Module tools.jackson.databind
Package tools.jackson.databind.ser.std

Class ArraySerializerBase<T>

java.lang.Object
tools.jackson.databind.ValueSerializer<T>
tools.jackson.databind.ser.std.StdSerializer<T>
tools.jackson.databind.ser.std.StdContainerSerializer<T>
tools.jackson.databind.ser.std.ArraySerializerBase<T>
Type Parameters:
T - Type of arrays serializer handles
All Implemented Interfaces:
JsonFormatVisitable
Direct Known Subclasses:
JDKArraySerializers.BooleanArraySerializer, JDKArraySerializers.DoubleArraySerializer, JDKArraySerializers.IntArraySerializer, JDKArraySerializers.TypedPrimitiveArraySerializer, ObjectArraySerializer, StringArraySerializer
public abstract class ArraySerializerBase<T> extends StdContainerSerializer<T>
Intermediate base class for serializers used for various Java arrays.

  • Field Details

    • _unwrapSingle

      protected final Boolean _unwrapSingle
      Setting for specific local override for "unwrap single element arrays": true for enable unwrapping, false for preventing it, `null` for using global configuration.

  • Constructor Details

  • Method Details

    • _withResolved

      public abstract ValueSerializer<?> _withResolved(BeanProperty prop, Boolean unwrapSingle)

    • createContextual

      public ValueSerializer<?> createContextual(SerializationContext serializers, BeanProperty property)
      Description copied from class: ValueSerializer
      Method called to see if a different (or differently configured) serializer is needed to serialize values of specified property (or, for root values, in which case `null` is passed). 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.

      Note that method is only called once per POJO property, and for the first usage as root value serializer; it is not called for every serialization, as doing that would have significant performance impact; most serializers cache contextual instances for future use.

      Overrides:
      createContextual in class ValueSerializer<T>
      Parameters:
      serializers - Context to use for accessing config, other serializers
      property - Property (defined by one or more accessors - field or method - used for accessing logical property value) for which serializer is used to be used; or, `null` for root value (or in cases where caller does not have this information, which is handled as root value case).
      Returns:
      Serializer to use for serializing values of specified property; may be this instance or a new instance.

    • serializeWithType

      public final void serializeWithType(T value, JsonGenerator g, SerializationContext ctxt, TypeSerializer typeSer) throws JacksonException
      Description copied from class: ValueSerializer
      Method that can be called to ask implementation to serialize values of type this serializer handles, using specified type serializer for embedding necessary type information.

      Default implementation will throw UnsupportedOperationException to indicate that proper type handling needs to be implemented.

      For simple datatypes written as a single scalar value (JSON String, Number, Boolean), implementation would look like: 

        // note: method to call depends on whether this type is serialized as JSON scalar, object or Array!
  typeSer.writeTypePrefixForScalar(value, gen);
  serialize(value, gen, provider);
  typeSer.writeTypeSuffixForScalar(value, gen);
      and implementations for type serialized as JSON Arrays or Objects would differ slightly, as START-ARRAY/END-ARRAY and START-OBJECT/END-OBJECT pairs need to be properly handled with respect to serializing of contents.
      Overrides:
      serializeWithType in class ValueSerializer<T>
      Parameters:
      value - Value to serialize; can not be null.
      g - Generator used to output resulting Json content
      ctxt - Context that can be used to get serializers for serializing Objects value contains, if any.
      typeSer - Type serializer to use for including type information
      Throws:
      JacksonException

    • serializeContents

      protected abstract void serializeContents(T value, JsonGenerator jgen, SerializationContext provider) throws JacksonException
      Throws:
      JacksonException

    • _shouldUnwrapSingle

      protected final boolean _shouldUnwrapSingle(SerializationContext provider)