Package org.apache.spark.sql.scripting
Class IfElseStatementExec
Object
org.apache.spark.sql.scripting.IfElseStatementExec
- All Implemented Interfaces:
org.apache.spark.internal.Logging
,CompoundStatementExec
,NonLeafStatementExec
Executable node for IfElseStatement.
param: conditions Collection of executable conditions. First condition corresponds to IF clause,
while others (if any) correspond to following ELSE IF clauses.
param: conditionalBodies Collection of executable bodies that have a corresponding condition,
in IF or ELSE IF branches.
param: elseBody Body that is executed if none of the conditions are met,
i.e. ELSE branch.
param: session Spark session that SQL script is executed within.
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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
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Constructor Summary
ConstructorDescriptionIfElseStatementExec
(scala.collection.immutable.Seq<SingleStatementExec> conditions, scala.collection.immutable.Seq<CompoundBodyExec> conditionalBodies, scala.Option<CompoundBodyExec> elseBody, SparkSession session) -
Method Summary
Modifier and TypeMethodDescriptionscala.collection.Iterator<CompoundStatementExec>
Construct the iterator to traverse the tree rooted at this node in an in-order traversal.boolean
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
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Constructor Details
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IfElseStatementExec
public IfElseStatementExec(scala.collection.immutable.Seq<SingleStatementExec> conditions, scala.collection.immutable.Seq<CompoundBodyExec> conditionalBodies, scala.Option<CompoundBodyExec> elseBody, SparkSession session)
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Method Details
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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 interfaceNonLeafStatementExec
- Returns:
- Tree iterator.
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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 interfaceCompoundStatementExec
- Returns:
- (undocumented)
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reset
public void reset()Description copied from interface:CompoundStatementExec
Reset execution of the current node.- Specified by:
reset
in interfaceCompoundStatementExec
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