Package org.apache.flink.table.planner.plan.utils

Class PythonUtil

java.lang.Object
org.apache.flink.table.planner.plan.utils.PythonUtil
public class PythonUtil extends Object
Utility for Python.

  • Constructor Summary

    Constructors
    Constructor
    Description
    PythonUtil()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    static boolean
    containsNonPythonCall(org.apache.calcite.rex.RexNode node)
    Checks whether it contains non-Python function call in the specified node.
    static boolean
    containsPythonCall(org.apache.calcite.rex.RexNode node)
     
    static boolean
    containsPythonCall(org.apache.calcite.rex.RexNode node, org.apache.flink.table.functions.python.PythonFunctionKind pythonFunctionKind)
    Checks whether it contains the specified kind of Python function call in the specified node.
    static boolean
    isBuiltInAggregate(org.apache.calcite.rel.core.AggregateCall call)
     
    static boolean
    isFlattenCalc(FlinkLogicalCalc calc)
     
    static boolean
    isNonPythonCall(org.apache.calcite.rex.RexNode node)
    Checks whether the specified node is a non-Python function call.
    static boolean
    isPythonAggregate(org.apache.calcite.rel.core.AggregateCall call)
     
    static boolean
    isPythonAggregate(org.apache.calcite.rel.core.AggregateCall call, org.apache.flink.table.functions.python.PythonFunctionKind pythonFunctionKind)
    Checks whether the specified aggregate is the specified kind of Python function Aggregate.
    static boolean
    isPythonCall(org.apache.calcite.rex.RexNode node)
     
    static boolean
    isPythonCall(org.apache.calcite.rex.RexNode node, org.apache.flink.table.functions.python.PythonFunctionKind pythonFunctionKind)
    Checks whether the specified node is the specified kind of Python function call.
    static boolean
    takesRowAsInput(org.apache.calcite.rex.RexCall call)
     

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • PythonUtil

      public PythonUtil()

  • Method Details

    • containsPythonCall

      public static boolean containsPythonCall(org.apache.calcite.rex.RexNode node, org.apache.flink.table.functions.python.PythonFunctionKind pythonFunctionKind)
      Checks whether it contains the specified kind of Python function call in the specified node. If the parameter pythonFunctionKind is null, it will return true for any kind of Python function.
      Parameters:
      node - the RexNode to check
      pythonFunctionKind - the kind of the python function
      Returns:
      true if it contains the Python function call in the specified node.

    • containsPythonCall

      public static boolean containsPythonCall(org.apache.calcite.rex.RexNode node)

    • containsNonPythonCall

      public static boolean containsNonPythonCall(org.apache.calcite.rex.RexNode node)
      Checks whether it contains non-Python function call in the specified node.
      Parameters:
      node - the RexNode to check
      Returns:
      true if it contains the non-Python function call in the specified node.

    • isPythonCall

      public static boolean isPythonCall(org.apache.calcite.rex.RexNode node, org.apache.flink.table.functions.python.PythonFunctionKind pythonFunctionKind)
      Checks whether the specified node is the specified kind of Python function call. If the parameter pythonFunctionKind is null, it will return true for any kind of Python function.
      Parameters:
      node - the RexNode to check
      pythonFunctionKind - the kind of the python function
      Returns:
      true if the specified node is a Python function call.

    • isPythonCall

      public static boolean isPythonCall(org.apache.calcite.rex.RexNode node)

    • isNonPythonCall

      public static boolean isNonPythonCall(org.apache.calcite.rex.RexNode node)
      Checks whether the specified node is a non-Python function call.
      Parameters:
      node - the RexNode to check
      Returns:
      true if the specified node is a non-Python function call.

    • isPythonAggregate

      public static boolean isPythonAggregate(org.apache.calcite.rel.core.AggregateCall call)

    • isPythonAggregate

      public static boolean isPythonAggregate(org.apache.calcite.rel.core.AggregateCall call, org.apache.flink.table.functions.python.PythonFunctionKind pythonFunctionKind)
      Checks whether the specified aggregate is the specified kind of Python function Aggregate.
      Parameters:
      call - the AggregateCall to check
      pythonFunctionKind - the kind of the python function
      Returns:
      true if the specified call is a Python function Aggregate.

    • isBuiltInAggregate

      public static boolean isBuiltInAggregate(org.apache.calcite.rel.core.AggregateCall call)

    • takesRowAsInput

      public static boolean takesRowAsInput(org.apache.calcite.rex.RexCall call)

    • isFlattenCalc

      public static boolean isFlattenCalc(FlinkLogicalCalc calc)