org.apache.flink.cdc.runtime.operators.transform

Class TransformFilter

java.lang.Object

org.apache.flink.cdc.runtime.operators.transform.TransformFilter

All Implemented Interfaces:

Serializable

public class TransformFilter
extends Object
implements Serializable

The TransformFilter applies to describe the information of the filter row.

A filter row contains:

• expression: a string for filter expression split from the user-defined filter.
• scriptExpression: a string for filter script expression compiled from the column expression.
• columnNames: a list for recording the name of all columns used by the filter expression.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
TransformFilter(String expression, String scriptExpression, List<String> columnNames)

Method Summary

Modifier and Type	Method and Description
List<String>	getColumnNames()
String	getExpression()
String	getScriptExpression()
boolean	isVaild()
static Optional<TransformFilter>	of(String filterExpression)

Methods inherited from class java.lang.Object

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

Constructor Detail

TransformFilter

public TransformFilter(String expression,
                       String scriptExpression,
                       List<String> columnNames)

Method Detail

getExpression

public String getExpression()

getScriptExpression

public String getScriptExpression()

getColumnNames

public List<String> getColumnNames()

of

public static Optional<TransformFilter> of(String filterExpression)

isVaild

public boolean isVaild()