Package edu.internet2.middleware.grouperClientExt.com.fasterxml.jackson.databind.deser.std

Class DateDeserializers.SqlDateDeserializer

java.lang.Object
edu.internet2.middleware.grouperClientExt.com.fasterxml.jackson.databind.JsonDeserializer<T>
edu.internet2.middleware.grouperClientExt.com.fasterxml.jackson.databind.deser.std.StdDeserializer<T>
edu.internet2.middleware.grouperClientExt.com.fasterxml.jackson.databind.deser.std.StdScalarDeserializer<T>
edu.internet2.middleware.grouperClientExt.com.fasterxml.jackson.databind.deser.std.DateDeserializers.DateBasedDeserializer<Date>
edu.internet2.middleware.grouperClientExt.com.fasterxml.jackson.databind.deser.std.DateDeserializers.SqlDateDeserializer
All Implemented Interfaces:
ContextualDeserializer, NullValueProvider, ValueInstantiator.Gettable, Serializable
Enclosing class:
DateDeserializers
public static class DateDeserializers.SqlDateDeserializer extends DateDeserializers.DateBasedDeserializer<Date>
Compared to plain old Date, SQL version is easier to deal with: mostly because it is more limited.
See Also:

  • Constructor Details

  • Method Details

    • withDateFormat

      protected DateDeserializers.SqlDateDeserializer withDateFormat(DateFormat df, String formatString)
      Specified by:
      withDateFormat in class DateDeserializers.DateBasedDeserializer<Date>

    • getEmptyValue

      public Object getEmptyValue(DeserializationContext ctxt)
      Description copied from class: JsonDeserializer
      Method called to determine value to be used for "empty" values (most commonly when deserializing from empty JSON Strings). Usually this is same as JsonDeserializer.getNullValue(edu.internet2.middleware.grouperClientExt.com.fasterxml.jackson.databind.DeserializationContext) (which in turn is usually simply Java null), but it can be overridden for specific types. Or, if type should never be converted from empty String, method can also throw an exception.

      This method may be called once, or multiple times, depending on what JsonDeserializer.getEmptyAccessPattern() returns.

      Default implementation simply calls JsonDeserializer.getNullValue(edu.internet2.middleware.grouperClientExt.com.fasterxml.jackson.databind.DeserializationContext) and returns value.

      Overrides:
      getEmptyValue in class JsonDeserializer<Date>

    • deserialize

      public Date deserialize(JsonParser p, DeserializationContext ctxt) throws IOException
      Description copied from class: JsonDeserializer
      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).

      Note that this method is never called for JSON null literal, and thus deserializers need (and should) not check for it.

      Specified by:
      deserialize in class JsonDeserializer<Date>
      Parameters:
      p - Parsed used for reading JSON content
      ctxt - Context that can be used to access information about this deserialization activity.
      Returns:
      Deserialized value
      Throws:
      IOException