io.asyncer.r2dbc.mysql.internal.util

Class OperatorUtils

java.lang.Object

io.asyncer.r2dbc.mysql.internal.util.OperatorUtils

public final class OperatorUtils
extends Object

Operator utility.

This is a slightly altered version of R2DBC SQL Server's implementation: https://github.com/r2dbc/r2dbc-mssql

Method Summary

Modifier and Type	Method and Description
static Flux<io.netty.buffer.ByteBuf>	cumulateEnvelope(Flux<? extends io.netty.buffer.ByteBuf> source, io.netty.buffer.ByteBufAllocator allocator, int envelopeIdStart)
static <T> Flux<T>	discardOnCancel(Flux<? extends T> source) Replay signals from the source until cancellation.

Methods inherited from class java.lang.Object

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

Method Detail

discardOnCancel

public static <T> Flux<T> discardOnCancel(Flux<? extends T> source)

Replay signals from the source until cancellation. Drains the source for data signals if the subscriber cancels the subscription.

Draining data is required to complete a particular request/response window and clear the protocol state as client code expects to start a request/response conversation without leaving previous frames on the stack.

Type Parameters:

T - The type of values in both source and output sequences.

Parameters:

source - the source to decorate.

Returns:

decorated Flux.

Throws:

IllegalArgumentException - if source is null.

cumulateEnvelope

public static Flux<io.netty.buffer.ByteBuf> cumulateEnvelope(Flux<? extends io.netty.buffer.ByteBuf> source,
                                                             io.netty.buffer.ByteBufAllocator allocator,
                                                             int envelopeIdStart)