Java Utililty Methods Json

List of utility methods to do Json

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Description

The list of methods to do Json are organized into topic(s).

Method

DoubletoDouble(Object input)
to Double 
return ((JsonNumber) input).doubleValue();
JsonArraytoJsonArrayString(Iterator items)
to Json Array String 
JsonArrayBuilder builder = Json.createArrayBuilder();
while (items.hasNext()) {
    builder.add(items.next());
return builder.build();
JsonObjectunion(JsonObject... values)
Merges (unions) a list of Json objects into one object. 
JsonObjectBuilder builder = Json.createObjectBuilder();
for (JsonObject v : values) {
    for (Map.Entry<String, JsonValue> e : v.entrySet()) {
        builder.add(e.getKey(), e.getValue());
return builder.build();
voidwriteMandatoryDateField(JsonGenerator generator, String fieldName, Date value)
write Mandatory Date Field 
String formattedValue = formatDate(value);
writeMandatoryStringField(generator, fieldName, formattedValue);
voidwriteReferenceValue(JsonGenerator generator, Integer value)
Write a reference value (integer or null) into a JsonArray. 
if (value == null) {
    generator.write(JsonValue.NULL);
} else {
    generator.write(value);