Class DurationDeserializer

java.lang.Object
tools.jackson.databind.ValueDeserializer<Duration>
tools.jackson.databind.deser.std.StdDeserializer<Duration>
tools.jackson.databind.deser.std.StdScalarDeserializer<Duration>
tools.jackson.databind.ext.javatime.deser.JSR310DeserializerBase<Duration>
tools.jackson.databind.ext.javatime.deser.DurationDeserializer
All Implemented Interfaces:
NullValueProvider, ValueInstantiator.Gettable
public class DurationDeserializer extends JSR310DeserializerBase<Duration>
Deserializer for java.time temporal Durations.

  • Field Details

    • INSTANCE

      public static final DurationDeserializer INSTANCE

    • _durationUnitConverter

      protected final DurationUnitConverter _durationUnitConverter
      When defined (not null) integer values will be converted into duration unit configured for the converter. Using this converter will typically override the value specified in DateTimeFeature.READ_DATE_TIMESTAMPS_AS_NANOSECONDS as it is considered that the unit set in JsonFormat.pattern() has precedence since it is more specific.

      See [jackson-modules-java8#184] for more info.

    • _readTimestampsAsNanosOverride

      protected final Boolean _readTimestampsAsNanosOverride
      Flag for JsonFormat.Feature.READ_DATE_TIMESTAMPS_AS_NANOSECONDS

  • Constructor Details

  • Method Details

    • withLeniency

      protected DurationDeserializer withLeniency(Boolean leniency)
      Specified by:
      withLeniency in class JSR310DeserializerBase<Duration>

    • withConverter

      protected DurationDeserializer withConverter(DurationUnitConverter converter)

    • createContextual

      public ValueDeserializer<?> createContextual(DeserializationContext ctxt, BeanProperty property)
      Description copied from class: ValueDeserializer
      Method called to see if a different (or differently configured) deserializer is needed to deserialize values of specified property. Note that instance that this method is called on is typically shared one and as a result method should NOT modify this instance but rather construct and return a new instance. This instance should only be returned as-is, in case it is already suitable for use.
      Overrides:
      createContextual in class ValueDeserializer<Duration>
      Parameters:
      ctxt - Deserialization context to access configuration, additional deserializers that may be needed by this deserializer
      property - Method, field or constructor parameter that represents the property (and is used to assign deserialized value). Should be available; but there may be cases where caller cannot provide it and null is passed instead (in which case impls usually pass 'this' deserializer as is)
      Returns:
      Deserializer to use for deserializing values of specified property; may be this instance or a new instance.

    • deserialize

      public Duration deserialize(tools.jackson.core.JsonParser parser, DeserializationContext context) throws tools.jackson.core.JacksonException
      Description copied from class: ValueDeserializer
      Method that can be called to ask implementation to deserialize JSON content into the value type this serializer handles. Returned instance is to be constructed by method itself.

      Pre-condition for this method is that the parser points to the first event that is part of value to deserializer (and which is never JSON 'null' literal, more on this below): for simple types it may be the only value; and for structured types the Object start marker or a FIELD_NAME.

      The two possible input conditions for structured types result from polymorphism via fields. In the ordinary case, Jackson calls this method when it has encountered an OBJECT_START, and the method implementation must advance to the next token to see the first field name. If the application configures polymorphism via a field, then the object looks like the following. 

            {
          "@class": "class name",
          ...
      }
      Jackson consumes the two tokens (the @class field name and its value) in order to learn the class and select the deserializer. Thus, the stream is pointing to the FIELD_NAME for the first field after the @class. Thus, if you want your method to work correctly both with and without polymorphism, you must begin your method with: 
             if (p.currentToken() == JsonToken.START_OBJECT) {
         p.nextToken();
       }
      This results in the stream pointing to the field name, so that the two conditions align.

      Post-condition is that the parser will point to the last event that is part of deserialized value (or in case deserialization fails, event that was not recognized or usable, which may be the same event as the one it pointed to upon call).

      Handling null values (JsonToken.VALUE_NULL)
      : Note that this method is never called for the JSON null literal to avoid every deserializer from having to handle null values. Instead, the ValueDeserializer.getNullValue(DeserializationContext) method is called to produce a null value. To influence null handling, custom deserializers should override ValueDeserializer.getNullValue(DeserializationContext) and usually also ValueDeserializer.getNullAccessPattern().

      Specified by:
      deserialize in class ValueDeserializer<Duration>
      Parameters:
      parser - Parser used for reading JSON content
      context - Context that can be used to access information about this deserialization activity.
      Returns:
      Deserialized value
      Throws:
      tools.jackson.core.JacksonException

    • _fromString

      protected Duration _fromString(tools.jackson.core.JsonParser parser, DeserializationContext ctxt, String value0) throws tools.jackson.core.JacksonException
      Throws:
      tools.jackson.core.JacksonException

    • _fromTimestamp

      protected Duration _fromTimestamp(DeserializationContext ctxt, long ts)

    • shouldReadTimestampsAsNanoseconds

      protected boolean shouldReadTimestampsAsNanoseconds(DeserializationContext context)