Sometimes, we might need to connect to a different machine to execute a few commands or transfer files to it. This article will discuss how to connect to a remote machine/server using Java. We have also made a video on this topic, which you can find at the end of this article. Please feel free […]
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@JsonAnySetter annotation allows the non-static setter method to deserialize unmapped/unrecognized JSON properties. It’s not mandatory to populate unrecognized properties in a map using the setter method, but for simplicity, we are populating them in a map. We can also use @JsonAnyGetter annotation at the getter method of the same map to serialize these unrecognized properties
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@JsonAnyGetter annotation allows key/value pairs of the map to be used as JSON standard properties. This annotation can be applied to a non-static method that does not accept any argument and return a map of key-value pair. These key-value pairs are serialized as JSON properties along with standard fields. Few points about @JsonAnyGetter annotation –
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@JsonValue allows annotated field or getter method to be used as a single value for object serialization. This overrides the usual method of showing properties as JSON output in serialization. In a class, only one field or getter method should be annotated using @JsonValue. If this annotation is found more than once, an exception will
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Let’s first discuss what problem does @JsonRawValue solves? Let’s consider a nested JSON as shown below. Now, what if I want to make this JSON from an object. There are multiple ways to do this but let’s say that we passed the nested JSON as a string to the description field, as shown below. But
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@JsonProperty annotation is used to change the field name while serializing or deserializing the JSON. If @JsonProperty annotation is not used on a field, the field name will be treated as the JSON key name, and the same will appear in the JSON. We can use the @JsonProperty annotation either on the field or the
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@JsonPropertyOrder annotation defines the order of properties while serializing an object. In this post, we will be discussing the @JsonPropertyOrder annotation in detail. So, where would you need to use the @JsonPropertyOrder annotation? This annotation will be helpful in the scenario where we want a particular order of the fields. Say we have three fields
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In this post, we will learn how to integrate hibernate with spring. Earlier in this post, we have learned how to connect MySQL database with spring using JdbcTemplate. Now, we will do the same but using hibernate. Note: If you find any difficulty while reading this post, we have kept the source code at the
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This post will discuss the threadPoolSize attribute of @Test annotation in TestNG. So, let’s dive in. Now, what is the use of threadPoolSize attribute? The answer is that you will need this attribute whenever you want to run a test method multiple times and in parallel. The method will be invoked from multiple threads as
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This post will discuss how to execute the same test method or test case multiple times. Let’s first create a test method that we can run multiple times. Below is our CodekruTest class which will have one test method that we will run five times. CodekruTest.java Now, we will be using the invocationCount attribute of
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