've started learning r , have had trouble finding (understandable) explanation of prop. Java source code. public class User { @JsonSerialize(using=ObjectIdJsonSerializer. Lets dive into the B4X code: The B4JS class B4JSInputChecker:. Previous data-binding posts gave the idea about how the POJO's are mapped to JSON and viceversa using ObjectMapper API. We don't need to specify anything else, because Planet is very simple class and all fields are public. For this I wrote a custom serializer: public class. There are several important concepts in RapidJSON: Streams are channels for reading/writing JSON, which can be a in-memory string, or file stream, etc. Read and Write operations are faster using this approach. It's great but unfortunately we usually need different JSON for different methods even for the same class. jberet-support module contains jsonItemReader and jsonItemWriter batch artifacts for reading and writing JSON data. One approach is to export the personal data first using the code from the "data portability" section and review the blog title, subtitle, content, etc. First Example. x's ObjectMapper. Meet The Overflow, a newsletter by developers, for developers. toJson methods. Java Infinite recursion (StackOverflowError) Jackson solutions. THE unique Spring Security education if you’re working with Java today. Example Project Dependencies and Technologies Used:. public abstract class JsonGenerator extends Object implements Closeable, Flushable, Versioned. JsonPath is a simple class implementing the JSONPath syntax for extracting data out of a JSON tree. If you do not need to customize the output it is recommended to use the static JsonOutput. Generally a problem with properties or annotations used on a class. toString + "n");}}. The key value pair is another single object. Let us consider an example Java class that explains the use of @JsonRawValue. The class Json contains methods to create generators for character or output streams (Writer and OutputStream). Learn more about the JSON Processing (JSON-P) specification and how to use it in this blog post. Customizing JSON encoding for Avro C++ bindings. public static class JsonGenerator. JSON class isn't identical to the standard JSON encoding in some cases, the System. Implementation has no fields and therefore thread-safe, but sub-classes are not necessarily thread-safe. Example: Apex Class public class GenerateJSONDemo { public static strin. The generator writes name/value pairs in JSON objects and values in JSON arrays. JsonObjectBuilder,JsonArrayBuilder. The class Json contains methods to create generators for character or output streams (Writer and OutputStream). We can read JSON from different resources like String variable, file or any network. Method similar to JsonGenerator. Example of InvalidDefinitionException. In our example, we can read the jsonString into the JsonPrettyPrintDemoBean POJO. This class provides the most commonly used methods for creating these objects and their corresponding. JsonGenerator. The following are top voted examples for showing how to use org. The class Json contains methods to create generators for character or output streams. Jackson is a JSON API for java comprising: Jackson Core(Streaming API) - defines low-level streaming API, and includes JSON-specific implementations. The key value pair is another single object. Second, if we have no access to class sources, and have no ability to mark it with @JsonIgnoreType we can use Jackson dark magic mixins. Options extends Object A builder used to construct a JsonGenerator instance that allows control over the serialized JSON output. In this post you will learn how to set the default JAVA_HOME in OS X when you have more than one JDK installed in your computer. The Java API for JSON Processing provides portable APIs to parse, generate, transform, and query JSON. These source code samples are taken from different open source projects. firstName = firstName; this. As part of Java™ EE 7 was introduced Java™ API for JSON Processing (JSR-353). */ @SuppressWarnings (" serial ") public class DefaultPrettyPrinter: implements PrettyPrinter, Instantiatable< DefaultPrettyPrinter >, java. Below you will find examples of various genograms that illustrate a number of family situations that family trees may not be able to portray. 前言 Jackson自定义序列化方法前言关于Jackson工具类的相关学习和研究,先前已经写过一篇博文;但是,后来由于工作事情就草草结尾. it does not take into account if the user puts its cursor in the middle), but it shows some major concepts of B4JS. We will serialize the Employee object to JSON and back. Note that you can use the JavaTimeModule also when deserializing. The below code us for the same. I can see two different scenarios of using the Date field with consideration of TimeZone, one is when the user enters date and you need to display the same date on screen, what I mean is with same TimeZone, and other one is the Date is entered by Admin kind of user from his TmeZone and you need to display the the saved Date with users TimeZone. In a microservices architecture, services are fine-grained, the protocols are lightweight and modular making the application easier to understand, develop, test and resilient to architecture erosion. Default is false. See Encoder. I'm wondering why I can't use the method writeStringField() on the class variables below. 