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Merge pull request #14431 from sam-gardner/BAEL-6749-improve-examples-for-handling-null-fields-with-jackson 

BAEL-6749 improve examples for handling null fields with Jackson
This commit is contained in:
davidmartinezbarua 2023-07-19 14:18:50 -03:00 committed by GitHub
parent 2f2c18a7d8 2fec1f1f7e
commit 6f78670338
2 changed files with 3 additions and 6 deletions
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5
jackson-modules/jackson-core/src/main/java/com/baeldung/jackson/defaultvalues/JsonSetterDefaultValue.java → jackson-modules/jackson-core/src/main/java/com/baeldung/jackson/defaultvalues/SetterDefaultValue.java
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@ -1,13 +1,10 @@
package com.baeldung.jackson.defaultvalues;
import com.fasterxml.jackson.annotation.JsonSetter;
public class JsonSetterDefaultValue {
public class SetterDefaultValue {
private String required;
private String optional = "valueIfMissingEntirely";
@JsonSetter("optional")
public void setOptional(String optional){
if(optional == null){
this.optional = "valueIfNull";

4
jackson-modules/jackson-core/src/test/java/com/baeldung/jackson/defaultvalues/DefaultValuesUnitTest.java
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@ -17,10 +17,10 @@ public class DefaultValuesUnitTest {
}
@Test
public void givenAClassWithAJsonSetter_whenReadingJsonWithNullOptionalValue_thenExpectDefaultValueInResult() throws JsonProcessingException {
public void givenAClassWithASetter_whenReadingJsonWithNullOptionalValue_thenExpectDefaultValueInResult() throws JsonProcessingException {
String nullOptionalField = "{\"required\": \"value\", \"optional\": null}";
ObjectMapper objectMapper = new ObjectMapper();
JsonSetterDefaultValue createdObject = objectMapper.readValue(nullOptionalField, JsonSetterDefaultValue.class);
SetterDefaultValue createdObject = objectMapper.readValue(nullOptionalField, SetterDefaultValue.class);
assert(createdObject.getRequired()).equals("value");
assert(createdObject.getOptional()).equals("valueIfNull");
}