Package io.pravega.client.tables.impl

Class IteratorStateImpl

java.lang.Object

io.pravega.client.tables.impl.IteratorStateImpl

All Implemented Interfaces:

IteratorState

public class IteratorStateImpl
extends java.lang.Object
implements IteratorState

IteratorState Implementation.

Field Summary

Fields

Modifier and Type	Field	Description
static IteratorStateImpl	EMPTY	No state.

Method Summary

Modifier and Type	Method	Description
static IteratorStateImpl	copyOf(IteratorState source)	Creates a new IteratorStateImpl which is a copy of the given IteratorState.
static IteratorStateImpl	fromBytes(io.netty.buffer.ByteBuf serializedState)	Deserializes the IteratorStateImpl from its serialized form obtained from calling getToken() .
static IteratorStateImpl	fromBytes(java.nio.ByteBuffer serializedState)	Deserializes the IteratorState from its serialized form obtained from calling toBytes() ()} .
io.netty.buffer.ByteBuf	getToken()
boolean	isEmpty()	Gets a value indicating whether this IteratorState instance is empty.
java.nio.ByteBuffer	toBytes()	Serializes this IteratorState to a ByteBuffer.

Methods inherited from class java.lang.Object

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

Field Detail

EMPTY

public static final IteratorStateImpl EMPTY

No state. Providing this value will result in an iterator that starts from the beginning (i.e., not resuming an existing iteration).

Method Detail

toBytes

public java.nio.ByteBuffer toBytes()

Description copied from interface: IteratorState

Serializes this IteratorState to a ByteBuffer. This can later be used to create a new IteratorState using IteratorState.fromBytes(ByteBuffer).

Specified by:

toBytes in interface IteratorState

Returns:

A ByteBuffer.

isEmpty

public boolean isEmpty()

Description copied from interface: IteratorState

Gets a value indicating whether this IteratorState instance is empty.

Specified by:

isEmpty in interface IteratorState

Returns:

True if empty, false otherwise.

fromBytes

public static IteratorStateImpl fromBytes(io.netty.buffer.ByteBuf serializedState)

Deserializes the IteratorStateImpl from its serialized form obtained from calling getToken() .

Parameters:

serializedState - A serialized IteratorStateImpl.

Returns:

The IteratorState object.

fromBytes

public static IteratorStateImpl fromBytes(java.nio.ByteBuffer serializedState)

Deserializes the IteratorState from its serialized form obtained from calling toBytes() ()} .

Parameters:

serializedState - A serialized IteratorStateImpl.

Returns:

The IteratorState object.

copyOf

public static IteratorStateImpl copyOf(IteratorState source)

Creates a new IteratorStateImpl which is a copy of the given IteratorState.

Parameters:

source - The IteratorState to copy.

Returns:

The copy.

getToken

public io.netty.buffer.ByteBuf getToken()