12 Aug 2015 on Programming, Development, Java, Jackson, JSON, (de)serialization Jackson is an excellent library for serializing and deserializing JSON data in Java. JsonGenerator. JSON-P JsonGenerator. Tag: Jackson, Jackson example, Jackson example - Read and write JSON, java j2ee online Training, java j2ee Training and Placement by mindsmapped, java training, java Training and Placement by mindsmapped, JSON, online java j2ee training, online java training, Parse a Json File, read and write json, Read Json, write Json. Slack’s API Formatting documentation provides several examples of what the message needs to look like. Methods Summary. Update (12/22/2015) Considering writing serialization classes instead? Check out Serializing POJOs with Jackson. In this example, we write Post Java bean object into JSON file "posts. JSON class isn't identical to the standard JSON encoding in some cases, the System. Json: This is the factory class for creating JSON processing objects. Generate JSON data and Convert in PageBlockTable Index Save Tweet Share In this post, I am going to share the information how to Generate JSON data and Convert in PageBlockTable and display the same in Visual Force page in tabular format. The following code examples are extracted from open source projects. To have a custom serializer for date fields you will need to. Use the JSONGenerator class to generate JSON content. 1, and I POST/GET JSON and XML objects which include Dates (java. It is used for reading and writing JSON among other tasks. Salesforce Developer Network: Salesforce1 Developer Resources. In this tutorial, I show you how to create a JSON content using Jackson JsonGenerator class and how to read JSON content using Jackson JsonParser class. ObjectMapper) is the simplest way to parse JSON with Jackson. Saurabh Gupta, Sr Projects Lead. The class Json contains methods to create generators for character or output streams (Writer and OutputStream). ARRAYS IN SALESFORCE – APEX TUTORIAL (EXAMPLES) Hello, Friends, I am very happy to tell you all with this useful information. This post will demonstrate same POJO to JSON Data-binding example using commonly used Jackson JSON Annotations. But it's faster and smaller. JsonGenerator lnv_JsonGenerator lnv_JsonGenerator = Create JsonGenerator // Create an object root item Long ll_RootObject = lnv_JsonGenerator. Parsing JSON into Java objects is. JsonNode, or any custom POJO bean provided by the batch application. zip( 69 k) The download jar file contains the following class files or Java source files. Java Infinite recursion (StackOverflowError) Jackson solutions. First, if we mark Tyres class by @JsonIgnoreType, tyres field will be present in JSON since its type is an array: Tyres[]. Jackson provides faster Streaming API i. It parses a JSON String and recursively converts it to a list or map of objects. A lot of new AST transformation annotations are added in Groovy 2. In this example, we only show the popular used annotations. Previous data-binding posts gave the idea about how the POJO's are mapped to JSON and viceversa using ObjectMapper API. There are so many overloaded versions of readValue() and writeValue() methods to work with byte array. In last couple of JSON tutorials for Java programmers, we have learned how to parse JSON using JSON-Simple library, parsing JSON array to Java array using GSon, and in this tutorial we will learn how to parse a large JSON file in Java using Jackson's Streaming API. java) is included in my "Source Code Warehouse" project. In this post, I am using Google URL shortening API to shorten the lead website URL. What is JSON? JSON stands for JavaScript Object Notation. This tutorial will demonstrate how to serialize Java object to JSON and de-serialize it back using Jackson 2. Here is a 60 Minutes Step by Step Do-It-Yourself Guide to Salesforce REST API for Non-Developers. Jackson Streaming API - read and write JSON In previous post, we have seen jackson example , but it reads whole json file in memory but if we have large json file, then it is not efficient. In the example in the introduction we used a binary format that while it was small and fast had one big issue in that it was hard or almost impossible to make backward-compatible. This converter can be used to bind to typed beans, or untyped HashMap instances. If you do not set that, then Spring does not invoke Jackson at all. Sending messages to a JMS topic is very similar to sending messages to a queue; simply inject the required resources and make some simple JMS API calls. Nested Class Summary. Write global Apex class with URL Mapping; Authentication process with OAuth2. Methods Summary. Note that in Java the annotations can be on the field or the getter and with Kotlin data classes the annotation should target the field. In the below example we use JsonGenerator. For Slack to understand the information we send it, we use Salesforce’s JSONGenerator Class to format the message to be delivered. This write-up focuses on understanding the Jackson ObjectMapper class – and how to serialize Java objects into JSON and deserialize JSON string into Java objects. Let's say that we are a music company and we want to publish an API where users can query for Album. Please support CoderCrunch by allowing Ads. public class InvalidDefinitionException extends JsonMappingException Intermediate exception type used as the base class for all JsonMappingException s that are due to problems with target type definition; usually a problem with annotations used on a class or its properties. JSON class isn't identical to the standard JSON encoding in some cases, the System. JSON filters for Spring MVC Spring MVC easily allows us to convert the responce body to JSON. In the example above, the object "employees" is an array. Various strategies can be used to search for certain contact details (like user alias, email addresses, phone numbers, etc). If you do not set that, then Spring does not invoke Jackson at all. JSON (JavaScript Object Notation) is a notation for data communication, as well as XML, for example. The client code can use the tokens and get the JSON properties or build a java object out of it if required. Description. Apply a Rule: The student could be asked to explain why a shotgun "kicks" when fired.