DateRangeRules.ExtractFinder (Apache Calcite API)

java.lang.Object
- org.apache.calcite.rex.RexVisitorImpl
- - org.apache.calcite.rel.rules.DateRangeRules.ExtractFinder

All Implemented Interfaces:

java.lang.AutoCloseable, RexVisitor

Enclosing class:

DateRangeRules
```
private static class DateRangeRules.ExtractFinder
extends RexVisitorImpl
implements java.lang.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	Description
`private java.util.Set<SqlKind>`	`opKinds`
`private static java.lang.ThreadLocal<DateRangeRules.ExtractFinder>`	`THREAD_INSTANCES`
`private java.util.Set<org.apache.calcite.avatica.util.TimeUnitRange>`	`timeUnits`

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

Constructor Summary

Constructors
Modifier Constructor Description

private ExtractFinder()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type Method Description

void close()

java.lang.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 java.util.Set<org.apache.calcite.avatica.util.TimeUnitRange> timeUnits

opKinds

private final java.util.Set<SqlKind> opKinds

THREAD_INSTANCES

private static final java.lang.ThreadLocal<DateRangeRules.ExtractFinder> THREAD_INSTANCES

Constructor Detail
- ExtractFinder
```
private ExtractFinder()
```

Method Detail
- visitCall
```
public java.lang.Object visitCall(RexCall call)
```
  Specified by:
  
  visitCall in interface RexVisitor
  
  Overrides:
  
  visitCall in class RexVisitorImpl
- close
```
public void close()
```
  Specified by:
  
  close in interface java.lang.AutoCloseable