ReduceDecimalsRule.CastArgAsTypeExpander (Apache Calcite API)

java.lang.Object
- org.apache.calcite.rel.rules.ReduceDecimalsRule.RexExpander
- - org.apache.calcite.rel.rules.ReduceDecimalsRule.CastArgAsTypeExpander

Direct Known Subclasses:

ReduceDecimalsRule.CastArgAsDoubleExpander

Enclosing class:

ReduceDecimalsRule
```
private abstract class ReduceDecimalsRule.CastArgAsTypeExpander
extends ReduceDecimalsRule.RexExpander
```
An expander which casts decimal arguments as another type

Field Summary
- Fields inherited from class org.apache.calcite.rel.rules.ReduceDecimalsRule.RexExpander
  builder, int8, real8

Constructor Summary

Constructors
Modifier Constructor Description

private CastArgAsTypeExpander(RexBuilder builder)

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`RexNode`	`expand(RexCall call)`	Rewrites an expression containing decimals.
`abstract RelDataType`	`getArgType(RexCall call, int ordinal)`

Methods inherited from class org.apache.calcite.rel.rules.ReduceDecimalsRule.RexExpander
accessValue, canExpand, decodeValue, encodeValue, encodeValue, ensureScale, ensureType, ensureType, makeApproxLiteral, makeApproxScaleFactor, makeCase, makeCase, makeDivide, makeExactLiteral, makeIsNegative, makeIsPositive, makeMinus, makeMultiply, makePlus, makeRoundFactor, makeScaleFactor, powerOfTen, scaleDown, scaleDownDouble, scaleUp

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - CastArgAsTypeExpander
```
private CastArgAsTypeExpander(RexBuilder builder)
```
- Method Detail
  - getArgType
```
public abstract RelDataType getArgType(RexCall call,
                                       int ordinal)
```
  - expand
```
public RexNode expand(RexCall call)
```
    Description copied from class: ReduceDecimalsRule.RexExpander
    
    Rewrites an expression containing decimals. Normally, this method always performs a rewrite, but implementations may choose to return the original expression if no change was required.
    
    Specified by:
    
    expand in class ReduceDecimalsRule.RexExpander