org.h2.util.json.JSONObject Maven / Gradle / Ivy
/*
* Copyright 2004-2019 H2 Group. Multiple-Licensed under the MPL 2.0,
* and the EPL 1.0 (https://h2database.com/html/license.html).
* Initial Developer: H2 Group
*/
package org.h2.util.json;
import java.util.AbstractMap.SimpleImmutableEntry;
import java.util.ArrayList;
import java.util.Map.Entry;
/**
* JSON object.
*/
public class JSONObject extends JSONValue {
private final ArrayList> members = new ArrayList<>();
JSONObject() {
}
/**
* Add a key-value pair.
*
* @param name the key
* @param value the value
*/
void addMember(String name, JSONValue value) {
members.add(new SimpleImmutableEntry<>(name, value));
}
@Override
public void addTo(JSONTarget target) {
target.startObject();
for (SimpleImmutableEntry member : members) {
target.member(member.getKey());
member.getValue().addTo(target);
}
target.endObject();
}
/**
* Returns the value.
*
* @return the value
*/
@SuppressWarnings("unchecked")
public Entry[] getMembers() {
return members.toArray(new Entry[0]);
}
/**
* Returns value of the first member with the specified name.
*
* @param name
* name of the member
* @return value of the first member with the specified name, or
* {@code null}
*/
public JSONValue getFirst(String name) {
for (SimpleImmutableEntry entry : members) {
if (name.equals(entry.getKey())) {
return entry.getValue();
}
}
return null;
}
}