## Uses of Interface
io.vertx.ext.web.handler.ProtocolUpgradeHandler

- Packages that use ProtocolUpgradeHandler
  Package | Description
  --- | ---
  io.vertx.ext.web.handler.graphql |
  io.vertx.ext.web.handler.graphql.ws |
  io.vertx.reactivex.ext.web.handler |
  io.vertx.rxjava.ext.web.handler |
  io.vertx.rxjava3.ext.web.handler |

- - ### Uses of ProtocolUpgradeHandler in io.vertx.ext.web.handler.graphql

    Subinterfaces of ProtocolUpgradeHandler in io.vertx.ext.web.handler.graphql
    Modifier and Type | Interface and Description
    --- | ---
    `interface` | `ApolloWSHandler` Deprecated. the subscriptions-transport-ws protocol is no longer maintained

  - ### Uses of ProtocolUpgradeHandler in io.vertx.ext.web.handler.graphql.ws

    Subinterfaces of ProtocolUpgradeHandler in io.vertx.ext.web.handler.graphql.ws
    Modifier and Type | Interface and Description
    --- | ---
    `interface` | `GraphQLWSHandler` A handler for the GraphQL over WebSocket Protocol.

  - ### Uses of ProtocolUpgradeHandler in io.vertx.reactivex.ext.web.handler

    Methods in io.vertx.reactivex.ext.web.handler that return ProtocolUpgradeHandler
    Modifier and Type | Method and Description
    --- | ---
    `ProtocolUpgradeHandler` | ProtocolUpgradeHandler.`getDelegate()`

    Methods in io.vertx.reactivex.ext.web.handler with parameters of type ProtocolUpgradeHandler
    Modifier and Type | Method and Description
    --- | ---
    `static ProtocolUpgradeHandler` | ProtocolUpgradeHandler.`newInstance(ProtocolUpgradeHandler arg)`

  - ### Uses of ProtocolUpgradeHandler in io.vertx.rxjava.ext.web.handler

    Methods in io.vertx.rxjava.ext.web.handler that return ProtocolUpgradeHandler
    Modifier and Type | Method and Description
    --- | ---
    `ProtocolUpgradeHandler` | ProtocolUpgradeHandler.`getDelegate()`

    Methods in io.vertx.rxjava.ext.web.handler with parameters of type ProtocolUpgradeHandler
    Modifier and Type | Method and Description
    --- | ---
    `static ProtocolUpgradeHandler` | ProtocolUpgradeHandler.`newInstance(ProtocolUpgradeHandler arg)`

  - ### Uses of ProtocolUpgradeHandler in io.vertx.rxjava3.ext.web.handler

    Methods in io.vertx.rxjava3.ext.web.handler that return ProtocolUpgradeHandler
    Modifier and Type | Method and Description
    --- | ---
    `ProtocolUpgradeHandler` | ProtocolUpgradeHandler.`getDelegate()`

    Methods in io.vertx.rxjava3.ext.web.handler with parameters of type ProtocolUpgradeHandler
    Modifier and Type | Method and Description
    --- | ---
    `static ProtocolUpgradeHandler` | ProtocolUpgradeHandler.`newInstance(ProtocolUpgradeHandler arg)`

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