org.apache.flink.table.delegation

Interface PlannerExpressionParser

@Internal
public interface PlannerExpressionParser

Temporary utility for parsing expressions inside a String. This parses exactly the same expressions that would be accepted by the Scala Expression DSL.

PlannerExpressionParser is used by ExpressionParser to parse expressions.

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	PlannerExpressionParser.SingletonPlannerExpressionParser Util class to create PlannerExpressionParser instance.

Method Summary

Modifier and Type	Method and Description
static PlannerExpressionParser	create()
Expression	parseExpression(String exprString)
List<Expression>	parseExpressionList(String expression)

Method Detail

create

static PlannerExpressionParser create()

parseExpression

Expression parseExpression(String exprString)

parseExpressionList

List<Expression> parseExpressionList(String expression)