Examples of org.apache.hadoop.hive.ql.udf.generic.GenericUDAFParameterInfo

Package org.apache.hadoop.hive.ql.udf.generic

Examples of org.apache.hadoop.hive.ql.udf.generic.GenericUDAFParameterInfo

org.apache.hadoop.hive.ql.udf.generic.GenericUDAFParameterInfo
A callback interface used in conjunction with GenericUDAFResolver2 interface that allows for a more extensible and flexible means of discovering the parameter types provided for UDAF invocation. Apart from allowing the function implementation to discover the TypeInfo of any types provided in the invocation, this also allows the implementation to determine if the parameters were qualified using DISTINCT. If no parameters were specified explicitly, it allows the function implementation to test if the invocation used the wildcard syntax such as FUNCTION(*).
Note: The implementation of function does not have to handle the actual DISTINCT or wildcard implementation. This information is provided only to allow the function implementation to accept or reject such invocations. For example - the implementation of COUNT UDAF requires that the DISTINCT qualifier be supplied when more than one parameters are specified in the invocation. The actual filtering of data bound to parameter types for DISTINCT implementation is handled by the framework and not the COUNT UDAF implementation.

      parameters[i] = argumentTypeInfos.get(i);
    }


    GenericUDAFEvaluator udafEvaluator = null;
    if (udafResolver instanceof GenericUDAFResolver2) {
      GenericUDAFParameterInfo paramInfo =
          new SimpleGenericUDAFParameterInfo(
              parameters, isDistinct, isAllColumns);
      udafEvaluator =
          ((GenericUDAFResolver2) udafResolver).getEvaluator(paramInfo);
    } else {

View Full Code Here

    // generics + arrays.
    for (int ii = 0; ii < argumentOIs.size(); ++ii) {
      args[ii] = argumentOIs.get(ii);
    }


    GenericUDAFParameterInfo paramInfo =
        new SimpleGenericUDAFParameterInfo(
            args, isDistinct, isAllColumns);
    if (udafResolver instanceof GenericUDAFResolver2) {
      udafEvaluator =
          ((GenericUDAFResolver2) udafResolver).getEvaluator(paramInfo);
    } else {
      udafEvaluator = udafResolver.getEvaluator(paramInfo.getParameters());
    }
    return udafEvaluator;
  }

View Full Code Here

    // generics + arrays.
    for (int ii = 0; ii < argumentOIs.size(); ++ii) {
      args[ii] = argumentOIs.get(ii);
    }


    GenericUDAFParameterInfo paramInfo =
        new SimpleGenericUDAFParameterInfo(
            args, isDistinct, isAllColumns);
    if (udafResolver instanceof GenericUDAFResolver2) {
      udafEvaluator =
          ((GenericUDAFResolver2) udafResolver).getEvaluator(paramInfo);
    } else {
      udafEvaluator = udafResolver.getEvaluator(paramInfo.getParameters());
    }
    return udafEvaluator;
  }

View Full Code Here

    // generics + arrays.
    for (int ii = 0; ii < argumentOIs.size(); ++ii) {
      args[ii] = argumentOIs.get(ii);
    }


    GenericUDAFParameterInfo paramInfo =
        new SimpleGenericUDAFParameterInfo(
            args, isDistinct, isAllColumns);
    if (udafResolver instanceof GenericUDAFResolver2) {
      udafEvaluator =
          ((GenericUDAFResolver2) udafResolver).getEvaluator(paramInfo);
    } else {
      udafEvaluator = udafResolver.getEvaluator(paramInfo.getParameters());
    }
    return udafEvaluator;
  }

View Full Code Here

      parameters[i] = argumentTypeInfos.get(i);
    }


    GenericUDAFEvaluator udafEvaluator = null;
    if (udafResolver instanceof GenericUDAFResolver2) {
      GenericUDAFParameterInfo paramInfo =
          new SimpleGenericUDAFParameterInfo(
              parameters, isDistinct, isAllColumns);
      udafEvaluator =
          ((GenericUDAFResolver2) udafResolver).getEvaluator(paramInfo);
    } else {

View Full Code Here

    ObjectInspector[] inputOiList = new ObjectInspector[] {
        PrimitiveObjectInspectorFactory.javaStringObjectInspector, 
        PrimitiveObjectInspectorFactory.javaIntObjectInspector
        };
    
    GenericUDAFParameterInfo paramInfo = new SimpleGenericUDAFParameterInfo(inputOiList, false, false);
    GenericUDAFEvaluator udafEvaluator = udaf.getEvaluator(paramInfo);
    
    Mode m = Mode.COMPLETE;
    ObjectInspector outputOi = udafEvaluator.init(m, inputOiList);

View Full Code Here

    ObjectInspector[] inputOiList2 = new ObjectInspector[] {
        PrimitiveObjectInspectorFactory.javaStringObjectInspector, 
        PrimitiveObjectInspectorFactory.javaIntObjectInspector
        };
    
    GenericUDAFParameterInfo paramInfo1 = new SimpleGenericUDAFParameterInfo(inputOiList1, false, false);
    GenericUDAFEvaluator udafEvaluator1 = udaf.getEvaluator(paramInfo1);
    
    GenericUDAFParameterInfo paramInfo2 = new SimpleGenericUDAFParameterInfo(inputOiList2, false, false);
    GenericUDAFEvaluator udafEvaluator2 = udaf.getEvaluator(paramInfo2);
    
    Mode m1 = Mode.PARTIAL1;
    ObjectInspector partialOutputOi1 = udafEvaluator1.init(m1, inputOiList1);
    AggregationBuffer agg1 = udafEvaluator1.getNewAggregationBuffer();

View Full Code Here

    ObjectInspector[] inputOiList = new ObjectInspector[] {
        PrimitiveObjectInspectorFactory.javaStringObjectInspector, 
        PrimitiveObjectInspectorFactory.javaIntObjectInspector
        };
    
    GenericUDAFParameterInfo paramInfo = new SimpleGenericUDAFParameterInfo(inputOiList, false, false);
    GenericUDAFEvaluator udafEvaluator = udaf.getEvaluator(paramInfo);
    
    Mode m = Mode.COMPLETE;
    ObjectInspector finalOutputOi = udafEvaluator.init(m, inputOiList);

View Full Code Here

    ObjectInspector[] inputOiList = new ObjectInspector[] {
        PrimitiveObjectInspectorFactory.javaStringObjectInspector, 
        PrimitiveObjectInspectorFactory.javaIntObjectInspector
        };
    
    GenericUDAFParameterInfo paramInfo = new SimpleGenericUDAFParameterInfo(inputOiList, false, false);
    GenericUDAFEvaluator udafEvaluator = udaf.getEvaluator(paramInfo);
    
    Mode m = Mode.COMPLETE;
    ObjectInspector finalOutputOi = udafEvaluator.init(m, inputOiList);

View Full Code Here

TOP

Related Classes of org.apache.hadoop.hive.ql.udf.generic.GenericUDAFParameterInfo

brickhouse.udf.hll.HyperLogLogUDAFTest

org.apache.hadoop.hive.ql.exec.FunctionRegistry

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.