Package org.apache.drill.exec.expr.fn.output

Class OutputWidthCalculators.DefaultOutputWidthCalculator

java.lang.Object

org.apache.drill.exec.expr.fn.output.OutputWidthCalculators.DefaultOutputWidthCalculator

All Implemented Interfaces:

OutputWidthCalculator

Enclosing class:

OutputWidthCalculators

public static class OutputWidthCalculators.DefaultOutputWidthCalculator
extends Object
implements OutputWidthCalculator

Field Summary

Fields

Modifier and Type	Field	Description
static final OutputWidthCalculators.DefaultOutputWidthCalculator	INSTANCE

Constructor Summary

Constructors

Constructor	Description
DefaultOutputWidthCalculator()

Method Summary

Modifier and Type	Method	Description
int	getOutputWidth(List<OutputWidthExpression.FixedLenExpr> args)	Defines a function's output size estimate as some fixed value specified via an option If calculated size is greater than Types.MAX_VARCHAR_LENGTH, it is replaced with Types.MAX_VARCHAR_LENGTH.

Methods inherited from class java.lang.Object

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

Field Details

INSTANCE

public static final OutputWidthCalculators.DefaultOutputWidthCalculator INSTANCE

Constructor Details

DefaultOutputWidthCalculator

public DefaultOutputWidthCalculator()

Method Details

getOutputWidth

public int getOutputWidth(List<OutputWidthExpression.FixedLenExpr> args)

Defines a function's output size estimate as some fixed value specified via an option If calculated size is greater than Types.MAX_VARCHAR_LENGTH, it is replaced with Types.MAX_VARCHAR_LENGTH.

Specified by:

getOutputWidth in interface OutputWidthCalculator

Parameters:

args - logical expressions

Returns:

return type