org.apache.flink.table.planner.expressions

Class RexNodeExpression

java.lang.Object

org.apache.flink.table.planner.expressions.RexNodeExpression

All Implemented Interfaces:

Expression, ResolvedExpression

public class RexNodeExpression
extends Object
implements ResolvedExpression

Dummy wrapper for expressions that were converted to RexNode in a different way.

Constructor Summary

Constructors

Constructor and Description
RexNodeExpression(org.apache.calcite.rex.RexNode rexNode, DataType outputDataType)

Method Summary

Modifier and Type	Method and Description
<R> R	accept(ExpressionVisitor<R> visitor)
String	asSummaryString() Returns a string that summarizes this expression for printing to a console.
List<Expression>	getChildren()
DataType	getOutputDataType() Returns the data type of the computation result.
List<ResolvedExpression>	getResolvedChildren()
org.apache.calcite.rex.RexNode	getRexNode()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.flink.table.expressions.ResolvedExpression

asSerializableString

Constructor Detail

RexNodeExpression

public RexNodeExpression(org.apache.calcite.rex.RexNode rexNode,
                         DataType outputDataType)

Method Detail

getRexNode

public org.apache.calcite.rex.RexNode getRexNode()

asSummaryString

public String asSummaryString()

Description copied from interface: Expression

Returns a string that summarizes this expression for printing to a console. An implementation might skip very specific properties.

Specified by:

asSummaryString in interface Expression

Returns:

summary string of this expression for debugging purposes

getChildren

public List<Expression> getChildren()

Specified by:

getChildren in interface Expression

accept

public <R> R accept(ExpressionVisitor<R> visitor)

Specified by:

accept in interface Expression

getOutputDataType

public DataType getOutputDataType()

Description copied from interface: ResolvedExpression

Returns the data type of the computation result.

Specified by:

getOutputDataType in interface ResolvedExpression

getResolvedChildren

public List<ResolvedExpression> getResolvedChildren()

Specified by:

getResolvedChildren in interface ResolvedExpression