Package org.apache.flink.api.common.functions

Examples of org.apache.flink.api.common.functions.RichFunction

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public class FunctionUtils {

  public static void openFunction (Function function, Configuration parameters) throws Exception{
    if (function instanceof RichFunction) {
      RichFunction richFunction = (RichFunction) function;
      richFunction.open (parameters);
    }
  }
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    }
  }

  public static void closeFunction (Function function) throws Exception{
    if (function instanceof RichFunction) {
      RichFunction richFunction = (RichFunction) function;
      richFunction.close ();
    }
  }
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    }
  }

  public static void setFunctionRuntimeContext (Function function, RuntimeContext context){
    if (function instanceof RichFunction) {
      RichFunction richFunction = (RichFunction) function;
      richFunction.setRuntimeContext(context);
    }
  }
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    }
  }

  public static RuntimeContext getFunctionRuntimeContext (Function function, RuntimeContext defaultContext){
    if (function instanceof RichFunction) {
      RichFunction richFunction = (RichFunction) function;
      return richFunction.getRuntimeContext();
    }
    else {
      return defaultContext;
    }
  }
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    try {
      AtomicInteger methodCounter = new AtomicInteger();
     
      ReduceOperator reduceOp = ReduceOperator.builder(new TestReduceFunction(methodCounter)).build();
     
      RichFunction reducer = (RichFunction) reduceOp.getUserCodeWrapper().getUserCodeObject();
     
      // test the method invocations
      reducer.close();
      reducer.open(new Configuration());
      assertEquals(2, methodCounter.get());
     
      // prepare the reduce / combine tests
      final List<Record> target = new ArrayList<Record>();
      Collector<Record> collector = new Collector<Record>() {
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    try {
      AtomicInteger methodCounter = new AtomicInteger();
     
      CoGroupOperator coGroupOp = CoGroupOperator.builder(new TestCoGroupFunction(methodCounter), LongValue.class, 1, 2).build();
     
      RichFunction cogrouper = (RichFunction) coGroupOp.getUserCodeWrapper().getUserCodeObject();
     
      // test the method invocations
      cogrouper.close();
      cogrouper.open(new Configuration());
      assertEquals(2, methodCounter.get());
     
      // prepare the coGroup
      final List<Record> target = new ArrayList<Record>();
      Collector<Record> collector = new Collector<Record>() {
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Related Classes of org.apache.flink.api.common.functions.RichFunction

  • org.apache.flink.api.common.functions.util.FunctionUtils
  • org.apache.flink.api.java.record.CoGroupWrappingFunctionTest
  • org.apache.flink.api.java.record.ReduceWrappingFunctionTest
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