com.fasterxml.jackson.databind

Class JsonMappingException.Reference

  • java.lang.Object
    • com.fasterxml.jackson.databind.JsonMappingException.Reference
  • All Implemented Interfaces:
    Serializable
    Enclosing class:
    JsonMappingException

    public static class JsonMappingException.Reference
extends Object
implements Serializable
    Simple bean class used to contain references. References can be added to indicate execution/reference path that lead to the problem that caused this exception to be thrown.
    See Also:
    Serialized Form

    • Field Detail

      • _from

        protected transient Object _from

      • _fieldName

        protected String _fieldName
        Name of field (for beans) or key (for Maps) that is part of the reference. May be null for Collection types (which generally have _index defined), or when resolving Map classes without (yet) having an instance to operate on.

      • _index

        protected int _index
        Index within a Collection instance that contained the reference; used if index is relevant and available. If either not applicable, or not available, -1 is used to denote "not known" (or not relevant).

      • _desc

        protected String _desc
        Lazily-constructed description of this instance; needed mostly to allow JDK serialization to work in case where _from is non-serializable (and has to be dropped) but we still want to pass actual description along.
        Since:
        2.8

    • Constructor Detail

      • Reference

        protected Reference()
        Default constructor for deserialization/sub-classing purposes

      • Reference

        public Reference(Object from)

      • Reference

        public Reference(Object from,
                 String fieldName)

      • Reference

        public Reference(Object from,
                 int index)

    • Method Detail

      • getFrom

        public Object getFrom()
        Object through which reference was resolved. Can be either actual instance (usually the case for serialization), or Class (usually the case for deserialization).

        Note that this value must be `transient` to allow serializability (as often such Object is NOT serializable; or, in case of `Class`, may not available at the point of deserialization). As such will return `null` if instance has been passed using JDK serialization.

      • getFieldName

        public String getFieldName()

      • getIndex

        public int getIndex()

      • getDescription

        public String getDescription()

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