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  • 来自专栏函数式编程语言及工具

    SDP(6):分布式数据库运算环境- Cassandra-Engine

    statements = ctx.statements :+ _statement, parameters = ctx.parameters ++ Seq(_parameters)) } object CQLEngine akka.actor.ActorSystem import akka.stream.ActorMaterializer import com.datastax.driver.core._ import CQLEngine

    1.9K40发布于 2018-03-16
  • 来自专栏函数式编程语言及工具

    PICE(3):CassandraStreaming - gRPC-CQL Service

    ** query parameters: ${params} ****") val ctx = CQLQueryContext(q.statement,params) CQLEngine.cassandraStream s"appendCommand> appended: statements: ${nc.statements}, parameters: ${nc.parameters}") nc } } object CQLEngine scala.concurrent.ExecutionContextExecutor import sdp.grpc.services._ import sdp.cql.engine._ import CQLEngine ** query parameters: ${params} ****") val ctx = CQLQueryContext(q.statement,params) CQLEngine.cassandraStream

    1.4K00发布于 2018-07-31
  • 来自专栏函数式编程语言及工具

    SDP(12): MongoDB-Engine - Streaming

    ._ import CQLEngine._ import org.mongodb.scala.model.Filters._ //data row converter val cqlToDataRow statements = ctx.statements :+ _statement, parameters = ctx.parameters ++ Seq(_parameters)) } object CQLEngine docToRow).to(sink).run() import com.datastax.driver.core._ import cassandraengine._ import CQLEngine

    1.6K100发布于 2018-04-02
  • 来自专栏函数式编程语言及工具

    SDP(7):Cassandra- Cassandra-Engine:Streaming

    statements = ctx.statements :+ _statement, parameters = ctx.parameters ++ Seq(_parameters)) } object CQLEngine val env = Option(envValue) } StreamDemo.scala import com.datastax.driver.core._ import akka._ import CQLEngine

    3.7K60发布于 2018-03-16
  • 来自专栏函数式编程语言及工具

    Akka-CQRS(8)- CQRS Reader Actor 应用实例

    ._ import CQLEngine._ import CQLHelpers._ import monix.execution.Scheduler.Implicits.global import scala.util _ import akka.actor.ActorSystem import akka.stream.ActorMaterializer import sdp.cql.engine._ import CQLEngine proto.consistency, batch = if(proto.batch == None) false else proto.batch.get ) } object CQLEngine

    1.8K60发布于 2019-06-24
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