Package org.apache.flink.runtime.state.ttl

Class TtlAwareSerializer<T>

java.lang.Object

org.apache.flink.api.common.typeutils.TypeSerializer<T>

org.apache.flink.runtime.state.ttl.TtlAwareSerializer<T>

All Implemented Interfaces:

Serializable

public class TtlAwareSerializer<T>
extends org.apache.flink.api.common.typeutils.TypeSerializer<T>

This class wraps a TypeSerializer with ttl awareness. It will return true when the wrapped TypeSerializer is instance of TtlStateFactory.TtlSerializer. Also, it wraps the value migration process between TtlSerializer and non-ttl typeSerializer.

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
TtlAwareSerializer(org.apache.flink.api.common.typeutils.TypeSerializer<T> typeSerializer)

Method Summary

Modifier and Type	Method	Description
void	copy(org.apache.flink.core.memory.DataInputView source, org.apache.flink.core.memory.DataOutputView target)
T	copy(T from)
T	copy(T from, T reuse)
T	createInstance()
T	deserialize(org.apache.flink.core.memory.DataInputView source)
T	deserialize(T reuse, org.apache.flink.core.memory.DataInputView source)
org.apache.flink.api.common.typeutils.TypeSerializer<T>	duplicate()
boolean	equals(Object o)
int	getLength()
org.apache.flink.api.common.typeutils.TypeSerializer<T>	getOriginalTypeSerializer()
int	hashCode()
boolean	isImmutableType()
static boolean	isSerializerTtlEnabled(org.apache.flink.api.common.typeutils.TypeSerializer<?> typeSerializer)
boolean	isTtlEnabled()
void	migrateValueFromPriorSerializer(TtlAwareSerializer<T> priorTtlAwareSerializer, org.apache.flink.util.function.SupplierWithException<T,IOException> inputSupplier, org.apache.flink.core.memory.DataOutputView target, TtlTimeProvider ttlTimeProvider)
void	serialize(T record, org.apache.flink.core.memory.DataOutputView target)
org.apache.flink.api.common.typeutils.TypeSerializerSnapshot<T>	snapshotConfiguration()
static org.apache.flink.api.common.typeutils.TypeSerializer<?>	wrapTtlAwareSerializer(org.apache.flink.api.common.typeutils.TypeSerializer<?> typeSerializer)

Methods inherited from class java.lang.Object

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

Constructor Details

TtlAwareSerializer

public TtlAwareSerializer(org.apache.flink.api.common.typeutils.TypeSerializer<T> typeSerializer)

Method Details

isImmutableType

public boolean isImmutableType()

Specified by:

isImmutableType in class org.apache.flink.api.common.typeutils.TypeSerializer<T>

duplicate

public org.apache.flink.api.common.typeutils.TypeSerializer<T> duplicate()

Specified by:

duplicate in class org.apache.flink.api.common.typeutils.TypeSerializer<T>

createInstance

public T createInstance()

Specified by:

createInstance in class org.apache.flink.api.common.typeutils.TypeSerializer<T>

copy

public T copy(T from)

Specified by:

copy in class org.apache.flink.api.common.typeutils.TypeSerializer<T>

copy

public T copy(T from,
 T reuse)

Specified by:

copy in class org.apache.flink.api.common.typeutils.TypeSerializer<T>

getLength

public int getLength()

Specified by:

getLength in class org.apache.flink.api.common.typeutils.TypeSerializer<T>

serialize

public void serialize(T record,
 org.apache.flink.core.memory.DataOutputView target)
               throws IOException

Specified by:

serialize in class org.apache.flink.api.common.typeutils.TypeSerializer<T>

Throws:

IOException

deserialize

public T deserialize(org.apache.flink.core.memory.DataInputView source)
              throws IOException

Specified by:

deserialize in class org.apache.flink.api.common.typeutils.TypeSerializer<T>

Throws:

IOException

deserialize

public T deserialize(T reuse,
 org.apache.flink.core.memory.DataInputView source)
              throws IOException

Specified by:

deserialize in class org.apache.flink.api.common.typeutils.TypeSerializer<T>

Throws:

IOException

equals

public boolean equals(Object o)

Specified by:

equals in class org.apache.flink.api.common.typeutils.TypeSerializer<T>

hashCode

public int hashCode()

Specified by:

hashCode in class org.apache.flink.api.common.typeutils.TypeSerializer<T>

migrateValueFromPriorSerializer

public void migrateValueFromPriorSerializer(TtlAwareSerializer<T> priorTtlAwareSerializer,
 org.apache.flink.util.function.SupplierWithException<T,IOException> inputSupplier,
 org.apache.flink.core.memory.DataOutputView target,
 TtlTimeProvider ttlTimeProvider)
                                     throws IOException

Throws:

IOException

copy

public void copy(org.apache.flink.core.memory.DataInputView source,
 org.apache.flink.core.memory.DataOutputView target)
          throws IOException

Specified by:

copy in class org.apache.flink.api.common.typeutils.TypeSerializer<T>

Throws:

IOException

isTtlEnabled

public boolean isTtlEnabled()

getOriginalTypeSerializer

public org.apache.flink.api.common.typeutils.TypeSerializer<T> getOriginalTypeSerializer()

snapshotConfiguration

public org.apache.flink.api.common.typeutils.TypeSerializerSnapshot<T> snapshotConfiguration()

Specified by:

snapshotConfiguration in class org.apache.flink.api.common.typeutils.TypeSerializer<T>

isSerializerTtlEnabled

public static boolean isSerializerTtlEnabled(org.apache.flink.api.common.typeutils.TypeSerializer<?> typeSerializer)

wrapTtlAwareSerializer

public static org.apache.flink.api.common.typeutils.TypeSerializer<?> wrapTtlAwareSerializer(org.apache.flink.api.common.typeutils.TypeSerializer<?> typeSerializer)