org.apache.paimon.flink.action.cdc

Class Expression.LowerExpression

java.lang.Object

org.apache.paimon.flink.action.cdc.Expression.NoLiteralsStringExpressionBase

org.apache.paimon.flink.action.cdc.Expression.LowerExpression

All Implemented Interfaces:

Serializable, Expression

Enclosing interface:

Expression

public static final class Expression.LowerExpression
extends Expression.NoLiteralsStringExpressionBase

Convert string to lower case.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.paimon.flink.action.cdc.Expression

Expression.CastExpression, Expression.DateFormat, Expression.ExpressionCreator, Expression.ExpressionFunction, Expression.LowerExpression, Expression.NoLiteralsStringExpressionBase, Expression.NowExpression, Expression.ReferencedField, Expression.Substring, Expression.TemporalExpressionBase<T>, Expression.TemporalToIntConverter, Expression.TrimExpression, Expression.TruncateComputer, Expression.UpperExpression

Constructor Summary

Constructors

Constructor and Description
LowerExpression(String fieldReference, DataType fieldType, String... literals)

Method Summary

Modifier and Type	Method and Description
String	eval(String input) Compute value from given input.
String	name() Return name of this expression.

Methods inherited from class org.apache.paimon.flink.action.cdc.Expression.NoLiteralsStringExpressionBase

fieldReference, outputType

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.paimon.flink.action.cdc.Expression

cast, create, substring, truncate

Constructor Detail

LowerExpression

public LowerExpression(String fieldReference,
                       DataType fieldType,
                       String... literals)

Method Detail

eval

public String eval(String input)

Description copied from interface: Expression

Compute value from given input. Input and output are serialized to string.

name

public String name()

Description copied from interface: Expression

Return name of this expression.