Package org.apache.flink.formats.json

Class JsonDeserializationSchema<T>

java.lang.Object
org.apache.flink.api.common.serialization.AbstractDeserializationSchema<T>
org.apache.flink.formats.json.JsonDeserializationSchema<T>
All Implemented Interfaces:
Serializable, org.apache.flink.api.common.serialization.DeserializationSchema<T>, org.apache.flink.api.java.typeutils.ResultTypeQueryable<T>
@PublicEvolving public class JsonDeserializationSchema<T> extends org.apache.flink.api.common.serialization.AbstractDeserializationSchema<T>
DeserializationSchema that deserializes a JSON String.
See Also:

  • Nested Class Summary

    Nested classes/interfaces inherited from interface org.apache.flink.api.common.serialization.DeserializationSchema

    org.apache.flink.api.common.serialization.DeserializationSchema.InitializationContext

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    protected org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.ObjectMapper
    mapper
     

  • Constructor Summary

    Constructors
    Constructor
    Description
    JsonDeserializationSchema(Class<T> clazz)
     
    JsonDeserializationSchema(Class<T> clazz, org.apache.flink.util.function.SerializableSupplier<org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.ObjectMapper> mapperFactory)
     
    JsonDeserializationSchema(org.apache.flink.api.common.typeinfo.TypeInformation<T> typeInformation)
     
    JsonDeserializationSchema(org.apache.flink.api.common.typeinfo.TypeInformation<T> typeInformation, org.apache.flink.util.function.SerializableSupplier<org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.ObjectMapper> mapperFactory)
     

  • Method Summary

    Modifier and Type
    Method
    Description
    T
    deserialize(byte[] message)
     
    void
    open(org.apache.flink.api.common.serialization.DeserializationSchema.InitializationContext context)
     

    Methods inherited from class org.apache.flink.api.common.serialization.AbstractDeserializationSchema

    getProducedType, isEndOfStream

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    Methods inherited from interface org.apache.flink.api.common.serialization.DeserializationSchema

    deserialize

  • Field Details

    • mapper

      protected transient org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.ObjectMapper mapper

  • Constructor Details

    • JsonDeserializationSchema

      public JsonDeserializationSchema(Class<T> clazz)

    • JsonDeserializationSchema

      public JsonDeserializationSchema(org.apache.flink.api.common.typeinfo.TypeInformation<T> typeInformation)

    • JsonDeserializationSchema

      public JsonDeserializationSchema(Class<T> clazz, org.apache.flink.util.function.SerializableSupplier<org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.ObjectMapper> mapperFactory)

    • JsonDeserializationSchema

      public JsonDeserializationSchema(org.apache.flink.api.common.typeinfo.TypeInformation<T> typeInformation, org.apache.flink.util.function.SerializableSupplier<org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.ObjectMapper> mapperFactory)

  • Method Details

    • open

      public void open(org.apache.flink.api.common.serialization.DeserializationSchema.InitializationContext context)

    • deserialize

      public T deserialize(byte[] message) throws IOException
      Specified by:
      deserialize in interface org.apache.flink.api.common.serialization.DeserializationSchema<T>
      Specified by:
      deserialize in class org.apache.flink.api.common.serialization.AbstractDeserializationSchema<T>
      Throws:
      IOException