T - The type of element in the list.@Internal public final class LinkedListSerializer<T> extends TypeSerializer<LinkedList<T>>
LinkedList. The serializer relies on an element serializer for the
serialization of the list's elements.| Modifier and Type | Class and Description |
|---|---|
static class |
LinkedListSerializer.LinkedListSerializerSnapshot<T>
Snapshot class for the
LinkedListSerializer. |
| Constructor and Description |
|---|
LinkedListSerializer(TypeSerializer<T> elementSerializer)
Creates a list serializer that uses the given serializer to serialize the list's elements.
|
LinkedListSerializer(TypeSerializer<T> elementSerializer,
boolean hasNullMask) |
| Modifier and Type | Method and Description |
|---|---|
void |
copy(DataInputView source,
DataOutputView target)
Copies exactly one record from the source input view to the target output view.
|
LinkedList<T> |
copy(LinkedList<T> from)
Creates a deep copy of the given element in a new element.
|
LinkedList<T> |
copy(LinkedList<T> from,
LinkedList<T> reuse)
Creates a copy from the given element.
|
LinkedList<T> |
createInstance()
Creates a new instance of the data type.
|
LinkedList<T> |
deserialize(DataInputView source)
De-serializes a record from the given source input view.
|
LinkedList<T> |
deserialize(LinkedList<T> reuse,
DataInputView source)
De-serializes a record from the given source input view into the given reuse record instance
if mutable.
|
TypeSerializer<LinkedList<T>> |
duplicate()
Creates a deep copy of this serializer if it is necessary, i.e.
|
boolean |
equals(Object obj) |
TypeSerializer<T> |
getElementSerializer()
Gets the serializer for the elements of the list.
|
int |
getLength()
Gets the length of the data type, if it is a fix length data type.
|
int |
hashCode() |
boolean |
isImmutableType()
Gets whether the type is an immutable type.
|
void |
serialize(LinkedList<T> list,
DataOutputView target)
Serializes the given record to the given target output view.
|
TypeSerializerSnapshot<LinkedList<T>> |
snapshotConfiguration()
Snapshots the configuration of this TypeSerializer.
|
public LinkedListSerializer(TypeSerializer<T> elementSerializer)
elementSerializer - The serializer for the elements of the listpublic LinkedListSerializer(TypeSerializer<T> elementSerializer, boolean hasNullMask)
public TypeSerializer<T> getElementSerializer()
public boolean isImmutableType()
TypeSerializerisImmutableType in class TypeSerializer<LinkedList<T>>public TypeSerializer<LinkedList<T>> duplicate()
TypeSerializerWe need this because Serializers might be used in several threads. Stateless serializers are inherently thread-safe while stateful serializers might not be thread-safe.
duplicate in class TypeSerializer<LinkedList<T>>public LinkedList<T> createInstance()
TypeSerializercreateInstance in class TypeSerializer<LinkedList<T>>public LinkedList<T> copy(LinkedList<T> from)
TypeSerializercopy in class TypeSerializer<LinkedList<T>>from - The element reuse be copied.public LinkedList<T> copy(LinkedList<T> from, LinkedList<T> reuse)
TypeSerializercopy in class TypeSerializer<LinkedList<T>>from - The element to be copied.reuse - The element to be reused. May or may not be used.public int getLength()
TypeSerializergetLength in class TypeSerializer<LinkedList<T>>-1 for variable length data types.public void serialize(LinkedList<T> list, DataOutputView target) throws IOException
TypeSerializerserialize in class TypeSerializer<LinkedList<T>>list - The record to serialize.target - The output view to write the serialized data to.IOException - Thrown, if the serialization encountered an I/O related error. Typically
raised by the output view, which may have an underlying I/O channel to which it
delegates.public LinkedList<T> deserialize(DataInputView source) throws IOException
TypeSerializerdeserialize in class TypeSerializer<LinkedList<T>>source - The input view from which to read the data.IOException - Thrown, if the de-serialization encountered an I/O related error.
Typically raised by the input view, which may have an underlying I/O channel from which
it reads.public LinkedList<T> deserialize(LinkedList<T> reuse, DataInputView source) throws IOException
TypeSerializerdeserialize in class TypeSerializer<LinkedList<T>>reuse - The record instance into which to de-serialize the data.source - The input view from which to read the data.IOException - Thrown, if the de-serialization encountered an I/O related error.
Typically raised by the input view, which may have an underlying I/O channel from which
it reads.public void copy(DataInputView source, DataOutputView target) throws IOException
TypeSerializertarget.write(source, 8);.copy in class TypeSerializer<LinkedList<T>>source - The input view from which to read the record.target - The target output view to which to write the record.IOException - Thrown if any of the two views raises an exception.public boolean equals(Object obj)
equals in class TypeSerializer<LinkedList<T>>public int hashCode()
hashCode in class TypeSerializer<LinkedList<T>>public TypeSerializerSnapshot<LinkedList<T>> snapshotConfiguration()
TypeSerializerThe snapshot of the TypeSerializer is supposed to contain all information that affects the serialization format of the serializer. The snapshot serves two purposes: First, to reproduce the serializer when the checkpoint/savepoint is restored, and second, to check whether the serialization format is compatible with the serializer used in the restored program.
IMPORTANT: TypeSerializerSnapshots changed after Flink 1.6. Serializers implemented against Flink versions up to 1.6 should still work, but adjust to new model to enable state evolution and be future-proof. See the class-level comments, section "Upgrading TypeSerializers to the new TypeSerializerSnapshot model" for details.
snapshotConfiguration in class TypeSerializer<LinkedList<T>>null).TypeSerializerSnapshot.resolveSchemaCompatibility(TypeSerializer)Copyright © 2014–2024 The Apache Software Foundation. All rights reserved.