org.apache.flink.util

类 SerializedValue<T>

java.lang.Object

org.apache.flink.util.SerializedValue<T>

类型参数:

T - The type of the value held.

所有已实现的接口:

Serializable

直接已知子类:

CompressedSerializedValue

@Internal
public class SerializedValue<T>
extends Object
implements Serializable

This class is used to transfer (via serialization) objects whose classes are not available in the system class loader. When those objects are deserialized without access to their special class loader, the deserialization fails with a ClassNotFoundException.

To work around that issue, the SerializedValue serialized data immediately into a byte array. When send through RPC or another service that uses serialization, only the byte array is transferred. The object is deserialized later (upon access) and requires the accessor to provide the corresponding class loader.

另请参阅:

序列化表格

构造器概要

构造器

限定符	构造器和说明
protected	SerializedValue(byte[] serializedData)
	SerializedValue(T value) Constructs a serialized value.

方法概要

限定符和类型	方法和说明
T	deserializeValue(ClassLoader loader)
boolean	equals(Object obj)
static <T> SerializedValue<T>	fromBytes(byte[] serializedData) Constructs serialized value from serialized data.
byte[]	getByteArray() Returns byte array for serialized data.
int	hashCode()
String	toString()

从类继承的方法 java.lang.Object

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

构造器详细资料

SerializedValue

protected SerializedValue(byte[] serializedData)

SerializedValue

public SerializedValue(T value)
                throws IOException

Constructs a serialized value.

参数:

value - value to serialize

抛出:

NullPointerException - if value is null

IOException - exception during serialization

方法详细资料

deserializeValue

public T deserializeValue(ClassLoader loader)
                   throws IOException,
                          ClassNotFoundException

抛出:

IOException

ClassNotFoundException

getByteArray

public byte[] getByteArray()

Returns byte array for serialized data.

返回:

Serialized data.

fromBytes

public static <T> SerializedValue<T> fromBytes(byte[] serializedData)

Constructs serialized value from serialized data.

类型参数:

T - type

参数:

serializedData - serialized data

返回:

serialized value

抛出:

NullPointerException - if serialized data is null

IllegalArgumentException - if serialized data is empty

hashCode

public int hashCode()

覆盖:

hashCode 在类中 Object

equals

public boolean equals(Object obj)

覆盖:

equals 在类中 Object

toString

public String toString()

覆盖:

toString 在类中 Object