org.apache.flink.table.planner.expressions

Class RexNodeExpression

java.lang.Object

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

All Implemented Interfaces:

org.apache.flink.table.expressions.Expression, org.apache.flink.table.expressions.ResolvedExpression

@Internal
public final class RexNodeExpression
extends Object
implements org.apache.flink.table.expressions.ResolvedExpression

Wrapper for a ResolvedExpression that originated from a RexNode.

If the RexNode was generated from a SQL expression, the expression can be made string serializable and print the original SQL string as a summary.

Constructor Summary

Constructors

Constructor and Description
RexNodeExpression(org.apache.calcite.rex.RexNode rexNode, org.apache.flink.table.types.DataType outputDataType, String summaryString, String serializableString)

Method Summary

Modifier and Type	Method and Description
<R> R	accept(org.apache.flink.table.expressions.ExpressionVisitor<R> visitor)
String	asSerializableString()
String	asSummaryString()
boolean	equals(Object o)
List<org.apache.flink.table.expressions.Expression>	getChildren()
org.apache.flink.table.types.DataType	getOutputDataType()
List<org.apache.flink.table.expressions.ResolvedExpression>	getResolvedChildren()
org.apache.calcite.rex.RexNode	getRexNode()
int	hashCode()
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

RexNodeExpression

public RexNodeExpression(org.apache.calcite.rex.RexNode rexNode,
                         org.apache.flink.table.types.DataType outputDataType,
                         @Nullable
                         String summaryString,
                         @Nullable
                         String serializableString)

Method Detail

getRexNode

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

asSummaryString

public String asSummaryString()

Specified by:

asSummaryString in interface org.apache.flink.table.expressions.Expression

asSerializableString

public String asSerializableString()

Specified by:

asSerializableString in interface org.apache.flink.table.expressions.ResolvedExpression

getChildren

public List<org.apache.flink.table.expressions.Expression> getChildren()

Specified by:

getChildren in interface org.apache.flink.table.expressions.Expression

accept

public <R> R accept(org.apache.flink.table.expressions.ExpressionVisitor<R> visitor)

Specified by:

accept in interface org.apache.flink.table.expressions.Expression

getOutputDataType

public org.apache.flink.table.types.DataType getOutputDataType()

Specified by:

getOutputDataType in interface org.apache.flink.table.expressions.ResolvedExpression

getResolvedChildren

public List<org.apache.flink.table.expressions.ResolvedExpression> getResolvedChildren()

Specified by:

getResolvedChildren in interface org.apache.flink.table.expressions.ResolvedExpression

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object