Package org.everit.json.schema.loader.internal

Class TypeBasedMultiplexer

java.lang.Object
org.everit.json.schema.loader.internal.TypeBasedMultiplexer
@Deprecated public class TypeBasedMultiplexer extends Object
Deprecated.
This class is deprecated. Currently it isn't used by the library itself, although it wasn't removed, to maintain backward compatiblity.

Used by org.everit.json.schema.loader.SchemaLoader.SchemaLoader during schema loading for type-based action selections. In other words this utility class is used for avoiding if..instanceof..casting constructs. Together with the TypeBasedMultiplexer.OnTypeConsumer implementations it forms a fluent API to deal with the parts of the JSON schema where multiple kind of values are valid for a given key.

Example usage: Object additProps = schemaJson.get("additionalProperties"); typeMultiplexer(additionalProps) .ifIs(JSONArray.class).then(arr -> {...if additProps is a JSONArray then process it... }) .ifObject().then(obj -> {...if additProps is a JSONArray then process it... }) .requireAny(); // throw a SchemaException if additProps is neither a JSONArray nor a JSONObject

This class it NOT thread-safe.

  • Constructor Details

    • TypeBasedMultiplexer

      public TypeBasedMultiplexer(Object obj)
      Deprecated.
      Constructor with null keyOfObj and null id.
      Parameters:
      obj - the object which' class is matched against the classes defined by ifIs(Class) (or ifObject()) calls.

    • TypeBasedMultiplexer

      public TypeBasedMultiplexer(String keyOfObj, Object obj)
      Deprecated.
      Contstructor with null id.
      Parameters:
      keyOfObj - is an optional (nullable) string used by requireAny() to construct the message of the SchemaException if no appropriate consumer action is found.
      obj - the object which' class is matched against the classes defined by ifIs(Class) (or ifObject()) calls.

    • TypeBasedMultiplexer

      public TypeBasedMultiplexer(String keyOfObj, Object obj, URI id)
      Deprecated.
      Constructor.
      Parameters:
      keyOfObj - is an optional (nullable) string used by requireAny() to construct the message of the SchemaException if no appropriate consumer action is found.
      obj - the object which' class is matched against the classes defined by ifIs(Class) (or ifObject()) calls.
      id - the scope id at the point where the multiplexer is initialized.

  • Method Details

    • addResolutionScopeChangeListener

      public void addResolutionScopeChangeListener(ResolutionScopeChangeListener resolutionScopeChangeListener)
      Deprecated.

    • ifIs

      public <E> TypeBasedMultiplexer.OnTypeConsumer<E> ifIs(Class<E> predicateClass)
      Deprecated.
      Creates a setter which will be invoked by orElse(Consumer) or requireAny() if obj is an instance of predicateClass.
      Type Parameters:
      E - the type represented by predicateClass.
      Parameters:
      predicateClass - the predicate class (the callback set by a subsequent TypeBasedMultiplexer.OnTypeConsumer.then(Consumer) will be executed if obj is an instance of predicateClass).
      Returns:
      an OnTypeConsumer implementation to be used to set the action performed if obj is an instance of predicateClass.
      Throws:
      IllegalArgumentException - if predicateClass is JSONObject. Use ifObject() for matching obj's class against JSONObject.

    • ifObject

      public TypeBasedMultiplexer.OnTypeConsumer<org.json.JSONObject> ifObject()
      Deprecated.
      Creates a JSONObject consumer setter.
      Returns:
      an OnTypeConsumer implementation to be used to set the action performed if obj is a JSONObject instance.

    • orElse

      public void orElse(Consumer<Object> orElseConsumer)
      Deprecated.
      Checks if the obj is an instance of any previously set classes (by ifIs(Class) or ifObject()), performs the mapped action of found or invokes orElseConsumer with the obj.
      Parameters:
      orElseConsumer - the callback to be called if no types matched.

    • requireAny

      public void requireAny()
      Deprecated.
      Checks if the obj is an instance of any previously set classes (by ifIs(Class) or ifObject()), performs the mapped action of found or throws with a SchemaException.