Examples of com.sap.hadoop.windowing.functions2.TableFunctionEvaluator

Package com.sap.hadoop.windowing.functions2

Examples of com.sap.hadoop.windowing.functions2.TableFunctionEvaluator

com.sap.hadoop.windowing.functions2.table.npath.SymbolFunction.SymbolFunctionResult
Based on Hive {@link GenericUDAFEvaluator}. Break up the responsibility of the old AsbtractTableFunction class into a Resolver and Evaluator.
The Evaluator also holds onto the {@link TableFunctionDef}. This provides information about the arguments to the function, the shape of the Input partition and the Partitioning details. The Evaluator is responsible for providing the 2 execute methods:
1. execute: which is invoked after the input is partitioned; the contract is, it is given an input Partition and must return an output Partition. The shape of the output Partition is obtained from the getOutputOI call.
2. transformRawInput: In the case where this function indicates that it will transform the raw input before it is fed through the partitioning mechanics, this function is called. Again the contract is t is given an input Partition and must return an Partition. The shape of the output Partition is obtained from getRawInputOI() call.

        throw new WindowingException(sprintf("Unknown Symbol %s", symbol));
      }
      
      ExprNodeEvaluator symbolExprEval = (ExprNodeEvaluator) symbolDetails[0];
      ObjectInspector symbolExprOI = (ObjectInspector) symbolDetails[1];
      SymbolFunction sFn = new Symbol(symbolExprEval, symbolExprOI);
      
      if ( isStar )
      {
        sFn = new Star(sFn);
      }

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  {
    while (pItr.hasNext())
    {
      Object iRow = pItr.next();
      
      SymbolFunctionResult syFnRes = SymbolFunction.match(syFn, iRow, pItr);
      if (syFnRes.matches )
      {
        int sz = syFnRes.nextRow - (pItr.getIndex() - 1);
        Object selectListInput = NPathUtils.getSelectListInput(iRow, tDef.getInput().getOI(), pItr, sz);
        ArrayList<Object> oRow = new ArrayList<Object>();

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com.sap.hadoop.ds.SameList

com.sap.hadoop.windowing.functions2.annotation.TableFuncDef

com.sap.hadoop.windowing.functions2.annotation.WindowFuncDef

com.sap.hadoop.windowing.functions2.FunctionRegistry$TableFunctionInfo

com.sap.hadoop.windowing.functions2.FunctionRegistry$WindowFunctionInfo

com.sap.hadoop.windowing.functions2.FunctionRegistry.WindowFunctionInfo

com.sap.hadoop.windowing.functions2.table.npath.NPath

com.sap.hadoop.windowing.functions2.table.npath.SymbolFunction.Chain

com.sap.hadoop.windowing.functions2.table.npath.SymbolFunction.Plus

com.sap.hadoop.windowing.functions2.table.npath.SymbolFunction.Star

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