org.apache.calcite.rel.rules

Class DateRangeRules.ExtractFinder

java.lang.Object

org.apache.calcite.rex.RexVisitorImpl

org.apache.calcite.rel.rules.DateRangeRules.ExtractFinder

All Implemented Interfaces:

AutoCloseable, RexVisitor

Enclosing class:

DateRangeRules

private static class DateRangeRules.ExtractFinder
extends RexVisitorImpl
implements AutoCloseable

Visitor that searches for calls to EXTRACT, FLOOR or CEIL, building a list of distinct time units.

Field Summary

Fields

Modifier and Type	Field and Description
private Set<SqlKind>	opKinds
private static ThreadLocal<DateRangeRules.ExtractFinder>	THREAD_INSTANCES
private Set<org.apache.calcite.avatica.util.TimeUnitRange>	timeUnits

Fields inherited from class org.apache.calcite.rex.RexVisitorImpl

deep

Constructor Summary

Constructors

Modifier	Constructor and Description
private	ExtractFinder()

Method Summary

Modifier and Type	Method and Description
void	close()
Object	visitCall(RexCall call)

Methods inherited from class org.apache.calcite.rex.RexVisitorImpl

visitArrayAnd, visitArrayOr, visitCorrelVariable, visitDynamicParam, visitFieldAccess, visitInputRef, visitLiteral, visitLocalRef, visitOver, visitPatternFieldRef, visitRangeRef, visitSubQuery, visitTableInputRef

Methods inherited from class java.lang.Object

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

Field Detail

timeUnits

private final Set<org.apache.calcite.avatica.util.TimeUnitRange> timeUnits

opKinds

private final Set<SqlKind> opKinds

THREAD_INSTANCES

private static final ThreadLocal<DateRangeRules.ExtractFinder> THREAD_INSTANCES

Constructor Detail

ExtractFinder

private ExtractFinder()

Method Detail

visitCall

public Object visitCall(RexCall call)

Specified by:

visitCall in interface RexVisitor

Overrides:

visitCall in class RexVisitorImpl

close

public void close()

Specified by:

close in interface AutoCloseable