Package org.apache.spark.sql.scripting

Class WhileStatementExec

Object

org.apache.spark.sql.scripting.WhileStatementExec

All Implemented Interfaces:

org.apache.spark.internal.Logging, CompoundStatementExec, NonLeafStatementExec

public class WhileStatementExec
extends Object
implements NonLeafStatementExec

Executable node for WhileStatement. param: condition Executable node for the condition. param: body Executable node for the body. param: label Label set to WhileStatement by user or None otherwise. param: session Spark session that SQL script is executed within.

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

Constructor Summary

Constructors

Constructor	Description
WhileStatementExec(SingleStatementExec condition, CompoundBodyExec body, scala.Option<String> label, SparkSession session)

Method Summary

Modifier and Type	Method	Description
scala.collection.Iterator<CompoundStatementExec>	getTreeIterator()	Construct the iterator to traverse the tree rooted at this node in an in-order traversal.
boolean	isInternal()	Whether the statement originates from the SQL script or is created during the interpretation.
void	reset()	Reset execution of the current node.

Methods inherited from class java.lang.Object

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

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

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

evaluateBooleanCondition

Constructor Details

WhileStatementExec

public WhileStatementExec(SingleStatementExec condition,
 CompoundBodyExec body,
 scala.Option<String> label,
 SparkSession session)

Method Details

getTreeIterator

public scala.collection.Iterator<CompoundStatementExec> getTreeIterator()

Description copied from interface: NonLeafStatementExec

Construct the iterator to traverse the tree rooted at this node in an in-order traversal.

Specified by:

getTreeIterator in interface NonLeafStatementExec

Returns:

Tree iterator.

isInternal

public boolean isInternal()

Description copied from interface: CompoundStatementExec

Whether the statement originates from the SQL script or is created during the interpretation. Example: DropVariable statements are automatically created at the end of each compound.

Specified by:

isInternal in interface CompoundStatementExec

Returns:

(undocumented)

reset

public void reset()

Description copied from interface: CompoundStatementExec

Reset execution of the current node.

Specified by:

reset in interface CompoundStatementExec