Created
January 23, 2018 14:20
-
-
Save silmeth/ed06498d44770471bbd355f2df8f4d57 to your computer and use it in GitHub Desktop.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| import java.util.List; | |
| import com.fasterxml.jackson.annotation.JsonCreator; | |
| import com.fasterxml.jackson.annotation.JsonProperty; | |
| import com.fasterxml.jackson.core.type.TypeReference; | |
| import com.fasterxml.jackson.databind.ObjectMapper; | |
| import org.junit.jupiter.api.Test; | |
| import static java.util.Arrays.asList; | |
| import static org.junit.jupiter.api.Assertions.assertEquals; | |
| final class TypeReferenceTest { | |
| @Test | |
| public void test() throws Exception { | |
| final String str = "[{\"foo\": 3, \"bar\": \"boo\" }, { \"foo\": -3, \"bar\": \"boo2\" }]"; | |
| List<Object> value = new ObjectMapper().readValue(str, new TypeReference<List<Foo>>() { }); | |
| System.out.println(value); // prints [Foo(foo = 3, bar = "boo"), Foo(foo = -3, bar = "boo2")] | |
| assertEquals(asList(new Foo(3, "boo"), new Foo(-3, "boo2")), value); | |
| } | |
| static class Foo { | |
| @JsonCreator | |
| Foo(@JsonProperty("foo") int foo, @JsonProperty("bar") String bar) { | |
| this.foo = foo; | |
| this.bar = bar; | |
| } | |
| @JsonProperty("foo") | |
| int foo; | |
| @JsonProperty("bar") | |
| String bar; | |
| @Override | |
| public String toString() { | |
| return "Foo(foo = " + foo + ", bar = \"" + bar + "\")"; | |
| } | |
| @Override | |
| public boolean equals(Object other) { | |
| if (this == other) { | |
| return true; | |
| } | |
| if (!(other instanceof Foo)) { | |
| return false; | |
| } | |
| Foo that = (Foo) other; | |
| return this.foo == that.foo && this.bar.equals(that.bar); | |
| } | |
| @Override | |
| public int hashCode() { | |
| throw new IllegalStateException("unimplemented"); | |
| } | |
| } | |
| } |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment