public final class ArrayListSerializer<T> extends TypeSerializer<ArrayList<T>> implements TypeSerializerConfigSnapshot.SelfResolvingTypeSerializer<ArrayList<T>>
| Constructor and Description |
|---|
ArrayListSerializer(TypeSerializer<T> elementSerializer) |
| Modifier and Type | Method and Description |
|---|---|
ArrayList<T> |
copy(ArrayList<T> from)
Creates a deep copy of the given element in a new element.
|
ArrayList<T> |
copy(ArrayList<T> from,
ArrayList<T> reuse)
Creates a copy from the given element.
|
void |
copy(DataInputView source,
DataOutputView target)
Copies exactly one record from the source input view to the target output view.
|
ArrayList<T> |
createInstance()
Creates a new instance of the data type.
|
ArrayList<T> |
deserialize(ArrayList<T> reuse,
DataInputView source)
De-serializes a record from the given source input view into the given reuse record instance
if mutable.
|
ArrayList<T> |
deserialize(DataInputView source)
De-serializes a record from the given source input view.
|
TypeSerializer<ArrayList<T>> |
duplicate()
Creates a deep copy of this serializer if it is necessary, i.e.
|
boolean |
equals(Object obj) |
TypeSerializer<T> |
getElementSerializer() |
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.
|
TypeSerializerSchemaCompatibility<ArrayList<T>> |
resolveSchemaCompatibilityViaRedirectingToNewSnapshotClass(TypeSerializerConfigSnapshot<ArrayList<T>> deprecatedConfigSnapshot)
We need to implement this method as a
TypeSerializerConfigSnapshot.SelfResolvingTypeSerializer because this serializer was
previously returning a shared CollectionSerializerConfigSnapshot as its snapshot. |
void |
serialize(ArrayList<T> list,
DataOutputView target)
Serializes the given record to the given target output view.
|
TypeSerializerSnapshot<ArrayList<T>> |
snapshotConfiguration()
Snapshots the configuration of this TypeSerializer.
|
public ArrayListSerializer(TypeSerializer<T> elementSerializer)
public TypeSerializer<T> getElementSerializer()
public boolean isImmutableType()
TypeSerializerisImmutableType in class TypeSerializer<ArrayList<T>>public TypeSerializer<ArrayList<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<ArrayList<T>>public ArrayList<T> createInstance()
TypeSerializercreateInstance in class TypeSerializer<ArrayList<T>>public ArrayList<T> copy(ArrayList<T> from)
TypeSerializercopy in class TypeSerializer<ArrayList<T>>from - The element reuse be copied.public ArrayList<T> copy(ArrayList<T> from, ArrayList<T> reuse)
TypeSerializercopy in class TypeSerializer<ArrayList<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<ArrayList<T>>-1 for variable length data types.public void serialize(ArrayList<T> list, DataOutputView target) throws IOException
TypeSerializerserialize in class TypeSerializer<ArrayList<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 ArrayList<T> deserialize(DataInputView source) throws IOException
TypeSerializerdeserialize in class TypeSerializer<ArrayList<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 ArrayList<T> deserialize(ArrayList<T> reuse, DataInputView source) throws IOException
TypeSerializerdeserialize in class TypeSerializer<ArrayList<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<ArrayList<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<ArrayList<T>>public int hashCode()
hashCode in class TypeSerializer<ArrayList<T>>public TypeSerializerSnapshot<ArrayList<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<ArrayList<T>>null).TypeSerializerSnapshot.resolveSchemaCompatibility(TypeSerializer)public TypeSerializerSchemaCompatibility<ArrayList<T>> resolveSchemaCompatibilityViaRedirectingToNewSnapshotClass(TypeSerializerConfigSnapshot<ArrayList<T>> deprecatedConfigSnapshot)
TypeSerializerConfigSnapshot.SelfResolvingTypeSerializer because this serializer was
previously returning a shared CollectionSerializerConfigSnapshot as its snapshot.
When the CollectionSerializerConfigSnapshot is restored, it is incapable of
redirecting the compatibility check to ArrayListSerializerSnapshot, so we do it here.
resolveSchemaCompatibilityViaRedirectingToNewSnapshotClass in interface TypeSerializerConfigSnapshot.SelfResolvingTypeSerializer<ArrayList<T>>deprecatedConfigSnapshot - the not yet migrated config snapshot class.deprecatedConfigSnapshot with this serializer.Copyright © 2014–2024 The Apache Software Foundation. All rights reserved.