flink-scala-api
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flink-scala-api/org.apache.flink.api.serializer/CaseClassSerializer

CaseClassSerializer

org.apache.flink.api.serializer.CaseClassSerializer
@Internal
abstract class CaseClassSerializer[T <: Product](clazz: Class[T], scalaFieldSerializers: Array[TypeSerializer[_]]) extends TupleSerializerBase[T] with Cloneable

Serializer for Case Classes. Creation and access is different from our Java Tuples so we have to treat them differently. Copied from Flink 1.14.

Attributes

Graph
Supertypes
trait Cloneable
class TupleSerializerBase[T]
class TypeSerializer[T]
trait Serializable
class Object
trait Matchable
class Any
Known subtypes

Members list

Concise view

Value members

Concrete methods

override protected def clone(): Object

Create a copy of the receiver object.

Create a copy of the receiver object.

The default implementation of the clone method is platform dependent.

Attributes

Returns:

a copy of the receiver object.

Note:

not specified by SLS as a member of AnyRef

Definition Classes
Object
def copy(from: T, reuse: T): T
def copy(from: T): T
override def createOrReuseInstance(fields: Array[Object], reuse: T): T

Attributes

Definition Classes
TupleSerializerBase
def deserialize(reuse: T, source: DataInputView): T
def deserialize(source: DataInputView): T
override def duplicate: CaseClassSerializer[T]

Attributes

Definition Classes
TypeSerializer
def initArray(): Unit
def serialize(value: T, target: DataOutputView): Unit

Inherited methods

def copy(x$0: DataInputView, x$1: DataOutputView): Unit

Attributes

Inherited from:
TupleSerializerBase
def createInstance(x$0: Array[<FromJavaObject>]): T

Attributes

Inherited from:
TupleSerializerBase
def equals(x$0: <FromJavaObject>): Boolean

Compares the receiver object (this) with the argument object (that) for equivalence.

Compares the receiver object (this) with the argument object (that) for equivalence.

Any implementation of this method should be an equivalence relation:

  • It is reflexive: for any instance x of type Any, x.equals(x) should return true.
  • It is symmetric: for any instances x and y of type Any, x.equals(y) should return true if and only if y.equals(x) returns true.
  • It is transitive: for any instances x, y, and z of type Any if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.

If you override this method, you should verify that your implementation remains an equivalence relation. Additionally, when overriding this method it is usually necessary to override hashCode to ensure that objects which are "equal" (o1.equals(o2) returns true) hash to the same scala.Int. (o1.hashCode.equals(o2.hashCode)).

Attributes

that

the object to compare against this object for equality.

Returns:

true if the receiver object is equivalent to the argument; false otherwise.

Inherited from:
TupleSerializerBase
def getArity(): Int

Attributes

Inherited from:
TupleSerializerBase
@VisibleForTesting
def getFieldSerializers(): Array[TypeSerializer[<FromJavaObject>]]

Attributes

Inherited from:
TupleSerializerBase
def getLength(): Int

Attributes

Inherited from:
TupleSerializerBase
def getTupleClass(): Class[T]

Attributes

Inherited from:
TupleSerializerBase
def hashCode(): Int

Calculate a hash code value for the object.

Calculate a hash code value for the object.

The default hashing algorithm is platform dependent.

Note that it is allowed for two objects to have identical hash codes (o1.hashCode.equals(o2.hashCode)) yet not be equal (o1.equals(o2) returns false). A degenerate implementation could always return 0. However, it is required that if two objects are equal (o1.equals(o2) returns true) that they have identical hash codes (o1.hashCode.equals(o2.hashCode)). Therefore, when overriding this method, be sure to verify that the behavior is consistent with the equals method.

Attributes

Returns:

the hash code value for this object.

Inherited from:
TupleSerializerBase
def isImmutableType(): Boolean

Attributes

Inherited from:
TupleSerializerBase
def snapshotConfiguration(): TypeSerializerSnapshot[T]

Attributes

Inherited from:
TypeSerializer

Concrete fields

var fields: Array[AnyRef]
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