Package co.elastic.clients.json

Interface LookAheadJsonParser

All Superinterfaces:
AutoCloseable, Closeable, jakarta.json.stream.JsonParser
All Known Implementing Classes:
JacksonJsonpParser
public interface LookAheadJsonParser extends jakarta.json.stream.JsonParser

  • Nested Class Summary

    Nested classes/interfaces inherited from interface jakarta.json.stream.JsonParser

    jakarta.json.stream.JsonParser.Event

  • Method Summary

    Modifier and Type
    Method
    Description
    <Variant> Map.Entry<Variant,jakarta.json.stream.JsonParser>
    findVariant(Map<String,Variant> variants)
    In union types, find the variant to be used by looking up property names in the JSON stream until we find one that uniquely identifies the variant.
    Map.Entry<String,jakarta.json.stream.JsonParser>
    lookAheadFieldValue(String name, String defaultValue)
    Look ahead the value of a text property in the JSON stream.

    Methods inherited from interface jakarta.json.stream.JsonParser

    close, getArray, getArrayStream, getBigDecimal, getInt, getLocation, getLong, getObject, getObjectStream, getString, getValue, getValueStream, hasNext, isIntegralNumber, next, skipArray, skipObject

  • Method Details

    • lookAheadFieldValue

      Map.Entry<String,jakarta.json.stream.JsonParser> lookAheadFieldValue(String name, String defaultValue)
      Look ahead the value of a text property in the JSON stream. The parser must be on the START_OBJECT event.
      Parameters:
      name - the field name to look up.
      defaultValue - default value if the field is not found.
      Returns:
      a pair containing the field value (or null if not found), and a parser to be used to read the JSON object.

    • findVariant

      <Variant> Map.Entry<Variant,jakarta.json.stream.JsonParser> findVariant(Map<String,Variant> variants)
      In union types, find the variant to be used by looking up property names in the JSON stream until we find one that uniquely identifies the variant.
      Type Parameters:
      Variant - the type of variant descriptors used by the caller.
      Parameters:
      variants - a map of variant descriptors, keyed by the property name that uniquely identifies the variant.
      Returns:
      a pair containing the variant descriptor (or null if not found), and a parser to be used to read the JSON object.