Package org.apache.spark.sql.scripting

Interface NonLeafStatementExec

All Superinterfaces:
CompoundStatementExec, org.apache.spark.internal.Logging
All Known Implementing Classes:
CaseStatementExec, CompoundBodyExec, CompoundNestedStatementIteratorExec, IfElseStatementExec, RepeatStatementExec, WhileStatementExec
public interface NonLeafStatementExec extends CompoundStatementExec
Non-leaf node in the execution tree. It is an iterator over executable child nodes.

  • Nested Class Summary

    Nested classes/interfaces inherited from interface org.apache.spark.internal.Logging

    org.apache.spark.internal.Logging.LogStringContext, org.apache.spark.internal.Logging.SparkShellLoggingFilter

  • Method Summary

    Modifier and Type
    Method
    Description
    boolean
    evaluateBooleanCondition(SparkSession session, LeafStatementExec statement)
    Evaluate the boolean condition represented by the statement.
    scala.collection.Iterator<CompoundStatementExec>
    getTreeIterator()
    Construct the iterator to traverse the tree rooted at this node in an in-order traversal.

    Methods inherited from interface org.apache.spark.sql.scripting.CompoundStatementExec

    isInternal, reset

    Methods inherited from interface org.apache.spark.internal.Logging

    initializeForcefully, initializeLogIfNecessary, initializeLogIfNecessary, initializeLogIfNecessary$default$2, isTraceEnabled, log, logDebug, logDebug, logDebug, logDebug, logError, logError, logError, logError, logInfo, logInfo, logInfo, logInfo, logName, LogStringContext, logTrace, logTrace, logTrace, logTrace, logWarning, logWarning, logWarning, logWarning, org$apache$spark$internal$Logging$$log_, org$apache$spark$internal$Logging$$log__$eq, withLogContext

  • Method Details

    • evaluateBooleanCondition

      boolean evaluateBooleanCondition(SparkSession session, LeafStatementExec statement)
      Evaluate the boolean condition represented by the statement.
      Parameters:
      session - SparkSession that SQL script is executed within.
      statement - Statement representing the boolean condition to evaluate.
      Returns:
      The value (true or false) of condition evaluation; or throw the error during the evaluation (eg: returning multiple rows of data or non-boolean statement).

    • getTreeIterator

      scala.collection.Iterator<CompoundStatementExec> getTreeIterator()
      Construct the iterator to traverse the tree rooted at this node in an in-order traversal.
      Returns:
      Tree iterator.